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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
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