Panasonic KX-TA624 Extension Connection, Telephone Wiring, Proprietary Telephone

2.3.4Extension Connection

Extension jacks 01 – 08 are for all kinds of telephones.

Telephone Wiring

The maximum length of the extension line cord (twisted cable) which connects the system and the extension is as follows.

	Diameter
	of the line	Max. length
Single Line Telephone	22 AWG	1798 m {5900 feet}
(Station Loop Limit:	24 AWG	1128 m {3700 feet}
600 Ω including set)	26 AWG	698 m {2290 feet}
Proprietary Telephone	22 AWG	360 m {1180 feet}
(Station Loop Limit:	24 AWG	229 m {750 feet}
40 Ω )	26 AWG	140 m {460 feet}

2 or 4-conductor wiring is required for each extension as listed below. There are four pins possible for connection: “T” (Tip), “R” (Ring), “L” (Low) and “H” (High).

Telephone	Wiring
Single line telephone	1 pair wire (T, R)
Proprietary telephone	2 pair wire (L, H, T, R)
(e.g., KX-T7030, KX-T7130)

Note • If a KX-TA62493 is installed;

Note the jack numbers for the facsimile and single line telephone which have Caller ID service.

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

Connection

Insert the modular plugs of the telephone line cords (2 or 4- conductor wiring) into the modular jacks on the system.

View of TEL Jack (Extension)

H: High

T: Tip

R: Ring

L: Low

H TR L

To extensions (JACK 01–08)

2-12 Installation