# seedlink — SeisComP Release documentation

6.9.0

# seedlink

Real-time waveform server implementing the SeedLink protocol.

## Description

SeedLink is a real-time data acquisition protocol and a client-server software that implements this protocol. The SeedLink protocol is based on TCP. All connections are initiated by the client. During handshaking phase the client can subscribe to specific stations and streams using simple commands in ASCII coding. When handshaking is completed, a stream of SeedLink “packets” consisting of a 8-byte SeedLink header (containing the sequence number) followed by a 512-byte miniSEED record, is sent to the client. The packets of each individual station are always transferred in timely (FIFO) order. The SeedLink implementation used in SeisComP is the oldest and most widely used, however, other implementations exist. Another well-known implementation is deployed in IRIS DMC and some manufacturers have implemented SeedLink in their digitizer firmware. All implementations are generally compatible, but not all of them support the full SeedLink protocol. On the other hand IRIS DMC implements some extensions which are not supported by other servers. In the following we use “SeedLink” to denote the SeedLink implementation used in SeisComP. The data source of a SeedLink server can be anything which is supported by a SeedLink plugin - a small program that sends data to the SeedLink server. Plugins are controlled by the SeedLink server, e.g., a plugin is automatically restarted if it crashes or a timeout occurs. Data supplied by a plugin can be a form of miniSEED packets or just raw integer samples with accompanying timing information. In the latter case, the SeedLink server uses an inegrated “Stream Processor” to create the desired data streams and assemble miniSEED packets.

### Supported data sources

The table below lists digitizers and data acquisition systems that are supported by SeedLink plugins. More plugins (Kinemetrics K2, Lennartz MARS-88, Lennartz PCM 5800, etc.) have been implemented by various users, but are not (yet) included in the package. The included C language plugin interface is described in section 5.1.1.5. Antelope, Earthworm and NAQS can also import data from SeisComP. In SeisComP the class RecordStream is implemented that supports both SeedLink and ArcLink sources; this class is used by all SeisComP modules that work with waveform data. On a lower level, SeedLink clients can be implemented using the Libslink [16] software library or its Java counterpart, JSeedLink. Libslink supports Linux/UNIX, Windows and MacOS X platforms, and comes with an exhaustive documentation in form of UNIX manual pages.

Plugin name | Source or Digitizer/DAS | Plugin Implementer
--- | --- | ---
antelope * | Antelope | Chad Trabant (IRIS)
caps | CAPS server [3] | gempa GmbH
chain | SeedLink | GFZ
dm24 ** | Guralp DM24 | GFZ; based on libgcf2 from Guralp
dr24 | Geotech DR24 | GFZ
echopro_3ch100hz / echopro_6ch200hz | Kelunji Echo/EchoPro | Oyvind Natvik (UiB)
edata | Earth Data PS2400/PS6-24 | GFZ
ewexport | Earthworm export server (TCP/IP) | Chad Trabant (IRIS)
ewexport_pasv | Earthworm passive export server (TCP/IP) | Chad Trabant (IRIS)
fs_mseed | miniSEED file plugin | GFZ
gdrt | GDRT server | GFZ
hrd24 | Nanometrics HRD24 | GFZ; Recai Yalgin
liss | LISS | Chad Trabant (IRIS)
m24 * | Lennartz M24 | Lennartz Electronic GmbH
maram | maRam Weatherstation V1 | GFZ
minilogger | SEP064 USB Seismometer Interface | GFZ; Anthony Lomax
mseedfifo | Generic | GFZ
mseedscan | Transfers miniSEED files from a directory | Chad Trabant (IRIS)
mk6 * | MK6 | Jan Wiszniowski (IGPAS)
mppt * | SunSaver MPPT via Modbus TCP/IP | GFZ
mws | Reinhardt MWS5/MWS9 Weather Station | GFZ
naqs | NAQS | Chad Trabant (IRIS); based on sample code from Nanometrics, Inc.
nmxp * | NAQS | Matteo Quintiliani (INGV)
nrts ** | NRTS | GFZ; based on ISI toolkit from David E. Chavez
optodas | OptoDAS interrogator via ZeroMQ | GFZ
ps2400_eth | Earth Data PS2400/PS6 Ethernet | GFZ; gempa GmbH
q330 | Quanterra Q330 | GFZ; based on lib330 maintained by ISTI, Inc.
comserv ** | Quanterra Q380/Q680, Q4120, Q720 | GFZ; based on Comserv by Quanterra, Inc.
reftek | RefTek RTPD | GFZ; based on software library provided by RefTek, Inc.
sadc | SARA SADC10/18/20/30 | GFZ
scream | SCREAM | Reinoud Sleeman (KNMI)
scream_ring | SCREAM | Reinoud Sleeman (KNMI), This is the second revision of the scream plugin which supports buffering for short-term completeness.
vaisala | Vaisala ASCII protocol (serial plugin) | GFZ
wago | WAGO MODBUS/TCP devices | GFZ
wave24 * | Wave24 | MicroStep-MIS
win | WIN | GFZ; based on source code of WIN system
ws2300 ** | Lacrosse 2300 Weather Station | GFZ; based on open2300 library from Kenneth Lavrsen

* Third-party plugin, not included in SeisComP distribution

** No longer supported

### Telnet interface

seedlink provides a telnet interface accepting the commands set out in Commands through the seedlink `port`

    telnet [host] [port]

Example fetching the SeedLink version:

    $ telnet localhost 18000
    Trying 127.0.0.1...
    Connected to localhost.gempa.de.
    Escape character is '^]'.
    hello
    SeedLink v3.3 (2020.122)
    bye
    Connection closed by foreign host.

### Queries

seedlink provides a query interface. Use slinktool to send queries for fetching:

- Station and stream information

- Waveform data

## Protocol

A SeedLink session starts with opening the TCP/IP connection and ends with closing the TCP/IP connection. During the session the following steps are performed in order:

- Opening the connection

- Handshaking

- Transferring SeedLink packets

We will take a closer look at the protocol. Note, the details are normally hidden from the clients by the libslink software library; therefore it is not necessary to be familiar with the protocol in order to implement clients.

### Handshaking

When the TCP/IP connection has been established the server will wait for the client to start handshaking without initially sending any data to the client. During handshaking the client sends SeedLink commands to the server. The commands are used to set the connection into a particular mode, setup stream selectors, request a packet sequence number to start with and eventually start data transmission. SeedLink commands consist of an ASCII string followed by zero or several arguments separated by spaces and terminated with carriage return (<cr>, ASCII code 13) followed by an optional linefeed (<lf>, ASCII code 10). The commands can be divided into two categories: “action commands” and “modifier commands”. Action commands perform a function such as starting data transfer. Modifier commands are used to specialize or modify the function performed by the action commands that follow. When a server receives a modifier command it responds with the ASCII string “OK” followed by a carriage return and a line feed to acknowledge that the command has been accepted. If the command was not recognized by the server or has invalid parameters, then the ASCII string “ERROR” is sent as a response to the client followed by a carriage return and a line feed. The client should not send any further commands before it has received a response to the previous modifier command. If a network error or timeout occurs the client should close the connection and start a new session. Data transmission is started when the server receives the commands DATA, FETCH, TIME or END as described in section 5.1.1.3. Once the data transfer has been started no more commands, except INFO, should be sent to the server. The flow diagram of handshaking in uni-station vs. multi-station mode is shown in Handshaking in uni-station vs. multi-station mode..

Handshaking in uni-station vs. multi-station mode.

### Data Transfer

When handshaking has been completed the server starts sending data packets, each consisting of an 8-byte SeedLink header followed by a 512-byte miniSEED record. The SeedLink header is an ASCII string consisting of the letters “SL” followed by a six-digit hexadecimal packet sequence number. Each station has its own sequence numbers. If multiple stations are requested using a single TCP channel the client should look at the contents of the miniSEED header to determine the station name (or to maintain the current sequence numbers for each station). A sequence number in the same format is used as an argument to the commands “DATA” or “FETCH” to start the data transfer from a particular packet. Each SeedLink node re-assigns sequence numbers for technical reasons. It is not possible to use the same sequence numbers when communicating with alternative servers. Within a particular node the sequence numbers of a single station are consecutive and wrap around at FFFFFF. This can be used by the client to detect “sequence gaps” (e.g., some data has been missed by the client due to long network outage or a software bug). However, if stream selectors are used the sequence numbers are only guaranteed to be in increasing order (with wrap) because some packets might be filtered out by the server. In this case the first packet is not necessarily the one requested, but the nearest packet (not older than requested) that matches installed selectors. The data is transferred as a continuous stream without any error detections or flow control because these functions are performed by the TCP protocol. This guarantees the highest data transfer rate that is possible with the particular hardware and TCP/IP implementation. Obviously, the average data transfer rate must be greater than the rate at which new data becomes ready to send at the server. If this is the case, sooner or later the server has sent all data available to the client. When this happens, depending on the SeedLink mode, the server sends new data as soon as it arrives or appends ASCII string “END” to the last packet and waits for the client to close connection. The latter mode is called “dial-up mode” because it is normally used in conjunction with dial-up lines to open the connection periodically for a short time and download all data available. A SeedLink packet can never start with “END” thus no ambiguity arises.

### Commands

HELLO

  responds with a two-line message (both lines terminated with <cr><lf>). The first line contains the version number of the SeedLink daemon, the second line contains station or data center description specified in the configuration. HELLO is used mainly for testing a SeedLink server with “telnet”. It is also used by libslink to determine the server version.

CAT

  shows the station list. Used mainly for testing a SeedLink server with “telnet”.

BYE

  closes the connection. Used mainly for testing a SeedLink server with “telnet”.

STATION station code [network code]

  turns on multi-station mode, used to transfer data of multiple stations over a single TCP channel. The STATION command, followed by SELECT (optional) and FETCH, DATA or TIME commands is repeated for each station and the handshaking is finished with END. STATION is a modifier command (it modifies the function of subsequent SELECT, and DATA, FETCH or TIME commands) so it responds with “OK” on success, “ERROR” otherwise.

END

  end of handshaking in multi-station mode. This is an action command, because it starts data transfer. No explicit response is sent.

SELECT [pattern]

  when used without pattern, all selectors are canceled. Otherwise, the pattern is a positive selector to enable matching miniSEED stream transfer. The pattern can be used as well as a negative selector with a leading “!” to prevent the transfer of some miniSEED streams. Only one selector can be used in a single SELECT request. A SeedLink packet is sent to the client if it matches any positive selector and doesn’t match any negative selectors.

General format of selectors is LLCCC.T where LL is location, CCC is channel, and T is type (one of DECOTL for data, event, calibration, blockette, timing, and log records). “LL”, “.T”, and “LLCCC.” can be omitted, meaning “any”. It is also possible to use “?” in place of L and C. Some examples can be found in table 3-1 in section 3.3.3.2. SELECT is a modifier command (it modifies the function of subsequent DATA, FETCH or TIME commands) so a response follows with “OK” on success, “ERROR” otherwise.

DATA [n [begin time]]

  in multi-station mode this sets the current station into real-time mode and (optionally) the current sequence number to n; in uni-station mode this starts data transfer in real-time mode from packet n or from the next packet available if used without arguments. If begin time is used, any older packets are filtered out. begin time should be in the form of 6 decimal numbers separated by commas in the form: year,month,day,hour,minute,second, e.g. ’2002,08,05,14,00,00’. DATA is a modifier command in multi-station mode (responds with “OK” or “ERROR”); in uni-station mode it is an action command (no explicit response is sent).

FETCH [n [begin time]]

  works like DATA but sets the station to dial-up mode instead of real-time mode.

TIME [begin time [end time]]

  extracts the time window from begin time to end time. The times are specified in the form of 6 decimal numbers separated by commas in the form: year,month,day,hour,minute,second, e.g. ’2002,08,05,14,00,00’.

INFO level

  requests an INFO packet containing XML data embedded in a miniSEED log record. level should be one of the following: ID, CAPABILITIES, STATIONS, STREAMS, GAPS, CONNECTIONS, ALL. The XML document conforms to the Document Type Definition (DTD) shown in section ???. The amount of info available depends on the configuration of the SeedLink server.

## Plugin Interface

In order to implement a SeedLink plugin a developer needs two files included in the SeisComP distribution: `plugin.h` and `plugin.c`. In these files the following public functions are defined:

int send_raw3(const char *station, const char *channel, const struct ptime *pt, int usec_correction, int timing_quality, const int32_t *dataptr, int number_of_samples)

is used to send a raw packet (array of 32-bit integer samples) to SeedLink. The parameters are:

station

  station ID, must match one of the defined stations in seedlink.ini. (Up to 10 characters.)

channel

  channel ID, referenced by the “input” element in streams.xml. (Up to 10 characters.)

pt

  time of the first sample in the array. If NULL then time is calculated relative to the previous send_raw3() call. struct ptime is defined in `plugin.h`.

usec_correction

  time correction in microseconds to be written in the SEED data header. Can be useful if the digitizer is not phase locked to GPS.

timing_quality

  timing quality in percent (0-100). The number is directly written into miniSEED header (blockette 1001). Semantics is implementation-defined. Usually 100 means that GPS is in lock and 0 means there never was a GPS lock, so the timing is completely unreliable. When GPS goes out of lock, the value can slowly decrease reflecting a possible timedrift.

dataptr

  Array of signed 32-bit samples.

Number_of_samples

  Length of the sample array.

Special cases:

- If timing_quality = -1, blockette 1001 is omitted.

- If number_of_samples = 0 & pt = NULL set new time without sending any data.

- If dataptr = NULL send a gap (advance time as if number of samples was sent without sending any actual data).

int send_raw_depoch(const char *station, const char *channel, double depoch, int usec_correction, int timing_quality, const int32_t dataptr, int number_of_samples)

same as send_raw3() except time is measured in seconds since 1 January 1970 (depoch). Leap seconds are ignored.

int send_flush3(const char *station, const char *channel)

flushes all miniSEED data streams associated with a channel. All buffered data is sent out creating “unfilled” miniSEED records if necessary. The parameters are:

station

  station ID.

Channel

  channel ID.

int send_mseed(const char *station, const void *dataptr, int packet_size)

is used to send a miniSEED packet to SeedLink. Such packets are not further processed. The parameters are:

station

  station ID.

dataptr

  pointer to 512-byte miniSEED packet.

packet size

  must be 512.

int send_log3(const char *station, const struct ptime *pt, const char *fmt, ...)

is used to send a log message to SeedLink (LOG stream). It must be noted that encapsulating log messages in miniSEED records is relatively inefficient because each message takes at least one record (512 bytes), regardless of message size. Due to 64-byte miniSEED header, up to 448 bytes per record can be used * The parameters are:

station

  station ID.

pt

  the timestamp of the message.

fmt

  format string, as used by printf(), followed by a variable number of arguments.

## Compatibility with Earlier Versions

It is possible to determine the version of the plugin interface by looking at the C macro PLUGIN_INTERFACE_VERSION. The current version is 3, therefore all functions that have changed since earlier versions end with “3”. It is possible to enable full backward compatibility with earlier versions of the plugin interface by defining the C macro PLUGIN_COMPATIBILITY. In this case the old functions are also defined.

## SeedLink configuration files

The following configuration files are used by SeedLink and its plugins.

Warning

Some files such as seedlink.ini, plugin.ini and chain*.xml are generated by the seiscomp tool according to the configuration in `etc/seedlink.cfg` and its bindings. They live in `var/lib/seedlink` and should not be modified. If modifications are necessary then the generator needs to be changed to better support the desired user options.

plugins.ini

  Configuration file for SeedLink plugins. Used by serial_plugin, fs_plugin and comserv_plugin.

seedlink.ini

  Main configuration file for SeedLink. For more details see below.

filters.fir

  Coefficients of SeedLink’s decimating FIR filters. If a filter’s name ends with “M”, it is a minimum-phase filter – causal filter with minimized (non-constant) phase delay; since the filter is non-symmetric all coefficients must be given. Otherwise the filter is a zero-phase filter, i.e. a non-causal filter with zero phase delay; in this case the filter is symmetric and so only half of the coefficients must be given (it is not possible to use a zero-phase filter with an odd number of coefficients).

Warning

The coefficients for non-symmetric (minimum-phase) FIR filters in the filters.fir file are stored in reverse order. It is important to reverse the order of coefficients if the operator adds a new minimum-phase filter or uses the included minimum-phase filters for another application. The coefficients for symmetric (zero-phase) FIR filters are not stored in reverse order. As a sanity check for symmetric filters the largest coefficient is always in the middle of the symmetry.

streams.xml

  SeedLink stream configuration file for the internal stream processor, referenced from seedlink.ini. For details see below.

*.ini files have a somewhat obscure syntax. They contain zero or more sections, each beginning with a section name in squared brackets which should appear on a line of its own. Section name cannot contain spaces and squared brackets, but it can be optionally surrounded by spaces. Each section consists of zero or more entries – definitions and assignments. A definition consists of a keyword and a name separated by spaces (e.g. “station EDD”). An assignment consists of a parameter and a value separated by the “=” sign and optionally surrounded by spaces (e.g. “network = GE”).

The set of assignments that immediately follow a definition is in the scope of that definition. Assignments in the beginning of a section are “global” – they are used to set some generic parameters and provide default values (e.g. “network = GE” in the beginning of the section sets the default network that can be overridden in the scope of a station definition).

Parameters and keywords are case insensitive and must not contain the symbols “=”, “[”, “]” or spaces. Names must not contain “=” signs or spaces. Values must not contain “=” signs or spaces, unless enclosed in double quotes. Double quotes that are part of the value itself must be preceded by “".

Each assignment must be complete on a single line, but several assignments can appear on one line, separated by spaces. Any line beginning with a “#” or “*” character is regarded as a comment and ignored.

### seedlink.ini

seedlink.ini may contain several sections, but only one having the same name as the executable to be used. A section in seedlink.ini has the following structure (parameters are shown in courier, default values are shown in squared brackets, but relying on them is not recommended):

seedlink.ini is generated from `~/.seiscomp/seedlink.cfg` and `etc/seedlink.cfg`.

### streams.xml

This file, like all XML documents, has a tree-like structure. The root element is called “stream” and it in turn contains “proc” elements which are referenced by name in seedlink.ini. A “proc” element contains one or more “tree” elements, which in turn contain “input” and “node” elements. There should be one “input” element per plugin channel; if an “input” element is missing, the channel is ignored and you will see a message like:

    Jun 24 12:56:28 st55 seedlink: EDD channel X ignored

Here is the description of all elements and attributes:

element streams

  root element, has no attributes.

element proc

  defines a “proc” object (set of “stream trees”), referenced from seedlink.ini.

attribute name

  name of “proc” object, for reference.

element using

  used to include all “stream trees” defined by one “proc” object in another “proc” object.

attribute name

  the name of referenced “proc” object.

element tree

  defines a “stream tree” – a downsampling scheme of an input channel.

element input

  associates an input channel with the stream tree.

attribute name

  name of the input channel; depends on the configuration of the particular plugin (usual channel names are “Z”, “N” and “E”).

attribute channel

  name of the output channel (last letter of a miniSEED stream name).

attribute location

  miniSEED location code of the output channel (up to two characters).

attribute rate

  sampling rate of the input channel (must match the actual sampling rate, which is dependent on the configuration of the plugin and digitizer).

element node

  defines a node of a stream tree; this element is recursive, meaning that it may contain one or more “node” elements itself.

attribute filter

  use the named filter for decimation; filters are defined in file filters.fir.

attribute stream

  create miniSEED output stream at this node. The value of the attribute should be a miniSEED stream name without the last character (which is taken from the attribute “channel” of element “input”).

`streams.xml` is generated into `var/lib/seedlink/streams.xml`. Each data plugin provides templates with predefined procs. If e.g. the chain plugin is configured with proc stream100 then `share/templates/seedlink/chain/streams_stream100.tpl` is being read and generated into the final `streams.xml`. Own proc definitions can be added by creation a corresponding template file.

Again, the source and proc definition is used to resolve the streams proc template file at `share/templates/seedlink/[source]/streams_[proc].tpl`.

## Module Configuration

Note

seedlink is a standalone module and does not inherit global options.

`etc/defaults/seedlink.cfg`
`etc/seedlink.cfg`
`~/.seiscomp/seedlink.cfg`

port

  Default: `18000`

  Type: int

  Defines the Seedlink port to accept requests. If this port is changed and other modules depend on it (slarchive, processing) those ports must be updated as well!

filebase

  Type: dir

  Path to the base directory of SeedLink data files (disk buffer).

network

  Type: string

  Default network code. Used when a network code is omitted by a client in STATION request. Should be set to the network code of the majority of configured stations. 1 or 2 characters long, uppercase.

trusted

  Default: `127.0.0.0/8`

  Type: list:string

  List of trusted addresses.

access

  Default: `0.0.0.0/0`

  Type: list:string

  List of IP addresses or IP/mask pairs (in ipchains/iptables syntax) that can access stations. Per station access definitions supersede this parameter. By default any client can access all stations.

stream_check

  Default: `true`

  Type: boolean

  Check start and end times of streams.

gap_check_pattern

  Default: `XXXXX`

  Type: string

  If stream_check = enabled, also check for gaps in all channels that match given pattern. Register all gaps that are larger than +-0.5 seconds. gap_check_pattern = [EBLV][HLNG][ZNE]|S[NG][ZNE]. Disabled to save memory.

gap_treshold

  Default: `500000`

  Type: int

  Time difference between records (microseconds) above which a gap is declared.

window_extraction

  Default: `true`

  Type: boolean

  Can be enabled or disabled. Required for slinktool option -tw.

window_extraction_trusted

  Default: `true`

  Type: boolean

  Same as window_extraction for trusted IP addresses.

websocket

  Default: `false`

  Type: boolean

  Allow websocket connections.

websocket_trusted

  Default: `false`

  Type: boolean

  Same as websocket for trusted IP addresses.

msrtsimul

  Default: `false`

  Type: boolean

  If activated Seedlink uses the mseedfifo to read records and only the mseedfifo_plugin is started. This command is useful to playback historic data by eg msrtsimul.

inventory_connection

  Type: string

  Defines a database read connection to be used for Seedlink station descriptions. If no database is to be used (the default; configure with "") then the station code will be used. Example: "mysql://sysop:sysop@localhost/seiscomp". If a remote host is specified, ensure that its database server is reachable from this computer.

info

  Default: `streams`

  Type: string

  Info level provided to arbitrary hosts.

info_trusted

  Default: `all`

  Type: string

  Info level provided to trusted hosts.

request_log

  Default: `true`

  Type: boolean

  Whether requests should be logged.

proc_gap_warn

  Default: `10`

  Type: int

  Unit: microseconds

  Give warning if an input channel has time gap larger than this (microseconds).

proc_gap_flush

  Default: `100000`

  Type: int

  Flush streams if an input channel has time gap larger than this (microseconds).

proc_gap_reset

  Default: `1000000`

  Type: int

  Reset FIR filters if an input channel has time gap larger than this (microseconds).

backfill_buffer

  Default: `0`

  Type: float

  Unit: s

  Enable backfilling buffer for out-of-order records. This values defines its capacity in seconds.

seq_gap_limit

  Default: `100000`

  Type: int

  Maximum allowed deviation from the sequence number of oldest packet if packet with requested sequence number is not found. If seq_gap_limit is exceeded, data flow starts from the next packet coming in, otherwise from the oldest packet in buffer.

connections

  Default: `500`

  Type: int

  Total number of TCP/IP connections allowed.

connections_per_ip

  Default: `20`

  Type: int

  Maximum number of TCP/IP connections per IP.

bytespersec

  Default: `0`

  Type: int

  Unit: B/s

  Maximum speed per connection (0: throttle disabled).

lockfile

  Default: `@ROOTDIR@/var/run/seedlink.pid`

  Type: string

  Path to lockfile to prevent multiple instances.

buffers

  Default: `100`

  Type: int

  Size of memory buffer (number of recent Mini-SEED records kept in RAM).

segments

  Default: `50`

  Type: int

  Number of disk buffer segments (files under <dir>/station/segments/ where <dir> is the directory given by the filebase parameter).

segsize

  Default: `1000`

  Type: int

  Size of one disk buffer segment in the records (512-byte units).

blanks

  Default: `10`

  Type: int

  Number of blank records to insert after the re-scan of disk buffer if <dir>/station/buffer.xml is not found (assuming the server did not terminate correctly).

encoding

  Default: `steim2`

  Type: string

  Encoding of Mini-SEED records created by SeedLink. The value must be steim1 or steim2. If omitted, the global encoding parameter is used.

sequence_file_cleanup

  Default: `0`

  Type: int

  Unit: min

  If configured with a value greater than zero then all sequence files created by the chain plugin are deleted which are older than X minutes before Seedlink is started.

### mseedfifo extension

Global options for the mseedfifo plugin

plugins.mseedfifo.fifo

  Type: string

  Path to named fifo pipe. Default: $SEISCOMP_ROOT/var/run/seedlink/mseedfifo for seedlink. Alias modules automatically replace "seedlink" by the alias name.

plugins.mseedfifo.noexit

  Default: `false`

  Type: boolean

  Do not exit plugin if writer closes the fifo.

### q330 extension

Global options for the Q330 plugin

plugins.q330.udpbase

  Default: `5500`

  Type: int

  UDP base port used when udp port is defined as "auto"

### chain extension

Global options for the chain plugin

plugins.chain.dialupConnections

  Default: `0`

  Type: int

  Defines the maximum number of concurrent dial-up connections. A value of 0 does not limit the concurrent connections.

plugins.chain.loadTimeTable

  Default: `true`

  Type: boolean

  If enabled load_timetable is used by the chain plugin to request the available time windows of each stream in the Seedlink buffer to discard older records.

### caps extension

Global options for the CAPS plugin

plugins.caps.maxTimeDiff

  Default: `86400`

  Type: float

  The maxmimum time difference with respect to current time of the end time of a received record. If exceeded then the end time will not be logged into the state file.

plugins.caps.inOrder

  Default: `false`

  Type: boolean

  Request all records in-order. Out-of-order records will be skipped.

## Bindings Parameters

access

  Default: `0.0.0.0/0`

  Type: list:string

  List of IP addresses or IP/mask pairs (in ipchains/iptables syntax). Only if a client’s IP address matches one of those the station is shown (slinktool -L, etc.) and accessible. If omitted, the global access parameter is used. If the global access parameter is not set any client can access the station.

buffers

  Default: `100`

  Type: int

  Size of memory buffer (number of recent Mini-SEED records kept in RAM).

segments

  Default: `50`

  Type: int

  Number of disk buffer segments (files under <dir>/station/segments/ where <dir> is the directory given by the filebase parameter).

segsize

  Default: `1000`

  Type: int

  Size of one disk buffer segment in the records (512-byte units).

blanks

  Default: `10`

  Type: int

  Number of blank records to insert after the re-scan of disk buffer if <dir>/station/buffer.xml is not found (assuming the server did not terminate correctly).

encoding

  Type: string

  Encoding of Mini-SEED records created by SeedLink. The value must be steim1 or steim2. If omitted, the global encoding parameter is used.

backfill_buffer

  Default: `0`

  Type: float

  Unit: s

  Enable backfilling buffer for out-of-order records when raw samples are transmitted. This values defines its capacity in seconds.

proc

  Type: string

  Name of the proc object uniquely defined in a seedlink template file, e.g. $SEISCOMP_ROOT/share/templates/seedlink/streams_{name}.tpl. proc is used for processing, e.g. renaming or resampling of raw streams (streams submitted by a plugin as raw samples). The template file is used to generate $SEISCOMP_ROOT/var/lib/seedlink/streams.xml .

  Example template: $SEISCOMP_ROOT/share/templates/seedlink/streams_stream100.tpl

sources

  Type: list:string

  Defines a list of extension bindings to be used. Each binding can then be configured individually.

  Available identifiers: antelope caps chain dr24 echopro_3ch100hz echopro_6ch200hz edata ewexport ewexport_pasv fs_mseed gdrt gmeteo hrd24 liss m24 maram minilogger miscScript miscSerial mk6 mppt mseedfifo mseedscan mws naqs nmxp optodas ps2400_eth q330 reftek sadc scream scream_ring vaisala wago wave24 win

      # param1 and param2 are just placeholders.
      sources = antelope, caps
      sources.antelope1.param1 = value11
      sources.antelope1.param2 = value12
      sources.caps2.param1 = value21
      sources.caps2.param2 = value22

      # To use the same binding twice, aliases must be used.
      # Aliases are created by prepending a unique name followed by a colon
      sources = antelope, antelope_2:antelope
      sources.antelope.param1 = value11
      sources.antelope.param2 = value12
      sources.antelope_2.param1 = value21
      sources.antelope_2.param2 = value22

### antelope

Antelope ORB (TCP/IP)

sources.antelope.select

  Default: `*`

  Type: string

  Regular expression to match ORB packets, default is all waveform data.

sources.antelope.address

  Default: `localhost`

  Type: string

  Hostname or IP of the Antelope ORB.

sources.antelope.port

  Default: `39136`

  Type: int

  Port of the Antelope ORB.

sources.antelope.proc

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### caps

Transfers data from CAPS to SeedLink server

sources.caps.address

  Default: `localhost:18002`

  Type: string

  CAPS URL to fetch data from, format: [[caps|capss]://][user:pass@]host[:port]

sources.caps.streams

  Default: `*.*`

  Type: string

  Comma-separated list of streams. Stream format is [LOC.CHA]. Streams may contain wildcards

sources.caps.unpack

  Type: string

  Comma-separated list of streams to unpack. Stream format is [LOC.CHA]. Streams may contain wildcards. Unpacking in this context means that incoming data is converted to RAW data before sending it to SeedLink. The proc option must be set when using this option. For each stream there must be a corresponding entry in the proc object so that the raw stream can be processed by SeedLink. The name of the input entry must match the chanel ID, e.g., 00ENZ or ENZ.

sources.caps.proc

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### chain

Seedlink server (TCP/IP)

sources.chain.address

  Default: `geofon.gfz-potsdam.de`

  Type: string

  Hostname or IP of the Seedlink server.

sources.chain.port

  Default: `18000`

  Type: int

  Port of the Seedlink server

sources.chain.selectors

  Type: list:string

  List of stream selectors. If left empty all available streams will be requested. See slinktool manpage for more information.

sources.chain.station

  Type: string

  Defines the remote station code if different from the inventory station code. Usually leave this parameter unconfigured. If configured and different from the inventory station code, the remote station code will be renamed to match the inventory station code.

sources.chain.network

  Type: string

  Defines the remote network code if different from the inventory network code. Usually leave this parameter unconfigured. If configured and different from the inventory network code, the remote network code will be renamed to match the inventory network code.

sources.chain.group

  Type: string

  Usually stations with the same source addresses and dialup options are grouped together and managed by a chain plugin process. Here you can define an additional group ID. Available placeholders are $NET and $STA that are replaced by the network code or station code. Whitespaces are replaced by underscores when generating chain.xml.

sources.chain.defaultTimingQuality

  Type: int

  The default timing quality is used when unpacking data that does not contain blockette 1001, that allows SeedLink to construct blockette 1001 for downsampled data.

sources.chain.overlapRemoval

  Type: string

  If overlap removal is set to "initial" or "full", then earlier records will be discarded (record number is used in case several subsequent records have the same header time). All other values are treated as "none". Leave this option unset unless you know what you are doing.

sources.chain.batchmode

  Default: `true`

  Type: boolean

  If enabled then the chain plugin tries to subscribe for channels with the BATCH command which is magnitudes faster than the old handshake. Not all SeedLink servers support the BATCH mode so it needs to be turned off in case of problems.

sources.chain.dialup.enable

  Default: `false`

  Type: boolean

  Enables dialup mode. Needs schedule and uptime to be set accordingly.

sources.chain.dialup.uptime

  Default: `600`

  Type: int

  Unit: s

  Dialup uptime in seconds.

sources.chain.dialup.schedule

  Default: `0,30 * * * *`

  Type: string

  The dialup schedula in cron format.

sources.chain.dialup.ifup

  Type: string

  An optional dialup ifup script.

sources.chain.dialup.ifdown

  Type: string

  An optional dialup ifdown script.

sources.chain.channels.rename

  Type: list:string

  Optionally rename channels. This is a comma separated list of strings where each item defines one mapping from source to destination in the format "LOCCHA:LOCCHA". Either LOC or CHA can contain wildcard characters (question mark) and the location code (LOC) in both identifiers is optional. ??HHZ:10HHZ renames all HHZ location codes to 10, 0J???:??? renames all 0J location codes to nothing (‘’), HH?:EH? renames all HH channels to EH, etc.

sources.chain.channels.unpack

  Type: list:string

  Optionally unpack channels instead of sending them as miniseed to Seedlink. Unpacked streams can be downsampled by Seedlink. This is a list of strings where each item defines one unpack mapping in the format "LOCCHA:ID:1" where ID can be an arbitrary channel id which must match the definition of a stream in streams.xml. The last ":1" is optional and defines if the unpacked data should be doubled (duplicate each sample). In case rename mappings are active, LOCCHA refers to the final channel name after renaming.

### dr24

Geotech DR24 (serial plugin)

sources.dr24.comport

  Default: `/dev/data`

  Type: string

  Serial port.

sources.dr24.baudrate

  Default: `19200`

  Type: int

  Baud rate.

sources.dr24.proc

  Default: `dr24_20`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### echopro_3ch100hz

Kelunji Echo/EchoPro serial plugin (3 Ch, 200 Hz)

sources.echopro_3ch100hz.comport

  Default: `/dev/ttyS0`

  Type: string

  Serial Port.

sources.echopro_3ch100hz.proc

  Default: `echopro_100`

  Type: string

  Name of stream processing scheme.

### echopro_6ch200hz

Kelunji Echo/EchoPro serial plugin (6 Ch, 100 Hz)

sources.echopro_6ch200hz.comport

  Default: `/dev/ttyS0`

  Type: string

  Serial Port.

sources.echopro_6ch200hz.proc

  Default: `echopro_200`

  Type: string

  Name of stream processing scheme.

### edata

EarthData PS6-24 (serial plugin)

sources.edata.comport

  Default: `/dev/data`

  Type: string

  Serial port.

sources.edata.baudrate

  Default: `115200`

  Type: int

  Baud rate.

sources.edata.proc

  Default: `edata_100`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### ewexport

Earthworm export server (TCP/IP)

sources.ewexport.address

  Type: string

  Hostname or IP of the Earthworm export server.

sources.ewexport.port

  Type: int

  Port of the Earthworm export server.

sources.ewexport.proc

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

sources.ewexport.heartbeat.message

  Default: `alive`

  Type: string

  Text for heartbeat to server.

sources.ewexport.heartbeat.rate

  Default: `120`

  Type: int

  Rate at which to expect heartbeats from server in seconds.

### ewexport_pasv

Earthworm passive export server (TCP/IP)

sources.ewexport_pasv.address

  Type: string

  Bind IP of the Earthworm passive export server.

sources.ewexport_pasv.port

  Type: int

  Port of the Earthworm passive export server.

sources.ewexport_pasv.proc

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

sources.ewexport_pasv.heartbeat.message

  Default: `alive`

  Type: string

  Text for heartbeat to server.

sources.ewexport_pasv.heartbeat.rate

  Default: `120`

  Type: int

  Rate at which to expect heartbeats from server in seconds.

### fs_mseed

Mini-SEED file plugin

sources.fs_mseed.input_type

  Default: `ddb`

  Type: string

  No description available

sources.fs_mseed.data_format

  Default: `mseed`

  Type: string

  No description available

sources.fs_mseed.location

  Default: `@ROOTDIR@/var/lib/seedlink/indata`

  Type: path

  No description available

sources.fs_mseed.pattern

  Type: string

  "pattern" is a POSIX extended regular expression that must match input file names (useful for filtering out non-data files). For example "BH[NEZ]" would match any files that contained "BHE", "BHN" or "BHZ". If no pattern is specified all files will be processed.

sources.fs_mseed.scan_level

  Default: `2`

  Type: int

  Look for data files at the 1st or 2nd directory level.

sources.fs_mseed.move_files

  Default: `true`

  Type: boolean

  Move file to subdirectory "processed" before starting to read it.

sources.fs_mseed.delete_files

  Default: `false`

  Type: boolean

  Delete processed files.

sources.fs_mseed.use_timestamp

  Default: `false`

  Type: boolean

  Look only for files that are newer than the last file processed.

sources.fs_mseed.timestamp_file

  Default: `@ROOTDIR@/var/run/seedlink/fs_mseed.tim`

  Type: path

  Timestamp file is used to save the modification time of the last file processed.

sources.fs_mseed.polltime

  Default: `10`

  Type: int

  Unit: s

  New files are searched for every "polltime" seconds.

sources.fs_mseed.delay

  Default: `30`

  Type: int

  Unit: s

  Wait until the file is at least n seconds old, before trying to read it.

sources.fs_mseed.verbosity

  Default: `1`

  Type: int

  Tells how many debugging messages are printed.

sources.fs_mseed.zero_sample_limit

  Default: `10`

  Type: int

  Maximum number of consecutive zeros in datastream before data gap will be declared (-1 = disabled).

sources.fs_mseed.default_timing_quality

  Default: `-1`

  Type: int

  If timing quality is not available, use this value as default (-1 = disabled).

sources.fs_mseed.proc

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

Note

sources.fs_mseed.channels.* Channel definitions (Mini-SEED streams are defined in streams.xml, look for <proc name=”generic_3x50”>).

Note

sources.fs_mseed.channels.$name.* $name is a placeholder for the name to be used.

sources.fs_mseed.channels.$name.source_id

  Type: string

  No description available

### gdrt

GDRT (GFZ Displacement Real-Time) is the data format of the Real-time Precise Point Positioning (RTPPP) provided by the Helmholtz Centre Potsdam – GFZ German Research Centre for Geosciences. This development was supported by the German Federal Ministry of Education and Research (BMBF) within the EWRICA project.

The GDRT plugin is a SeedLink plugin that converts GDRT UDP messages to miniSEED channels according to the following table:

Index | Field name | Format | Description | miniSEED channel
--- | --- | --- | --- | ---
1 | Start of message | character(1) | A fixed character ‘>’ |
2 | Station ID | character(4) | GDRT station ID |
3 | Epoch time | integer(4) integer(2) integer(2) integer(2) integer(2) double(%5.2f) | UTC time (year, month, day, hour, minute, second) |
4 | Solution type | integer(2) | 0: Single point positioning (SPP) | LBS
+1: Precise point positioning (PPP)
+2: Precise point positioning ambiguity resolution (PPP-AR)
+4: Precise point positioning regional augmentation (PPP-RA)
5 | Observation type | integer(2) | +1: GPS | LBO
+2: GLONASS
+4: Galileo
+8: BDS
+16: Seismic data
6 | Positioning type | integer(2) | 1: Coordinate fixed solution | LBP
2: Static solution
3: Kinematic solution
4: Dynamic solution
7 | Processing type | integer(2) | 1: Real-time solution | LBT
2: Post-processing solution
8 | Ratio of ambiguity fix | double(%6.2f) | The ratio value of PPP ambiguty fixing (larger value means more reliable ambiguity fixing) | LBR (×100)
9 | Number of satellites | integer(2) integer(2) integer(2) integer(2) | Number of satellites used for the solution (GPS, GLONASS, Galileo, BDS) | LBC (summed)
10 | Coordinate X | double(%14.4f) | Coordinates X, Y, and Z in the Earth Centered Earth Fixed (ECEF) coordinate system in meters | LBX
11 | Coordinate Y | double(%14.4f) | LBY
12 | Coordinate Z | double(%14.4f) | LBZ
13 | Variance of coordinate X | double(%14.4f) | Variance of coordinates (m²) | LB1
14 | Variance of coordinate Y | double(%14.4f) | LB2
15 | Variance of coordinate Z | double(%14.4f) | LB3
16 | Covariance of coordinates X and Y | double(%14.4f) | Covariance of coordinates (m²) | LB4
17 | Covariance of coordinates X and Z | double(%14.4f) | LB5
18 | Covariance of coordinates Y and Z | double(%14.4f) | LB6
19 | Correction information | string(4) | Name of orbit/clock/upd product and name of three used reference stations in PPP-RA, separated with ‘+’ |
20 | End of message | character(1) | A fixed character ‘!’ |

sources.gdrt.station

  Type: string

  GDRT station code.

sources.gdrt.locationCode

  Type: string

  Sensor location code.

sources.gdrt.sampleRate

  Default: `1.0`

  Type: double

  Unit: Hz

  Sample rate in Hz.

sources.gdrt.udpport

  Default: `9999`

  Type: int

  UDP port for receiving GDRT messages. By default port 9999 will be used.

### gmeteo

GFZ meteo protocol (serial plugin)

sources.gmeteo.comport

  Default: `/dev/meteo`

  Type: string

  Serial port.

sources.gmeteo.baudrate

  Default: `19200`

  Type: int

  Baud rate.

sources.gmeteo.proc

  Default: `gmeteo`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### hrd24

Nanometrics HRD24 (serial plugin)

sources.hrd24.comport

  Default: `/dev/data`

  Type: string

  Serial port.

sources.hrd24.baudrate

  Default: `19200`

  Type: int

  Baud rate.

sources.hrd24.bundles

  Default: `59`

  Type: int

  Number of bundles in packet.

sources.hrd24.proc

  Default: `hrd24_100`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### liss

LISS server (TCP/IP)

sources.liss.address

  Default: `"$STATION.$NET.liss.org"`

  Type: string

  Hostname or IP of the LISS server.

sources.liss.port

  Default: `4000`

  Type: int

  Port of the LISS server

### m24

Lennartz M24

sources.m24.comport

  Default: `/dev/data`

  Type: string

  Serial port.

sources.m24.baudrate

  Default: `19200`

  Type: int

  Baud rate.

sources.m24.time_offset

  Default: `0`

  Type: int

  Time offset in usecs.

sources.m24.proc

  Default: `m24_100`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### maram

maRam Weatherstation V1 (serial plugin)

sources.maram.comport

  Default: `/dev/meteo`

  Type: string

  Serial port.

sources.maram.baudrate

  Default: `9600`

  Type: int

  Baud rate.

sources.maram.proc

  Default: `maram`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### minilogger

SEP064 USB Seismometer Interface

sources.minilogger.port_path_hint

  Default: `/dev/ttyACM0`

  Type: string

  Device path and name of port for USB Seismometer Interface. If the specified port cannot be opened or is not a USB Seismometer Interface device, all available ports will be scanned.

sources.minilogger.allow_set_interface_attribs

  Default: `1`

  Type: int

  Allow low-level setting of port interface attributes when available ports are scanned to find a USB Seismometer Interface device, 0=NO, 1=Yes. Setting 1 (=Yes) may help successful detection and correct reading of the USB Seismometer Interface device, particularly for the RasberryPi, but can have adverse effects on other devices, terminals, etc. open on the system.

sources.minilogger.mswrite_header_sample_rate

  Default: `-1`

  Type: double

  Sets a fixed sample rate to report in the miniseed file header. The default (-1) sets an estimated sample rate based on recent packet start times. This estimated sample rate will vary slightly over time, potentially producing errors in some software when reading the miniseed files. See also: nominal_sample_rate

sources.minilogger.mswrite_data_encoding_type

  Default: `STEIM2`

  Type: string

  SEED data encoding type for writing miniseed files. Supported values are: INT16, INT32, STEIM1, STEIM2

sources.minilogger.channel_prefix

  Default: `SH`

  Type: string

  The initial letters to set for the miniseed header ‘channel’, will be prepended to the component.

sources.minilogger.component

  Default: `Z`

  Type: string

  Component of seismogram, one of Z, N or E.

sources.minilogger.do_settings_sep064

  Default: `1`

  Type: int

  Set sample rate and gain on SEP 064 device, 0=NO, 1=Yes.

sources.minilogger.nominal_sample_rate

  Default: `80`

  Type: int

  Nominal sample rate per second, one of 20, 40 or 80.

sources.minilogger.nominal_gain

  Default: `4`

  Type: int

  Nominal gain, one of 1, 2 or 4.

### miscScript

Misceallaneous script

sources.miscScript.script_path

  Type: string

  Script path.

sources.miscScript.script_args

  Type: string

  Script arguments.

sources.miscScript.proc

  Default: `auto`

  Type: string

  Name of the proc object used for channel naming (and eventually down sampling). If this field is left to default (auto), a basic proc (without decimation) will be automatically generated.

sources.miscScript.channels

  Default: `HHZ,HHN,HHE`

  Type: string

  Names of the channels. These names are only used if you choose to automatically generate the proc. Nevertheless, even if you are not using the auto proc, it is important to declare correctly this list as the number of channels is used to size the internal plugin’s buffers. If you do not want seedlink to use one of the channels, replace it names with "none". Example : 01HHZ,none,none,02HHZ,HHE,HHN

sources.miscScript.sample_frequency

  Default: `1`

  Type: string

  Sampling frequency. Must be integer or a fraction of integers.

sources.miscScript.flush_period

  Default: `0`

  Type: int

  This parameter aims at enforcing the sending of seedlink data blocks (512bytes) even if they are not yet full. 0 means no enforcing.

### miscSerial

Miscellaneous ASCII serial Plugin (serial plugin)

sources.miscSerial.comport

  Default: `/dev/data`

  Type: string

  Serial port.

sources.miscSerial.baudrate

  Default: `9600`

  Type: int

  Baud rate.

sources.miscSerial.proc

  Default: `auto`

  Type: string

  Name of the proc object used for channel naming (and eventually down sampling). If this field is left to default (auto), a basic proc (without decimation) will be automatically generated.

sources.miscSerial.channels

  Default: `HHZ,HHN,HHE`

  Type: string

  Names of the channels. These names are only used if you choose to automatically generate the proc. Nevertheless, even if you are not using the auto proc, it is important to declare correctly this list as the number of channels is used to size the internal plugin’s buffers. If you do not want seedlink to use one of the channels, replace it names with "none". Example : 01HHZ,none,none,02HHZ,HHE,HHN

sources.miscSerial.sample_frequency

  Default: `1`

  Type: string

  Sampling frequency. Must be integer or a fraction of integers.

sources.miscSerial.flush_period

  Default: `0`

  Type: int

  This parameter aims at enforcing the sending of seedlink data blocks (512bytes, even if they are not yet full. 0 means no enforcing.

sources.miscSerial.serial_clock_period

  Default: `0`

  Type: int

  If this parameter is not 0, a date frame ("YYYY,mm,dd hh:mm:ss\n") will be send on serial port every serial_clock_period seconds.

### mk6

MK6

sources.mk6.proc

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### mppt

SunSaver MPPT via Modbus TCP/IP

sources.mppt.address

  Default: `localhost`

  Type: string

  Hostname or IP.

sources.mppt.port

  Default: `502`

  Type: int

  TCP port.

sources.mppt.unit_id

  Default: `1`

  Type: int

  Modbus unit identifier.

sources.mppt.channels

  Type: list:string

  List of channels.

sources.mppt.proc

  Default: `mppt`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### mseedfifo

mseedfifo_plugin

### mseedscan

MseedScan transfers new or changed miniSEED files from a directory to a SeedLink server. It recursively a directory structures and continuously checks for file modifications. The files are presumed to be composed of Mini-SEED records of 512 Bytes. As the files are appended or created the plugin will feed the new records to the controlling SeedLink server.

sources.mseedscan.dir

  Type: string

  Directory to scan.

### mws

MWS (serial plugin)

sources.mws.comport

  Default: `/dev/weatherstation`

  Type: string

  Serial port.

sources.mws.baudrate

  Default: `19200`

  Type: int

  Baud rate.

sources.mws.proc

  Default: `mws`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### naqs

NAQS (TCP/IP)

sources.naqs.address

  Default: `localhost`

  Type: string

  Address of server, required.

sources.naqs.port

  Default: `28000`

  Type: int

  Specify the NAQS control/data port.

sources.naqs.proc

  Default: `naqs_bb40_sm100`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### nmxp

NAQS (TCP/IP) with nmxptool. nmxptool is not part of SeisComP and needs to be installed under $INSTALLDIR/share/plugins/seedlink/.

sources.nmxp.address

  Default: `idahub.ucsd.edu`

  Type: string

  Hostname or IP of the NAQS server.

sources.nmxp.port

  Default: `28000`

  Type: int

  TCP port of the NAQS server.

sources.nmxp.max_latency

  Default: `300`

  Type: int

  Max latency in seconds (time to wait for missing packets).

sources.nmxp.short_term_completion

  Default: `-1`

  Type: int

  Short-Term-Completion (default -1).

  -1 is for Raw Stream, no Short-Term-Completion. Packets contain compressed data.

  0 decompressed packets are received in chronological order without waiting for missing packets.

  [1..300] decompressed packets are received in chronological order but waiting for missing packets at most SECs seconds. This requires NaqsServer version greater than 1.90.

sources.nmxp.additional_options

  Type: string

  Defines additional options passed to nmxptool.

sources.nmxp.proc

  Default: `naqs_bb40_sm100`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### optodas

OptoDAS interrogator via ZeroMQ

sources.optodas.address

  Default: `tcp://localhost:3333`

  Type: string

  ZeroMQ address.

sources.optodas.sampleRate

  Default: `100`

  Type: int

  Sample rate.

sources.optodas.gain

  Default: `1.0`

  Type: double

  Gain.

sources.optodas.networkCode

  Default: `XX`

  Type: string

  Network code.

sources.optodas.stationCode

  Default: `{channel:05d}`

  Type: string

  Station code template.

sources.optodas.locationCode

  Type: string

  Location code.

sources.optodas.channelCode

  Default: `HSF`

  Type: string

  Channel code.

sources.optodas.proc

  Default: `auto`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### ps2400_eth

The ps2400_eth plug-in fetches data from a Earth Data PS2400/PS6-24 digitizer (firmware >= 2.23) using TCP/IP. Other configurable parameters are in $SEISCOMP_ROOT/share/templates/seedlink/ps2400_eth/plugins.ini.tpl.

sources.ps2400_eth.address

  Default: `127.0.0.1`

  Type: string

  IP of the Earth Data PS2400/PS6-24 digitizer.

sources.ps2400_eth.port

  Default: `1411`

  Type: int

  Port of the Earth Data PS2400/PS6-24 digitizer.

sources.ps2400_eth.proc

  Default: `ps2400_eth_edata_100`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### q330

Quanterra Q330 (UDP/IP)

sources.q330.address

  Type: string

  Hostname or IP.

sources.q330.port

  Default: `5330`

  Type: int

  Source port to receive data packets.

sources.q330.udpport

  Default: `auto`

  Type: string

  UDP port.

sources.q330.proc

  Type: string

  Name of the proc object uniquely defined in a template file of the q330 plugin e.g. $SEISCOMP_ROOT/share/templates/seedlink/q330/streams_{name}.tpl. proc is used for processing, e.g. renaming or resampling of raw streams (streams submitted by a plugin as raw samples). The template file is used to generate $SEISCOMP_ROOT/var/lib/seedlink/streams.xml .

  Example template: $SEISCOMP_ROOT/share/templates/seedlink/q330/streams_q330_100.tpl

  If proc is not given, the streams are taken as provided by the DAS.

sources.q330.slot

  Default: `1`

  Type: int

  Q330 dataport number (1-4).

sources.q330.serial

  Default: `0x0100000123456789`

  Type: string

  Q330 serial number (with 0x prefix).

sources.q330.auth

  Default: `0x00`

  Type: string

  Q330 auth code (with 0x prefix).

### reftek

RefTek RTPD (TCP/IP)

sources.reftek.address

  Default: `127.0.0.1`

  Type: string

  Hostname or IP of the RTPD server.

sources.reftek.port

  Default: `2543`

  Type: int

  Port of the RTPD server.

sources.reftek.map

  Type: string

  Defines an alternative unit mapping file. The default file is in $INSTALLDIR/var/lib/seedlink/reftek2sl.map. If this path is not an absolute path it will treated as relative path to $INSTALLDIR/var/lib/seedlink. The map file is used if the unit is not explictly given in the binding. Each line in the file is one mapping from a unit to a station name. The first column is the unit id e.g. 91F3 and the second column the Seedlink station name e.g. ABCD.

sources.reftek.unit

  Default: `91F3`

  Type: string

  The unit id.

sources.reftek.proc

  Default: `reftek`

  Type: string

  Name of the proc object uniquely defined in a template file of the reftek plugin e.g. $SEISCOMP_ROOT/share/templates/seedlink/reftek/streams_{name}.tpl. proc is used for processing, e.g. renaming or resampling of raw streams (streams submitted by a plugin as raw samples). The template file is used to generate $SEISCOMP_ROOT/var/lib/seedlink/streams.xml .

  Example template: $SEISCOMP_ROOT/share/templates/seedlink/reftek/streams_reftek.tpl

sources.reftek.timeout

  Default: `60`

  Type: int

  Unit: s

  Timeout length in seconds. If no data is received from a Reftek unit during this period, the plugin assumes that the unit is disconnected.

sources.reftek.default_tq

  Default: `40`

  Type: int

  Default timing quality in percents. This value will be used when no timing quality information is available. Can be -1 to omit the blockette 1001 altogether.

sources.reftek.unlock_tq

  Default: `10`

  Type: int

  Timing quality to use when GPS is out of lock.

sources.reftek.log_soh

  Default: `true`

  Type: boolean

  Send Reftek state-of-health data as Mini-SEED LOG stream.

### sadc

SADC10/18/20/30 (serial plugin)

sources.sadc.comport

  Default: `/dev/data`

  Type: string

  Serial port.

sources.sadc.baudrate

  Default: `38400`

  Type: int

  Baud rate.

sources.sadc.pctime

  Default: `0`

  Type: int

  Use PC time for initial time setting.

sources.sadc.proc

  Default: `sadc_100`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### scream

SCREAM! server (TCP/UDP/IP) plugin that receives data via the SCREAM! protocol and sends raw data to Seedlink. The mapping from SCREAM! channel id’s to Seedlink net.sta.loc.cha is defined in $INSTALLDIR/var/lib/seedlink/config/scream2sl.map if not specified otherwise (parameter ‘map’).

sources.scream.address

  Default: `127.0.0.1`

  Type: string

  IP of the SCREAM! server.

sources.scream.port

  Default: `1567`

  Type: int

  Port of the SCREAM!

sources.scream.tcp

  Default: `false`

  Type: boolean

  Enables TCP/IP mode. By default the data is received via UDP but TCP is used instead. This needs a propert configuration of the SCREAM! server to accept TCP connections.

sources.scream.proc

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

sources.scream.map

  Type: string

  Defines an alternative stream mapping file. The default file is in $INSTALLDIR/var/lib/seedlink/scream2sl.map. If this path is not an absolute path it will treated as relative path to $INSTALLDIR/var/lib/seedlink.

sources.scream.channels

  Type: list:string

  Defines the channel mappings (ID:channel, …) from SCREAM! to the channel code used in streams.xml. If no channel mappings are given, the map file defined in map (either default or custom) is used.

### scream_ring

SCREAM! server plugin that receives data via the SCREAM! protocol and sends raw data to Seedlink. The mapping from SCREAM! channel id’s to Seedlink net.sta.loc.cha is defined in $INSTALLDIR/var/lib/seedlink/config/scream2sl.map if not specified otherwise (parameter ‘map’). This is the second revision of the scream plugin which supports buffering for short-term completeness.

sources.scream_ring.address

  Default: `127.0.0.1`

  Type: string

  IP of the SCREAM! server.

sources.scream_ring.port

  Default: `1567`

  Type: int

  Port of the SCREAM!

sources.scream_ring.tcp

  Default: `false`

  Type: boolean

  Enables TCP/IP mode. By default the data is received via UDP but TCP is used instead. This needs a propert configuration of the SCREAM! server to accept TCP connections.

sources.scream_ring.tcpport

  Default: `1567`

  Type: int

  TCP request port of the SCREAM! for backfill requests

sources.scream_ring.proc

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

sources.scream_ring.rsize

  Default: `1000`

  Type: int

  Size of the stream ringbuffers (small values are useful for RT systems; large values for decreasing gaps).

sources.scream_ring.map

  Type: string

  Defines an alternative stream mapping file. The default file is in $INSTALLDIR/var/lib/seedlink/scream2sl.map. If this path is not an absolute path it will treated as relative path to $INSTALLDIR/var/lib/seedlink.

sources.scream_ring.channels

  Type: list:string

  Defines the channel mappings (ID:channel, …) from SCREAM! to the channel code used in streams.xml. If no channel mappings are given, the map file defined in map (either default or custom) is used.

### vaisala

Vaisala ASCII protocol (serial plugin)

sources.vaisala.comport

  Default: `/dev/weatherstation`

  Type: string

  Serial port.

sources.vaisala.baudrate

  Default: `19200`

  Type: int

  Baud rate.

sources.vaisala.proc

  Default: `vaisala`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### wago

WAGO Controller (T-Elektronik)

sources.wago.address

  Type: string

  Hostname or IP.

sources.wago.port

  Default: `502`

  Type: int

  TCP port.

sources.wago.channels

  Type: list:string

  List of channels.

sources.wago.proc

  Default: `wago`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### wave24

Wave24

sources.wave24.comport

  Default: `/dev/data`

  Type: string

  Serial port.

sources.wave24.baudrate

  Default: `57600`

  Type: int

  Baud rate.

sources.wave24.proc

  Default: `wave24bb`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).

### win

WIN server

sources.win.udpport

  Default: `18000`

  Type: int

  UDP port to receive data packets.

sources.win.map

  Type: string

  Defines an alternative stream mapping file. The default file is in $INSTALLDIR/var/lib/seedlink/win2sl.map. If this path is not an absolute path it will treated as relative path to $INSTALLDIR/var/lib/seedlink.

sources.win.channels

  Type: list:string

  List of channels (hexID:name, …). The name can either be a single channel name or a combination of station and channel separated by a whitespace, e.g. "ABCD BHZ". If no station name is given, e.g. only BHZ is specified, the name of the station the plugin bound to is used. The definition of a station name is important if the plugin configuration is used as a profile and assigned to multiple stations. In this case a mapping file would be the more appropriate solution.

  If no channel mappings are given, the map file defined in map (either default or custom) is used.

sources.win.proc

  Default: `win`

  Type: string

  Name of the proc object (defined in streams.xml); used for processing raw streams (streams submitted by a plugin as raw samples).