2-14 Installation
2.11 Parallelled Telephone Connection
Any single line telephone can be connected in parallel with a proprietary telephone as
follows.

Using a Modular T-Adaptor

2-conductor wiring cord
Connect pins “A” and “B”.
Proprietary Telephone Single Line Telephone
4-conductor wiring cord
For a proprietary telephone:
Connect pins “A”, “B”, “H” and “L”.
Required System Programming
Section 4.2, System Programming
[610] Parallelled Telephone Connection
Feature Reference
Section 3, Features
Parallelled Telephone Connection
PSQX1708ZA-03E.QX 99.10.15 5:46 PM Page 14