User Manual

Fibre Optic Master and Remote Site
User Handbook
Document Number: 60-212701HBK - Issue No. 1 Page 39 of 50
5. INSTALLATION
5.1 General Remarks
When this equipment is initially commissioned, please use the equipment set-up record sheet in
Appendix B. This will help both the installation personnel and AFL should these figures be needed for
future reference or diagnosis.
The equipment racks must be located on a flat, level surface that is made from a material suitable for
bearing the weight of the rack assembly. If the installer is in any doubt about the suitability of a site it
is recommended that he consult with an appropriately qualified Structural Engineer.
It is important in determining the location of the rack within the room that space is allowed for access
to the front and rear of the equipment. To enable maintenance to be carried out, the doors must be
able to fully open.
The location must be served with a duct to allow the entry of cables into the rack.
5.2 Electrical Connections
It is recommended that the electrical mains connection is made by a qualified electrician, who must be
satisfied that the supply will be the correct voltage and of sufficient capacity.
All electrical and RF connections should be completed and checked prior to power being applied for
the first time.
Ensure that connections are kept clean and are fully tightened.
5.3 RF Connections
Care must be taken to ensure that the correct connections are made with particular attention made to
the base station TX/RX ports. In the event that the base transmitter is connected to the RX output of
the equipment, damage to the equipment will be done if the base station transmitter is then keyed.
Ensure that connections are kept clean and are fully tightened.
5.4 Optical Connections
The optical input and output ports will be located on the appropriate shelf as shown in the system
drawings. The ports are supplied with a green plastic cover, which must be removed prior to the
connection of the fibre cable. Ensure that transmitter and receiver fibre cable are identified to prevent
misconnection. At the master site, the fibre transmitters are in the downlink path with the receivers in
the uplink. At the remote sites the fibre transmitters are in the uplink with the receivers in the
downlink.
In the master site 60-212701 both of the RF paths have provision for a second path, the downlink RF
path being split into two and fed to two fibre optic transmitters providing two optical outputs and the
uplink path having two optical inputs each to its own fibre optic receiver, the resulting RF outputs
being combined to produce a single RF output path. The two downlink optical paths are identical so
either may be used, the same applies to the uplink, however the optical ports not in use must be
capped with their green plastic covers.
Always ensure that connections are kept clean and are fully tightened.