Grounding The Odu - Alcatel-Lucent 9500 MXC User Manual

Attaching the ODU and Flexible Waveguide

Grounding the ODU

3DB 23063 ADAA - Rev 004 July 2007
Before attaching the ODU to the remote mount, fit the flexible waveguide to the
ODU.
1. Remove one gasket from the packet supplied with the flexible waveguide,
apply a thin smear of silicon grease to the gasket, and fit the gasket to the
recess in the flange.
2. Firmly attach the flange to the ODU feed head using the bolts supplied.
3. Fully loosen the nuts on the four ODU mounting bolts, then thread the
waveguide through the center of the mount.
4. Attach the ODU to the mount by inserting the bolts through the receptor holes,
and rotating the ODU clockwise to bring the mounting bolts hard up against
the slot ends.
5. Tighten the four nuts with an open-ended 19 mm (3/4") spanner.
6. Prepare the antenna-end of the flexible waveguide as in step 1 above.
7. Check, and adjust if necessary, the run of the waveguide for best protection
and support position before fastening the flange to the antenna port.
8. Secure the waveguide to prevent wind-flex using hanger assemblies or
similar. If cable ties are used, do not over-tighten.
The ODU must be installed with a lightning surge suppressor. Failure to do so
can invalidate the Alcatel-Lucent warranty. Refer to Installing Lightning Surge
Suppressors on page 2-23.
This procedure applies where the ODU must be directly grounded, as distinct
from being grounded via a suppressor support bracket.
It applies where:
• The ODU is fitted with an internal suppressor. Refer to Installing Lightning
Surge Suppressors on page 2-23.
• The ODU is installed with an external suppressor but without a suppressor
support bracket. In this instance one ground wire is installed to ground the
ODU, and a separate ground wire is installed for the surge suppressor.
• For a procedure to ground the suppressor, refer to Installing a Suppressor
Without a Support Bracket on page 2-37.
• For an ODU installed with a suppressor support bracket, refer to: Installing
a Suppressor With a Support Bracket on page 2-32.
9500 MXC User Manual
Vol. III-2-13