Bulk Telecom Cable
Bulk Telecom Cable is unterminated multipair cable for horizontal cabling within telecommunications networks. Choose 4, 6, 10 or 20 pair versions with a low smoke sheath for voice and PBX installations.
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Bulk Telecom Cable is unterminated multipair cable pulled through walls, floors and ceiling voids to carry horizontal voice circuits back to a frame or patch panel. It suits installers wiring PBX extensions, alarm lines and other legacy telecom runs where individual pairs are punched down at each end rather than terminated with a plug.
Choosing a pair count
- 4 Pair and 6 Pair cable suit small extension runs to a single outlet or handset.
- 10 Pair and 20 Pair cable reduce the number of separate runs needed for a bank of outlets fed from one riser.
- All pair counts here use an LSOH sheath, which limits smoke and toxic fumes if the cable is ever exposed to fire.
Terminate the pairs at a voice patch panel or at a telecom outlet, and pick up matching plugs and adaptors from voice adaptors or box connections and connectors. For the wider range see Voice and Telecoms.
Bulk Telecom Cable FAQs
What is Bulk Telecom Cable used for?
It carries analogue and digital voice circuits, such as PBX extensions and telephone lines, from a frame or riser out to outlets. The pairs are unterminated on the reel and punched down at each end during installation.
How do I choose between 4, 6, 10 and 20 pair cable?
Pick the pair count that matches how many separate voice circuits the run needs to carry. A single outlet may only need 4 or 6 pair, while a run feeding several extensions or a patch panel is usually more efficient in 10 or 20 pair.
What does LSOH sheath mean?
LSOH, also written LSZH, stands for low smoke zero halogen. It is a sheath material chosen to limit smoke and toxic fumes if the cable is ever exposed to fire, and is commonly specified for internal telecom runs.