Nortel Meridian Meridian 1 User manual

Intelligent peripheral equipment circuit cards for New Zealand Option 11 - Description and Instal-
Meridian 1
Intelligent peripheral equipment circuit
cards for New Zealand
Option 11 - Description and Installation
Document Number: Supplement to 553-3011-210
Document Release: Provisional 1.3
Date: July 1993
Year Publish FCC TM
© 1992, 1993
All rights reserved
Printed in Canada
Information is subject to change without notice. Northern Telecom 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.
SL-1 and Meridian 1 are trademarks of Northern Telecom.

iii
Intelligent peripheral equipment circuit cards for New Zealand Option 11 - Description and Instal-
Revision history
July 1993 Provisional, release 1.3.
March 1993 Provisional, release 1.2.
November 1992 Provisional, release 1.1. Updated to include software release information in
the "About this guide" section.
October 1992 Provisional, release 1.0.

v
Intelligent peripheral equipment circuit cards for New Zealand Option 11 - Description and Instal-
Contents
About this document . . . . . . . . . . . . . . . . . . . . . . . vii
NT5K93 Central office trunk circuit card . . . . . . . 1
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Technical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Trunk types description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Features description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
E&M tie trunk circuit card . . . . . . . . . . . . . . . . . . . . 13
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Technical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Trunk types description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Features description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Direct Dial Inward trunk card . . . . . . . . . . . . . . . . . 29
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Technical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Direct Dial Inward description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Features description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

vi Contents
Supplement to 553-3011-210 Provisional 1.3 July 1993
Flexible analog line circuit card . . . . . . . . . . . . . . 39
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Technical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

vii
Intelligent peripheral equipment circuit cards for New Zealand Option 11 - Description and Instal-
About this document
This document is a Supplement to the Option 11 Installation guide
(553-3011-210). It describes the functions and applications of the following
circuit cards that are available for use in New Zealand:
• NT5K18BA Central Office Trunk card
• NT5K19BA E&M Tie Trunk card
• NT5K17BA Direct Dial Inward trunk card
• NT5K02LB Flexible Analog line card.
The above cards were introduced as part of the Phase 7C software program.
They will go up one vintage with the introduction of Phase 8B software.

Page 1 of 44
Intelligent peripheral equipment circuit cards for New Zealand Option 11 - Description and Instal-
12
NT5K93 Central office trunk circuit card
Functional description
The NT5K18BA Central Office trunk card provides the interface between the
Option 11 system and up to eight analog Central Office (CO) trunks. It can
be installed in slots 1-9 in the main cabinet and in any slot in the expansion
cabinet.
Trunk types supported
The Central office trunk card has eight identical units. The trunk type of each
unit is configured independently in the trunk data block (LD 14) as one of the
following:
•Central office - ground start
•Central office - loop start
The NT5K18BA central office card also supports Direct Inward System
Access (DISA).
Common features
The NT5K18BA Central office trunk card:
•allows trunk type to be configured on a per unit basis
•provides disabling of individual units or the entire card through
software
•indicates self-test status during an automatic or manual self-test
•converts transmission signals from analog-to-digital and from
digital-to-analog

Page 2 of 44 NT5K93 Central office trunk circuit card
Supplement to 553-3011-210 Provisional 1.3 July 1993
• provides complex terminating impedance in compliance with
regulatory New Zealand standards
• providescomplexbalanceimpedanceincompliancewithregulatory
New Zealand standards.
Physical description
Measurements
Each NT5K18BA Central office trunk card measures as follows:
Switch settings
There are no option settings on the NT5K18BA Central office trunk card. All
settings are configured in software.
Connections
The NT5K18BA Central office trunk card has eight units. Each trunk unit on
the card connects to the backplane through an 80-pin connector. The
backplaneiscabledtotheinput/output(I/O)panel,andtheI/Opaneliscabled
to the cross-connect terminal. At the cross-connect terminal, each unit
connects to external apparatus by tip and ring leads.
Hardware installation
Table 1 provides cross connect information for the NT5K18BA Central
Office trunk card.
Height: 318 mm (12.5 in.)
Depth: 254 mm (10 in.)

NT5K93 Central office trunk circuit card Page 3 of 44
Intelligent peripheral equipment circuit cards for New Zealand Option 11 - Description and Instal-
Table 1
NT5K18BA Central OfficeTrunk Card pair terminations
Lead Pins Pair color Unit number
T0
R0 26
1W-BL BL-W Unit 0
27
2W-O O-W
T1
R1 28 3W-G G-W Unit 1
29
4W-BR BR-W
T2
R2 30 5W-S S-W Unit 2
31
6R-BL BL-R
T3
R3 32 7R-O O-R Unit 3
33
8R-G G-R
T4
R4 34 9R-BR
BR-R Unit 4
35
10 R-S S-R
T5
R5 36 11 BK-BL BL-BK Unit 5
37
12 BK-O O-BK
T6
R6 38 13 BK-G G-BK Unit 6
39
14 BK-BR BR-BK
T7
R7 40 15 BK-S S-BK Unit 7
41
16 Y-BL BL-Y

Page 4 of 44 NT5K93 Central office trunk circuit card
Supplement to 553-3011-210 Provisional 1.3 July 1993
Self-test
When the card is installed, the red Light Emitting Diode (LED) on the
faceplate flashes as the self-test runs. If the self-test completes successfully,
the card is automatically enabled (if it has been configured in software) and
the LED goes out. If the self-test fails, the LED will remain lit. The LED will
also remain lit if one or more units on the card become disabled while the card
is operating.
Trunk configuration
Route Data Block
Each trunk unit on the NT5K18BA central office trunk card is attached to a
route with an associated route data block. Trunk timers are configured on a
route basis.
Note: All prompts are defaulted except for those noted in Table 2.
Default values are shown in brackets.

NT5K93 Central office trunk circuit card Page 5 of 44
Intelligent peripheral equipment circuit cards for New Zealand Option 11 - Description and Instal-
Table 2
LD 16 Route Data Block
Trunk Data Block
Use overlay 14 to configure each of the trunk units on the NT5K18BA central
office trunk. Default values are shown in brackets in Table 3.
Prompt Response Comments
REQ NEW
TYPE RDB Define a new Route Data Block
CUST 0-99 Enter customer number
ROUT 0-127 Enter route number
TKTP COT Define trunk type as central office
ICOG IAO Incoming and Outgoing trunk
CNTL YES Change a trunk timer
TIMER ICF 128
OGF 896
EOD 3072
DSI 4992
NRD 4992
ODT 3840
RGV 128
GTO 896
GTI 896
Incoming Flash Timer = 128 ms
Outgoing Flash Timer = 896 ms
End of Dial Timer (Digipulse) = 3072
ms
Disconnect Supervision Timer = 4992
ms
No Ringing Detector Change Timer =
4992 ms
End of Dial Timer (Digitone) = 3840
ms
Ring Validation Timer = 128 ms
Guard Timer Outgoing = 896 ms
Guard Timer Incoming = 896 ms
CDR YES Call Detail Recording allowed

Page 6 of 44 NT5K93 Central office trunk circuit card
Supplement to 553-3011-210 Provisional 1.3 July 1993
Table 3
LD 14 Route Data Block
Note: This prompt is required only for the first unit defined on each
NT5K18BA card.
Technical description
Power requirements
Table 4 provides the power requirements for the NT5K18BA Central office
trunk card.
Prompt Response Comments
REQ NEW Define a new trunk unit
TYPE COT Central Office Trunk
TN CC UU Terminal number of the unit in Op-
tion 11 format:
Card number, Unit number
XTRK
(see note) XCOT Type is IPE COT
CDEN (8D) Card density is 8D (default)
SIGL LOP Loop Start signalling
CLS SHL, (LOL)
DTN, (DIP)
BAT, (XBAT)
Attenuation Pads In, (Out)
Digitone signalling, (Digipulse)
Battery supervision enabled, (dis-
abled)

NT5K93 Central office trunk circuit card Page 7 of 44
Intelligent peripheral equipment circuit cards for New Zealand Option 11 - Description and Instal-
Table 4
NT5K18BA Power requirements
Note 1: Analog circuitry is powered with +/- 12V generated from
+/- 15V.
Note 2: 8.5V is regulated to provide 5V.
Environmental specifications
Table 5 lists the environmental specifications of the NT5K18BA Central
office trunk card.
Table 5Table 1-5
NT5K18BA Environmental specifications
Pad switching
Loss values for the NT5K18BA Central office trunk card are given in Table 6.
Voltage Active current
+ 15.0 V dc (See note 1) 330 ma
+ 8.5 V dc (see note 2) 70 ma
- 48.0 V dc 30 ma
+ 5.0 V dc 250 ma
Parameter Specifications
Operating temperature 0 to 50 degrees C, ambient
Operating humidity 5 to 95 % RH (non-condensing)
Storage temperature - 40 to + 70 degrees C

Page 8 of 44 NT5K93 Central office trunk circuit card
Supplement to 553-3011-210 Provisional 1.3 July 1993
Table 6T
NT5K18BA loss values
Trunk types description
Each NT5K18BA Central office trunk card unit is capable of operating as
one of the following:
• Central office - Ground Start
• Central office - Loop Start
Ground start operation
Ground start operation is configured in software and implemented through
software download messages.
Idle State
In the idle state, a ringing detector is connected across the tip and ring leads.
The capacitance between the tip and ring leads is 1.8 µ F with a resistance
greater than 5 k Ω . The central office applies -50V to the ring wire, while the
tip wire is open circuit.
Call placed by Option 11
The Option 11 places a call by establishing a dc path between the tip and ring
leads and applying ground to the ring wire. The central office acknowledges
by applying ground to the tip wire and returning dial tone. When dial tone is
received, the Option 11 removes ground from the ring lead.
Dialling
The Option 11 sends digits in the form of loop disconnect signalling or Dual
Tone Multi-frequency (DTMF) digits.
Answer
Whenthecalledpartyanswers,the central officereversespolarity on theline.
The Option 11 interprets the polarity reversal as an answer signal.
Central office line
loss Analog to Digital
loss Digital to Analog loss
0 to 3 dB -6 dB 0 dB
3 to 6 dB -8 dB -3 dB

NT5K93 Central office trunk circuit card Page 9 of 44
Intelligent peripheral equipment circuit cards for New Zealand Option 11 - Description and Instal-
Call placed by central office
Fastguard signal
Before applying ringing to the Option 11, the central office sends a Fastguard
signal (battery reversal) that is used to busy a trunk circuit against outgoing
calls. The NT5K18BA trunk card, however, can not detect battery reversal
in the idle state.
Ringing
The central office applies ringing to the ring wire and -50V dc to the tip wire.
The Option 11 ringing detector trips to indicate an incoming call.
Answer
The Option 11 answers the call by placing a loop between the tip and ring
leads. The central office responds by removing the ringing and reversing
battery on the tip and ring leads.
Central office disconnect
The central office sends a disconnect signal by returning to the polarity of the
idle state and removing the potential from the tip lead. The Meridian 1
responds by removing the dc loop between the tip and ring leads.
Option 11 disconnect
The Option 11 disconnects the call by removing the dc loop between the tip
and ring leads. The central office responds by returning to the polarity of the
idle state and removing the potential from the tip lead.
Loop start operation
Loop start operation is configured in software and is implemented in the card
through software download messages.
Idle state
In the idle state, a ringing detector is connected across the tip and ring leads.
The capacitance between the tip and ring leads is 1.8 µ F with a resistance
greater than 5 k Ω . The central office applies -50V to the ring wire and
ground to the tip wire.
Call placed by Option 11
To place a call, the Option 11 places a low resistance loop across the tip and
ring leads.

Page 10 of 44 NT5K93 Central office trunk circuit card
Supplement to 553-3011-210 Provisional 1.3 July 1993
Dialling
The Option 11 sends digits in the form of loop disconnect signalling or Dual
Tone Multi-frequency (DTMF) digits.
Answer
Whenthe called partyanswers,the central officereversespolarity on theline.
The Option 11 interprets the polarity reversal as an answer signal.
Call placed by central office
Fastguard signal
Before applying ringing to the Option 11, the central office sends a Fastguard
signal (battery reversal) that is used to busy a trunk circuit against outgoing
calls. The NT5K18BA trunk card, however, can not detect battery reversal
in the idle state.
Ringing
The central office applies ringing to the ring wire and -50V dc to the tip wire.
The Option 11 ringing detector trips to indicate an incoming call.
Answer
The Option 11 answers the call by placing a loop between the tip and ring
leads. The central office responds by removing the ringing and reversing
battery on the tip and ring leads.
Call disconnect
Option 11 disconnect
The Option 11 disconnects the call by removing the dc loop between the tip
and ring leads. The central office responds by returning to the polarity of the
idle state.
Central office disconnect—outgoing call from Option 11
The central office sends a disconnect signal by reversing the polarity on the
tip and ring leads The Option 11 responds by releasing the call.
Central office disconnect—incoming call from central office
The central office disconnects the call by sending a clear forward signal,
which is an 800 to 1100 ms break on the tip or ring wires. The clear forward
signal is sent only on incoming calls to the Option 11 and may not always be
provided. On receipt of the signal, the Option 11 returns to the idle state.

NT5K93 Central office trunk circuit card Page 11 of 44
Intelligent peripheral equipment circuit cards for New Zealand Option 11 - Description and Instal-
Features description
Battery supervision
Battery supervision, rather than Periodic Pulse Metering (PPM), is used on
the NT5K18BA trunk card to support Call Detail Recording (CDR). Polarity
detectors on the card monitor battery reversals at the start and end of calls.
Messages from the polarity detectors are used by software to start and end the
CDR timer.
Battery supervision is configured in overlay 14 by setting the class of service
prompt to BAT.
Inverted dialling
In New Zealand, digipulse signalling follows a “10- n ” system, where n
represents the digit dialed. Inverted dialling is illustrated in Table 1-7.
Table 7
Inverted dialling
Inverted dialling is configured in overlay 56 by setting the RVDL prompt
to 1.
Digit dialed Digit sent to central office
0 10
1 9
2 8
3 7
4 6
5 5
6 4
7 3
8 2
9 1

Page 13 of 44
Intelligent peripheral equipment circuit cards for New Zealand Option 11 - Description and Instal-
28
E&M tie trunk circuit card
Functional description
The NT5K19BA E&M Tie trunk card provides the interface between the
Option 11 system and up to four analog trunks. It can be installed in slots 1-9
in the main cabinet and in any slot in the expansion cabinet.
The NT5K19BA E&M Tie trunk card supports four analog trunks. Each
trunk circuit can be individually configured as:
• 4-wire E&M Type 1 tie trunk (DC5)
• Recorded Announcement trunk (RAN)
• Music trunk (MUS)
• Paging trunk (PAG)
Common features
The NT5K19BA E&M Tie trunk card:
• converts transmission signals from analog-to-digital and from
digital-to-analog
• provides software selectable A-law or µ -law operation
• enables and disables individual units or the entire card under
software control
• provides outpulsing on the card. Make break ratios are defined in
software and downloaded during power up and by software
commands.
• provides indication of card status on the faceplate LED

Page 14 of 44 E&M tie trunk circuit card
Supplement to 553-3011-210 Provisional 1.3 July 1993
•allows trunk type to be configured on a per unit basis in software
•provides termination against 600 ohms for 4-wire DC5 E&M trunk
circuits
•provides flexible transmission for various loss plans
•provides paging (PAG), recorded announcement (RAN), and Music
(MUS) interfaces.
Physical description
Switch settings
There are no option switches on the NT5K19BA E&M Tie trunk card. All
settings are configured in software.
Connections
The NT5K19BA E&M Tie trunk card has four units. Each unit connects to
the shelf backplane through an 80-pin connector. The backplane is cabled to
the input/output (I/O) panel which is then cabled to the cross-connect
terminal. At the cross-connect terminal, each unit connects to external
apparatus by tip and ring leads.
Hardware installation
Tables 8 to 10 show cross connect terminations for the NT5K19BA E&M
trunk card.

E&M tie trunk circuit card Page 15 of 44
Intelligent peripheral equipment circuit cards for New Zealand Option 11 - Description and Instal-
Table 8
NT5K19BA E&M 2-Wire Paging trunk connections
Lead designations Pins Pair color Unit number
T0
R0 27
2W-O O-W Unit 0
A
PG 29 4W-BR BR-W
T1
R1 31 6R-BL BL-R Unit 1
A
PG 33 8R-G G-R
T2
R2 35 10 R-S S-R Unit 2
A
PG 37 12 BK-O O-BK
T3
R3 39 14 BK-BR BR-BK Unit 3
A
PG 41 16 Y-BL BL-Y

Page 16 of 44 E&M tie trunk circuit card
Supplement to 553-3011-210 Provisional 1.3 July 1993
Table 9
NT5K19BA E&M 2-wire Recorded Announcement trunk connections
Lead designations Pins Pair color Unit number
T0
R0 26
1W-BL BL-W Unit 0
SIG B
SIG A 29 4W-BR BR-W
T1
R1 30 5W-S S-W Unit 1
SIG B
SIG A 33 8R-G G-R
T2
R2 34 9R-BR BR-R Unit 2
SIG B
SIG A 37 12 BK-O O-BK
T3
R3 38 13 BK-G G-BK Unit 3
SIG B
SIG A 41 16 Y-BL BL-Y