9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007 Vol. III-2-29
suppressor.
3. Connect the suppressor to the indoor radio unit (RAC or 9500 MXC
Terminal) using a jumper cable. Refer to Jumper Cables on page 2-23.
4. Fit one end of the ground wire to the suppressor ground bracket using the nuts
and washers supplied.
5. Trim the other end of the ground wire so there is a little slack in the wire when
it is connected to the ground bar. Connection can be made using the Harger
ground clamp from the suppressor installation kit, or by direct bolting, in
which case fit a crimp lug.
6. For an external ground bar, apply copper-based protective grease around the
nut/bolt/lug of the ground-bar end of the ground wire.
7. If the suppressor is located outside the building, connectors must be
weatherproofed. Refer to Weatherproofing on page 2-38. After
weatherproofing, apply copper-based protective grease around the nut/bolt/
lug of the suppressor end of the ground wire.
Suppressor Installation at the ODU
This topic introduces procedures for installing an external lightning surge
suppressor at the ODU.
Use the suppressor support bracket in all situations except where it would result
in an unacceptable looping of the ODU cable back towards the tower, or other
antenna support structure. However, excessive looping can almost always be
avoided by fitting a right-angle connector between the suppressor and ODU
cable.
New Universal Suppressor Support Bracket
A new ‘universal’ suppressor support bracket has now replaced the current
bracket, which enables both vertical and horizontal positioning of the suppressor
to further assist placement of the ODU cable. See Figure 2-20 and Figure 2-21.
• The vertical option locates the suppressor in the same way as the existing
support bracket.
• The horizontal option locates the suppressor with its Type N connector on the
same axis as the ODU connector.
• Their installation and weatherproofing procedures are directly similar to the
following procedure for the current support bracket.
For ease of installation the suppressor can be attached to the ODU and
weatherproofed (fully or partly) before the ODU (with or without its antenna) is
hoisted into place. This is applicable where the suppressor is installed with its
support bracket.
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