NEC NEC-80570 User Guide - Page 53

Specifications Cabling Requirements 1. Do not run station cable parallel with the AC source, telex or computer, etc. If the cables are near cable runs to those devices, use shielded cable with grounded shields or install the cable in conduit. 2. When cables must be run on the floor, use cable protectors. 3. Cable runs for key telephones, single line telephones, Door Boxes and 2-OPX Modules must be a dedicated, isolated cable pair. Device Cable Type Cable Run (ft) Notes Key Telephone 2-wire 26 AWG 2-wire 24 AWG 650 1000 Single Line Telephone 2-wire 26 AWG 2-wire 24 AWG 2-wire 22 AWG 8,000 12,000 16,000 at constant 20 mA at constant 20 mA at constant 20 mA Analog Door Box 2-wire 24 AWG 330 2-wire 22 AWG 550 2-OPX Module 2-wire 24 AWG 1000 6 DS1000 Hardware Manual Section 6: Specifications and Parts x 6-5