Lucent Technologies DEFINITY Communications System Generic 2.2 And Generic 3 V2 DS1/CEPT1/ISDN PRI Reference Manual

DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
About This Document 
Page xi  
nGeneral Information
This inc lud es DS1 and  CEPT1 c onc ep ts having  relevanc e to field  
p ersonnel. For examp le, it is imp ortant for some field  p ersonnel to 
und erstand  the meaning  of B8ZS line c od ing  in ad d ition to knowing  that 
this op tion exists on the DS1 c irc uit p ac k ad ministration form.
nDesign Details
This inc lud es d...

DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
About This Document 
Page xii  
The following  d oc uments should  b e used  in c onjunc tion with this d oc ument to 
c omp ose a c omp lete referenc e for d ig ital trunks on the DEFINITY systems:
nAT&T DEFINITY Communic ations Systems Wid eb and  Tec hnic al 
Refe ren c e
, 555-230-230
nNetwork and Data Connec tivity Referenc e, 555-025-201
nAT&T DEFINITY Communic ations Systems...

DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
About This Document 
Page xiii  
nPrivate Branc h Exc hange (PBX) Switc hing  Eq uipment for Voic eb and  
Ap p lic ation, EIA/TIA-464-A
, February 1989. Published  b y Elec tronic s 
Ind ustry Assoc iation, eng ineering  d ep artment, 1722 Eye Street, N.W., 
Washing ton, D.C. 2006.
nAUSTEL (the Australian Stand ard s Institute) TS 014.1/1990, PRI  
Connec tion Volume I: Interfac e...

Introduction 
Page 1-1  
1
DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
1
1Introduction
A d ig ital trunk on a DEFINITY system is a 64 kp b s c hannel, c alled a DS0 c hannel, 
that has b een ad ministered  as a trunk in system ad ministration. This c hannel is 
time-multip lexed  onto a sing le 1.544 mb p s (d ig ital sig nal level 1, or DS1) or 2.048 
mb p s (Europ ean Conferenc e of Postal and  Telec ommunic ations Rate 1,...

DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
Introduction 
Page 1-2  
1
The c ap ab ilities and  features supp orted  b y these trunks vary ac c ord ing  to the 
sig naling  sc hemes they emp loy, inc luding  the following :
nBit-oriented  sig naling , inc lud ing :
— Robbed bit signaling (DS1-only)
— Bit-oriented  c ommon c hannel sig naling
nISDN PRI sig naling, whic h is messag e-oriented c ommon c hannel 
signaling
Based...

DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
Introduction 
Page 1-3  
1
The signaling  information in the 24th c hannel of a DS1 or the 16th c hannel in a 
CEPT1 c an also vary. The simp lest method  is to p rovid e only the b asic  A and B 
b it typ e of sig naling , whic h req uires only one or two b its of information 
(d ep end ing  on the trunk typ e), and  is thus limited  in the amount of information 
that c an be...

DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
Introduction 
Page 1-4  
1
The following  tab le summarizes the DS1/CEPT1 supp ort on the different interfac e 
c irc uit p acks for the various DEFINITY systems:
Imp lementing d ig ital trunks req uires first und erstanding  the req uired  ap p lic ations 
and  then imp lementing  the p artic ular typ es of dig ital trunks to suit the 
ap plic ations. From this p oint, imp lementing...

Applications 
Page 2-1 Narrowband vs. Wideband Switching 
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DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
2
2Applications
This c hap ter d isc usses some of the ap p lic ations for d ig ital trunks on DEFINITY 
systems. Applications for digital trunks can be divided into applications requiring 
servic es from the p ub lic  network of the d ifferent c ountries and  p rivate network 
ap plic ations not requiring  p ub lic  network...

DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
Applications 
Page 2-2 Mixed Mode Signaling in G3V2 
2
b ehind  the other in the same ord er as they c ame in. This is wid eb and  switc hing . 
This same analogy applied to narrowband switching would have multiple 
eng ines, eac h rep resenting a c all on a sing le c hannel, entering the switc hyard  
from different trac ks and  leaving  the switc hyard  on d ifferent trac ks. 
One...

DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
Applications 
Page 2-3 Public Network Applications in the United States 
2
Arg entina
Australia
Belg ium
CIS (Russia)
Czec hoslovakia
Fra nc e
Germany
Greece
Italy
Jap an
Mexico
Netherland s
Saud i Arab ia
Sing ap ore
Sp a i n
United Kingdom
United States
For information on the c urrent state of the servic es ac c essib le via G3V2 in 
c ountries other than the United  States, c...