User Manual

AS4000 Central Terminal Installation and
Commissioning
DLP 006
605-0000-432
Issue 1.3a Date 18th October 1999
Page 1 of 4 Copyright Airspan Communications Corporation 1999
AS4000 RELEASE 4: 2Mbit/s CABLING
1. 2Mbit/s Cabling 75Ω Coax
From the site survey, confirm the location of the Digital Distribution Frame (DDF).
The length of 2Mbit/s feeds from the rack to the DDF should not exceed 250 metres
Note: This must be a SELV port of an EN 60950 approved product.
Cable entry
through top of
rack
Cables placed in
channel at the
side of the rack
DSC
Airspan
PSU1 PSU2 PSU3
PA
1
P
A2
Figure 18. AS4000 Release 4 Rack Cable Runs
Run the 2Mbit/s co-axial cables from the modem shelf to the allocated positions on the
DDF. (Two cables per shelf). In partial equipped installations it may be appropriate to
run enough cables to cater for a complete rack of equipment. This reduces the need to
disturb original installation when adding additional equipment.