RESEARCH CONCEPTS RC4500 - I;O and Limits

RC4500 Antenna Controller Chapter 3 Mechanical & Electrical Installation
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3.3.2.3 I/O and Limits
The I/O and Limits cable is used by the RC4500 to interface with the AIU relay board primarily to produce
drive commands and receive limit switch status. A cable such as Belden 9948 (RCI p/n CBL-25_22) is
used.
Wire Color
Description
Relay Board
Connection
Black
Limit Return
<1>
J6 pin 3
Blue
Polarization CW Limit input, 24 VDC low current
(0V = POL CW Limit reached)
J6 pin 4
Orange
Polarization CCW Limit input, 24 VDC low current
(0V = POL CCW Limit reached)
J6 pin 5
White / Black
Elevation Up Limit input, 24 VDC low current
(0V = EL Up Limit reached)
J6 pin 6
Green
Elevation Down Limit input, 24 VDC low current
(0V = EL Down Limit reached)
J6 pin 7
White
Azimuth CW Limit input, 24 VDC low current
(0V = AZ CW Limit reached)
J6 pin 8
Blue / Black Azimuth CCW Limit input, 24 VDC low current
(0V = AZ CCW Limit reached)
J6 pin 9
Red / White
Elevation Fast command, pull-down drive, 70mA max sink
(1.5V = EL Fast)
J4 pin 1
Red / Black / White
Azimuth Fast command, pull-down drive, 70mA max sink (1.5V
= AZ Fast)
J4 pin 2
Orange / Green
Polarization CW command, pull-down drive, 70mA max sink
(1.5V = move CW)
J4 pin 3
Black / White Polarization CCW command, pull-down drive, 70mA max sink
(1.5V = move CCW)
J4 pin 4
Red / Green
Elevation Up command, pull-down drive, 70mA max sink (1.5V
= move Up)
J4 pin 5
White / Red
Elevation Down command, pull-down drive, 70mA max sink
(1.5V = move Down)
J4 pin 6
Green / Black Azimuth CW command, pull-down drive, 70mA max sink (1.5V
= move CW)
J4 pin 7
Orange / Red
Azimuth CCW command, pull-down drive, 70mA max sink
(1.5V = move CCW)
J4 pin 8
Red / Black
Drive Common (return path for AZ, EL and POL drive command
lines)
J4 pin 9
White / Black / Red
Drive Common (return path for AZ, EL and POL drive command
lines)
J4 pin 10
Green / White Drive Enable command, pull-down drive, 70mA max sink (1.5V
= Drive Enable)
J4 pin 11
Blue / White
Elevation Drive Fault input, 24 VDC low current
(0V = drive fault)
J4 pin 14
Blue / Red
Azimuth Drive Fault input, 24 VDC low current
(0V = drive fault)
J4 pin 15
Orange / Black
Emergency Stop status input, 24 VDC low current (0V =
Emergency STOP)
J19 pin 1
Green / Black / White
Emergency Stop status return
J19 pin 2
Black / White / Red Maintenance status input, 24 VDC low current (0V =
Maintenance – pedestal jogging)
<2>
J19 pin 3
Red
Maintenance status return
J19 pin 4
<1> “Limit Return” is the common return for all EL, AZ and POL limits.