RESEARCH CONCEPTS RC4500 - Auxiliary I;O

RC4500 Antenna Controller Chapter 3 Mechanical & Electrical Installation
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3.1.2.3 Auxiliary I/O
J6 is a 25 pin D-subminiature female receptacle used for Antenna Auxiliary I/O. This port supports
isolated, axis-specific limit inputs as well as contact closures for peripheral equipment control. A +24 VDC
unregulated output (750mA max) referenced to the RC4500 chassis ground, is also available.
Each limit input on connector J6 is rated for 24VDC and draws approximately 5mA @ 24VDC input.
Pin #
1
Description
Relay 1 COM
2 Relay 1 NO
3 Azimuth CW Limit Return
4 Azimuth CCW Limit Return
5 Elevation Down Limit Return
6 Elevation Up Limit Return
7 Polarization CW Limit Return
8 Polarization CCW Limit Return
9 Drive Common (return path, same as J7 pins 2, 5, 8)
10 Relay 0 NC
11 NC
12 NC
13 Ground for system bus voltages
14 Relay 1 NC
15 Azimuth CW Limit input, 24 VDC low current (0V = AZ CW Limit reached)
16 Azimuth CCW Limit input, 24 VDC low current (0V = AZ CCW Limit reached)
17 Elevation Down Limit input, 24 VDC low current (0V = EL Down Limit reached)
18 Elevation Up Limit input, 24 VDC low current (0V = EL Up Limit reached)
19 Polarization CW Limit input, 24 VDC low current (0V = POL CW Limit reached)
20 Polarization CCW Limit input, 24 VDC low current (0V = POL CCW Limit reached)
21 NC
22 Relay 0 COM
23 Relay 0 NO
24 NC
25
Unregulated +24 VDC bus voltage, 750mA max.