Panasonic KX-TEM824, KX-TES824 installation manual Telephone Wiring

2.5 Connecting Extensions

Telephone	Wiring
SLT	1-pair wire (T, R)
PT (such as KX-T7735)	2-pair wire (T, R, H, L)
DSS Console	1-pair wire (H, L)

Note

If a telephone or answering machine with an A-A1 relay is connected to the PBX, set the A-A1 relay switch on the telephone or answering machine to the "OFF" position.

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Installation Manual