DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506 Issue 1
April 2000
Managing data calls
417PC Interface
15
■DMI Trunks
If you place a data call from a local analog-data endpoint to a DMI trunk,
you must dial the data-origination access code to obtain a modem. Data
calls on DMI trunks to local analog-data endpoints automatically obtain
modems.
■DS1 Tie Trunk Service
Connect modems used for Modem Pooling to AVD DS1 tie trunks via Data
Terminal Dialing or by dialing the feature-access code for data origination.
PC Interface
The personal computer (PC) Interface consists of the PC/PBX platforms and
PC/ISDN Platform product family. These products are used with DEF INITY ECS
to provide users of IBM-compatible PCs fully-integrated voice and data
workstation capabilities.
Two groups of different configurati ons are a vail able for PC Interf ace: group 1 uses
Digital Communications Protocol (DCP) and group 2 uses the ISDN-BRI (Basic
Rate Interface) protocol.
The group 1 configurations consist of DCP configurations that use a DCP
expansion card) in the PC to link to the switch. Group 1 (sho wn in Figure 12) u ses
the following connections:
■The PC Interface card plugs into an expansion slot on th e PC. The card has
2 standard 8-pin modular jacks (line and phone).
■The digital phone plugs into the phone jack on the PC Interface card.
■The line jack on the card provides a digital port connection to DEFINITY
ECS.
■The distance between the PC Interface card and the PBX should be no
more than 1524m for 24-gauge wire or 1219m for 26-gauge wire.