Auxiliary i/o connection – Research Concepts RC2500 User Manual
Page 25
18
RC2500 Antenna Controller
Chapter 3
Installation/Setup
Research Concepts, Inc. • 5420 Martindale Road • Shawnee, Kansas • 66218-9680 • USA
www.researchconcepts.com
Auxiliary I/O Connection
J6, located directly above J7, is the Auxiliary I/O connector. This port, based on a DB-25 receptacle,
supports a single isolated input, contact closures for summary faults and peripheral equipment control as
well as two open collector relay drivers similar to those found in J7. The INTEST, INTEST Return and
Power Supply Common connections of J6 are duplicated here for convenience. A +24 VDC unregulated
output (1 Amp max) referenced to the RC2500 ground is also available. The individual pin definitions are
shown in the table below.
Pin #
Description
1
Summary Fault dry contact COM, (3A @ 125VAC or 3A @ 30VDC).
2
Summary Fault dry contact NO, (3A @ 125VAC or 3A @ 30VDC).
3
PC0 dry contact COM, (3A @ 125VAC or 3A @ 30VDC).
4
PC0 dry contact NC, (3A @ 125VAC or 3A @ 30VDC).
5
PC0 dry contact NO, (3A @ 125VAC or 3A @ 30VDC).
6
Unregulated +24 VDC bus voltage, 1 Amp max.
7
Unregulated +24 VDC bus voltage, 1 Amp max.
8
Aux. Relay Drive 1, open collector relay driver, 700mA sink, (0.4V = Relay On)
9
Aux. Relay Drive 2, open collector relay driver, 700mA sink, (0.4V = Relay On)
10
INTEST (see J7 pin 10), 24VDC high current from A.I.U.
11
INTEST (see J7 pin 10), 24VDC high current from A.I.U.
12
INTEST Return (see J7 pin 23), 24VDC high current dry contact closure
13
INTEST Return (see J7 pin 23), 24VDC high current dry contact closure
14
Summary Fault dry contact NC, (3A @ 125VAC or 3A @ 30VDC).
15
Unregulated +24 VDC return, (RC2500 ground)
16
Unregulated +24 VDC return, (RC2500 ground)
17
Unregulated +24 VDC return, (RC2500 ground)
18
Unregulated +24 VDC return, (RC2500 ground)
19
Unregulated +24 VDC return, (RC2500 ground)
20
Unregulated +24 VDC return, (RC2500 ground)
21
Unregulated +24 VDC return, (RC2500 ground)
22
Auxiliary Input 1, 24VDC low current.
23
Auxiliary Input 1 Return, 24VDC low current.
24
Power Supply Common, (Referenced to the A.I.U. Loop Supply)
25
Power Supply Common, (Referenced to the A.I.U. Loop Supply)
Once the above connections have been made, verify that antenna motion in the appropriate direction can
be affected from the front panel in MANUAL mode.