Lucent Technologies Definity Audix System Digital Networking Guide

DEFINITY AUDIX System Digital Networking  585-300-534  Issue 2
May 1999
DCP Mode 3 — 64 Kbps 
3-3 DEFINITY AUDIX Requirements for DCP Mode 3 
3
DEFINITY AUDIX Requirements for 
DCP Mode 3
Eac h DEFINITY AUDIX system must b e running  R3.2 or later software.
Switch (or Customer) Requirements 
for DCP Mode 3
Switc h req uirements d ep end  on whether the systems are serving the same 
switc h or are serving  d ifferent switc hes. The DEFINITY AUDIX system c an b e 
c o-loc ated  on the same G3r switc h with...

DEFINITY AUDIX System Digital Networking  585-300-534  Issue 2
May 1999
DCP Mode 3 — 64 Kbps 
3-4 Switch Administration Requirements for DCP Mode 3 
3
Switch Administration Requirements 
for DCP Mode 3
For remote c onnec tions, the DS1 fac ility c onnec ting  the two systems is translated  
on the switc h as a trunk group  (DS1 c ommon c arrier) with an ac c ess c ode.
Data Rates for DCP Mode 3
This arrang ement op erates at sp eed s of 64 Kb p s.
The following fig ure shows Page 1 of the remote Mac hine...

DEFINITY AUDIX System Digital Networking  585-300-534  Issue 2
May 1999
DCP Mode 3 — 64 Kbps 
3-5 Data Rates for DCP Mode 3 
3
The following fig ure shows Page 2 of the remote Mac hine Profile sc reen for 
c alling  a remote system using  a d ata rate of 64 Kb p s.
Figure 3-3. Machine Profile Screen for Remote System 64 Kbps Call, page 2 

DEFINITY AUDIX System Digital Networking  585-300-534  Issue 2
May 1999
DCP Mode 3 — 64 Kbps 
3-6 Data Rates for DCP Mode 3 
3 

DCP Mode 2 — 9600 or 19,200 bps 
4-1 Considerations 
4
DEFINITY AUDIX System Digital Networking  585-300-534  Issue 2
May 1999
4
DCP Mode 2 — 9600 or 19,200 bps
This c hapter d esc rib es Dig ital Communic ations Protoc ol (DCP) Mod e 2. DCP 
Mod e 2 is an async hronous, low-sp eed  (9600 or 19,200 b p s) c onnec tion. Use 
this typ e of network c onnec tion only when the systems to be networked  are in 
d ifferent loc ations and  require some type of interloc ation fac ility to c ommunic ate. 
The...

DEFINITY AUDIX System Digital Networking  585-300-534  Issue 2
May 1999
DCP Mode 2 — 9600 or 19,200 bps 
4-2 DCP Mode 2 Connections 
4
DCP Mode 2 Connections
The following fig ure shows two DEFINITY AUDIX systems with a DCP Mode 2 
d ig ital networking  c onnec tion. 
Figure 4-1. DCP Mode 2 Connection (Modem/Data Module Arrangement)
The switc h p orts shown in the above d rawing  need  the following  c irc uit p ac ks:
nEIA port – TN726
nDCP p ort – TN754
nAnalog  p ort – TN742 or TN746B
DEFINITY...

DEFINITY AUDIX System Digital Networking  585-300-534  Issue 2
May 1999
DCP Mode 2 — 9600 or 19,200 bps 
4-3 DCP Mode 2 Connections 
4
The following fig ure shows a DCP Mod e 2 c onnec tion to pub lic /p rivate 
interloc ation fac ilities with the following  network c onnec tions:
A. throug h a switc h mod em pool to an AUDIX R1 system 
B. throug h a sing le mod em to an AUDIX R1 or an Intuity AUDIX system
Figure 4-2. DCP Mode 2 Connection to AUDIX R1 and Intuity AUDIX
DEFINITY
AUDIX
Analog
port Analog...

DEFINITY AUDIX System Digital Networking  585-300-534  Issue 2
May 1999
DCP Mode 2 — 9600 or 19,200 bps 
4-4 DEFINITY AUDIX Modem/Data Module Arrangements 
4
DEFINITY AUDIX Modem/Data 
Module Arrangements
DEFINITY AUDIX DCP Mod e 2 uses one of the following  typ es of mod em/d ata 
mod ule arrang ements (this arrang ement is d ifferent than AUDIX R1 stand -alone 
modem pooling):
nDCP port (TN754), 7400A data module, modem, and analog port as 
shown in the following  fig ure.
Figure 4-3. DCP Port and...

DEFINITY AUDIX System Digital Networking  585-300-534  Issue 2
May 1999
DCP Mode 2 — 9600 or 19,200 bps 
4-5 DEFINITY AUDIX Modem/Data Module Arrangements 
4
nElec tronic  Ind ustries Assoc iation (EIA) p ort, async hronous d ata unit 
(ADU), mod em, and analog  p ort as shown in the following  fig ure.
Figure 4-4. EIA Port and ADU with Modem
In the ab ove fig ure, the ADU is attac hed  to a Parad yne Comsphere mod em using  
a null mod em c ab le. 
DCP Mode 2 Hardware
The following hard ware c an be...

DEFINITY AUDIX System Digital Networking  585-300-534  Issue 2
May 1999
DCP Mode 2 — 9600 or 19,200 bps 
4-6 DEFINITY AUDIX Modem/Data Module Arrangements 
4
Refer to Fi g u re  8 -1, 7400A Data Mod ule in a DCP Mod e 2 Mod em/Data Mod ule 
Arrang ement, and  Fi g u re  8 -2, ADU in a DCP Mode 2 Mod em/Data Module 
Arrang ement for c onnec tivity d iagrams.
In selec ting  mod ems or d ata mod ules for mod em p ooling , it is imp ortant to note 
that onc e a sp ec ific  mod el is c hosen for use on one...