User Manual

AS4000 Central Terminal
Installation and Commissioning
DLP 007
605-0000-452
Issue 1.3dr Date 7/02/00
Page 1 of 4 © 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.
DA CT Rack
Using the DMM measure and record the Exchange DC voltage supply across the input
terminals ( 1(+) & 2 (-).for Supply 1 and 3(+) & 4 (-).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.
DC SUPPLY
OFF
To
Separate
Exchange
Supplies
- 48V(2)
Batt 1 +
- 48V(1)
Batt 2 +
1 2 3 4
Figure 26. Test Voltage (CT Rack)
Expansion Rack
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.