Jumper Setting Of Ic-305 And 306 - Nera Inmarsat-c Service Manual

4.3 Jumper setting of IC-305 and 306

A maximum of 3 IC-306 unit is connected. The jumper setting of the 16P0213 board is
required for recognition of each IC-305 unit. See table 4.3.1.
The 16P0213 board has two types, type A for the IC-305 unit and type B for the IC-306
unit. Each type is recognized by the jumper setting of JP1 and JP 2 and the presence of
S1, S2 and S3.
A type (IC-305)
DISTRESS
JP1 Short
JP2 Short
S1 Yes
S2 Yes
S3
16P0213A
S1
Fig.4.3.1 IC-305 (Distress Alert Received unit)
RCV-1
Open
Short
No
JP1: short
JP2: short
S2
S3
4.3 Jumper setting of IC-305 and 306
Table 4.3.1 Boards 16P0213A and 16P0213B
B type (IC-306)
RCV-2
Short
Open
No No
No No
Yes Yes
16P0213B
S1
Fig.4.3.2 IC-306 (ALARM unit)
4-11
RCV-3
Open
Open
No
No
Yes
JP1
JP2
S3
S2