Installation Manual - Panasonic

2.5 Connecting ExtensionsMaximum Cabling Distance of Extension Wiring (Twisted Cable)CableMax. Distanceø 0.4 mm: 140 mø 0.5 mm: 229 mø 0.65 mm: 360 mCAT 5:229 mPT and DSSConsoleCableMax. Distanceø 0.4 mm: 698 mø 0.5 mm: 1128 mø 0.65 mm: 1798 mCAT 5:1128 mSLT2- or 4-conductor wiring is required for each extension as listed below. There are 4 pins that can beused for connection: "T" (Tip), "R" (Ring), "H" (High) and "L" (Low).NoteTelephoneSLT 1-pair wire (T, R)WiringPT (such as KX-T7735) 2-pair wire (T, R, H, L)DSS Console 1-pair wire (H, L)If a telephone or answering machine with an A-A1 relay is connected to the PBX, set the A-A1relay switch on the telephone or answering machine to the "OFF" position.50 Installation Manual