Comtech EF Data RSU-503 - Manual (Page 52)

RSU-503 Redundancy Switch Unit Maintenance
Rev. 8 4–7
4.5.2 M&C Switch CMD and Indicators (J18)
This connector is a 37-pin female D connector with the following pinouts:
Pin # Name Function
1 Terminal Power Output, 10V power for the KP-10
20 Spare
2 UL IF IND COM Tied to signal ground
21 DL IF IND COM Tied to signal ground
3 UL RF IND COM Tied to signal ground
22 DL RF IND COM Tied to signal ground
4 Spare
23 UL IF A IND 0V = Indicates uplink IF connected to unit A
5 UL IF B IND 0V = Indicates uplink IF connected to unit B
24 Spare
6 UL RF A IND 0V = Indicates uplink RF connected to unit A
25 UL RF B IND 0V = Indicates uplink RF connected to unit B
7 Spare
26 DL IF A IND 0V = Indicates downlink IF connected to unit A
8 DL IF B IND 0V = Indicates downlink IF connected to unit B
27 Spare
9 DL RF A IND 0V = Indicates downlink RF connected to unit A
28 DL RF B IND 0V = Indicates downlink RF connected to unit B
10 Spare
29 Spare
11 Spare
30 UL IF A CMD +28V pulse, commands UL IF switch to unit A
12 UL RF A CMD +28V pulse, commands UL RF switch to unit A
31 Spare
13 UL IF B CMD +28V pulse, commands UL IF switch to unit B
32 UL RF B CMD +28V pulse, commands UL RF switch to unit B
14 Spare
33 DL IF A CMD +28V pulse, commands DL IF switch to A
15 DL RF A CMD +28V pulse, commands DL RF switch to unit A
34 Spare
16 DL IF B CMD +28V pulse, commands DL IF switch to unit B
35 DL RF B CMD +28V pulse, commands DL RF switch to unit B
17 Spare
36 UL IF CMD COM Tied to signal ground
18 UL RF CMD COM Tied to signal ground
37 DL IF CMD COM Tied to signal ground
19 DL RF CMD COM Tied to signal ground