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DEFINITY AUDIX System Release 4.0
System Description Pocket Reference
585-300-214
Issue 1
May 1999
Design and Operation
2-5
Hard Disk Drive
■ DCP Mode 1 connections transmit data at 56 Kbps. DCP Mode 1
uses a DS1 facility on the switch or a dedicated facility on a T1
carrier.
■ DCP Mode 3 connections transmit data at 64 Kbps. DCP Mode 3
can use a DS1 facility or an ISDN facility on the switch or a
dedicated facility on a T1 carrier.
Figure 2-2
shows a DCP Mode 1 and DCP Mode 3 Digital Networking
connection.
Figure 2-2. DCP Mode 1 and DCP Mode 3 Connections
Low-speed Digital Networking connections
DCP Mode 2 is a low-speed (9.6 Kbps) Digital Networking connection.
3
DCP Mode 2 requires external hardware to translate digital
transmissions to analog, but it works with most DEFINITY switch
configurations.
3. The DEFINITY AUDIX system uses EIA RS-232 Asynchronous
protocol to communicate with other AUDIX systems in a DCP
Mode 2 connection. Some documentation for Lucent Technologies
voice messaging systems may refer to low-speed Digital
Networking connections as RS-232 connections.
DEFINITY system
cydxsl15 LJK 021999
T1 PRI
*
*
or ISDN for Mode 3
DEFINITY
AUDIX
system
Port on a
DS1 trunk
board
*