Main
System options
21,51,61,71
System overview
Revision history
About this document
References
Page
Contents
Meridian 1
System architecture
9
Product description 37
List of terms
Meridian
1
Introduction
The Meridian 1 commitment
Product compatibility
System reliability
Modular equipment packaging
&
Advanced administration
maintenance
Page
Ease
of installation
Ease of expansion
Advanced features
ACD
ESN
CDR
ISDN
Meridian Mail Voice Messaging
Page
Page
System architecture
Meridian
1 modular architecture
Control
Switching
Software architecture
Firmware
Software
Office Data
Resident Programs
Non-Resident Programs
Page
Hardware architecture
Common equipment
Page
Page
Page
Network equipment
Page
Page
20 System architecture Figure 2 Single and dual loop configurations
Page
22 System architecture Figure 3 NT8D37 lntellegent Peripheral Module segmentation
segment
Page
Page
Page
Page
System architecture 27
Figure 7 8 segments per Superloop configuration
Page
Page
Page
Peripheral Equipment
Power equipment
Page
Page
Page
Page
Product description
Universal Equipment Modules
Page
CPU module (NT8D34)
Page
CPU/Network module
-(NT6D39)
Page
Network module (NT8D35)
Page
Common/Peripheral Equipment modute
(NT8Dli)
Page
Page
Intelligent Peripheral Equipment module (NT8D37)
@ LJ
II
.
Peripheral Equipment module (NT8D13)
It-l
II
5
Iill
211
Remote Peripheral Equipment Carrier module (NT8D47)
Page
Page
Meridian Mail module (NT6D44)
56 Product description Figure 21 Meridian Mail module
MERIDIAN MAIL MODULE
-typical configuration
NT6D44
smdr /
corrputer
/I
&h
Pedestal (NT8D27AB)
(NT7DQO)
Top cap
.-
Expansion kit (NT8D49)
Page
Page
Meridian 1 system options
Meridian 1 system option 21A
208
Note:
Additional network loops require expansion modules (Intelligent PE or Peripheral Equipment Modules).
Meridian 1 system option
21
Page
I
r
Equipment
1111
Page
66 Product description
Meridian 1 System option-61
The Meridian 1 System option 61 package includes 2 CPU/Network
2 Conference and TDS cards, 1 SuperLoop Network card, 2
~g&~y~~~ ................. ........ I-~:::~~
::::::::i:;:::i:
. .
~CPl-
r ........
Page
Page
Product description 69 Table 5 System option 71 specifications
Power Distribution Unit and Contains
Page
List
of
terms
Page
cc
co
Page
Page
Page
Page
Page
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Page
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Page
System overview
nit
northern tolocom
System options 21,51,6.1,71
Installation planning
Page
S-1
Page
Preface
Notice
Page
Page
Page
Related documentatiori
Page
Planning activities
Researching the requirements
7
Planning the site
39 ---
Preparing for delivery
55
Preparing for installation
59
Page
Planning activities
The installation outline
Page
Hold
The Milestone chart
tasks.
Page
Researching the requirements
General requirements
The equipment room environment
q
Table 4 shows the SC-1 operating en?rironment
In addition to proper operating
temperaturq
Environmental factors
Electromagnetic Interference
(EMI)
Dust
Air conditioning requirements
El
Page
Sk-l system power options
-
DC-powered SL-1 systems
AC-powered SL-1 systems-
Commercial AC power source
Input power specifications
The following tables provide input system power specifications as required for
to 500
50
276
Grounding
Commercial power and grounding requirements
Building ground requirements
Grounding guidelines
---
AC service panel
I
J
~~~~l~~ing
I I I I I I I
Page
26 Researching the requirements
Figure 2 Dedicated transformer in non-isolated ground system
Installation planning 553-3001-120
(Receptacle)
-Ad
-
1,
___L__
Page
Page
3:
20
30
Page
Page
Auxiliary power requirements
CabHng
Page
Cable access requirerients
Fire protection and safety precautions
q
Page
Page
Planning the site
Selecting a site
Developing the site
The equipment room
Equipment room accessories
The floor plan
The weight and dimgnsions of the SL-1 system should also be considered:
~qg~~w , /
Page
Page
Floor loading estimates
Page
Page
Figure 8 Sample building cable plan
Installation planning
5!53-3001-120
Wire routing
Termination points
Page
Page
Preparing for delivery
Considerations
Page
Equipment handling precautions
Page
Preparing for installation
Work orders
Equipment room floor plans
Cabling plan
The installation plan
Manuals
Preinstallation inspections
Equipment room inspections
General inspections
Reserve power inspections
Page
Installation planning
mt
northern talactlm
System engineering
Meridian
northern talaeam
I
Page
System engineering
Page
General information
Page
System organization and capacities
Definitions
27
Provisioning guidelines
41 Step 1
43
Page
68
71
77
Tables
System organization and capacities
Page
Page
Page
Page
Universal Equipment Modtiles
Page
Page
Page
l-1 CPU/Network UEM
(NTGD39AAIDC) Table 1-3 Identification of CPU/Network UEM (NTGD39AAIDC) Unit Number-required
18
~6
Page
l-l CPU UEM
(NT8D34AAIDC) Table l-4 Identification of Single CPU UEM Unit Number- required
Page
Network UEM
(NT8D%AA/DC) Table l-5 Identification of Network UEM hit Number_ required
s8
16
~8
Page
Intelligent Peripheral
UEM (IPE)
&ipment
(NT8D37AAlDC)
Table l-6 Identification of IPE UEM Unit Number required
Page
Page
Page
RPE UEM
(NTBD47AtiDC) Table l-9 identification of RPE UEM Unit Number Number per UEM
perJtPE loop
Page
1-22 System organization
II--
III-I
InterGroup UEM (NT8D36AA)
IGSO
I
System capacities
Page
Definitions
General rules
Page
Page
2-4 Definitions
7Y
Traffic distribution
illustrated in
The traffic distribution in the SL- 1 is
Figure 2-1. This illustration is valid when considering individual customer or system traffic.
Page
Equipment utilization
Network loop traffic
Partitioning
Network loop assigning
PE card distribution
Intelligent Peripheral Equipment
card slot
(.IPE)
assigning Card slot
priority
Page
Assigning cards
Terminal number assigning
Ongoing assignment plan
Cutover study
Threshold study
Equipment relief
Assignment records
Page
Provisioning guidelines
Page
Step
1:
Define and forecast growth
Page
Step 2:
Page
Provisioning guidelines 3-7
Table 3-2 Example of cc&t averaging when drily trunk
c&t
are known
Manual calculation of
c&t
CCS/T
Line
CCS/r
This method is used for each trunk group
inIhe
Table 3-3 Estimated load per trunk (ccs)
Default method
Page
Step 3:
Calculate number of trunks required
Trunks required
Step 4:
Calculate
Line
Line, trunk, and console load
_
load
Step 5:
Calculate DTR requirements
Model 1
Model 2
Model 3
Model 4
Detailed calculation: method 1
Detailed calculation: method
Step 6:
Calculate total system load
Step 7:
Calculate number of superloops required
Non-blocking configuration with Superloop Network
Blocking configuration with Superloop Network
DTI/PRI
Enhanced Network Cards (QPC414)
cards
Page
Step 8:
Calculate number of Network groups required
Step
UEMs
Calculate number of PE
Step
9:
Calculate number of PE cards required
10:
required
Step 11:
Step 13:
Page
Feature calculations
Calculations with Authorization Code
Calculations with Centralized Attendaht Service (CAS)
Calculations with Charge Account for CDR
Calculations with Direct inward System Access (DISA)
Calculations with Integrated Message Service (IMS)
Page
Worksheets
Worksheets 5-l
Page
Page
Page
Page
Page
Worksheet C continued
12960
Digitone
Trunks are used.
Page
Page
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Output
Page
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Page
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Card distribution
WorksheetN
Loop number
TOTAL
Page
Page
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Tables
Tables
6-1
6-2 Tables Table 6-1 Trunk traffic (Poisson 1% blocking)
T
;or
trunl
Page
Page
Page
receivers digitone line! (CCS) receivers digitohe lines
Note:
Page
Number of
Maximum
digitone
Digitone Number of
Maximum
0 0
10 11 12 13
15 16 17 18 19
Page
Page
I
Number of digitone Number of digitone
Page
Network loops Tone and Digit Conference loops required at 2 years Switch required loops required
I
ports
System options 21,51,61,71
System engineering
Page
Page
Generic Xl 1
Memory calculations
Page
General Memory description 3
Memory calculations
9
List of terms 163
Page
General
Page
Memory description
Page
Memory Generic 711 (S
and
MS)
Memory Generics 811 and 911 (N and XN)
Memory Generics 1011 (ST)
Templates
Page
Page
Memory calculations
Package dependencies
Page
Page
Page
OF-IF
continued
Page
Program Version Storage in KSComments
continued
0.64
continued
Version Storage iu K
1.54
continued
TAD 711 R4-5 0.71
911
continued
Page
Page
Page
Page
Page
Program Version
Page
Page
Page
Page
Version Storage in KS Comments
continued
Memory
continued
Program Version Storage in KSComments
1.11
continued
Page
Page
BQE
Version Storage in KS
continued
VTRF
continued
NCOS
2.90
continued
ssc
711,811,911,1011
continued
911 R14 2.98
Page
Storage in K
(lK
= 1024 words)
Page
Page
Page
Page
(1K
1024 words) MUS 711
continued
Page
Page
GRP
continued
Page
Page
Page
Page
Page
Program Version Storage in KS Comments
PQm
continued
OHQ
(1K = 1624 words)
continued
SNR
continued
CommentsStorage in K
continued
Page
Page
Page
Storage in K
continued
Page
Page
Page
Page
Page
Page
(1K
1024 words) Yl-DS
continued
Page
UK = 1024 words)
continued
Page
Page
Page
Page
FTC
continued
Comm+ts
continued
Page
continued
Page
Version Storage in Ks Comments (1K = 1024 words) Overflow (base) (Note 3)
continued
(1K = 1024 words) Total of All Optional Packages (Note 4)
711 R4
continued
(1K = 1024 words) Storage in K
Overflow (base + all optional packages). (Note 4)
Page
Page
Version Storage in Words
continued
Page
Page
539154 1
continued
Table
continued
Page
Page
Page
Page
data
BGD
continued
6x
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Page
Page
Page
Page
Page
Page
Page
(1)
(9)
Page
Page
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Page
Fixed amount of storage required for system operation.
For EACH of the following:
continued
Page
Page
-continued
Page
Page
Page
Page
Feature Version
continued
Page
Page
Page
Version Storage in Words
Page
Page
Page
I
In addition to the basic
line
block requirement, each feahue requires extra data space as follows:
Feature
R46
continued
2
R7-12
Feature
m-5
continued
R7-12 R13 R14-15
14
Page
In addition to the basic linebloclc, each fea@re requires extra data space as follows:
Page
Page
Page
140 Memory
calculations Speed Call Quick Reference Chart
Memory calculations
Page
Page
Page
Page
see
=
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
B+(Xx@+A))
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Generic Xl 1
Memory calculations
Page
Page
Power engineering
Page
Page
Page
Page
Reserve power 47
Engineering and configuration guidelines 57
Power conductors 69
List of terms 73
SL-1 system power overview
General information
AC or DC powering
I
M
I
m
Page
AC power system description
Input power specifications
Internal power distribution
/ /
Pedestal Power Distribution Unit (PDU)
Module to Module Harness
Module Power Distribution Unit (MPDU)
Module to Backplane Harness
AC Power Supplies
Output
External power distribution and ground connections .-_
-----H--s------------H--s------- 99
General notes for AC figures
Single column AC powered system
Multi-column AC powered system
Multi-row AC powered system
Extended systems
III
II
H
Page
DC power system description
19
Input
power specifications
I.
Internal power distribution
Pedestal Power Distribution Unit (PDU)
Page
Module to Module Harness
Module to Backplane Harness
DC Power Converters
Output v
Table 10 Ringing Generator Nl7W3AA Output VNA Output. F
output voutput A
Table 11 Common/Peripheral Equipment Converter output v
output A
Output VIVA
External power distributioh and grounckonnections
General notes for DC figures
Page
Figure 10 Multi-column distribution with NT6D52 and QBLl5
Page
Figure 12 Multi-column distribution with
I
QBLl2
customer power
120v
-tIIIII
11111
~~
System grounding
Single Point Ground
But,
Additional requirements
Isolated ground topology
Non-isolated ground topology
Operating power requirements
Introduction
Circuit pack power consumption
Page
i
Module power consumption
System power calculation guidelines
Wired-for method
208
As-equipped method
.-
Page
Page
Qtv
Page
Page
Thermal considerations
Page
Page
Reserve power
-- AC reserve power
sizing
Recommended UPS vendors and models
Page
Page
I1
Figure 14 AC reserve power configuration
DC reserve power
Page
Engineering and configuration guidelines
AC power architecture
^
Internal AC power equipment components
Page
Page
:
internal DC power equipment components.
Ringing Generator DC
(NT7D03AA)
Pedestal
(NT7DOSAA)
External DC Power equipment components
Page
Page
Commercial power and grounding requirements
Page
Page
Power conductors
Wire size calculation guidelines
The formula
Examples
Page
Page
Page
List of terms
Page
Page
Power engineering
Spares planning
Page
System options 21,5-l, 61,71
Spares planning
Page
General information
Page
Page
Page
Spares planning
Definitions and assumptions
Page
The turnaround timk for the return
&I
stock of a failed item is about two days from a centralized depot, (See Figure 2.)
Figure 2 Centralized depot service
Page
Calculating spares requirements
Page
Tables: NFT values
Page
Page
Page
Page
Page
Page
14 Tables: NFT values
Table 1 continued Stock quantity of spares
Spares planning 553-3001-l 53
Failure rates
Page
Page
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Page
/
Page
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Page
ist
Page
Q=l Q
QM-I-2
Page
N/A
Spares planning
nit
northarn talocom
System options
21,51,61,?1
Page
Equipment identification and ordering information
Page
Page
Page
Page
Common Equipment cards
Peripheral Equipment cards
-39
Station equipment
51
Cabling
71
Miscellaneous equipment
87
List of terms
91
General
Equipment packages
Conversion and expansion packages
Equipment availability
Special features
Product coding
Page
Page
Universal Equipment Modules and packaging
NT6D39DC
NT6D39AA,
CPU/Network Module
NT6D44AA, NT6D44DC Meridian Mail Module
NT8Dll
AC,
DC CE/PE Module
NT8D13AA, NT8D13DC Peripheral Equipment Module
NT8D34AA, NT8D34DC CPU Module
NT8D35AA, NT8D35DC Network Module
NT8D36AA Inter Group Module
NT8D37AA, NT8D37DC Intelligent PE Module
.: :
NT8D47AA, NT8D47DC Remote PE Module
NT8D49 Spacer Kit
NT8D55AA Universal Equipment Module cover
Universal Equipment Module side panel
Card cage assemblies
Top Cap
Pedestal
Page
Power and cooling equipment
A0367754 Top Cap Fan
NTSC03BJ Switched Mode Rectifier -48V/50A
_-
NT6D40AA Peripheral Equipment Power Supply DC
NT6D41AA Common Equipment Power Supply DC
NT6D52AA Switched Mode Rectifier -48W30A
NT6D53AA Junction Box
Power
NT6D5303 Logic Return Equalizer
NT7D0003 Fan and Sensor Panel
NT7D03AA Ringing Generator DC
NT7D04AA CE/PE Power Supply DC
NT7DlOAA Power Distribution Unit DC
NT7D12AA
Rectifier Rack
System option
System Monitor
NT7D15AA
NT7D17AC Fan Unit AC
NT7D17DC Fan Unit DC
NT8DOGAA
NT7D1201
Rectifier Baffle/Mounting Kit
NT8D21AA
Ringing Generator AC
NT8D22AB
System Monitor
NT8D29AA Common Equipment Power Supply AC
NT8D39AA Power Failure Transfer Unit
NT8D52AA Blower Unit
NT8D52DC Blower Unit
NT8D53AB Power Distribution Unit AC
NT8D53AD Power Distribution Unit
System option 21A
NT8D56AA Module Power Distribution Unit
NT8D56AB Module Power Distribution Unit
NT8D57AA Module Power Distribution Unit
NT8D62AA, NT8D62DC Temperature Sensor Panel
QBLI 2 Battery Distribution Box
QBLI 5 Power/Battery Distribution Box.
QCA13 DC Power Plant
QPCI 88 Battery Monitor
QRF12
-52 V Rectifier
Page
Common Equipment cards
NT8D04AA Super-loop Network
NT8D17AA Conference/lone and Digit Switch (TDS)
NT8Dl8AA
NetworWDigitone Receiver
NT8D19AA Memory/Peripheral Signaling
NT8D41AA Serial Data Interface paddle board (Dual Port)
NT8D68AA
Floppy Disk Unit
Multi Disk Unit
NT8D69AA
.-
j
QMM42 Security Data Cartridge .i
QPC43 Peripheral Signaling
QPC215 Segmented Bus Extender
QPC412 Intergroup Switch
QPC414 Network
QPC417 Junctor Board
QPC441 Three-Port Extender
QPC471 Clock Controller
PU
QPC477 Bus Terminating Unit
QPC513 Enhanced Serial Data
InterFace
QPC579
CPU Function
QPC581
QPC580 CPU Interface
Changeover and Memory Arbitrator
QPC584 Mass Storage Interface
QPC687 CPU with SDVRTC
QPC720 Primary Rate Interface
QPC742 Floppy Disk
Inte-rface
QPC757 D-Channel Handler Interface
QPC841 Four-Port Serial Data Interface
QPC939 Read-Only Memory
QPC940 Read-Only Memory
Peripheral Equipment cards
NT8DOl AD Controller-2
NT8DOl AC Controller-4
NT8D02AA Digital Line card
NT8D03AB Analog Line card
NT8DOSAB
Analog Message Waiting Line card
NT8D14AA Universal Trunk
NT8D15AA
E&M Trunk
NT8DlGAA
Digitone
Receiver
QPC62 1.5 Baud Converter
QPC65 Rernote Peripheral Switch
QPC66 2M Baud Converter
QPC67 Carrier Maintenance
QPC71 E&M/DX Signaling and Paging Trunk
QPC99
Carrier Interface
QPCI 92 Off-Premises Extension Line
QPC237 4-wire E&M/DX signaling trunk
QPC250 Release Link Trirnk
QPC297 Attendant Console Monitor
QPC422 Tone Detector
QPC430 Asynchronous Interface Line
QPC432 4-Port Data Line
QPC449 Loop Signaling Trunk
QPC450
CO/FX/VVATS
Trunk
QPC578 Integrated Services Digital Line
QPC594 16-Port 500/2500 Line
QPC723 RS-232 4-Port Interface Line
QPC789 16-Port 500/2500 Line (Message Waiting)
QPCSI 8 High-Speed Data Card
Station equipment
Meridian Modular Telephanes
Page
Page
Page
Page
Page
Page
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Page
M2000 series digital telephones
M3000Touchphone
NE-500/2500 telephone set
Ml250 and 2250 attendant consoles
Attendant administration overlay template
QMTI and QMT2 key/lamp expansion modules
QMT3 lamp field array module
.-
QMT4 handset module
data
QMT12 add-on data module
QMT21 high-speed
QMTI 5 amplified handset module
module
QKKI
handsfree remote powering kit
QKK3 automatic handsfree interface kit
QKK8 automatic handsfree interface kit
QKM13 light probe kit
Page
Meridian programmable data adapter .
Teledaptm
Page
Table 4 Station equipment replaceable items Equipment
Replaceable items Apparatus number
Page
Page
Cabling
IAE
NT7Dl
module-to-module power harness
Page
NT8D46AD System Monitbr SDI cable
board
NT8D46AG System Monitor to SDI paddle
cable
NT8D46AH System Monitor to MDF cable
NT8D46AJ System Monitor to UPS (Best) cable
NT8D46AP Extended System Monitor Serial Link cable
NT8D46AQ System Monitor to UPS (Exide) cable
NT8D46AS System Monitor inter-CPU cable
NT8D46AT System Monitor to QBLIS cable
NT8D46AU System Monitor to UPS (Alpha) cable
NT8D46AW System Monitor to QBL12 cable
NT8D46DC Air Probe harness DC
NT8D73 Inter-cabinet Network cable
NT8D74 Clock Controller to Inter Group cable
NT8D75 Clock Controller to Clock Controller cable
NT8D76 Intergroup Switch to Inter Group cable
NT8D77 FDI to FDU cable
NT8D78AA
CPU cable
NT8D79
to Clock Controller cable
NT8D80 CPU interface cable
cable
NT8D84AA SDI paddle board (dual. port) to
cable
NT8D85 Network to PE cable
NT8D86 Network to
cable-
NT8D90AF SDI multiple-port cable
NT8D88 Network to
NT8D87 Conference/TDS to music trunk cable
NT8D91
Network to Controller cable
NT8D95 SDI
NT8D93 SDI paddle board (dual port)
NT8D92AB Controller to
97AX
MWDF
PRllDTl to
NT8D99 CPU to Network cable
Echo Canceler to
NT9J94AB RPE to
NT9J93AD
cable
NT9J97
Intra-column Network cable
NT9J99
NT9J98
Intra-cabinet Network cable
QCADI 28 connector cable
QCAD274A AC power cord
Page
Miscellaneous equipment
Field Wiring Kit
Blank Faceplates
NT8D63AA Overhead Cable Tray Kit
Earthquake Bracing Kit
QRY551
Channel Service Unit
TELLABS 251 24-Channel Digital Echo Canceller
BIX Cross-Connect System
Page
Northern Telecom Publicatidns
Title and description Qrder number
List of terms
cc
co
Page
Page
Page
Page
Equipment identification and ordering information
Et
narthorn t~lacom
ti
MERIDIAN
northtzrn telecom
SERIES DIGITAL TELEPHONES
Page
Page
Page
Page
l
cl
. . 0
rl
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. .
rl
&51-~
...
.
cl
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Page
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COLLECT LOOP MAKEUP DATA AND CALCULATE EPL
Fig. 1006-l Junction Loss vs Cable Characteristic Impedance
Page
%.
Page
Page
northem tdaconl
MERIDIAN
INTEGRATED SERVICES NETWORK
SL-1%
SUMMARY OF TRANSMISSION PARAMETERS
Page
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provided.
Page
.:
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I+
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Analog line card description
Page
Page
Page
Page
Page
General information
Application
-
Functional
Technical summary
Analog line interface
Message channel noise
(dBmC)
Power requirements
NT8D03AB
Foreign and surge voltage protections
.-
Overload level
Page
Options 21,51,61,71
n#
Analog line card description
nartharn
tolocom
Et
northorn fdocom
Meridian1
Page
SL-1
Digital line card description-
Page
Page
Page
Page
Page
General information
Requirements
Page
Description
. Meridian SL-1 data block
Physical
Functional
Configuration
Power supply to digital telephones
mA)l
I
Page
r%t
Page
Page
Analog message waiting line card description
Page
Page
Page
Page
Page
General information
2 General information
Analog message waiting line card description 553-3001-l 63
Application
Page
Functional
Page
Technical summary
Analog line interface
Message channel noise-
Power requirements
NT8DOSAB
Foreign and surge voltage protections
Overload level
Analog message waiting line card description
rEt
nartharn talaccrm
MERIDIAN SL-1.
Page
Page
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Page
+
Page
Page
(6)
PRACTICE
553-2201-184
---------------
(=I---------
1
d-ky
Page
PRACTICE 553-2201-184
,
Page 4-5
n
I
I-
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Page
Page
rut
northern tukcom
Line circuit pack. Changes are indicated by margin arrows.
Message Waiting
16-Port
Page
Page
Page
.,:
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_-
Page
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l+l
i
Diagram of a double density 50012500 Line Pack
Block
T
QPClg2/292
i--------------------------------
Fig. 5-2 Block Diagram of
_----------_-__---~_-------~~~~~~~~ 1
5-8
Pege
Line Pack
QPC594/729/789
nit
northern ttdocom
MERIDIAN
SL-I..
reference information on digital telephones. Changes are indicated by arrows in the margin.