Avaya Canada Corporation NTMQ75AA Manual De Usuario
26 / Picocell 1900 Antenna System Installation
Method 12-0152
September 4, 1998
Draft
Procedure 5 – Preparing the Heliax cable:
1.
Straighten at least 10" of the working end of the cable. Trim 1" off this
end of the cable with the fine tooth hacksaw to provide a fresh working
edge.
end of the cable with the fine tooth hacksaw to provide a fresh working
edge.
Note: Crimping the cable, even slightly, is not acceptable.
2.
Use a sharp knife and remove some of the jacket to expose the outer
conductor. See Figure 12 for the amount of jacket to be removed. Avoid
cutting the outer conductor. Remove any burrs on the outside edge of
the outer conductor and clean with solvent.
conductor. See Figure 12 for the amount of jacket to be removed. Avoid
cutting the outer conductor. Remove any burrs on the outside edge of
the outer conductor and clean with solvent.
3.
Lightly grease the O ring/gasket and the inner surface of the clamping
nut with silicone. Be careful to apply the silicone only to the desired
areas.
nut with silicone. Be careful to apply the silicone only to the desired
areas.
Note: When putting the gasket on, slide the smooth end of the gasket
over the conductor first, being careful not to rip it on the conductor
and ensure it is fitted evenly on the conductor.
and ensure it is fitted evenly on the conductor.
4.
Screw on the clamping nut: Hand thread the clamping nut onto the outer
conductor, then use a wrench to tighten it into place.
conductor, then use a wrench to tighten it into place.
5.
Trim the outer conductor so that only the desired amount is left showing
(see Table 5). Use a hacksaw or jewelers saw to cut through the outer
conductor. Use a guide to ensure a straight cut, because it is important
that the cut be parallel to the edge of the clamping nut. Pull the excess
off with a pair of pliers.
(see Table 5). Use a hacksaw or jewelers saw to cut through the outer
conductor. Use a guide to ensure a straight cut, because it is important
that the cut be parallel to the edge of the clamping nut. Pull the excess
off with a pair of pliers.
6.
Cut the inner conductor: Use a hacksaw or jewelers saw to cut the inner
conductor to the desired length (see Table 5). Deburr the cut end with a
file.
conductor to the desired length (see Table 5). Deburr the cut end with a
file.
Note: Hack-saw blades coated with paint are not to be used to avoid
contaminating the conductor surface with paint impurities.
7.
Clean the foam: Use a small brush to clean all the dirt and metallic
particles off the foam. The particles and dirt interfere with the signal
traveling through the cable.
particles off the foam. The particles and dirt interfere with the signal
traveling through the cable.
8.
Separate foam from the outer conductor: (This is not necessary in the 1/
4" cable/connector assemblies) Gently separate the foam from the outer
conductor. Insert the tip of a knife between the foam and the outer
conductor to a depth of 1/16" and separate them so that the outer
conductor can be flared. Scrape away any foam clinging to the outer
conductor and remove any burrs from the inside edge. Use a small brush
to clean the foam again, if necessary.
4" cable/connector assemblies) Gently separate the foam from the outer
conductor. Insert the tip of a knife between the foam and the outer
conductor to a depth of 1/16" and separate them so that the outer
conductor can be flared. Scrape away any foam clinging to the outer
conductor and remove any burrs from the inside edge. Use a small brush
to clean the foam again, if necessary.
9.
Flare the outer conductor: The 1/4" cable/connector assemblies, FSJ1-
50A/41PW and ETS1-50T/41PW, require the outer conductor to be
50A/41PW and ETS1-50T/41PW, require the outer conductor to be