Receive Data (J8); Alarm Outputs (Tb1) - Comtech EF Data SDM-309B Installation And Operation Manual

M&C and Interfaces

4.2.1.9.8 Receive Data (J8)

This connector is the interface for the unbalanced Receive Data input. To activate this
connector SW3 must be in the UNBAL position. If the balanced Send Data input is to be
used, SW3 must be in the BAL position. Switch 3 is located on the front panel to the
right of the receive data input.

4.2.1.9.9 Alarm Outputs (TB1)

The alarm outputs are provided on a 8 position terminal block located on the front panel
of the breakout panel.
GROUND
PRIMARY ALARM
SECONDARY ALARM
4-4–22
Signal Function
GND
PRI_COM
PRI_NO
PRI_NC
SEC_COM
SEC_NO
SEC_NC
Name Pin Number
1, 5
2
3
4
66
7
8
SDM-309B Satellite Modem
MN/U-SDM309B Rev. #