Connectorizing qr, 320 solid shielded cable – CommScope Drop Cable User Manual

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Connectorizing QR

320 Solid Shielded Cable

QR 320 cables have a solid aluminum shield instead of a braid/foil shield combination. The dielectric needs to

be cored out by the use of special tools. While the process is described below, you may wish to contact

CommScope Digital Broadband Resource Center (866-333-3272) for more information.

A QR 320 coring tool, a file, a center conductor cleaning tool, wrenches sized for the connectors (adjustable

wrenches are fine) and cable cutters are required. A hi-torque, low-speed drill or a ratchet are optional, but will

speed the process. Wearing safety glasses and gloves is recommended.

Prepare the cable by using the cable cutters to trim the cable to a smooth, round end.

Remove the proper amount of shield and dielectric with the QR 320 coring tool. Slide the cable into

the tool until it stops. With slight forward pressure, twist the coring tool (either by hand or mechanically with the

ratchet or drill) so that the blade begins to strip and core the cable. Continue to turn the coring tool until it spins

freely - the tool has a preset stop that requires no adjustment. Clean the dielectric and shield residue from the

tool.

Clean the center conductor by using a non-metallic cleaning tool. Score the coating on the center conduc-

tor at the shield and scrape it toward the end of the conductor. The conductor is clean if the copper is bright and

shiny. DO NOT USE A KNIFE or other metal tool as it may damage the copper cladding.

Remove the correct amount of jacket with the QR 320 jacket removing tool. Slide the cable into the tool

until the cable stops. Turn the tool clockwise to strip the jacket. Continue turning until it spins freely - the tool has

a preset stop that requires no adjustment.Remove any MigraHeal

compound that may be on the shield.

Slide the shrink tubing over the cable end, then attach the connector according to the

manufacturer’s instructions. Place and shrink the boot. NOTE: IF YOU ARE USING A HEAT-SHRINK BOOT

(WHICH IS HIGHLY RECOMMENDED), APPLY THE FLAME CAREFULLY. Overuse of the torch may melt the

jacket and dielectric.

Residential Interior Cabling 9.10

320 Connectorization