Comtech EF Data RCS20 - Manual (Page 109)

RCS20 M:N Redundancy Switch Revision 15
Electrical Interfaces MN-RCS20 and CD-RCS20
5–9
Pin No. Signal Name Signal Direction
2 Relay +6 Volts VCC_RELAY Output
3 Serial Control Data 2 DDS_LDAT2 Bidirectional
4 Ground GND ---
5 Ground GND ---
6 Logic +5 Volts VCC Output
7 Relay +6 Volts VCC_RELAY Output
8 Relay +6 Volts VCC_RELAY Output
9 Ground GND ---
10 Ground GND ---
11 Relay +6 Volts VCC_RELAY Output
12 Serial Control Data 1 DDS_LDAT1 Bidirectional
13 Ground GND ---
14 Serial Control Data 3 DDS_LDAT3 Bidirectional
15 DDS20 Interrupt INT Input
5.3 DDS20 Universal Modem Data Switch
5.3.1 DDS20 – Universal Switch Front Panel Interface
Figure 5-7 DDS20 Universal Switch – Front Panel Data Switch Modules