Extension Connection - Panasonic KX-TD308 Installation Manual

2.3.3 Extension Connection

Telephone Wiring
Standard telephones
Digital proprietary telephone
(e.g., KX-T7436, KX-T7235)
Analog proprietary telephone
(e.g., KX-T7030, KX-T7130)
Note
2-12 Installation
Extension jacks 1 through 4 are for all kinds of telephones.
Extension jacks 5 through 8 are only for digital proprietary
telephones. To make extension jacks 5 through 8 usable for all
kinds of telephones, a 4-SLT Extension Expansion Card (KX-
TD30870) must be installed.
The maximum length of the extension line cord (twisted cable)
which connects the system and the extension is as follows:
Standard Telephone
Proprietary Telephone
2 or 4-conductor wiring is required for each extension as listed
below. There are four pins for possible connection: "T", "R", "D1"
and "D2".
T: Tip
R: Ring
Telephone
•
If a KX-TD30870 is installed
Note the jack numbers for the facsimile and standard 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 of the telephone or answering machine to the OFF
position.
Diameter of the line
22AWG
24AWG
26AWG
22AWG
24AWG
26AWG
D1: Low
D2: High
Wiring
1 pair wire (T, R)
D D
1 pair wire ( , ) or
1 2
D D
2 pair wire ( , , T, R) for eXtra Device Port
1 2
D D
2 pair wire ( , , T, R)
1 2
Max. length
1798m (5900 feet)
1128m (3700 feet)
698m (2290 feet)
360m (1180 feet)
229m (750 feet)
140m (460 feet)