Research Concepts RC2500 - Manual (Page 147)

140 RC2500 Antenna Controller Appendix O Replacing the Andrew APC100/ APC 300
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 isolated, axis-specific limit inputs (unused) as well as contact closures for summary faults and
peripheral equipment control. A +5 VDC regulated output (200mA max), a +24 VDC unregulated output
(1 Amp max), and an analog voltage input, all referenced to the RC2500 ground, are also available The
individual pin definitions are shown in the table below. Both J6 and J7 are required when operating with
the LMKDS.
RC2500 Pin #
& (resource #) Description LMKDS Pin #
1 (PC3) Summary Fault dry contact COM, (3A @ 125VAC or 3A
@ 30VDC). Unused
2 (PC3) Summary Fault dry contact NO, (3A @ 125VAC or 3A @
30VDC). Unused
3 (PB1) unused input return No connect
4 (PB0
HSI.1,P2.4) unused input return No connect
5 (PB2) unused input return No connect
6 (PB3) unused input return No connect
7 (PB5) unused input return No connect
8 (PB4) unused input return No connect
9 Drive Common (return path for AZ, EL, & POL drive
command lines) No connect
10 (PC0) PC0 output dry contact NC, (3A @ 125VAC or 3A @
30VDC). dedicated pin, do not use.
11 (P0.2) P0.2 Auxiliary analog/digital input 0 - +5 VDC. Unused
12 Ground (for digital/analog I/O). Unused
13 Ground for system bus voltages. Unused
14 (PC3) Summary Fault dry contact NC, (3A @ 125VAC or 3A @
30VDC). Unused
15 (PB1) unused input No connect
16 (PB0) unused input (same as J7-10) No connect
17 (PB2) unused input No connect
18 (PB3) unused input No connect
19 (PB5) unused input No connect
20 (PB4) unused input No connect
21 (PC1) Azimuth Slow, pull-down drive, 700mA max sink. (0.4V =
AZ move Slow) AZ SLOW TB1-8
22 (PC0) PC0 output dry contact COM, (3A @ 125VAC or 3A @
30VDC). dedicated pin, do not use.
23 (PC0) PC0 output dry contact NO, (3A @ 125VAC or 3A @
30VDC). dedicated pin, do not use.
24 +5 Volts DC digital power, 200mA max. Unused
25 Unregulated +24 VDC bus voltage, 1 Amp max.. Unused
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. You may now continue the RC2500 installation with
sections 3.3.3 through 3.5.