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3. INPUT/OUTPUT SIGNAL
3.1 Inputs from Sensors
There are three input ports (SENSOR 1, 2 and 3) which are based on the IEC
61162-1/2. The protocol is RS422. If there is no HDT signal from a gyrocompass,
connect the gyrocompass signal (Synchro or step signal) to the “AD-10 IN” port
(D-sub 9 pins) of the transponder unit via the FURUNO A/D Converter AD-100 (See
page 16).
1 TD3-A
2 TD3-B
3 GND ISO
4 RD3-A
5 RD3-B
6 GND ISO
7 TD2-A
8 TD2-B
9 GND ISO
10 RD2-A
11 RD2-B
12 GND ISO
13 TD1-A
14 TD1-B
15 GND ISO
16 RD1-A
17 RD1-B
18 GND ISO
19 TD5-A
20 TD5-B
21 GND
22 RD5-A
23 RD5-B
24 GND
TB1 in the junction box
GPS navigator only
TTYCS-1Q
Isolated GND
Heading Signal (HDT)
TTYCS-1Q
Isolated GND
Speed Signal (SOG)
TTYCS-1Q
Isolated GND
TTYCS-1Q
GND 0V
DGPS
Beacon
Receiver
SENSOR 3 (EXT GPS IN)
SENSOR 2
SENSOR 1
(4 cores twisted)