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

							555-025-107
Issue 1
July 1993
DEFINITY®
Communications System
Generic 2.2 and Generic 3 V2
DS1/CEPT1/ISDN PRI Reference 
						

							Copyright Ó 1996, Lucent Technologies
All Rights Reserved
Printed in U.S.A.
Notice
Every effort was made to ensure that the information in this book was 
complete and accurate at the time of printing.  However, information is 
subject to change.
Your Responsibility for Your System’s Security
Toll fraud is the unauthorized use of your telecommunications system 
by an unauthorized party, for example, persons other than your 
company’s employees, agents, subcontractors, or persons working on 
your company’s behalf. Note that there may be a risk of toll fraud 
associated with your telecommunications system and, if toll fraud 
occurs, it can result in substantial additional charges for your 
telecommunications services.
You and your system manager are responsible for the security of your 
system, such as programming and configuring your equipment to 
prevent unauthorized use.  The system manager is also responsible for 
reading all installation, instruction, and system administration 
documents provided with this product in order to fully understand the 
features that can introduce risk of toll fraud and the steps that can be 
taken to reduce that risk. Lucent Technologies does not warrant that 
this product is immune from or will prevent unauthorized use of 
common-carrier telecommunication services or facilities accessed 
through or connected to it.  Lucent Technologies will not be 
responsible for any charges that result from such unauthorized use.
Lucent Technologies  Fraud Intervention
If you suspect that you are being victimized by toll fraud and you need 
technical support or assistance, call Technical Service Center Toll 
Fraud Intervention Hotline at 1 800 643-2353.
Federal Communications Commission Statement
Part 15:  Class A Statement.  This equipment has been 
tested and found to comply with the limits for a Class A digital 
device, pursuant to Part 15 of the FCC Rules.  These limits are 
designed to provide reasonable protection against harmful 
interference when the equipment is operated in a commercial 
environment.  This equipment generates, uses, and can radiate 
radio-frequency energy and, if not installed and used in 
accordance with the instruction manual, may cause harmful 
interference to radio communications.  Operation of this 
equipment in a residential area is likely to cause harmful 
interference, in which case the user will be required to correct 
the interference at his or her own expense.
Part 68: Network Registration Number. This equipment is registered 
with the FCC in accordance with Part  68 of the FCC Rules. It is 
identified by FCC registration number AS593M-11185-MF-E.
Part 68: Answer-Supervision Signaling. Allowing this equipment to 
be operated in a manner that does not provide proper 
answer-supervision signaling is in violation of Part 68 rules. This 
equipment returns answer-supervision signals to the public switched 
network when:
• Answered by the called station
• Answered by the attendant
• Routed to a recorded announcement that can be 
administered by the CPE user
This equipment returns answer-supervision signals on all DID calls 
forwarded back to the public switched telephone network.   Permissible 
exceptions are: 
• A call is unanswered
• A busy tone is received
• A reorder tone is receivedTrademarks
DEFINITY is a registered trademark of Lucent Technologies in the 
U.S. and throughout the world.  Inthis document, DEFINITY 
Communications System Generic 1 and Generic 3 is often abbreviated 
to DEFINITY Generic 1 or Generic3 or G1/G3.
Ordering Information
Call: Lucent Technologies Publications  Center
Voice 1 800 457-1235 International Voice 317 361-5353
Fax 1 800 457-1764 International Fax 317 361-5355
Write: Lucent Technologies Publications Center
P.O. Box 4100
Crawfordsville, IN 47933
Order: Document No.  555-025-107
Issue 1, July 1993
Comments
To comment on this document, return the comment card at the end of 
the document.
Acknowledgment
This document was prepared by the Product Documentation 
Development group, Lucent Technologies, Denver, CO and Columbus, 
OH. 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  
Issue 1
July 1993
Contents 
Page iii  
Contents
Contents iii
About This Document ix
1 Introduction 1-1
2 Applications 2-1
nNarrowband vs. Wideband Switching2-1
nMixed Mode Signaling in G3V22-2
nGlobal Public Network Applications2-2
nPublic Network Applications in the United States2-3
Local Exchange Applications2-3
Interexchange Carrier Applications2-4
ACCUNET Switched Digital Services and
Switched 56 Service2-8
MEGACOM Service2-9
MEGACOM 800 Service2-10
Software Defined Network and 
Software Defined Data Network2-10
nPrivate Network Applications2-11
3 Equipment and Software Requirements 3-1
nANN11C and ANN35 Line
Compensation Jumper Settings3-4
nTN464C Jumper Settings3-5
nDS1/CEPT1 Board Cable to CSU3-7
n75 Ohm DS1/CEPT1-to CSU Cable3-7
nESF T1 Channel Service Unit3-7
ESF T1 CSU Switch Settings3-8
Smart Jacks3-13
nCEPT1 Channel Service Unit3-14
nMultiplexers and Other Customer Premises Equipment3-15
4 Physical Layer 4-1
nBit Rate4-1
G2.2 Bit Rate Implementation4-2
G3V2 Bit Rate Implementation4-2
nFraming Format4-2
The DS1 Superframe4-3 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
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DS1 ESF Framing4-4
CEPT1 Framing4-6
G2.2 Framing Format Implementation4-7
G3V2 Framing Format Implementation4-8
nCompanding4-8
nChannel Structure and Signaling4-10
Robbed-Bit Signaling4-11
DS1 Common Channel Bit Oriented Signaling4-11
CEPT1 Common Channel Bit-Oriented Signaling4-13
ISDN PRI Signaling4-15
G2.2 Signaling Implementation4-15
G3V2 Signaling Implementation4-16
nLine Coding4-18
Alternating Mark Inversion Line Coding4-19
ZCS Line Coding4-19
B8ZS Line Coding4-19
HDB3 Line Coding4-20
Restricted and Unrestricted Facilities and Data4-21
Bit Inversion on ISDN PRI D Channels4-24
G2.2 Line Coding Implementation4-25
G3V2 Line Coding Implementation4-25
nLine Compensation4-25
nIdle Code4-26
nThe Digital Loss Plan4-26
Loss-Plan Implementation4-28
Port-to-Port Loss Values4-30
DS1/CEPT1 Port Losses4-31
Terminating a DS1 at a Channel Bank4-32
nSynchronization4-33
The Need for Synchronization4-33
Synchronization Hierarchy4-36
Synchronization Architecture and Operations4-40
The External (ST3) Synchronization Clock4-48
Network Synchronization and Engineering4-54
Availability of Synchronization Sources4-66 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
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Conclusions on Synchronization4-67
Use of G2.2 as a System Clock Reference4-67
Use of G3V2 as a System Clock Reference4-69
G2.2 Synchronization Implementation4-70
G3V2 Synchronization Implementation4-71
5 Layers 2 and 3 5-1
nBit Oriented Signaling Layers 2 and 35-1
G2.2 Implementation5-3
G3V2 Implementation5-4
nISDN PRI Layer 25-4
G2.2 Layer 2 Termination5-5
G3iV2 Layer 2 Termination5-5
G3rV2 Layer 2 Termination5-6
Layer 2 User-Network and Master-Slave Protocol5-6
Layer 2 Timers and Counters5-8
nISDN PRI Layer 35-8
Country-Specific Layer 3 in G3V25-9
Facility-Associated and Non-Facility Associated
Signaling5-10
Call Control Signaling5-16
Call Control Messages5-22
User-to-User Information Signaling5-36
Call by Call Service Selection in G2.2 Systems5-55
Call by Call Service Selection in G3V2 Systems5-55
Incoming Call Handling Table in G3V25-57
6 System Administration 6-1
nG3V2 Administration6-1
System Parameters—Customer Options Form6-2
Feature-Related System Parameters Form Settings6-3
Maintenance-Related System Parameters 
Form Settings6-3
Data Module Form Settings6-3
DS1 Circuit Pack Form Settings6-4
Synchronization Plan Form Settings6-14
Signaling Group Form Settings 
(G3V2 Systems Only)6-14 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
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Communication Interface Links Form Settings6-18
Communication Processor Channel 
Assignment Form Settings6-19
Communication Interface Links Form — Enable6-20
Trunk Group Form Settings6-20
Network Facilities Form6-36
Routing Patterns Form6-36
CPN Prefix Table Form Settings6-40
Terminating Extension Group Form Settings6-41
Hunt Group Form Settings6-42
nG2.2 Administration6-42
Administration Summary6-42
Procedure 275 Word 4: ISDN Service —
Enable/Disable6-43
Procedure 276 Word 1: Other Feature Groups6-44
Procedure 250 Word 1: SC/DS1 —
Carrier Designation6-44
Procedure 260 Word 1: DS1/DMI/ISDN-PRI
Physical Interface6-45
Procedure 262 Word 1: Additional
DMI-MOS/ISDN-PRI Facility Options6-55
Procedure 262 Word 2: ISDN-PRI 
D-Channel Backup6-59
Procedure 262 Word 3: ISDN-PRI 
Codeset Map Assignments6-60
Procedure 280 Word 1: ISDN-PRI
Receive/Transmit Codeset Mapping6-61
Procedure 354 Word 3: NPA-NXX 
Digits Assignment6-64
Procedure 000 Word 3: Line-Side 
BCCOS Designator6-65
Procedure 000 Word 4:  NPA-NXX 
Index Designator6-65
Procedure 210 Word 2: LDN, NPA, 
and NNX Attendant Partition Assignments6-66
Procedure 014 Word 1: BCCOS Routing Options6-67
Procedure 014 Word 2: BCCOS Data Options6-69
Procedure 010 Word 4: Line Side (B-Channel)
ISDN Routing Options6-70 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
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Procedure 100 Word 1: Trunk Group Type
Signaling and Dial Access (ID) Code6-71
Procedure 100 Word 2: Trunk Group 
Data Translations6-73
Procedure 100 Word 3: ISDN Trunk Group
Signaling Options6-74
Procedure 101 Word 1: ISDN Trunk Group, 
CDR, and Digital Loss Plan6-77
Procedure 101 Word 3: Prefix Digits6-79
Procedure 103 Word 1: Network 
Trunk Group Translations6-79
Procedure 116 Word 1: DS1/DMI/ISDN-PRI
Trunk Assignments6-83
Procedure 012 Word 1: Name Database6-85
Procedure 012 Word 2: Name Database6-86
Procedure 012 Word 3: Name Database6-87
Procedure 107 Word 1: ISDN Trunk Verification
by Terminal, Attendant, and ATMS6-87
Procedure 108 Word 1: ISDN Trunk 
Group TTL Number (Digits)6-88
Procedure 279 Word 1: Network Facilities Coding6-88
Procedure 322 Word 1: WCR Outgoing ISDN
Feature Parameters6-91
Procedure 318 Word 1: ISDN Sending 
Index and Digit Sending Index6-92
Procedure 318 Word 2: Assigns a 
BCCOS to a Preference6-92
A G2 ISDN PRI Implementation 
in Administration A-1
Procedure 000 Word 3A-1
Procedure 000 Word 4A-3
Procedure 010 Word 4A-4
Procedure 012A-4
Procedure 100 Word 1A-5
Procedure 100 Word 2A-6
Procedure 100 Word 3A-6
Procedure 103A-7
Procedure 107 Word 1A-7
Procedure 108 Word 1A-8 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
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Issue 1
July 1993
Contents 
Page viii  
Procedure 116 Word 1A-8
Procedure 210 Word 2A-9
Procedure 260 Word 1A-9
Procedure 262 Word 1A-9
Procedure 262 Word 3A-11
Procedure 275 Word 4A-11
Procedure 279 Word 1A-11
Procedure 280 Word 1A-11
Procedure 309 Word 5A-13
Procedure 321 Word 5A-16
Procedure 354 Word 3A-16
Procedure 420A-17
B Digital Trunk Administration
Summary for U.S. Applications B-1
IN Index IN-1 
						

							About This Document 
Page ix  
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
This d oc ument c overs narrowband  switc hing  using d ig ital fac ilities based  on the 
d ig ital sig nal level 1.(DS1) 1.544 mb p s and  Conferenc e of Postal and 
Telec ommunic ations (CEPT1) 2.048 mb p s rates in the DEFINITY
® G2.2 and  
G3V2 systems. Narrowband  switc hing  means switc hing single 64 kb p s timeslots, 
whic h has b een the only typ e of d ig ital switc hing  on DEFINITY systems until 
G3V2. Starting  with G3V2, multip le 64 kb p s timeslots c an b e switc hed  as a sing le 
entity. This is called wideband switching. Wideband switching employs digital 
fac ilities on b oth the line sid e and  trunk sid e of the system.
A sep arate referenc e doc ument exists for wid eb and  switc hing . For tec hnic al 
information on all asp ec ts of wid eband  switc hing  in DEFINITY systems, see 
AT& T 
DEFINITY Wid eb and  Tec hnic al Referenc e
, issue 1, 555-230-230.
The d oc ument at hand  c overs the narrowb and  DS1 and  CEPT1 switc hing  
c ap ab ilities of DEFINITY systems, inc lud ing  the following  g eneral subjec ts:
nThe c ap ab ilities of DS1 and  CEPT1 fac ilities in the DEFINITY systems
nHow these c apab ilities have b een d esig ned  into the DEFINITY systems
nHow to implement dig ital fac ilities
nGeneral information on d igital trunks and  d ig ital fac ilities 
The DEFINITY systems this d oc ument c overs are as follows:
nGeneric  2.2, referred  to as G2.2.
nGeneric  3 version 2, referred  to as G3V2. When nec essary, the distinc tion 
G3iV2 and  G3rV2 will b e used to d isting uish the two types of G3V2 
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 x  
For DS1/CEPT1/ISDN PRI information on G1, G2.1, G3iV1, G3rV1 and  
G3i–Glob al, see 
DS1/CEPT1/ISDN PRI Referenc e, 555-025-103, issue 1, Aug ust 
1992.
The imp ortant d ig ital trunk c hang es from G3iV1, G3rV1, and G3i–Glob al that 
have b een inc orp orated  into G3V2 are as follows:
nThe c ap ab ilities of G3i–Glob al have b een inc orporated  into G3V2.
nWid eb and  switc hing has b een ad d ed . For information on this sub jec t, 
refer to 
AT&T DEFINITY Wid eb and Tec hnic al Referenc e, Issue 1, 
555-230-230.
nThe Europ ean Comp uter Manufac turers Assoc iation (ECMA) sp ec ific ation 
for ISDN PRI layer 3 b asic  c all setup  b etween two p rivate network 
switc hes has b een imp lemented .
nSupp ort for overlap  rec eiving on ISDN PRI trunk g roup s has b een ad d ed .
nImproved glare handling for ISDN PRI trunks has been added.
nISDN PRI supp ort for Sp ain and  Jap an and  dig ital trunk c ap abilities for 
other c ountries has b een ad d ed .
Two typ es of d ig ital trunks are sup p orted  on the DEFINITY systems, inc lud ing 
trunks b ased  on the d ig ital sig nal level 1 (DS1, 1.544 mb ps) stand ard  and  trunks 
b ased on the Conferenc e of Postal and  Telec ommunic ations Rate 1 Conferenc e 
of Postal and Telec ommunic ations Rate 1 (CEPT1 2.048 mb p s) stand ard . The 
capabilities and features supported by these trunks vary depending on the 
sig naling  sc hemes used  on the trunks, whic h c an b e b it-oriented sig naling or 
messag e-oriented  sig naling . Dig ital trunks c an use several typ es of b it-oriented  
sig naling  b ut only one kind  of messag e-oriented  sig naling —ISDN PRI sig naling .
Desc rib ing  how DS1 and  CEPT1 trunk c ap ab ilities have b een d esig ned  into 
these systems entails d esc rib ing  the following :
nApplications
Different app lic ations require d ifferent implementations of d ig ital trunks. 
For example, the AT&T network offers 56 kb p s, 64 kb p s, 384 kb p s, and  
1536 kb p s d ig ital d ata servic es that c an b e ac c essed  via DEFINITY 
systems d ig ital trunks. The 56 kb p s op tion req uires a DS1 trunk with 
rob b ed  b it sig naling  or a DS1 trunk with ISDN PRI sig naling. The 64, 384, 
and  1536 kb p s op tions, however, req uire ISDN PRI sig naling .
nImplementation Guidelines 
This inc lud es the d etails need ed  b y field  p ersonnel to imp lement d ig ital 
trunks, c onsisting  of sub jec ts suc h as ord ering  information for req uired  
eq uip ment and  software and  g uid elines for how to ad minister various 
features and c ap ab ilities on DS1 and  CEPT1 b ased  trunks.