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Issue 2 April 1996 5-13
Planning Connectivity
To Choose Circuit Packs
To Choose Circuit Packs
Introduction Before you can connect your communications hardware to the
PBX, you must choose the appropriate circuit pack.
Line type The line type of the circuit pack depends on whether you use a
modem, a data module, or an ADU.
The following table matches the data communication hardware
and the line type.
* The TN numbers for circuit packs are for use in the United
States. International users must check the DEFINITY G3
Application Notes for the correct circuit pack.
Hardware Line type Circuit pack*
Any supported modem analog TN746
TN742
7400B data module digital TN754
ADU data TN726B