User's Manual

64/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 01
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– where a cable connects to the lightning arrester,
– where a cable connects to the X-Pol RBS Tx or X-Pol RBS Rx jumper cable.
Cables may be marked for identification at additional points along their lengths, however, always leave
a space of at least 1 meter (3.28 ft) between groups of identification bands on the same cable.
To mark an IF cable for identification
1. Use Table 22 to calculate the correct number and color of bands to be applied to the IF cable.
2. Apply the bands of electrical tape to the cable as follows:
1. Cut the tape used for each band to a length that is sufficient to wrap around the cable at least
three times.
2. Create bands by wrapping strips of tape around the cable, leaving a space equal to the width of
the tape between bands. See Figure 32.
3. Apply a cable tie securely around the center of each band to prevent the band from falling off the
cable. See Figure 32.
4. If a white band (indicating redundancy) is required, add it on either side of the colored bands.
The white band must be spaced and secured in the same way as the colored bands.
Figure 32 – Applying bands of tape
2.8.3 – Cable strain relief
Strain relief is required for every cable connected to an X-Pol RBS Tx, X-Pol RBS Rx or 2:1 Combiner/
Splitter. Strain relief protects the connectors on these devices from the potentially damaging stresses
that occur when connected cables are subject to the forces of wind or accidental tugging. Strain relief
can be provided by fastening the IF or RS-422 cables firmly to the mounting pole with plastic ties or cable
hangers.
Caution - Plastic ties that are used as strain relief must be suitable for outdoor use in the
year-round climate experienced at the installation site (UV exposure and temperature
extremes). Select a plastic tie that is rated to survive until a scheduled maintenance time, and
ensure that cable ties are replaced according to that schedule.
Alternately, strain relief can be provided by cable hangers available from the manufacturer
of the IF cable used at the installation.
Cable ties
Strips of electrical tape
IF cable
Spaces between each strip of tape
(width of one strip of tape)