Installation Instructions Part 1

51 Chapter 4: Cables and connections
SeaTalk / Alarm output cables
The following cable is used to connect the SeaTalk / Alarm output:
4.10 NMEA 0183 connections
The GPM400 processor has 2 NMEA 0183 connectors.
Dual speed: 38.4 or 4.8 Kbps as required.
These may be used for connection of NMEA compliant devices for
data such as:
• Fastheading, from an autopilot or fastheading sensor.
This is required for Radar target acquisition (MARPA). See
page 52 and your separate autopilot instructions.
• AIS information (for radar target identification).
See page 53 and your separate AIS receiver instructions.
• Other NMEA data (such as 3rd party GPS or autopilot sys-
tems).
For other NMEA device connections refer to the separate man-
ufacturers instructions.
Multiple NMEA devices
You may connect NMEA devices to any GPM400 including the
master GPM. You should only connect 1 device of any particular
type to the G-Series system (including any connected databus or
networked electronics).
For example: Your system should have GPS connected to one
place only. Duplicated GPS data will produce erratic behavior
within the system.
Connection /
Cable
Part No Notes
Alarm / SeaTalk
1.5 m (4.9 ft)
SeaTalk/Alarm Out
cable
E55054 Supplied with GPM400
processor.
See
Appendix C for other cables and accessories.
GPM 400
D10193-1
Green
-ve
IN
White
+ve
IN
Yellow
+ve
OUT
Brown
-ve
OUT
Screen
(not
connected)
NMEA DEVICE
-ve
OUT
+ve
OUT
+ve
IN
-ve
IN