Navsight Solution
– Hardware Manual
NAVSIGHTHM.1.4
5.8.2. PORT B, C and D interfaces
PORT B, C and D share all the common specifications with other serial interfaces. They can be used as
general purpose data input/output. They operate in both RS-232 or RS-422 and include Sync In pin as well
as +12V output for signal translation purpose.
5.8.2.1. Connector specifications (rugged)
The PORT B, C and D connectors use an 8 ways female ODU connector (ref G81F1C-P08LFG00000). Other
manufacturers such as Fischer provide compatible plugs (Fischer Core Series). The connector mates with
plug ref S31F1C-P08MFG0-5500.
Connector's pin out is the following:
Pin #
Name
Description
SHIELD
SHIELD
Connected to the mechanical ground
1
NC
Not internally connected
2
SGND
Signal ground
3
TX+
RS-422 Tx+
4
TX- / TX
RS-422 Tx- / RS-232 Tx
5
RX+ / RX
RS-422 Rx+ / RS-232 Rx
6
RX-
RS-422 Rx-
7
SYNC IN #
Synchronization input B, C, or D
8
+12V
+12V power supply output – may be used for signal adaptation circuitry
5.8.2.2. Connector specifications (rack)
On the Rack version, the PORT B, C, D are accessible through a standard male DB-9 plug.
Pin #
Name
Description
SHIELD
SHIELD
Connected to the mechanical ground
1
SYNC_IN_#
Synchronization input B or C or D
2
RX+ / RX
RS-422 Rx+ / RS-232 Rx
3
TX- / TX
RS-422 Tx- / RS-232 Tx
5
SGND
Signal ground
6
RX-
RS-422 Rx-
7
TX+
RS-422 Tx+
41/73
Figure 5.12: External plug
Figure 5.11: Receptacle front panel view
