Nortel DMS-100 Series Istruzioni operative e di manutenzione
297-1001-131
DMS-100 Family
DMS-100 Ringing System
General Description
BASE15 and up Standard 06.01 October 2000
DMS-100 Family
DMS-100 Ringing System
General Description
Publication number: 297-1001-131
Product release: BASE15 and up
Document release: Standard 06.01
Date: October 2000
Copyright © 1990, 1991, 1993, 1994, 1995, 1996, 1998, 1999, 2000 Nortel Networks,
All Rights Reserved
NORTEL NETWORKS CONFIDENTIAL: The information contained herein is the property of Nortel Networks and is
strictly confidential. Except as expressly authorized in writing by Nortel Networks, the holder shall keep all information contained
herein confidential, shall disclose the information only to its employees with a need to know, and shall protect the information, in
whole or in part, from disclosure and dissemination to third parties with the same degree of care it uses to protect its own
confidential information, but with no less than reasonable care. Except as expressly authorized in writing by Nortel Networks, the
holder is granted no rights to use the information contained herein.
Nortel Networks, the Nortel Networks logo, the Globemark, How the World Shares Ideas, and Unified Networks are trademarks of
Nortel Networks.
DMS-100 Family DMS-100 Ringing System BASE15 and up
iii
Publication history
October 2000 BASE15 Standard 06.01
• Added Universal Edge 9000 (UEN) ringing information.
March 2000 BASE14 Standard 05.01
• Added United Kingdom ringing configuration changes
September 1999
BASE12 Standard 04.04
• added a ringing generator configuration change procedure for single line
concentrating module configurations
August 1999 BASE12 Standard 04.03
• changed description of Japan ringing type C3D from feature AU3458
• included an illustration of United Kingdom distinctive ringing cadences
• added a ringing generator configuration change procedure
iv
297-1001-131 Standard 06.01 October 2000
July 1998 BASE08 Standard 04.02
• added description of United Kingdom ringing and a limit on Distinctive
Ringing Enhancements
August 1997 BASE08 Standard 04.01
• added C3C distinctive ringing pattern information for Malaysia and
Australia from feature AR2137
• updated description of revertive ringing, noting that revertive ringing is not
supported for FSR lines
August 1996 BCS36 Standard 03.05 incorporated editorial changes
August 1995 BCS36 Standard 03.04 incorporated editorial changes
April 1995 BCS36 Standard 03.03
• added note in chapter 1 for setting office parameters
IMMEDIATE_RING_ENABLE and
ALLOW_RINGING_ON_TIP_SIDE with regard to immediate ringing
functionality.
• added information about response to the QUERYPM command at the
MAP terminal for LCMs when in no-display mode. The switch provides
operating company personnel the status of the ringing generators in a
posted LCM.
December 1993
BCS36 Standard 03.02
• incorporated editorial changes
• removed low-level software descriptions of ringing functionality
v
DMS-100 Family DMS-100 Ringing System BASE15 and up
October 1993 BCS36 Preliminary 03.01
• rearranged chapters
• incorporated technical and editorial changes
• updated section on LCMs in chapter 3.
March 1991 BCS32 Standard 02.01
• included streamline information
• converted document to new format
September 1990
BCS31 Standard 01.07
• added NT2X27AE ringing generator interface (RGI) to the list of RGIs in
the Line Module/Remote Line Module description.
• added statement indicating that an NT2X27AB is required when using
CODED C30 ringing and an NT2X27AA is required when using CODED
C ringing.
DMS-100 Ringing System
vii
Contents
About this document xi
When to use this document xi
How to check the version and issue of this document xi
References in this document xi
What precautionary messages mean xii
How commands, parameters, and responses are represented xiii
Input prompt (>) xiii
Commands and fixed parameters xiii
Variables xiii
Responses xiv
1 DMS-100 ringing overview 1-1
Introduction 1-1
Normal and immediate ringing 1-2
ANI and coin functions 1-5
Types of ringing 1-5
Frequency selective ringing 1-5
Superimposed ringing 1-9
Coded ringing 1-15
Distinctive ringing 1-20
Ringing characteristics 1-32
Provisioning ringing generators 1-39
Ringer configurations 1-39
Audible ring back signal 1-41
Ringing in the UEN 1-42
2 Ringing in Series I peripherals 2-1
Ringing types supported by LM and RLM 2-1
LM and RLM ringing configuration 2-1
LM and RLM ringing hardware 2-2
Ring generator interface 2-2
Line module power converter 2-3
Ring multiplexer 2-3
Ring bus 2-3
LM and RLM ringing process 2-3
LM and RLM processors associated with ringing 2-4
SP and RGI interactions 2-5
Ringing takeover 2-6
Ringing take back 2-7
viii Contents
297-1001-131 Standard 06.01 October 2000
Ringing generator capacity 2-8
Ringing generator takeover and take back 2-9
LM and RLM ringing generator parameters 2-9
3 Ringing in Series II peripherals 3-1
Ringing in the subscriber carrier module 3-1
SCM-100U 3-1
SCM-100U/RCU ringing configuration 3-2
Ringing hardware 3-3
SCM-100R 3-5
SCM-100R/RCT ringing configuration 3-5
Ringing hardware 3-7
SCM-100R ringing hardware 3-7
RCT ringing hardware 3-8
Ringing generator capacity 3-9
Ringing generator takeover 3-9
SCM-100S 3-9
Ringing types supported by SCM-100S 3-9
SCM-100S ringing configuration 3-9
SCM-100S ringing hardware 3-10
RCS hardware 3-11
Ringing generator takeover 3-11
LCM ringing functional description 3-11
Ringing generator capacity 3-14
Types of ringing supported 3-14
Ringing configuration 3-14
Detailed ringing schematic 3-17
Ringing signals 3-19
ANI/coin signals 3-21
Ringing process 3-22
Ringing synchronization task 3-22
Ringing generator output zero-crossing detection 3-22
Ringing schedule task 3-22
Ringing and ANI/coin messaging 3-23
Ringing sequence flowchart 3-24
Ringing generator configuration change procedure 3-26
Dual LCM configuration 3-26
Single LCM configuration 3-37
Ringing in the Universal Edge 9000 3-45
Ringing in the Remote Line Concentrating Module 3-47
Ringing in the Outside Plant Module and OPAC 3-47
Ringing in the Remote Switching Center 3-47
4 Administration of DMS ringing 4-1
Assigning ringing to line modules 4-1
Assigning ringing type to PM 4-1
Ringing generators 4-2
Ringing generator interface 4-2
Line cards 4-2
Table LMRNG 4-3
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