The cable is designed to handle low frequency signals for short-range applications and is intended to be terminated in Insulation Displacement Connectors (IDC), but may be soldered or wrapped.
There are three modes of construction; Layer for general use, including two cables for installation in customer’s premises where a good appearance is required. Unit, of 20 pairs, including a 1.38mm diameter insulated earth conductor, for use with customer distribution schemes. Unit, of 16 pairs, for use with the binary number system. Unit, of 30 pairs, for use with Pulse Code Modulation (PCM) systems.
Number Pairs Conductor Diameter (mm) Minimum Radial Insulation (mm) Maximum Insulated Diameter (mm) Unit Size/ Make-up Minimum Sheath Radial (mm) Maximum Overall Diameter (mm) Resistance @ 20°C (ohms/km) Capacitance Unbalance (pF/500m)
Plain annealed solid copper wire, PVC insulated twisted pair or triple, LSZH sheath. An optional collective screen of aluminium coated polyester is available on request.
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