To Choose The Hardware - AT&T OneVision DEFINITY G3 Guide Installation And Connection Manual

Planning Connectivity

To Choose the Hardware

To Choose the Hardware

Introduction
Before you choose your data communication hardware, consider
these site-specific issues:
Type of The following table lists the types of data communications
hardware hardware that you need for connecting to a network. It also lists
distance and equipment requirements.
Network
Public
Private
5-8 Issue 2 April 1996
Whether or not you want to make connections through the
public network
Distance requirements
Cost factors
Hardware
Any
supported
modem
7400B data
module
ADU
Distance Hardware
from PBX requirements
unlimited Modem pooling on
the DEFINITY G3
PBX
Within A port on a digital
5000 feet board (TN754 in the
U.S.A.)
Within A port on a dataline
2000 feet board (TN726E in
the U.S.A.)
(An ADU is less
expensive than the
7400 B data
module.)