Alarms (j5), Ibs alarms (j5), Idr alarms (j5) – Comtech EF Data UB-530 User Manual
Page 24: 5 alarms (j5), 1 ibs alarms (j5), 2 idr alarms (j5)
Breakout Panel
Revision 2
Connectors and Switches
MN/UB530.IOM
2–12
2.2.5 Alarms (J5)
The alarms connection is a 25-pin D connector located at the front of the breakout panel.
The alarms interface is used to provide FORM C contact closures for the purpose of alarm
reporting. FORM C contacts ratings are:
• 1A at 24 VDC
• 500 mA at 120 VAC
A connection between the Common (C) and the Normally Open (NO) contacts indicates no
fault. The alarms interface will operate either in an IBS or an IDR mode, depending on the
configuration switch settings on the rear panel (see Section 2.1).
2.2.5.1
IBS Alarms (J5)
Signal Function
Name
Pin #
Ground GND
14
Primary alarm
PRI–C
5
PRI–NO
18
PRI–NC
6
Secondary alarm
SEC–C
19
SEC–NO
7
SEC–NC
20
2.2.5.2
IDR Alarms (J5)
Signal Function
Name
Pin #
Ground GND
14
Backward alarm 1 output
BWO1–C
2
BWO1–NO
15
BWO1–NC
3
Backward alarm 2 output
BWO2–C
16
BWO2–NO
4
BWO2–NC
17
Backward alarm 3 output
BWO3–C
5
BWO3–NO
18
BWO3–NC
6
Backward alarm 4 output
BWO4–C
19
BWO4–NO
7
BWO4–NC
20
Demodulator fault
DF–COM
8
DF–NO
21
Deferred maintenance alarm
DMA
9
Backward alarm 1 input
BWI–1
22
Backward alarm 2 input
BWI–2
10
Backward alarm 3 input
BWI–3
23
Backward alarm 4 input
BWI–4
11