User Manual

AS4000 Central Terminal Installation and

Commissioning

DLP 005

605-0000-432

Issue 1.3a Date 18th October 1999

Page 1 of 4 Copyright Airspan Communications Corporation 1999

AS4000 RELEASE 3: 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.

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.

Feed the cables through the top of the rack , out through the hole in the right hand side

of the top shelf and down the front of the rack.

Fit Ferrites to each cable at the point of entry to the shelf. Secure a tie wrap each side

of the ferrite to keep it in place. See Figure 15.

Identify and label each cable at both ends as well as the DDF positions.

Terminate all cables with the appropriate Co-ax connector. (BNC for 2002 or Type 43

for 3002 cable).