Extension Module Mdf Connections - Inter-Tel ECX 2000 Installation & Maintenance Manual

Connect the cord to the four-way RJ11 connector on the CCU.
Connect to the PC using either the six-way RJ plug or the cord and DB9 converter as required.
The pinouts from the RS 232 interface of the DB9 to the RJ11 are:

Extension Module MDF Connections

The connections on the Extension module are shown below.
·
Eight RJ11 connectors for the extensions
·
Four RJ11 connectors for the CO lines
·
Two RJ11 power failure connectors
42
DB9 connector RJ11 plug
2 4
3 3
5 1
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