Alarm Relay; Note; Table 3-7 Alarm Relay - Westell Technologies PS71090-P8 User Manual

DL HPA FAIL
[√]
UL HPA FAIL
[√]
DC OVER
[√]
CURRENT (UL)

3.7 Alarm Relay

Shutdown Signal
Normally Open
Normally Closed
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 )
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DL HPA FAIL
X
(Alarm2)
UL HPA FAIL
X
(Alarm2)
UL Input pow er too
Strong
X
(Alarm2)

Table 3-7 Alarm Relay

NOTE

PS71090-P8 Product Manual
O Solid OFF
O Solid OFF
O Solid OFF
Relay Status
NO (pin 2) + CC (pin 3)
NC (pin 1) + CC (pin 3)
March 2018; Doc No. CS14000802UM rA
March 2018, Rev A
Relay Status: RED
Manual Amp: RED
Solid
DL HPA FAIL: RED
Rest: GREEN
Relay Status: RED
Manual Amp: RED
Solid
UL HPA FAIL: RED
Rest: GREEN
Relay Status: RED
Manual Amp: RED
Solid
UL HPA FAIL: RED
Rest: GREEN
Note
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
)
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