User's Manual

VOLUME III, CHAPTER 2, ODU INSTALLATION
Procedure
Fit the lugged end of the ground wire to the N-female end of the ULA (end with
'flats' on the thread) and securely fasten using the star washer and nut supplied.
Trim the ODU cable to length, fit an N male connector, and attach to the ground-
wire end of the ULA.
Trim the ULA ground wire so there is just a little slack in the wire when connected to
the master ground bar or external ground bar. Fit the crimp lug supplied and firmly
bolt to the ground bar. (Where possible connect to the external entryway ground bar
- surge-related grounds should go directly to the external ground bar).
Install a jumper cable from the ULA to the indoor radio unit.
Note:
1. At sites where the arrestor cannot be located adjacent to building entry, the
arrestor ground wire must be returned directly to the master ground bar - it
must not be connected to the rack ground or similar.
2. For an external ground bar ground connection, apply copper-based
protective grease around the nut/bolt/lug of the ground-bar end of the
ground wire.
3. If the arrestor is located outside the building, connectors must be
weatherproofed. Refer to Weatherproofing on page 69. After weatherproofing,
apply copper-based protective grease around the nut/bolt/lug of the arrestor
end of the ground wire.
Arrestor Installation at the ODU
This procedure applies to the ODU 600 where an external arrestor is to be installed.
ULA Installation Procedure
1. Install ULA onto ODU N-type female connector. ULA model must be Type-N
male to Type-N female.
2. Fit ODU cable to the ULA.
o
The ODU cable should be run in a downward direction from the ULA to the
tower.
o
Ensure the ODU cable is supported within 0.6m (2 ft.) of the ULA. The
cable must be run so as to not stress the mechanical interface of the ULA to
the ODU connector. If necessary (to provide easier ODU cable running)
install an additional Type-N 90 degree adaptor to the ULA.
3. Complete required weatherproofing. See Weatherproofing on page 69.
68 AVIAT NETWORKS