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Wiring to Inmarsat-C 1 or Inmarsat-C 2 (mini-C)
40710
Alarm Panel mini-C
Inm-C Designation Comment
D-sub 9 way J302
1,2 GND GND
3,7 Data + Data +
4,5 Data - Data -
8,9 VCC IN +9V
Cable type: min. 2 x 2 x 0.2mm2 screened.
Length: Max 250m
Twis ted pair
Note 1: The cable shield must be connected to chassis on the Inmarsat-C equipment and
must be left disconnected at the Alarm Panel.”
Note 2: If the cable ends at the Alarm Panel, then connect a strap between pin 6 and 7 in
order to activate an internal termination resistor.
Note 3: For further details refer to TT-3000E mini-C GMDSS system Installation manual
(Doc. TT98-122414)
Note 4: Connection of a classic Inmarsat-C transceiver (TT-3020C) to the Alarm Panel
requires interface TT-3687A installed. For details refer to TT-3687A Alarm Panel
adapter Installation & User manual (Doc. TT98-125903)
0736
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