Installation
MetPak Base Station User Manual
Last Change
©
Gill Instruments Ltd
22 April, 2013
Page 13
Cabling (unused wires)
Any unused wires in the connecting cables should be connected to ground
preferably at the user equipment end.
Cabling protection
The Cable should be secured:
With cable clamps or equivalent at regular intervals such that the hub
box cable gland does not support the cable weight.
Away from the mounting bolts to prevent chaffing of the cable.
NOTE.
Install appropriate strain relief support to the cable. If possible, pass the
cable through the mounting pole.
Earthing
To ensure correct operation and for maximum protection from lightning, a separate
lightning rod system is recommended to protect the system.
You can also earth the MetPak Base Station through its mountings or by
connecting a grounding cable (minimum of 6mm² copper wire) to a spare MetPak
Base Station metalwork bolt hole. Clean off any paint that might prevent a good
connection on the installation.
When you connect the communications cable ensure that the screen has a
connection to the hub box case.
The Junction Box accessory and Heater Power Interface Box have a plastic case,
hence ensure continuity of cable screens into and out of the boxes using the
common earthing terminals provided in the boxes.
Routing Cables through the Hub Box Glands
NOTE
: The MetPak Base Station Hub Box cable glands contain spring loaded
metal leaves that are designed to make a ground contact with cables that have an
overall braid screen. Care is therefore required when inserting and removing
cables through the glands to prevent damage to the metal leaves.
