External Switches; Srm Button - Weatherdock Easy TRX2S serie Handbuch

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Based on the cable assignment (under position 1 and 2 in the
spreadsheet) the green and white cable of the 6-pole cable are
necessary.
Please connect the cable to the plotter ground, the white cable
„contains" the AIS data. This white cable has to be connected to the
NMEA data input of the chart plotter. If the plotter interface is
configured to 38400 baud and the plotter is ready for AIS data,
received data will be shown immediately.

19.5 External switches

It is possible to connect external switches to all easyTRX2S devices.
Moreover you have the opportunity to connect an external buzzer for
the integrated AIS S.A.R.T. and CPA alert.

19.5.1 SRM button

According to the cable assignment under 3.9.1(Pos. 7 and Pos. 8 in the
spreadsheet), the green and white cable of the 4-pole cable are
destined for this functionality. If you connect these cables with a push
button (not a SWITCH) of your switchboard and close together the
cables with the button, a SRM (Safety related message) is sent by the
device.
The preset SRM message which is transmitted is called:
PAN PAN PAN. Subsequently the SRM LED starts flashing for one
minute . When this LED stops flashing you may send another SRM
message at the push of the button. (As a consequence more frequent
transmission than one SRM per minute is not possible which
corresponds to international AIS regulations. Please do not connect a
switch with the cables. A permanently connected switch does not lead
to a transmission every minute. Our transceivers verify a „real" push of
a button to trigger a SRM transmission.)
If you want to use this function in an easy way, you can purchase the
easyCPA³ (A056) as accessory. It is a small box which includes a button
for PAN PAN and a switch for switching to "silent mode" or "anchor
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