Furuno FS-1570 Service Manual page 44

R20: LINE IN ADJ.
(REMOTE PORT)
24V IN
Terminal
COUPLER: #1-#8
RCV BZ: #9-#16
EXT BK: #17-#21
IEC-61162: #22-#26
DMC: #27-#32
Fig.2.4.11 T-IF (05P0731) board, FS-1570/2570
REMOTE
(MODEM and RT program update port)
CONTROLLER-2
(Connected to No.2 FS-2570C)
Note: No.1 FS-2570C has high priority .
(The system power is turned on/off only by No.1 control unit.)
2-19
2.4 Boards in Transceiver Unit
R40: LINE OUT ADJ.
(REMOTE PORT)
CONTROLLER-1
(Connected to No.1 FS-2570C)
S1: PTT CHK
(Not used)