User Manual

AS4000 Access Concentrator
Installation and Commissioning
DLP 007
605-0000-453
Issue 1.2dr Date 7/02/00
Page 6 of 14
7. Select Com port and unique TEI identifier to communicate with the AC shelf.
8. Set the reference clock source to the DTU connected to the CTU in the AC rack from
where the clock source is derived. This is usually Slot 5 E1-1 for 75ohm Backhaul or
Slot 5 E1-5 for 120ohm Backhaul. Enter the RF card type, Frequency and PN Code
and set the TX gain to 3300 and the RX gain to 2200 ( these are nominal values and
are fine tuned when the RX sensitivity is set)
3. Assign Central terminal Card Slots
3.1. DTU Card
1. Highlight shelf, click right mouse button, click ‘element view’, and select ‘Airspan DA
CT Modem Shelf’