Lucent Technologies Definity Enterprise Communication Server 8.2 User Manual

Page of 1707
DEFINITY ECS Release 8.2
Administrator’s Guide  
555-233-506  
Issue 1
April 2000
Managing data calls 
417
PC 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 DEFINITY ECS 
to provide users of IBM-compatible PCs fully-integrated voice and data 
workstation capabilities.
Two groups of different configurations are available for PC Interface: 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 (shown in 
Figure 12
) uses 
the following connections:
The PC Interface card plugs into an expansion slot on the 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.