User Manual

AS4000 Access Concentrator
Installation and Commissioning
DLP 006
605-0000-453
Issue 1.2dr Date 7/02/00
Page 1 of 2 © Copyright Airspan Communications Corporation 2000
TURN-UP AND DC MEASUREMENTS
STEP PROCEDURE
1. Rack Turn-Up and Measuring Input Voltage(Test 1a)
This section describes the procedure for measuring and connecting DC to the rack,
checking that the cards have the correct alarm indications on power-up and measuring
the PSU output voltages.
Unscrew retaining screws on the face of the Fuse and Alarm Panel. Hinge forward the
panel and using the DMM measure and record the Exchange DC voltage supply across
the input terminals (TB1(-); TB2+;.for Supply 1 and TB4(-); TB5(+) for supply 2).
Ensure that the voltage measured complies with the site nominal voltage and is within
the limits specified on the test results sheet.
TB1 TB2
TB3
TB4 TB5
P1 P2 P3 P4 P5
Top 2 3 4 5
Batt -ve
(0)
Batt Pos
(0)
Chassis
Batt -ve
(1)
Batt Pos
(1)
Figure 16. Test Voltage (Expansion Rack)
Record the measured voltage on the test results sheet.
2. Switching on the rack. (Test 1b)
Switch the AC Shelves ON by placing both breakers up for each shelf and wait for the
system to complete the power-up self test sequence successfully. The two breakers
duplicate power to each shelf and the shelves will still function if one power supply
fails though the LED indicators on the power supplies will not be on.