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User Manual 15
1.3 Adding Another Telephone in Parallel
A Panasonic Proprietary Telephone and a Single Line Telephone, including a facsimile, cordless
telephone, etc., can be connected to one extension jack in parallel. There are two types of parallel
connections.
• Parallelled Telephone Connection
Any Proprietary Telephone and a Single Line Telephone
These telephones share the same extension number. Follow Method 1 or 2.
To ring the Single Line Telephone, set to ring (on) if necessary. (Please refer to "2.7.13 Setting
the Parallel Connected Telephone Ringer (Parallelled Telephone Connection).")
• EXtra Device Port (XDP)
Digital Proprietary Telephone and a Single Line Telephone
Each telephone has a different extension number and can work individually. For more information,
contact your dealer. Follow Method 2 or 3.
Method 1
Modular T-Adaptor
(Panasonic KX-J66 or USOC RJA2X)
2-conductor wiring cord
Connect pins "T" and "R."
Proprietary Telephone (PT)
Single Line Telephone (SLT)
4-conductor wiring cord
For a Digital Proprietary Telephone:
Connect pins "D1" and "D2" only.
("T" and "R" are not required.)
For an Analogue Proprietary Telephone:
Connect pins "T," "R," "D1" and "D2."
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