Lucent Technologies 60V Small Broadband Power System J85500Q-1
5 - 6 Installation
Issue 4 October 1998
secure the unit.) Verify that the fan operates on the
rectifier.
3. After the rectifier is seated, verify that the yellow Standby
LED lights on the rectifier.
4. Turn the rectifier on using the On/Standby switch. Verify
that the yellow Standby LED extinguishes and the green
On LED lights on the rectifier.
5. Verify that the LEDs on the ACU portion of the BPS, with
the exception of the PMJ, MJF and the Battery Connect
LEDs, extinguish after the rectifier switch is in the On
position.
6. Disconnect the thermal probe cables at the connector plug
(P15 and P16) on the BPS before adjusting the plant
voltage.
7. Plug a digital multimeter (DMM) into the V
batt
test jacks
on the ACU.
8. Verify that the plant voltage is 81.72 ± 0.7 using the V
adj
potentiometer located on the ACU.
9. Reconnect the thermal probe cables at the connector plug
on the BPS.
10. Test the thermal management feature using the procedure
in steps 11 and 12. Perform this procedure for all probes.
11. Locate the exposed pins on the rear of a thermal probe.
Short these pins. Verify that the” Probe Fail” LED lights
and the PMJ LED lights on the ACU. Remove the short.
12. Unplug the cable from the thermal probe. Verify that the
“Probe Fail” LED and the PMN LED light on the ACU.
13. Replace the thermal probes.
14. Replace the BPS faceplate.
Output Wiring
1. Verify that the output circuit breakers are in the off
position.
