User Manual

AS4000 Operations and Maintenance
Section
605-0000-431
6
. Issue 1.6. Date3/2/99
DLP-014
Page 15 of 60 © Copyright Airspan Communications Corporation 1999
b) Connect the AC Mains supply cable to the AC PSU and power up the unit at
the mains supply outlet socket.
c) On the Sitespan , select the Analogue/RF card window to set the Receiver Gain
control voltage in the RF Gain Adjust box. Click on the UP or DOWN buttons
to set the gain control voltage to 1.4 Volts.
8. Program the Test ST with the correct code of the first Modem circuit to be tested.
Program the Test CRU with the correct code of the Modem circuit to be tested. The
I & C document for the Subscriber Terminal, describes in detail the procedure to be
followed for programming the Subscriber Terminal. (Type 2 PSU).
9. At the end of the programming sequence, allow the Test CRU to acquire an RF link.
The RF link has acquired when the Red, RF Link Fail LED is extinguished on the
respective modem under test and the small amber LED’s on the modem board are
on.
10. Take the test phone off hook to achieve correct power levels.
It is not possible to maintain off hook conditions due to the system timing the
phones out so the off hook condition must be simulated using the Sitespan as
follows:
a) Connect the Sitespan to the modem shelf and configure the database.
b) Select the Analogue card view, reduce in size and move to the corner of
the screen so that the receiver gain adjustment may be manipulated
c) Open Subscriber View from the View option.
d) Ensure that the subscriber database is created for the installed Modems.