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2.6 Connection of Extensions
80 Installation Manual
2.6.2 Parallel Connection of the Extensions
With APT
Any SLT can be connected in parallel with an APT as follows:
With DPT
Any SLT can be connected in parallel with a DPT as follows:
Notes
• In addition to an SLT, an answering machine, a fax machine or a modem (PC) can be
connected in parallel with APTs and DPTs.
• If the eXtra Device Port (XDP) mode is enabled through system programming, parallel
connection is not possible. Refer to "1.10.9 Parallelled Telephone" and "2.1.1
Extension Port Configuration" in the Feature Guide for further information.
To a hybrid
extension port
4-conductor wiring cord
Connect pins "T", "R", "D1",
and "D2".
2-conductor wiring cord
Connect pins "T" and "R".
SLTAPT
Modular
T-Adaptor
To a hybrid
extension port
SLTDPT
Modular
T-Adaptor
4-conductor wiring cord
Connect pins "D1" and
"D2".
2-conductor wiring cord
Connect pins "T" and "R".