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BF Apartment Station 1 Way System

PD-167 Issue 1C Installation and Operating Manual Page 11 of 44

Cable Specification.

All system wiring must be carried out using Cat5 signal cable and where necessary 1mm²

(or greater) power cable as tabulated below. Cat5 cable has a known performance for the

transmission of video signals, whilst telephone or alarm cables are not suitable.

Bell System will be unable to offer any warranty or support for systems installed

using incorrect cables.

Cat5 Cable Specification

Cat5 is our short reference for EIA standard UTP Category 5 Unshielded Twisted Pair data

cable. This is a standard solid core twisted pair cable having 4 pairs (8-cores) and no

shield. The cores are in pairs where Blue and ‘Blue with a White stripe’ are twisted

together as the first pair. The other three pairs are similar with main colours Orange,

Green and Brown.

 Also available and acceptable are:

UTP Category 5e (Cat5e)

UTP Category 6 (CAT6)

UTP Category 6e (CAT6e)

The exact cable can be chosen from the above on cost and availability grounds.

 STP (Shielded Twisted Pair) cables are not recommended.

 UTP “patch cables” are not recommended.

NOTE: Cat5 cable is easily identifiable as the specification is printed on the sheath

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