Furuno gr-80 Manuales De Servicio

Pin arrangement on the DATA connector is
shown below. For connection at the GPS
navigator, see its manual.

1

TXD

Output data

2

NC

No connection

3

RXD

Input data

4

NC

No connection

5

RX-H

* Nav Data
   (current loop)

6

RX-C

* Nav Data
  (current loop)

7

FG

Ground

1

TXD(+)

Output data (H)

2

TXD(-)

Output data (C)

3

RXD(+)

Input data (H)

4

RXD(-)

Input data (C)

5

RX-H

* Nav Data
   (current loop)

6

RX-C

* Nav Data
   (current loop)

7

FG

Ground

Connect a ground wire between the ground
terminal at the rear of the receiver and a suit-
able ground point.

The interface format can be RS-232C or RS-
422 and the default format is RS-422. For
RS-232C, do the following:

1. Disconnect cables at the rear of the re-

ceiver.

2. Unscrews eight screws to remove the re-

ceiver.

3. Disconnect cables connected to the front

panel.

4. Remove printed circuit board from rear

of the receiver.

5. On the MAIN Board (08P3192), unplug

the connector plugged into J3 (RS-422)
and plug it into J4 (RS-232C).

RS-232C

RS-422

J4

J3

6. Reassemble the receiver.