ATT Definity Addendum 1 For Ds1, Dmi, Isdn Pri Instructions Manual

							AT&T
AT&T Business Communications Systems
subject:Addendum 1 (555-025-101ADD) for
DS1/DMI/ISDN-PRI Reference
(555-025-101)date:December 1990
AT&T
from:
The packet of addendum information enclosed with this cover memo includes any necessary
replacement, supplement, and errata pages to DS1/DMI/ISDN-PRI Reference. It contains both
new information and information from any previous addenda to the document. By
incorporating the addendum as instructed on the next page, you can update your copy of the
document to be current with the latest issue of the System 85 or DEFINITY® Generic 2.1
Communications System.
When you have incorporated the addendum, be sure to insert the addendum description
into your document behind the title page, where it will serve as a record that the
document has been addended. 
						

							ADDENDUM DESCRIPTION
This addendum includes necessary replacement, supplement, and errata pages to DS1/DMI/ISDN-PRI
Reference (555-025-101), Issue 4, dated April, 1990. Incorporate the addendum as instructed below to
update your copy of the document to be current with the latest issue of the System 85 or DEFINITY®
Generic 2.1 Communications System. Then insert this addendum description into the document,
behind the title page and before the table of contents. It will serve as a record that your
document has been addended.
Nature of the Document Changes
The general nature of the changes to your document is as follows: This packet contains information
about the following features:
l
l
l
lIntegrated Telemarketing Gateway Interface (ITGI), Integrated Telemarketing Gateway (ITG), and
ISDN Advantage including general descriptions on these unique applications of PRI trunks
Look-Ahead Interflow, while currently documented on page 1-28, has expanded general descriptive
information and additional administrative support information
Appendix E, Trunk Type and signaling Type Compatibility Tables is a new group of trunk tables
Miscellaneous cosmetic changes
Nature of the Addendum Pages
The addendum pages in this package may be of up to three types:
l
l
lReplacement pages contain new or changed information, indicated by margin rule marks ½ in text or
hand symbols    or     in tables and figures. They are to replace existing pages in your document.
Supplement pages contain all new information. They are to be added to your document.
Errata pages contain lists or descriptions of corrections to be noted by hand in your document.
Instructions for Handling Addendum Pages
Instructions for handling the addendum pages are as follows:
ADDENDUM 1 (December 1990) to 555-025-101, Issue 4
ADD-1 
						

							ADD-2ADDENDUM DESCRIPTION
ChapterType of ChangePages AffectedInstructions
Table of ContentsReplacementall pagesRemove all pages from document and
discard; replace with new Table of
Contents supplied.
About ThisReplacementall pagesRemove all pages from document and
Documentdiscard; replace with new About This
Document supplied.
Chapter 1Replacement1-3 to 1-6Remove pages 1-3 to 1-6 from document
and discard; replace with those supplied.
Chapter 1Errata
1-9Make corrections by hand on page 1-9 of
document. Add the following words to the
end of the second paragraph in the D-
Channels heading:
Up to 479 B-Channels may be controlled
by a single D-channel.
Chapter 1Replacement1-21 to 1-32Remove pages 1-21 to 1-32 from document
and discard; replace with pages 1-21 to
1-34 supplied.
Chapter 2Replacement2-1 to 2-2Remove pages 2-1 to 2-2 from document
and discard; replace with those supplied.
Chapter 2Replacement2-11 to 2-16Remove pages 2-11 to 2-16 from document
and discard; replace with those supplied.
Chapter 3Replacement
all pagesRemove all pages from document and
discard; replace new chapter supplied.
Chapter 5Replacement5-29 to 5-32Remove pages 5-29 to 5-32 from document
and discard; replace with those supplied.
Chapter 6Replacement6-1 to 6-8Remove pages 6-1 to 6-8 from document
and discard; replace with those supplied.
ADDENDUM 1 (December 1990) to 555-025-101, Issue 4 
						

							ADDENDUM DESCRIPTIONADD-3
ChapterType of ChangePages AffectedInstructions
Chapter 7Replacementall pagesRemove all pages from document and
discard; replace new chapter supplied.
(Retain and place sub-chapter tabs
appropriately.)
Chapter 8Replacement
8-7 to 8-8Remove pages 8-7 to 8-8 from document
and discard; replace with those supplied.
Appendix DReplacement
all pagesRemove all pages from document and
discard; replace with new appendix
supplied.
Appendix E
Supplementn/a
Add new appendix to document.
IndexReplacement
all pages
Remove all pages from document and
discard; replace with new Index supplied.
ADDENDUM 1 (December 1990) to 555-025-101, Issue 4 
						

							CONTENTS
ABOUT THIS DOCUMENT
PURPOSE
INTENDED AUDIENCES
PREREQUISITE SKILLS AND KNOWLEDGE
HOW THIS DOCUMENT IS ORGANIZED
HOW TO USE THIS DOCUMENT
TRADEMARKS AND SERVICE MARKS
RELATED SOURCES
HOW TO MAKE COMMENTS ABOUT THIS DOCUMENT
1.INTRODUCTION
FUNDAMENTALS OF DS1 SIGNALS
Channels
Framing Formats
Signaling Types
Line-Coding Formats
IMPORTANT CONCEPTS
Common-Channel Signaling
Alternate Voice/Data (AVD) Trunks
Bearer Capability (BC)
ISDN Call Processing
CBC Service Selection
Networking Restrictions and ISDN-PRI Limitations
2.NETWORK CONNECTIONS AND CONFIGURATIONS
NETWORK DIFFICULTIES
Hyperactivity
Glare
xxi
xxi
xxii
xxii
xxii
xxiv
xxiv
xxiv
xxv
1-1
1-1
1-7
1-10
1-14
1-16
1-22
1-23
1-23
1-23
1-27
1-30
1-32
2-1
2-1
2-1
2-2
iii
ADDENDUM 1 (December 1990) to 555-025-101, Issue 4 
						

							ivCONTENTS
DS1/DMI PRIVATE-NETWORK CONNECTIONS
Generic 1, Generic 2, System 75, or System 85 to Another System
Host Computer to Another System
2-3
2-3
2-3
IBM® IDNX Multiplexer to Another System
Other Vendor Digital Switch to Another System
Analog Switch to Another System
OPS to Another System Via a D4-Channel Bank
DS1/DMI PUBLIC-NETWORK CONNECTIONS
4ESS to Another System (Special-Access Connection)
5ESS to Another System
DACS to Another System
Analog CO to Another System Via a D4-Channel Bank
DS1/DMI TERMINAL-EQUIPMENT CONNECTIONS
CDM
CEM to a BCM320002-4
2-4
2-5
2-5
2-6
2-6
2-7
2-8
2-8
2-9
2-9
2-10
ISDN-PRI PRIVATE-NETWORK CONNECTIONS2-12
System 85 R2 to a System 85 R2V4, Generic 1, or Generic 22-12
System 85 or Generic 2 ISDN-PRI to Another Vendor’s Digital Switch2-13
ISDN-PRI PUBLIC-NETWORK CONNECTIONS2-13
System 85 R2V4, Generic 1, and Generic 2 to a 4ESS2-13
System 85 R2V4, Generic 1, or Generic 2 to a DACS2-15
System 85 or Generic 2 ISDN-PRI to a 5ESS2-15
ISDN-PRI INTRA-SWITCH CONNECTIONS2-16
Generic 2 ISDN-PRI with the Integrated Telemarketing Gateway Interface2-16
AT&T 6500 ISDN Advantage2-19
3.DS1 TRANSMISSION AND CABLING
METALLIC CABLING OPTIONS
DSX-1 Distance Limitations
Network Channel Terminating Equipment (NCTE)
On-Premises Cabling
Off-Premises Cabling
NONMETALLIC CABLING OPTIONS
3-1
3-2
3-2
3-2
3-6
3-9
3-10
ADDENDUM 1 (December 1990) to 555-025-101, Issue 4 
						

							CONTENTSv
CEM AND CDM CABLING CONFIGURATIONS
LINE EQUALIZER AND COMPENSATION SETTINGS
System 85 Traditional Modules3-11
3-13
3-13
3-13
Generic 1 and Generic 2 Universal Modules
4.THE DIGITAL LOSS PLAN
LOSS-PLAN IMPLEMENTATION AND PROVISIONING
Generic 2
Generic 1
PORT-TO-PORT LOSS VALUES
DS1/DMI/ISDN-PRI PORT LOSSES
TERMINATING A DS1 AT A CHANNEL BANK
Tie Trunk Ports
CO DID Trunk Ports
OPS Ports
5.
SYNCHRONIZATION OF DIGITAL FACILITIES
THE NEED FOR SYNCHRONIZATION
SYNCHRONIZATION HIERARCHY
System 85 and Generic 2 Synchronization Architecture
System 85 and Generic 2 Synchronization Software Operation
CHANGES TO THE SCS SOFTWARE MADE AVAILABLE VIA SOFTWARE PATCHES
System 75 and Generic 1 Synchronization Architecture
System 75 and Generic 1 Synchronization Software Operation
The External Synchronization Clock
NETWORK SYNCHRONIZATION AND ENGINEERING
Selecting a Timing Source for the Switch
Internal Reference Selection Rules
External-Reference Selection Rules
AVAILABILITY OF SYNCHRONIZATION SOURCES
CONCLUSIONS ON SYNCHRONIZATION
USE OF GENERIC 2 AS A SYSTEM CLOCK REFERENCE
4-1
4-2
4-2
4-3
4-4
4-6
4-6
4-6
4-6
4-7
5-1
5-1
5-3
5-7
5-9
5-11
5-11
5-12
5-14
5-18
5-18
5-19
5-27
5-28
5-29
5-29
ADDENDUM 1 (December 1990) to 555-025-101, Issue 4 
						

							viCONTENTS
ISDN-PRI Trunk Facilities
Line-Only Mode DS1/DMI-BOS (ANN11 or TN767)
Line+Trunk Mode DS1/DMI-BOS (ANN35 or TN767 with TN555)
DMI-MOS (ANN35 or TN767 with TN555)
USE OF GENERIC 1 AS A SYSTEM CLOCK REFERENCE
Trunk-Mode ISDN-PRI (TN767)
Trunk-Mode Interface (ISDN-PRI + Robbed Bit) (TN767)
Line-Only Mode DS1/DMI-BOS (TN767)
Trunk-Mode DS1/DMI-MOS (TN767)
6.PORT TYPES/INSTALLATION COMPATIBILITIES
GENERIC 1 DS1/DMI-BOS
Operating Mode
Supported Port Types
GENERIC 1 ISDN-PRI
SYSTEM 85 DS1, TRADITIONAL MODULES (ANN11)
Operating Modes
Line+Trunk Mode Port Grouping Rules
Supported Port Types
SYSTEM 85 DS1 OR DMI-MOS, TRADITIONAL MODULES (ANN35)
Operating Mode
Port Grouping Rules
Supported Port Types
7.
ADMINISTRATION OPTIONS AND REQUIREMENTS
SYSTEM 85 (R2V1 THROUGH R2V4)
Procedure 275 Word 4: ISDN Service — Enable/Disable
Procedure 276 Word 1: Other Feature Groups
Procedure 250 Word 1: DS1 — Carrier Designation
Procedure 260 Word 1: DS1/DMI/ISDN-PRI Physical Interface
Procedure 262 Word 1: ISDN Board Parameters
Procedure 354 Word 3: NPA-NXX Digits Assignment
5-29
5-29
5-30
5-30
5-30
5-30
5-31
5-31
5-31
6-1
6-4
6-4
6-4
6-5
6-6
6-6
6-10
6-10
6-13
6-13
6-14
6-14
7-1
7-3
7-3
7-4
7-5
7-6
7-16
7-18
ADDENDUM 1 (December 1990) to 555-025-101, Issue 4 
						

							CONTENTSvii
Procedure 000 Word 4:
Procedure 210 Word 2:
Procedure 010 Word 4:
Procedure 100 Word 1:
Procedure 100 Word 2:
Procedure 100 Word 3:
Procedure 101 Word 1:
Procedure 103 Word 1:
Procedure 116 Word 1:
Procedure 012 Word 1:
Procedure 012 Word 2:
Procedure 012 Word 3:
Procedure 309 Word 1:
Procedure 309 Word 5:
Procedure 321 Word 1:
Procedure 321 Word 5:
Procedure 107 Word 1:
Procedure 108 Word 1:
GENERIC 2
Procedure 275 Word 4:
Procedure 276 Word 1:
Procedure 250 Word 1:
Procedure 260 Word 1:
Proecdure 262 Word 1:
Procedure 262 Word 2:
Procedure 262 Word 3:
Procedure 280 Word 1:
Procedure 354 Word 3:
Procedure 000 Word 3:
Procedure 000 Word 4:
Procedure 210 Word 2:
Procedure 014 Word 1:
Procedure 014 Word 2:
Procedure 010 Word 4:NPA-NXX Index Designator
LDN, NPA, and NNX Attendant Partition Assignments
Line Side (B-Channel) BC and ISDN Routing Options
Trunk Group Type, Signaling, and Dial Access (ID) Code
Trunk Group Data Translations
ISDN Trunk Group Signaling Options
ISDN Trunk Group, CDR, Digital Loss Plan, and AVD Assignments
Trunk Group Digit Collection and Trunk-Side BC
DS1/DMI/ISDN-PRI Trunk Assignments
Name Database
Name Database
Name Database
ARS Assignments and IXC/ISDN Network Identifier
ARS and ISDN Trunk — Network Characteristics
AAR Assignments and IXC/ISDN Network Identifier
AAR and ISDN Trunk — Network Characteristics
ISDN Trunk Verification by Terminal, Attendant, and ATMS
ISDN Trunk Group Terminating Test Line Number (Digits)
ISDN Service — Enable/Disable
Other Feature Groups
SC/DS1 — Carrier Designation
DS1/DMI/ISDN-PRI Physical Interface
Additional DMI-MOS/ISDN-PRI Facility Options
ISDN-PRI D-Channel Backup
ISDN-PRI Codeset Map Assignments
ISDN-PRI Receive/Transmit Codeset Mapping
NPA-NXX Digits Assignment
Line-Side BCCOS Designator
NPA-NXX Index Designator
LDN, NPA, and NNX Attendant Partition Assignments
BCCOS Routing Options
BCCOS Data Options
Line Side (B-Channel) ISDN Routing Options7-19
7-20
7-22
7-23
7-26
7-27
7-31
7-34
7-36
7-39
7-41
7-42
7-43
7-45
7-46
7-48
7-49
7-50
7-53
7-53
7-54
7-54
7-56
7-67
7-69
7-71
7-72
7-75
7-76
7-78
7-79
7-80
7-82
7-84
ADDENDUM 1 (December 1990) to 555-025-101, Issue 4 
						

							viiiCONTENTS
Procedure 100 Word 1:
Procedure 100 Word 2:
Procedure 100 Word 3:
Procedure 101 Word 1:
Procedure 103 Word 1:
Procedure 116 Word 1:
Procedure 012 Word 1:
Procedure 012 Word 2:
Procedure 012 Word 3:
Procedure 279 Word 1:
Procedure 309 Word 1:
Procedure 309 Word 5:
Procedure 321 Word 1:
Procedure 321 Word 5:
Procedure 107 Word 1:
Procedure 108 Word 1:Trunk Group Type Signaling and Dial Access (ID) Code
Trunk Group Data Translations
ISDN Trunk Group Signaling Options
ISDN Trunk Group, CDR, and Digital Loss Plan
Network Trunk Group Translations
DS1/DMI/ISDN-PRI Trunk Assignments
Name Database
Name Database
Name Database
Network Facilities Coding
ARS Route Tables
ARS-ISDN BCCOS
AAR Tables (Generic 2)
AAR-ISDN and Other Feature Parameters
ISDN Trunk Verification by Terminal, Attendant and ATMS
ISDN Trunk Group TTL Number (Digits)
SYSTEM 75 (R1V2 AND R1V3)
Network Synchronization Options
Network Facilities — ISDN-PRI Applications
Trunk Group/Trunk Group Members
GENERIC 1
DS1 Circuit Pack Options
Network Synchronization Options — DS1 and ISDN-PRI Applications
Trunk Group/Trunk Group Members — DS1 Trunk Applications
Processor Interface Data Module — ISDN-PRI Applications
Processor Channel Assignments — ISDN-PRI Applications
Interface Links — ISDN-PRI Applications
Trunking Considerations — ISDN-PRI Applications
Network Facilities — ISDN-PRI Applications
Trunk Group — ISDN-PRI Trunk Applications
Trunk Group Usage Allocation — ISDN-PRI Applications
Usage Allocation Plan Assignment Schedule — ISDN-PRI Applications
Trunk Group Member Assignments — ISDN-PRI Trunk Applications
SID Prefix Table — ISDN-PRI Applications
7-85
7-88
7-90
7-93
7-95
7-96
7-99
7-100
7-101
7-102
7-104
7-106
7-107
7-108
7-110
7-111
7-113
7-116
7-118
7-119
7-127
7-127
7-133
7-135
7-138
7-139
7-140
7-141
7-143
7-144
7-153
7-155
7-157
7-158
ADDENDUM 1 (December 1990) to 555-025-101, Issue 4