RC4500 Antenna Controller Chapter 3 Mechanical & Electrical Installation
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3.1.2.6 AGC
J2 is a 9 pin D subminiature female receptacle that connects to receivers, modems, etc., to provide signal
strength indication for tracking. J2 also provides +5 VDC and +24 VDC bus voltages.
Pin #
1
Description
Signal Lock input (2.6 to 5.4 VDC Logic High, 0.0 to 1.1 VDC Logic Low)
2 NC
3 NC
4 NC
5 Shield (Ground)
6 +5 VDC, 125mA max
7 AGC Return (Ground)
8 AGC Signal Strength input (+/- 10 VDC)
9 Unregulated +24 VDC, 1A max
10 Ground
11 NC
12 NC
13 NC
14 NC
15 NC
The received signal strength from the system receiver must be between -10 VDC and +10 VDC. The
signal may be of either positive or negative polarity.
A shielded pair, such as Alpha 1292C, should be used to minimize external noise pickup on the signal
strength line. The shield should be connected at the RC4500 system ground and open circuited at the
receiver.
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