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3CC08991ATAA TQ BJA 01
Issue 01 -- March 2004
3.6.3 -- IDU/ODU wiring
The link is provided by a single 50 ohm coaxial cable (for each IDU/ODU link).
For protection against
interference and to ensure that it does not radiate interference (EMC requirements), the cable used is
double-shielded, 11 mm in diameter, with an outer PU sheathing (for UV protection) with a maximum length of
300 meters approved today under the reference 1AC001100022.
The outer sheathing of the cable is marked at approximately 60 cm intervals with the cable reference
1AC001100022. The cable is terminated by male, elbow “N” type connectors, ref: 9400UXI203. The connectors
are watertight, but, for added protection, when connected, preferably wind self--amalgamating tape supplied
with the consumables kit (optional) around the connector.
Instructions for fitting these connectors are given in Appendix 5.
The greatest possible attention should be paid to the wiring of the coaxial plugs and to compliance with the cable
installation rules, such as: minimum bending radius of 80 mm, watertightness, etc. If ordered by the customer,
a cable earthing kit may be supplied; this is for sites where radio frequency interference is high, for example:
radio stations, TV transmitters, etc. Kit ref: 9400UXI204 (see figure 33).
Instructions for the use of the cable earthing kit are supplied with the kit.
In a 1 + 1 configuration, the difference in length between IDU / ODU cables must not exceed 20 metres.
3.6.3.1 -- Fixing the IDU/ODU cable
The coaxial cable is fixed to the pole mounting as rigidly as possible to avoid repetitive movement caused by
mechanical or atmospheric vibrations that might in turn damage the cable or connector.
IDU/ODU cable
correct positioning
Cable ties and
cable tie slots
Opening for the Service kit catch
CABLE FIXING
ODU / IDU CABLE
Cable ties
OR
ODU
9400UX flat ODU
ODU 9400UX flat ODU
ODU / IDU cable
The cable is fixed along the supporting pipe or pole by the normal methods (Colson cable ties are supplied in
the optional consumables kit)
Summary of Contents for 9400 UX
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