Furuno IB-681 Manual De Usuario

12. Attach the rear panel and mount the power supply unit.

13.Connect the four plugs from the connector fixing plate to the RF CONV Board as shown

in Figure 23.

 INMARSAT-B
  MOBILE EARTH STATION 

COMPASS

BEARING

ELEVATION

S LEVEL
TEL 1

TEL 2

TEL 3

TEL 4

TEL 5

TEL 6

TELEX

DATA

AOR-WEST

AOR- EAST

POR

POWER

DIMMER

LOCK

       I OR

READY

TX

FAIL

FELCOM 81

DIMMER

LOCK

DIMMER

LOCK

 

 INMARSAT-B
  MOBILE EARTH STATION 

COMPASS

BEARING

ELEVATION

S LEVEL

TEL 1

TEL 2

TEL 3

TEL 4

TEL 5

TEL 6

TELEX

DATA

AOR-WEST

AOR- EAST

POR

POWER

DIMMER

LOCK

       I OR

READY

TX

FAIL

Connector

RF CONV

assy.

Board

TX IF

J9

RX IF

J7

REF

J8

(DGPS               (J11)
OUT)

RF CONV Board

Figure 23 Communication unit, right side view

14. Attach the cover.

15. Plug in all connectors to the rear panel.

1. Connect the communication unit to the IB-681 with three coaxial cables (TX IF, RX IF,

REF connectors) and one serial cable with 9 pin connector (HSD CTRL connector).

TX IF

RX IF

REF

HSD CTRL

TX IF
RX IF
REF

HSD CTRL

Serial cable (Max. 5 m, 17JE-573-2 harness)

Coaxial cable (Max. 5 m, BNC-P-55UX2)

Ship’s
mains

16S0277

Figure 24 Connection of IB-681 and communication unit

Connect the copper strap (supplied) between
the earth terminal on the IB-681 and ship’s
superstructure.