DIR911T User Guide
87
Time Sync Input / Console Connector
A single DB-9 type connector on the rear panel is used to for the time synchronization
port, for the console port, and for the external failure alarm indication. These signal
levels use standard RS-232 signal levels. The pin diagram for this connector is shown in
Figure #73 and the pin description is shown in Table #20.
1
6
5
9
Figure 73: Rear Panel Time Sync/Console DB-9 Connector Pin Diagram
Pin Description
1 Time Sync Pulse Per Second Input
2 Time Sync Receive Input
3 Time Sync Transmit Output
4 +5V @ 250mA Fused Power
5 Ground
6 No Connect
7 Console Transmit Output
8 Console Receive Input
9 System Alarm Output
Table 20: Rear Panel Time Sync/Console DB-9 Connector Pin Description
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