User's Manual
Table Of Contents
- Installation
- Overview AS4000
- Overview AS4020
- Preparation
- Rack Installation
- AS4000 AC Rack Cabling and Wiring
- AS4000 CT Shelf Cabling and Wiring
- _
- Expansion Rack Cabling
- Setup and Test
- System Testing
- AS4000 AC Setup and Test
- Access Concentrator: Turn-Up and DC measurements
- Setting Up the Access Concentrator
- _
- Setting the TEI and Baud Rate for Netspan Connection
- Creating AC Shelf/Rack on Sitespan
- Setting up AC Rack and Shelf configuration
- Configure AC Cards
- Configure AC Shelf properties
- Check Boot Sequence
- Alarm and Status Indications (Test 3)
- Self Test (Test 4)
- Test CTU cabling to the DDF E1 Cards
- Test CTU cabling to the Distribution Frame (DDF) GR303 Cards.
- Test XTU cabling to the DDF
- Connecting the AC to the Network
- Connect E1s/T1s to the Switch or Cross-Connect at the DDF
- Access Concentrator Rack Commissioning Test Results
- AS4000 CT Setup and Test
- AS4020 CT Setup and Test
- _
- General
- Repair and Return Procedure
- Repair Charges
- Return & Repair Tag
- Packing and Shipment
- Glossary
- Index
Printed Documentation
78
Some Installations may use directional antennas and use two DIP/LNAs for a two shelf
system. in this situation Shelf 1 connects to DIP/LNA 1 and Shelf 2 to DIP/LNA 2. See Hybrid
Rack Modification for Directional Antenna
Two Antenna Installations
In new installations the protective boots of the antenna feeder tails free ends should be kept
in position until the tail is actually connected. Form one of the tails carefully (avoid tight bends,
minimum bend radius is 125mm), to connect with the N-Type sockets on the Coupler on top
of the DIP/LNA module in the Combiner Shelf. If PA2 and the DIP/LNA2 units are fitted the
second antenna should be connected to the DIP/LNA2.
Single Antenna Installations
If modem shelves 3 and 4 are not installed it is possible to install only 1 antenna and connect
the feeder to the output port of DIP/LNA1 Unit.
If the Combiner Shelf is not equipped with DIP/LNA2, it is recommended that the second
antenna should be terminated with a 50ohm termination. The termination can be made either
at the base of the dipole if only one feeder is fitted, or at the base of the second feeder if the
second feeder has been provided in readiness for future shelf expansion.
Card Provision into existing installation
a) Shelf 3 (Top shelf of expansion Rack)
When installing cards into an existing installation the power is already connected to the DA
CT Rack and the cards should be inserted in the order listed below.
Insert the following cards into the Combiner Shelf (located in the DA CT Rack):-
1 RF Power Amplifier module (2 PAs per module) in the right hand position in the
combiner shelf located in the combiner rack.- Note orientation of the PA module.
1 DIP/LNA2 (Terminate output with 50ohm termination.)
1 x PSU’s
1 x RF Card (RF) (Third Slot)
Insert the following cards into the Modem Shelf:-