PS71090-P8 Product Manual
March 2018, Rev A
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©2017 Westell Technologies
March 2018; Doc No. CS14000802UM rA
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Page 23 of 52
DL HPA FAIL
[
√
]
DL HPA FAIL
(Alarm2)
X
O
Solid
OFF
Solid
Relay Status: RED
Manual Amp: RED
DL HPA FAIL: RED
Rest: GREEN
UL HPA FAIL
[
√
]
UL HPA FAIL
(Alarm2)
X
O
Solid
OFF
Solid
Relay Status: RED
Manual Amp: RED
UL HPA FAIL: RED
Rest: GREEN
DC OVER
CURRENT (UL)
[
√
]
UL Input pow er too
Strong
(Alarm2)
X
O
Solid
OFF
Solid
Relay Status: RED
Manual Amp: RED
UL HPA FAIL: RED
Rest: GREEN
3.7 Alarm Relay
Table 3-7 Alarm Relay
Shutdown Signal
Relay Status
Note
Normally Open
NO (pin 2) + CC (pin 3)
PIN 1 NC, PIN 2
NO, PIN 3 CC
PIN 4 NC, PIN 5
NO, PIN 6 CC
PIN 7 NC, PIN 8
NO, PIN 9 CC
Normally Closed
NC (pin 1) + CC (pin 3)
NOTE
Either method in Table 3-7 would trigger the following alarms: Antenna
Malfunction, PA Failure and Power Failure.
ALARM 1 : System component failure, and/or loss of power
– AC/DC (Pin 1,2,3)
ALARM 2 : Active PA System failure / PA system failure (Pin 4,5,6)
ALARM 3 : Antenna failure
– Donor and Server VSWR Alarm (Pin7,8,9
)
(See Appendix C for VSWR Alarm Tim ing Diagram )
