16
3.2 Input/Output of AIS Signal
Three input/output ports are provided for RS-422 protocol, based on the IEC
61162-1/2. Data transmission rate is selectable from 4800 bps and 38.4 kbps.
Normally, Radar/ECDIS/PC, etc. are connected to these ports to exchange data
with the AIS. PC standard protocol RS-232C is also provided in the D-sub port of
the transponder unit.
25TD4-A
26TD4-B
27GNDISO
28RD4-A
29RD4-B
30GNDISO
31TD6-A
32TD6-B
33GNDISO
34RD6-A
35RD6-B
36GNDISO
37TD8-A
38TD8-B
39GNDISO
40RD8-A
41RD8-B
42GNDISO
43TD(232C)
44RD(232C)
TB1inthejunctionbox
L/R(INMARSAT)or
ECDIS/RADAR
TTYCS-4
RD-A
TTYCS-4
RD-B
IsolatedGND
TD-A
TD-B
IsolatedGND
EXTRAI/O
TTYCS-4
PCI/O
RD-A
RD-B
IsolatedGND
TD-A
TD-B
IsolatedGND
RD-A
RD-B
IsolatedGND
TD-A
TD-B
IsolatedGND
Rxport
Txport
Note: For TD (232C) and RD (232C), use one twisted pair for TD and one twisted
pair for RD, separately.