Settings Inside The Transceiver Unit - Furuno FM-8900S Installation Manual

4.7

Settings Inside the Transceiver Unit

Various jumper blocks are provided inside the transceiver unit to customize the system according
to local regulations, user requirements, specifications, etc.
4.7.1 MIC type, MULTI SIO port receive format type, alarm output
Turn the transceiver unit upside down. Remove the cover to show the MAIN board (05P0843). Set
the jumper blocks as required, referring to the illustration below. Jumper block information is also
printed on the label on the inside cover.
= DEFAULT
J16 EXT_ALM_H/C
1
NORMALLY CLOSED
2
NORMALLY OPEN
3
J18 J17
1
RS-422
2
IEC 61162-1
3
MULTI_RD_A/B
1 2 3
J15 MIC TYPE
(Analog wing
handset)
J15: Set the type of analog wing handset MIC used, carbon or dynamic.
J16: Define alarm output, normally closed or normally open.
J17, J18: Select the type of receiving circuit to use on the MULTI SIO port, RS-422 or IEC 61162-
1 (Opt-Coupler). Set both jumpers to the same setting.
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4. INITIAL SETTINGS