Instruction manual

Simrad GC80/GC85 Compact Gyro Compass
82 20221511 / C
10.1 ITERM board
TB1
PIN NO NAME DETAILS
1 N+ Master compass power supply (24V DC)
2 N- Master compass power supply (24V DC common)
3 AL1 Master compass inverter alarm (over current)
4 AL2 Master compass inverter alarm (over voltage)
5 ALC Master compass inverter alarm (common)
6 MT+
7 MT-
Control unit – master compass serial signal
8 MR+
9 MR-
Master compass – control unit serial signal
10 MSC Serial signal common
11 ECA+
12 ECA-
Master compass encoder signal (A phase)
13 ECB+
14 ECB-
Master compass encoder signal (B phase)
15 ECC Master compass encoder signal (common)
16 FGND Earth
17 ST11
18 ST12
19 ST13
Step signal (open drain signal)
20 ST14 Step signal (24V DC common)
21 ST15 Step signal (24V DC)
22 Not used
23 ALCN+
24 ALCN-
Alarm contact signal output
25 BZSP+
26 BZSP-
Buzzer stop signal input
27 EACK+
28 EACK-
External acknowledge signal input
29 1TX+
30 1TX-
Serial signal output
31 1TSC Serial signal common
32 1R24- Serial repeater power supply (24V DC common)
33 1R24+ Serial repeater power supply (24V DC)