Nortel QMT7 ADM User manual

Meridian Data Services Description
Meridian 1
Meridian Data Services
Description
Document Number: 553-2731-100
Document Release: Standard 5.00
Date: April 2000
Year Publish FCC TM
Copyright © 1990–2000 Nortel Networks
All Rights Reserved
Printed in Canada
Information is subject to change without notice. Nortel Networks reserves the right to make changes in design
or components as progress in engineering and manufacturing may warrant. 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, and the
radio interference regulations of Industry Canada. 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 their own expense.
SL-1 and Meridian 1 are trademarks of Nortel Networks.

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Meridian Data Services Description
4
Revision history
April 2000 Standard 5.00. This is a global document and is up-issued for X11 Release
25.0x. Document changes include removal of: redundant content; references
to equipment types except Options 11C, 51C, 61C, and 81C; and references
to previous software releases.
December 1994 Standard, release 4.00. Reissued to include editorial changes and indexing.
Due to the extent of the changes, revision bars are not used.
August 1993 Standard, release 3.00. Reissued to include changes for X11 release 19.
December 1992 Standard, release 2.00. Reissued to include updates for X11 release 18. Due
to the extent of the changes, revision bars are ommited.
August 1990 Standard, release 1.00. Reissued for compliance with Nortel Networks
standard 164.0.

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553-2731-100 Standard 5.00 April 2000

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Meridian Data Services Description
8
Contents
General information . . . . . . . . . . . . . . . . . . . . . . . . 9
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Content list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Basic data call configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Automated Modem Pooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Equipment description . . . . . . . . . . . . . . . . . . . . . . 21
Content list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Reference list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Add-on Data Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
QMT7 ADM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
User controls, indicators, and settings . . . . . . . . . . . . . . . . . . . . . . . 25
Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Operating Distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
QMT8 SADM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
QMT12 ADM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Data Line Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4-Port Data Line Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Modem Pool Line Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Supplementary power unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
RS-232 cord assemblies (NE-25MQ2A) . . . . . . . . . . . . . . . . . . . . . 34

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553-2731-100 Standard 5.00 April 2000
Modem pool cable (QCAD5A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
QMT9 AIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Controls and indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Asynchronous Interface Line Card . . . . . . . . . . . . . . . . . . . . . . . . . 36
Operating characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
QMT11 ASIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Controls and indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
PC Interface Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Protocol Converters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Multi-Channel Data System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Asynchronous Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
MCDS Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Spectron Patch Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
X.25 Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Features and services . . . . . . . . . . . . . . . . . . . . . . 49
Content list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Reference list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Automatic Dialing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Call Forward All Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Call Forward—internal calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Ring Again . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Speed Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
User Selectable Call Redirection . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Automatic Set Relocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Automatic Route Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Call Detail Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Hunting—Computer Ports and Modem Pool
(See Dataport Hunting) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Dataport Hunting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Digital Trunk Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Computer/PBX Interface (CPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Remote Peripheral Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Contents Page 7 of 80
Meridian Data Services Description
Outbound Modem Pooling (not AMP) . . . . . . . . . . . . . . . . . . . . . . 56
Inbound Modem Pooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Dedicated modems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Automated Modem Pooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Outbound AMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Inbound AMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Keyboard dialing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Keypad dialing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Synchronous Data Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Hotline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Transparent Data Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Meridian Communications Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Content list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Reference list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Allowable operating distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Single wire gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Mixed wire gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
AIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Cable specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Modem pool configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Hardware requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
ADM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
AIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
ASIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
DLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
AILC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Modem Pool Line Card (asynchronous outbound only) . . . . . . . . . 70
Multi-Channel Data System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

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553-2731-100 Standard 5.00 April 2000
Traffic measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Memory and real time requirements . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Maintenance and testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

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Meridian Data Services Description
10
General information
Meridian 1 data features are optional packages that are compatible with X11
software. They provide integrated voice and data calls.
References For complete details concerning specific Meridian data features, refer to the
following documents:
• Meridian Communications Adapter: M3902, M3903, M3904 User Guide
•Meridian 1 Telephones: Description and Specifications (553-3001-108)
• Meridian Programmable Data Adapter User Guide
•X11 Features and Services (553-3001-306)
•NT7D16 Data Access Card: Description and Operation (553-3001-191)
•Multi-Purpose Serial Data Link: Description (553-3001-195)
•Meridian Data Features: Traffic Engineering and Configuration
(553-2731-151)
•Meridian Data Features: Operations and Tests (553-2731-300)
•X11 Administration (553-3001-311)
•ISDN Basic Rate Interface: Product Description (553-3901-100)
•ISDN Basic Rate Interface: Installation (553-3901-200)
•ISDN Basic Rate Interface: Administration (553-3901-300)
•ISDN Basic Rate Interface: Acceptance Testing (553-3901-330)
•ISDN Basic Rate Interface: Maintenance (553-3901-500)

Page 10 of 80 General information
553-2731-100 Standard 5.00 April 2000

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Meridian Data Services Description
20
Introduction
Content list The following are the topics in this section:
•Basic data call configuration 11
•Automated Modem Pooling 12
•Capabilities 18
•Hardware 19
Basic data call configuration
The Meridian Data Services features support a wide range of dial-up data
communication activities. These applications fall into different basic
categories based on equipment configuration. These categories are
designated as follows:
• Local Terminal to Terminal activities involve in-house communication
between intelligent terminals, display terminals, and data entry devices.
Word processor communication and conversational information
exchange fall into this category (Figure 1).
• Terminal to Terminal Computer Port configurations support applications
such as distributed data processing, time-shared computing, and
inquiry/response (Figure 2).
• Terminal to Remote Device applications involve the use of a modem
pool to access analog lines for external data communications. The
Meridian 1 permits external data calling on facilities also used for voice
communications, such as WATS, FX and TIE lines (Figure 3).

Page 12 of 80 Introduction
553-2731-100 Standard 5.00 April 2000
• Remote Terminal to Local Device applications involve the use of an
inbound modem pool for incoming calls to access local devices
(terminals or computer ports). The Meridian 1 permits incoming data
calling on facilities also used for voice communications, such as WATS,
FX and TIE lines. (Figure 4).
Note: Remote Peripheral Equipment (RPE)may also be used forremote
terminals to local device operation. The various data applications and
hardware that may be connected to the Meridian 1 are shown in Figure 5.
The modem pool configuration provides internal data stations access to
shared dial-up modems for outgoing trunk calls or remote terminals access to
local computer ports over a voice grade network. An Add-on Data Module
(ADM) connectedto themodem provides theData Directory Number (DDN)
required for the receipt of incoming calls to the pooled modem.
Automated Modem Pooling
Meridian 1 offices that use X11 release 5 provide the database to
accommodate ADM Trunk Group and the optional Automated Modem
Pooling (AMP) features. These features allow access to local or remote data
stations using ADM/Modem pairs with a single-step dialing procedure and
eliminate the need for separate inbound and outbound pools. AMP uses the
Dataport Hunting feature to select the appropriate data set or dataport.

Introduction Page 13 of 80
Meridian Data Services Description
Figure 1
Terminal to Terminal Data Call configuration
553-4212
SL-1
MCDS-AC
SL-1
protocol
converters
IBM hosts
PDN
X25
pad

Page 14 of 80 Introduction
553-2731-100 Standard 5.00 April 2000
Figure 2
Terminal to Terminal Computer Port Data Call configuration
553-4213
SL-1
MCDS-AC
SL-1
protocol
converters
IBM hosts

Introduction Page 15 of 80
Meridian Data Services Description
Figure 3
Terminal to Remote Device Data Call configuration
553-4214
SL-1
WATS
TIE
FX
DDD trunks
X25
gateway
PDN
Outbound
modem pool

Page 16 of 80 Introduction
553-2731-100 Standard 5.00 April 2000
Figure 4
Remote Terminal to Local Device Data Call configuration
553-4216
SL-1
WATS
TIE
FX
DDD trunks
Inbound
modem pool
X25
networks
SL-1
protocol
converters
X25
pad

Introduction Page 17 of 80
Meridian Data Services Description
Figure 5
Overview of Meridian 1 Data Applications
553-4217
SL-1
I
S
D
L
C
R
I
L
C
4
P
D
L
C
4
P
D
L
C
D
T
I
A
I
L
C
4
P
D
L
C
D
T
I
DLC
(2 voice & 2 data)
A
I
L
C
Out/In
modem pool
A
I
L
C
Host
F
E
P
I
B
M
h
o
s
t
Twisted
3178, 3278,
3270 DDD trunks
Wats
Tie & FX
Digital trunks
Cluster controllerMCCS
IBM 3101
Televideo 970
LS ADM -11
HP 2621
Falco TS-1
or other RS422
compatible devices
IBM PC
Asynch AIM with
terminal
DP1200 display
phone
IVD
SADM
Asynch/Synch ASCII
terminal
M300
touchphone
Stand-alone
ADM
MCDS
CPI-link
Public data
network
X.25
BSC or SNA
emulation
Twisted
Coax
Public
and private
network
(PDN)
3274
Coax
CIM

Page 18 of 80 Introduction
553-2731-100 Standard 5.00 April 2000
Capabilities Meridian Data Services allow for flexible configuration of data terminal
equipment and permit the customer’s data communications equipment to
correspond to actual usage. The following is a summary of the advantages
that implementation of the Meridian 1 data feature offers:
• Eliminates the need for separate voice and data switching systems and
allows the use of common wiring.
• Provides efficient utilization of trunks or lines by eliminating the
requirement for separate trunks or dedicated lines, as would be the case
if a separate data switching system or private or leased lines were used.
• Extends to data users several Meridian 1 system and station features
typically limited to voice calling only.
• Provides simultaneous voice and data calling capabilities through an
SL-1 telephone using the standard two-pair wire.
• Allows convenient relocation of data terminal equipment.
• Allows multiple device access from data terminal equipment.
• Provides flexible operating distances of equipment (for example,
terminals and computers) from the Meridian 1.
• Eliminates most equipment associated with fixed data configurations
(e.g., base-band modems, dedicated telephone sets and wiring).
• Provides efficient use of computer ports through use of the queuing and
hunting features offered by Meridian 1.
• Allows the voice-grade modems required for incoming/outgoing trunk
calls to be shared between users and trunks on a non-dedicated hunt
group basis. These modems can thus be supplied according to actual data
traffic requirements.
• Allows the co-located ADM or AIM or ASIM to access the Serial Data
Interface (SDI) port.
• Provides Synchronous Data Switching, Synchronous Keypad dialing,
Asynchronous Keyboard Dialing (KBD) and Inbound Modem Pooling.
Offices thatare equipped with theAMP feature do not require separate inbound
and outbound modem pools. The other pooling requirements still apply.

Introduction Page 19 of 80
Meridian Data Services Description
Hardware
Configuring data features in the Meridian 1 may require different hardware
components. The hardware items available are
Modules
• QMT7 Asynchronous Data Module (ADM)
• QMT8 Synchronous Add-on Data Module (SADM)
• QMT9 Asynchronous Interface Module (AIM)
• QMT11 Asynchronous Synchronous Interface Module (ASIM)
• QMT12 V.35 ADM
• Asynchronous Interface Line Unit
• Enhanced Asynchronous Interface Line Unit
• NT9N20 Coax Interface Module (CIM)
• Meridian SL-1/74 Protocol Converter
• Meridian SL-1/71 Protocol Converter
• Meridian SL-1/50 Protocol Converter (System 36 Gateway)
• SLX25-108A X.25 Gateway (110 V, 8-port)
• SLX25-116A X.25 Gateway (110 V, 16-port)
• SLX25-208A X.25 Gateway (220 V, 8-port)
• SLX25-216A X.25 Gateway (220 V, 16-port)
• Meridian M2000 or M2317 Digital Telephones

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553-2731-100 Standard 5.00 April 2000
Circuit Cards
• QPC311(QPC341) Data Line Card (DLC)
• QPC432 4-Port Data Line Card (4PDLC)
• QPC353(QPC354) Modem Pool Line Card (MPLC)
• QPC60(QPC284) 500 Set Line Card
• QPC452 500 Set Line Card (Double Density)
• QPC397 4-port Multi-Channel Data System (MCDS) Asynchronous
Card (MCDS-AC)
• QPC430 4-port Asynchronous Interface Line Card (AILC)
• QPC472 Digital Trunk Interface (DTI or CPI)
• QPC512 Personal Computer Interface (PCI) Card
• QPC578C Integrated Services Digital Line Card (ISDLC)
• QPC723 RS-232 Interface Line Card (RILC)
• NT9N02 MCCS Interface Card (CIC)
The A-Law equivalent circuit pack numbers, where available, are shown in
brackets ( ) following the µ-Law numbers.
Miscellaneous
• QSD27 MCDS Shelf
• QSY27 MCDS Power Supply (110 V)
• QSY32 MCDS Power Supply (220 V)
• QCA76 Large MCDS Cabinet (optional)
• QCA77 Small MCDS Cabinet (optional)
• NT9N01 Multi-Channel Coax System (MCCS)
• Spectron Digital Patch Panel (optional)