Comtech EF Data CRS-150 - Manual (Page 37)

CRS-150 1:1 Redundancy Switch Revision 2
Connector Pinouts MN/CRS150.IOM
3–11
3.3.2.2 Audio A and B Connectors, DB-9F
The 9-pin ‘D’ Type female (DB-9F) Audio A and B connectors are used for the
two 32 kbps ADPCM audio inputs and outputs (600
Ω transformer coupled,
balanced signals). These can be used for both ESC voice circuits in IDR mode, or
as the primary data (FAST option).
Audio A and B Connectors (DB-9F)
Pin # Signal Function Direction
1 Tx Audio 1 (+) Out
6 Tx Audio 1 (-) Out
2 Rx Audio 1 (+) In
7 Rx Audio 1 (-) In
8 Tx Audio 2 (+) Out
4 Tx Audio 2 (-) Out
9 Rx Audio 2 (+) In
5 Rx Audio 2 (-) In
3 Common