Specifications; Connecting The Power/Data Cable - Garmin Sounder GPSMAP 135 Owner's Manual

APPENDIX
SECTION
B
Wiring and

Specifications

86

Connecting the Power/Data Cable

The power/data cable connects the GPSMAP 135 Sounder to a 10-40 volt DC
system and provides interface capabilities for connecting external devices, includ-
ing an external alarm. The color code in the diagram below indicates the appro-
priate harness connections.
PIN 1 (red): 10-40 volts DC
PIN 2 (black): Ground
PIN 3 (blue): NMEA out
4
3
5
2 PIN 4 (brown): NMEA in
6
1
7
PIN 5 (white): No connection
PIN 6 (green): No connection
Pin assignment
(CABLE VIEW)
PIN 7 (yellow): alarm low
The following formats are supported for connection to up to 3 NMEA devices:
• NMEA 0180/NMEA 0182
• NMEA 0183 version 1.5
Approved sentences— GPBWC, GPGLL, GPRMB, GPRMC, GPXTE, GPVTG, GPWPL, GPBOD
Proprietary sentences— PGRMM, PGRMZ (alt.), PSLIB (beacon receiver control
input)
• NMEA 0183 version 2.0
Approved sentences— GPGGA, GPGLL, GPGSA, GPGSV, GPRMB, GPRMC, GPRTE, GPWPL,
GPBOD
Proprietary sentences— PGRME (estimated error), PGRMM (map datum)
PGRMZ (altitude), PSLIB (beacon rec. control input)
(-) (+)
10-40 volts DC
Shield Grounded
Through GPS
Autopilot/
NMEA Device
GBR 21
Beacon
Receiver
(-)
Alarm/
Relay
(+)