Comtech EF Data RCS11 - Manual (Page 66)

RCS11 1:1 Redundancy Switch Connector Pinouts
MN-RCS11 – Revision 9 5–8
5.5.6 ES/ES (J18) Universal Interface
The Earth Station to Earth Station (ES/ES) is a 9 Pin Female ‘D’ port.
Refer to Table 5-8 for pinouts.
Table 5-8. ES/ES Port - 9-Pin Female ‘D’ Connector (J18)
Pin No. Signal Name Description
1 RXD-B Receive Data B
6 DSR Date Set Ready
2 RXD-A Receive Data A
7 RTS Request to Send (Pin 7 & 8 Tied Together)
3 TXD-A Transmit Data A
8 CTS Clear to Send
4 TXD-B Transmit Data B
9 NC No Connection
5 GROUND Signal Ground
5.5.7 G.703 Balanced (J20)
The G.703 Port is a Balanced 15-Pin Female ‘D’ Connector. Refer to Table 5-9 for pinouts.
Table 5-9. J20 - G.703 (Balanced)(15-Pin Female ‘D’)
Pin # Description Signal
1 Send Data (A) - Input
2, 4 Ground GND
3 Receive Data (A) - Output
5 Drop Data Out (B) + Output
6 Insert Data In (B) +/EXC (B) + Input
7 External Clock (A) - Input
8 External Clock (B) + Input
9 Send Data (B) + Input
10, 14, 15 NC NA
11 Receive Data (B) + Output
12 Drop Data Out (A) - Output
13 Insert Data In (A) -/EXC (A) - Input