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9
Installation
Connecting
GBR and GPS
Figure 3: Sample Wiring to GARMIN GPS Units
GBR 23
8-35 VDC
(5) WHITE: REMOTE ON/OFF*
(1) RED:
8-35 VDC
(2) BLACK: GROUND
Switch
Power/Data Cable
Remote Power Switch
7
6
1
2
4
3
5
Closed- ON
Open- OFF
(-) (+)
Fuse
2-6A
GBR 23
8-35 VDC
(7) YELLOW
:
NOT USED
(6) GREEN: NOT USED
(5) WHITE: REMOTE ON/OFF*
UNITS WITH
18 PIN PLUG
GBR 23
8-35 VDC
UNITS WITH 4 PIN,
RECTANGLE PLUG
(1) RED:
8-35 VDC
(2) BLACK: GROUND
(4) BROWN: DATA IN
(15) RED: POWER INPUT
(18) BLACK: GROUND
(3) BLUE: DATA OUT
(17) BLUE: DATA OUT
(16) BROWN: DATA IN
(11) YELLOW: ALARM
(1-10,12-14) NOT USED
(2) GREEN: DATA IN
(3) WHITE: DATA OUT
(4) BLACK: GROUND
1
23
4
1
2
6
3
7
11
12
15
16
18
(Not used)
(7) YELLOW
:
NOT USED
(6) GREEN: NOT USED
(5) WHITE: REMOTE ON/OFF*
(1) RED:
8-35 VDC
(2) BLACK: GROUND
(4) BROWN: DATA IN
(3) BLUE: DATA OUT
when power is applied/removed to pins 1 & 2. To remotely control power to
* When the black and white wires are combined, the GBR 23 will turn on/off
the GBR 23, see Figure 2.
Power / Data Cable
Power / Data Cable
Power / Data Cable
Data Cable
(-) (+)
(-) (+)
Fuse
2-6A
Fuse
2-6A
Figure 2: Wiring a Remote Power Switch For the GBR 23
Auto-Tuning
Without external commands, the GBR 23 will
automatically scan frequencies between 283.5-325.0 kHz
@ 0.5kHz steps for 100 and 200 bps stations only. To use
25 & 50 bps, you will need to manually tune the beacon
via the GPS receiver or other source. For non-GARMIN
receivers which do not supply a valid tuning interface (pg.
11-12) to the GBR 23, it is not necessary to connect to the
DATA IN (BROWN) wire of the GBR 23. The GBR 23
should tune into a DGPS station within about 10 minutes.
The unit will store the last used frequency in non-volatile
memory and default to that frequency on next use. If you
lose DGPS signal, the unit will attempt to reconnect to the
last frequency and if necessary, tune to another station.
GBR 23 Manual.p65 5/23/00, 1:28 PM9