Nortel Meridian 1 Option 11C Compact Technical Reference Manual
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Nortel Meridian 1 Option 11C Compact Technical Reference Manual

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Meridian 1
Option 11C Compact
Technical Reference Guide
Document Number: 553-3121-100
Document Release: Standard 2.0
Date: September, 1998
Year Publish FCC TM
This Nortel documentation is protected by copyright. It may not be copied in any form or medium except
puruant to the Nortel License to Copy Documentation ("License"). If a License has been purchased, it will
be enclosed with this copy of Nortel documents.
© 1997, 1998
All rights reserved
Printed in Canada
Information is subject to change without notice. Nortel 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.
Meridian 1, Option 11C and Compact are trademarks of Nortel (Northern Telecom).
Meridian 1 Option 11C Compact
Technical Reference Guide

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  • Page 1 Date: September, 1998 Year Publish FCC TM This Nortel documentation is protected by copyright. It may not be copied in any form or medium except puruant to the Nortel License to Copy Documentation ("License"). If a License has been purchased, it will be enclosed with this copy of Nortel documents.
  • Page 2 Revision history September 1998 Release 2.0, Standard November, 1997 Release 1.0, Standard Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 3 553-3121-100 Standard 2.0 September 1998...

  • Page 4: Table Of Contents

    Idle Channel Noise ........Meridian 1 Option 11C Compact...
  • Page 5 Contents Impulse Noise ......... Total distortion including quantization distortion .
  • Page 6 Graphics Module ........Meridian 1 Option 11C Compact...
  • Page 7 Contents Chapter 9 — NTMW05 Digital Line Card ..93 Description ..........Physical .
  • Page 8 D-Channel Interface ........Meridian 1 Option 11C Compact...
  • Page 9 Contents Clock controller interface ....... . Mode of operation ........Chapter 14 —...

  • Page 10: About This Guide

    About this guide This Technical reference guide contains detailed technical information about the Meridian 1 Option 11C Compact system. It includes such things as: • circuit cards information • spares planning • SDI ports information • transmission parameters •...
  • Page 11 viii About this guide 553-3121-100 Standard 2.0 September 1998...

  • Page 12: Chapter 1 - Provisioning

    Provisioning a new system Provisioning a new system consists of: • Defining and forecasting growth. • Calculating number of trunks required. • Calculating number of lines required. • Assigning equipment and preparing an equipment summary. Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 13: Forecasting Trunk And Line Growth

    Page 2 of 136 Chapter 1 — Provisioning Forecasting trunk and line growth The first step in provisioning a new system is to forecast the number of trunks and lines required at two-year and five-year intervals. The number of trunks and lines required when the system is placed in service (cutover) is determined by the customer.

  • Page 14: Worksheet A: Trunk Forecast

    = Analog lines available Note: Each NTMW07 Trunk/Line card is provides four trunk TNs, four analog line TNs and one power fail transfer circuit. See "Chapter 11 —NTMW07 Trunk/Line Card" for details. Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 15: Worksheet B: Line Forecast

    Page 4 of 136 Chapter 1 — Provisioning Worksheet B: Line forecast Customer: ________________________________ Date: _________________ Digital Line TN Forecast Worksheet_ Quantity Quantity Quantity Digital Telephone Line TNs at Cutover in 2 years in 5 years Attendant Console TNs (including TNs for power, see Note ) See Note.

  • Page 16: Provisioning Conference Channels

    Assign the equipment. The equipment summary may have to be updated as a result of assignment procedures. Use the finalized equipment summary (Worksheet C) to order the equipment for the system. Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 17: Worksheet C: System Cabinet Requirements

    Page 6 of 136 Chapter 1 — Provisioning Worksheet C: System cabinet requirements Customer:________________________________________ Date: ______________ Prepare one worksheet for the system at cutover, 2-year, and 5-year intervals. PE Card Calculations Worksheet Cutover 2 years 5 years Number of NTMW05 Digital Line cards Number of NTMW06 Analog Line cards Number of NTMW07 Trunk/Line cards Number of NTMW04 DTI cards (See Note )

  • Page 18: List The Card Slot Assignments

    Figure 1 Card slot assignments in Main Cabinet NTMW04, NTMW05, NTMW06, NTMW07 Main Cabinet 1&2 3&4 5&6 Card Card Card NTMW02 NTMW01 V Mail NTMW11 Power Supply Card Card Card MMail NTMW05, NTMW06 Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 19 Page 8 of 136 Chapter 1 — Provisioning Figure 2 Card slot assignments in Expansion Cabinet NTMW05, NTMW06, NTMW07 Expansion Cabinet 11&12 13&14 15&16 Card Card Card NTMW10 NTMW11 Empty Fiber Power Supply Slot Receiver Card Card Card NTMW05, NTMW06 553-3121-100 Standard 2.0 September 1998...

  • Page 20: Worksheet D: Card Slot Assignments

    Card Assignment Card Assignment Slot Slot Card Type Card Type Number Number 1 & 2 11 & 12 3 & 4 13 & 14 5 & 6 15 & 16 Mail Not used Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 21 Page 10 of 136 Chapter 1 — Provisioning 553-3121-100 Standard 2.0 September 1998...

  • Page 22: Chapter 2 - Transmission Parameters

    Page 11 of 136 Chapter 2 — Transmission parameters Introduction The Meridian 1 Option 11C Compact system uses µ-Law companding to convert signals from analog to digital and from digital to analog. Transmission characteristics are given in this chapter. Except where indicated...
  • Page 23 Page 12 of 136 Chapter 2 — Transmission parameters The loss plan strategy for PE combines electrical loss with terminal acoustic parameters for optimum transmission performance. For this reason, some connections have asymmetrical loss in order to conform with network loss plans.
  • Page 24 Insertion Loss from PE Ports to PE Ports (measured in dB) PE Ports 500/2500 Line Digital 4 Wire (ESN) CO/FX/WATS Line E&M Trunk Loop Tie Trunk PE Ports 500/2500 Line Digital Line CO/FX/WATS Loop Tie Trunk -3.5 -0.5 Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 25 Page 14 of 136 Chapter 2 — Transmission parameters Table 2 Insertion Loss Digital Ports To PE Ports (measured in dB) PE Ports 500/2500 Line Digital CO/FX/WATS Line Loop Tie Trunk Digital Ports Tie Trunk -2.5 Satellite Tie Trunk (See Note -0.5 -0.5...
  • Page 26 (class 5). Note 3: The 1.5Mb PRI and DTI have digital pads which are controlled by Option 11C Compact software to provide the insertion loss given in Table Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 27 Page 16 of 136 Chapter 2 — Transmission parameters Table 3 Electrical loss Digital ports to Digital ports (measured in dB) Digital ports Tie Trunk Satellite Tie CO/FX/WATS Toll Office Primary Rate Trunk Loop Tie Trunk Interface Trunk (PRI) (See Note (See Note...

  • Page 28: Insertion Loss Limits

    Line — Line +1.0 Line — Analog Trunk + 0.7 Line — Digital Trunk +0.7 Analog Trunk — Analog Trunk +0.7 Analog Trunk — Digital Trunk +0.7 Digital Trunk — Digital Trunk +0.2 Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 29 Page 18 of 136 Chapter 2 — Transmission parameters Frequency Response Frequency Response (Attenuation Distortion) at a given frequency is the difference between the loss at the test frequency and the loss at the reference frequency. Table 5 gives the frequency response for 2 wire interfaces. Table 5 Frequency Response 2 Wire Interface...

  • Page 30: Input Impedance And Balance Impedance

    DID/DOD/LOOP 600/900 600/3COM TIE Trunk (3 COM is the EIA termination of 350 + 1000//0.21 µ F) C.O.Trunk 600/900 600/3COM (3 COM is the EIA termination of 350 + 1000//0.21 µ F) Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 31: Return Loss

    Page 20 of 136 Chapter 2 — Transmission parameters Return Loss The return loss measures how closely the input impedance matches the required impedance (source impedance). Return loss at an impedance discontinuity in a transmission path is the ratio (in dB) of the power level of an incident signal to the power level of the resulting reflected signal.

  • Page 32: Transhybrid Loss

    The values for the transhybrid (return) loss of a 2 wire interface when terminated in its balance impedance is given in Table 8. Reference Level is 0 dBmO Table 8 Transhybrid loss Input Frequency Transhybrid Return Loss (Hz) (dB) 2500 3400 Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 33: Idle Channel Noise

    Page 22 of 136 Chapter 2 — Transmission parameters Idle Channel Noise Idle channel noise is noise in the absence of a signal. It is the short-term average absolute noise power, measured with C-message weighting. The 3 k Hz flat measurement uses equal weighting for all frequencies in the 20-3000 Hz range.
  • Page 34 Table 12. Reference frequency: • 700 - 1100 Hz • 1024 Hz Table 12 Variation of gain versus level method 1 Input Level Gain Variation dBm0 -10 to +3 +/-0.5 Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 35 Page 24 of 136 Chapter 2 — Transmission parameters Method 2 With a sine wave in the frequency range of 700-1100 Hz applied to the input port of any interface, the variation of the gain versus level at the output port meets the limits given in Table 13.

  • Page 36: Total Distortion Including Quantization Distortion

    With a sine wave at the reference frequency is applied to the input interface, the total distortion measured at the output port interface lies above the limit given in Table Reference frequency: • 1020 Hz Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 37: Spurious In-Band Signal

    Page 26 of 136 Chapter 2 — Transmission parameters Table 15 Total distortion method 2 Input signal Analog — Analog Digital — Analog dBm0 -30 to 0 Spurious in-band signal When a sine wave signal in the range of 700-1100 Hz, at a level of 0 dBmO is applied to the input port, the output level (at any frequency other than that of the applied signal,) is less than -40 dBmO when measured selectively in the band 300-3400 Hz.

  • Page 38: Group Delay

    The group delay distortion is the difference between the absolute group delay (minimum delay) and the group delay in the range 500 to 2800 Hz. Table 17 Group delay distortion Group delay distortion Frequency range Microseconds 500-600 1800 600-1000 1000-2600 2600-2800 1500 Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 39: Longitudinal Balance

    Page 28 of 136 Chapter 2 — Transmission parameters Longitudinal balance Longitudinal balance defines the amount of impedance balance that exists between the tip and ring conductor with respect to ground. Longitudinal balance is measured by injecting a longitudinal signal on the tip and ring conductors with respect to ground and measuring the amount of signal (noise) that is introduced between the tip and ring.

  • Page 40: Crosstalk

    Test Source: Frequency 200-3200 Hz 0 dBmO. Table 19 Crosstalk Minimum Design Attenuation Objective Connection type dBm0 dBm0 Line — Line >65 >75 Line — Trunk >65 >75 Trunk — Trunk >65 >75 Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 41 Page 30 of 136 Chapter 2 — Transmission parameters 553-3121-100 Standard 2.0 September 1998...

  • Page 42: Chapter 3 - Spares Planning

    This section will provide the information necessary to calculate spares for the Meridian 1 Option 11C Compact system. Definitions and assumptions Failure rate: Spares planning is based on the Failure rate of the replaceable part.
  • Page 43 Page 32 of 136 Chapter 3 — Spares planning The turnaround time from a repair house is estimated to be 10 working days (240 hours). (See Figure 3). Figure 3 Single depot or repair house service Depots 10-Day Turnaround Time (240 hrs.) Repair House The turnaround time from a centralized depot is estimated to be 2 working days (48 hours).

  • Page 44: Calculating Spares Requirements

    The quantity of a replaceable item that is required to stock a depot for one year can be calculated using a formula: N x F x T The spares planning formula has the following components: N — The number of a spares item in use. Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 45 Page 34 of 136 Chapter 3 — Spares planning F — The failure rate of a particular spares item. T — The turnaround time for repairing a failed spares item in hours. The formula produces an NFT value. The number of spares required for a one year period may be found by looking up the NFT value in Table 21, “Number of spares required,”...

  • Page 46: Failure Rates

    Analog Line Card 1.48 NTMW07 Line/Trunk Card 0.44 NTMW10 10 m Receiver card 1.21 NTMW11 Power supply 0.94 NTMW12 Analog Line 0.48 daughterboard NTDK21 Software Daughterboard 0.63 NTDK22 10 m Fiber 1.21 Daughterboard —Continued— Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 47 Page 36 of 136 Chapter 3 — Spares planning Failure rate per 6 hrs. NT code Description Telephone sets: NTZK06 M2006 telephone 3.08 NTZK08 M2008 telephone 3.10 NTZK16 M2616 telephone 3.88 NTZK22 M2216ACD-1 telephone 4.68 NTZK23 M2216ACD-2 telephone 5.37 NT6G00 M2250 TCM Console - End - 553-3121-100...

  • Page 48: Nft Values

    0.0010 0.0010 0.0452 0.0452 0.1890 0.189 0.425 0.425 0.734 0.734 1.090 1.09 1.50 1.50 1.95 1.95 2.43 2.43 2.94 2.94 3.46 3.46 4.01 4.01 4.58 4.58 5.16 5.16 5.76 5.76 6.37 —Continued— Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 49 Page 38 of 136 Chapter 3 — Spares planning Number NFT values of spares 6.37 6.99 6.99 7.62 7.62 8.26 8.26 8.91 8.91 9.57 9.57 10.20 10.2 10.90 10.9 11.50 11.5 12.20 12.2 12.90 12.9 13.60 13.6 14.30 14.3 15.00 15.0 15.80 - End -...

  • Page 50: Chapter 4 - Power Supplies

    Page 39 of 136 Chapter 4 — Power supplies Introduction This chapter describes the Meridian 1 Option 11C Compact NTMW11AC Power Supply unit and the operation of the Power Fail Transfer Unit (PFTU). Features Dimensions and weight The NTMW11 Power Supply measure approximately 12.5 in. (305 mm) high, 5 in.

  • Page 51: Ringing Generator

    Page 40 of 136 Chapter 4 — Power supplies Ringing Generator The NTMW11 Power Supply provides the following ringing generator for telephones: • Ringing voltage: 70, 75, 80, 86V. • Ringing frequency: 20, 25, 50 Hz, switch selectable. • Ring sync: A pulse 500 us wide, 6 or 11 ms (±3 ms) before the positive going zero crossing of the ringing waveform (11 ms for 20/25 Hz).
  • Page 52 +3.8V Complete Shutdown 8.5V +6.4V Partial failure -150V -100.0V Partial failure +15V +11.2V Partial failure -15V -11.2V Partial failure -48V -36.0V Partial failure Ring Partial failure (Pk V) -52V -45V Partial failure Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 53: Overvoltage

    Page 42 of 136 Chapter 4 — Power supplies Overvoltage An OVP (Over-Voltage Protection) circuit shuts down the power supply when the output voltage exceeds the limits given in Table 23. Table 23 Nominal and overvoltage limits Nominal Overvoltage Power supply status voltage limit +5.1V...

  • Page 54: Power Fail Transfer (Pft) Operation

    — When the NTMW07 card is in slot 5 & 6 TN 05 03 connects to TN 06 03 (Trunk on Card 05 Unit 03 connects to the telephone on Card 06 Unit 03) Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 55: Commercial Power Backup

    Page 44 of 136 Chapter 4 — Power supplies • In the Expansion cabinet — When the NTMW07 card is in slot 11 & 12 TN 11 03 connects to TN 12 03 (Trunk on Card 11 Unit 03 connects to the telephone on Card 12 Unit 03) —...

  • Page 56: Chapter 5 - Ntmw01 Small System Controller

    Controller Introduction This chapter describes the NTMW01 Small System Controller (SSC) card used exclusively with Meridian 1 Option 11C Compact systems. NTMW01 Small System Controller card The NTMW01 Small System Controller (SSC) card controls call processing, stores system and customer data, and provides an expansion interface. The NTMW01 SSC card is comprised of the following components and features: •...
  • Page 57 DRAM. DRAM functions much like RAM on a computer system, whereby system and user files are stored while the system is up and running. DRAM on the Meridian 1 Option 11C Compact system stores operating system files, overlay data, patch codes, and the active copy of the customer database.
  • Page 58 A conference call can have three to six participants. To illustrate, you can have a maximum of five 3-party conferences per device, or two 6-party conferences plus one 3-party conference. It is not possible to conference between conference devices. Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 59 Page 48 of 136 Chapter 5 — NTMW01 Small System Controller Ethernet Interface The NTMW01 SSC card is equipped with a 10 Mbps Ethernet port. External connections to the ethernet port is provided by a 15-pin connector located in the main cabinet. This is a standard 15-pin AUI interface for a MAU. 553-3121-100 Standard 2.0 September 1998...

  • Page 60: Chapter 6 - Sdi Ports

    Chapter 6 — SDI ports Introduction This chapter describes the SDI ports on the Meridian 1 Option 11C Compact system. Serial Data Interface (SDI) ports are used to connect devices such as terminals and modems to the Option 11C Compact. The two types of SDI ports supported are: •...

  • Page 61: Ntmw10 Fiber Receiver Card

    Page 50 of 136 Chapter 6 — SDI ports The baud rates available on all three ports are 300, 600, 1200, 2400, 4800, 9600 and 19200 baud. Table 24 shows the default settings. Table 24 Default port configuration Card Port Configuration Number MTC/SCH/BUG...

  • Page 62: Connection To External Equipment

    The connection to external devices (such as TTYs, Modems and so on) is achieved through the nine-pin SDI connector located in the expansion cabinet. It is extended to the external equipment with an NTAK1118 single port SDI cable. Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 63 Page 52 of 136 Chapter 6 — SDI ports 553-3121-100 Standard 2.0 September 1998...

  • Page 64: Chapter 7 - Meridian Modular Telephones

    Peripheral equipment requirements The telephone interfaces with the NTMW05 Digital Line Card (DLC) in Meridian 1 Option 11C Compact. The digital line card supports 24 voice ports (units 0 through 23) and eight Integrated Data ports (units 24 through 31, associated with voice units 8 through 15), each of which supports one data and one voice channel.

  • Page 65: General Description

    Page 54 of 136 Chapter 7 — Meridian Modular Telephones General description This chapter describes the various features and capabilities of the following Meridian Modular Telephones. M2006—a single line telephone with 6 programmable function keys. Figure 5 page M2008—a multi-line telephone with 8 programmable function keys. See Figure 6 page M2616—a high performance multi-line telephone with 16 programmable...
  • Page 66 Function keys and LCDs Volume control 553-1850 Dimensions: • Length: 8.42 in. (215 mm) • Width: 8.42 in. (215 mm) • Height: 3.61 in. (93mm) • Weight: approximately 2 lb (1 kg) Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 67 Page 56 of 136 Chapter 7 — Meridian Modular Telephones Figure 6 M2008 modular telephone Filler plate Brandline insert Speaker Switchook Message Waiting lamp Rls key Hold Key Function keys and LCDs Volume Prime DN control 553-1851 Dimensions: • Length: 8.42 in. (215 mm) •...
  • Page 68 (2616) Volume control Prime DN 553-1852 Dimensions: • Length: 9.75 in. (250 mm) • Width: 9.45 in. (235 mm) • Height: 3.64 in. (93 mm) • Weight: approximately 2 lb (1 kg) Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 69 Page 58 of 136 Chapter 7 — Meridian Modular Telephones Figure 8 M2216ACD-1 and -2 modular telephones Display Brandline insert Speaker Message Waiting lamp Rls key Hold key Function keys and LCDs Volume control Prime DN 553-1853 Dimensions: • Length: 9.75 in. (250 mm) •...

  • Page 70: Physical Characteristics

    Each modular telephone also has a number of programmable keys with LCD indicators that can be assigned to any combination of directory numbers and features (only one DN for the M2006). The lower right-hand key (key 0) is reserved for the Primary DN. Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 71 Page 60 of 136 Chapter 7 — Meridian Modular Telephones When equipped with a Display module or MPDA, key 07 is automatically assigned as the Program key and cannot be changed. Key 05 becomes the Program key on the M2006, if equipped with MPDA. The M2006 is a single line telephone and accepts only one DN.
  • Page 72 Once Handsfree is activated, it can be deactivated by picking up the handset or by ending the call using the Release (Rls) key. If Handsfree is not software assigned, you can assign any other feature to key 15. Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 73: Features And Options Matrix

    Page 62 of 136 Chapter 7 — Meridian Modular Telephones When the Handsfree/mute key is pressed during a Handsfree call, the microphone is deactivated while the speaker remains active, preventing the other party from overhearing local conversations. The Handsfree LCD indicator flashes while the microphone is muted.

  • Page 74: Optional Equipment

    Note: It is possible to adjust the Display screen contrast so that it is too light or too dark to read. If you cannot read the Display, disconnect and then reconnect the line cord to return to the default settings. Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 75 Page 64 of 136 Chapter 7 — Meridian Modular Telephones Meridian Programmable Data Adapter The Meridian Programmable Data Adapter (MPDA) mounts within the telephone (see Figure 11 page 67) and allows asynchronous ASCII terminals, personal computers and printers to be connected to the telephone using an RS-232-D (subminiature) interface.
  • Page 76 M2616 telephone. Choose an amplified headset that draws power from a battery or AC transformer (power is not provided by the telephone). The amplifier must draw less than 400 micro amps from the telephone jack. Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 77 Page 66 of 136 Chapter 7 — Meridian Modular Telephones The headset should be designed to work with a telephone jack with these characteristics: Transmit interface: +5 V through 10K DC bias resistance with maximum current of 500 micro amps. The differential input impedance is 10K ohms. Connects to pins 2 and 5 of the handset jack.
  • Page 78 Chapter 7 — Meridian Modular Telephones Page 67 of 136 Figure 11 Back of telephone showing Meridian Programmable Data Adapter Flashing RS232 interface 553-1897 Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 79: Specifications

    Telephone. Using a cord designed for other digital telephones could result in damage to the cord. Figure 12 shows a simplified block diagram of the Meridian Modular Telephone, MPDA and DLC in the Meridian 1 Option 11C Compact system. 553-3121-100 Standard 2.0 September 1998...

  • Page 80: Local Alerting Tones

    The alerting tone cadences cannot be changed from the telephone, but can be altered for individual Meridian Modular Telephones by software controlled adjustments. Alerting tone characteristics The tone frequency combinations are given in Table Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 81: Power Requirements

    Page 70 of 136 Chapter 7 — Meridian Modular Telephones Table 27 Tone Characteristics Tone Frequencies Warble Rate (Hz) 667 Hz, 500 Hz 10.4 667 Hz, 500 Hz M2006 and M2008 1600 Hz, 2000 Hz 10.4 1600 Hz, 2000 Hz M2016S, M2616 and M2216ACD 333 Hz, 250 H 10.4...
  • Page 82 Page 71 of 136 If a power failure occurs, configurations which require loop power only continue to work if the Meridian 1 Option 11C Compact is equipped with a backup commercial power source such as an Uninterruptible Power Supply (UPS). Only those options which require additional power will cease to function.
  • Page 83 Page 72 of 136 Chapter 7 — Meridian Modular Telephones The Power Supply Board comes factory installed with any configuration of the M2016S and M2216ACD-2. The M2006 and M2008 require the Power Supply Board with the addition of any option. The M2616 requires the Power Supply Board with any option except the Display Module.
  • Page 84 Note: You cannot wall mount the telephone over the wall jack when using a transformer, due to the size of the RJ-11 adapter. Mount it above or to the side of the jack and run the line and power cords to it. Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 85 Page 74 of 136 Chapter 7 — Meridian Modular Telephones Figure 13 Configuration of local plug-in transformer 553-3121-100 Standard 2.0 September 1998...
  • Page 86 The AC source should be rated at 29 V AC, 700 mA isolated. The DC source should be rated at 42 V DC, 300 mA isolated, with current limiting output of 1 amp. Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 87 Page 76 of 136 Chapter 7 — Meridian Modular Telephones Figure 14 Closet power supply configuration 553-3121-100 Standard 2.0 September 1998...

  • Page 88: Meridian Programmable Data Adapter

    The keyboard dialing routine may vary with the data equipment being used and reference to the user's data terminal manual may be necessary. For more detailed information, see Meridian Programmable Data Adapter User Guide (PO705986). Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 89 Page 78 of 136 Chapter 7 — Meridian Modular Telephones The MPDA can establish either data calls or voice calls. You can make data calls using keyboard dialing, keypad dialing or the AT command dialing feature. The AT dialing features lets you originate data calls to local and remote Data Terminal Equipment (DTE) directly from a data terminal keyboard or personal computer.

  • Page 90: Chapter 8 - M2250 Attendant Console

    Introduction The M2250 Attendant Console is to assist in placing and extending calls in and out of the Meridian 1 Option 11C Compact system. It is operated by an attendant as the human interface between the system and the users.
  • Page 91 Page 80 of 136 Chapter 8 — M2250 Attendant Console • An optional Busy Lamp Field/Console Graphics Module (BLF/CGM), which displays the status of up to 150 consecutive extensions (SBLF) or any group of 100 extensions within the system (EBLF), and has many text and graphics capabilities.

  • Page 92: Physical Details

    • Height (front) 1 in. (25 mm) • Height (back) 2.5 in. (65 mm) • Height (with display screen panel up) 4.5 in. (115 mm) • Weight approximately 6 lb (2.75 kg) Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 93 Page 82 of 136 Chapter 8 — M2250 Attendant Console Figure 15 M2250 attendant console—top view 553-3121-100 Standard 2.0 September 1998...

  • Page 94: Keyboard Layout

    Function keys There are eight function keys on the attendant console, located directly below the display screen. Refer to Table 30 page 84 for the positions, functions, and markings of these keys. Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 95 Function of key Figure Centralized Attendant Service (CAS) or History Feature key Note: The History feature is not available with Meridian 1 Option 11C Compact. Prime function: Position Busy feature Level 1 function (normal): Night Service feature Function key 1 (F1) Prime function (normal): Selects display screen line 2 for scrolling.
  • Page 96 Signal Destination feature key Level 1 function (Shift): Used with the Busy Lamp Field/Console Graphics Module, as the Mode key. Note: Keys are numbered for identification purposes from 1 to 8 (left to right). Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 97: Display Screen Messages

    Page 86 of 136 Chapter 8 — M2250 Attendant Console Switches A slider switch, located in the bottom row of keys, between columns DI/EI and FI (see Figure 15 page 82), controls the handset and headset receive volume level. The Power Fail Transfer (PFT) switch is located in the baseplate. Both the line connector and the RS-232 connector for the PC port are located at the back of the attendant console.
  • Page 98 Display screen status Indicator Status QCW-type (line 4) Night Busy Release NIGHT BUSY IDLE ACTIVE EMERGENCY If the emergency power fail transfer feature is activated, the console status will be displayed as EMERGENCY. Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 99 Page 88 of 136 Chapter 8 — M2250 Attendant Console Figure 16 M2250 attendant console—rear, left side, and bottom views Display Panel (can be tilted upwards) Handset/Headset Jacks Handset/Headset Jacks Protective plastic cover to be installed when ....connector is not in use ..

  • Page 100: Connections

    1 of the display screen. The user can turn the sound of key click on or off. On the M2250, the user can adjust the pitch and volume of the key click. Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 101: Busy Lamp Field/Console Graphics Module Busy Lamp Field/Console

    Page 90 of 136 Chapter 8 — M2250 Attendant Console Busy Lamp Field/Console Graphics Module Busy Lamp Field/Console Graphics Module The Busy Lamp Field/Console Graphics Module (BLF/CGM) can be added to an M2250 attendant console. The BLF/CGM can: • display the status (busy or idle) of up to 150 consecutive extensions within the system (SBLF) •...
  • Page 102 (transformer—A0367601) must be cabled in at the local cross-connect terminal at a maximum of 115 ft. (35 m) from the attendant console when the BLF/CGM is installed. This provides backlighting for the BLF/CGM. Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 103 Page 92 of 136 Chapter 8 — M2250 Attendant Console 553-3121-100 Standard 2.0 September 1998...

  • Page 104: Chapter 9 - Ntmw05 Digital Line Card

    Chapter 9 — NTMW05 Digital Line Card Description In the Meridian 1 Option 11C Compact systems the NTMW05 Digital Line Card can be installed in any Peripheral Equipment (PE) slot in the main (Slots 1 through 9) and in the expansion cabinet (slots 11 through 19).

  • Page 105: Functional

    Page 94 of 136 Chapter 9 — NTMW05 Digital Line Card Functional The digital line card is equipped with 24 voice ports (units 0 through 23), eight of which are integrated data ports (units 24 through 31 associated with units 8 through 15). Each unit provides a multiplexed voice and signaling path to and from digital apparatus over a 2-wire full duplex 512 kHz time compression multiplexed (TCM) digital link.

  • Page 106: Technical Summary

    15.5 dB at 256 kHz, and a maximum DC loop resistance of 210 ohms; 26 AWG wire is limited to 2450 ft (745 m). Foreign and surge voltage protections In-circuit protection against power line crosses or lightning is not provided on the Digital line card. Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 107 Page 96 of 136 Chapter 9 — NTMW05 Digital Line Card 553-3121-100 Standard 2.0 September 1998...

  • Page 108: Chapter 10 - Ntmw06 Analog Line Card

    It also equipped with the message waiting indicator feature. The NTMW06 Analog Line Card interfaces to and is compatible with the equipment listed in Table 33 page Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 109: Physical

    Page 98 of 136 Chapter 10 — NTMW06 Analog Line Card Table 33 NTMW06 Analog Line Card compatibility Equipment Specifications 500 type rotary dial sets (or equivalent): dial speed 8.0 to 12.5 pps percent break 58 to 70% interdigital time 150 ms 2500 type Digitone sets (or equivalent): frequency accuracy...

  • Page 110: Functional

    (500-type telephones) by collecting dial pulses • connection of -150 V DC at 1 Hz to activate message waiting lamps • lamp status detection • disabling and enabling of selected units for maintenance Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 111: Technical Summary

    Page 100 of 136 Chapter 10 — NTMW06 Analog Line Card Technical summary Analog line interface Input impedance The impedance at tip and ring is 600 ohms with a return loss of • 20 dB for 200-500 Hz • 26 dB for 500-3400 Hz Insertion loss On a station line-to-line connection, the total insertion loss at 1 kHz is 6 dB + 1 dB.
  • Page 112 -150 V on analog message waiting line card. Insertion loss 6 dB + 1 dB at 1020 Hz 3.5 dB loss for analog to PCM, 2.5 dB loss for PCM to analog Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 113: Power Requirements

    Page 102 of 136 Chapter 10 — NTMW06 Analog Line Card Power requirements Table 36 provides the power requirements for the NTMW06 Analog Line Card. Table 36 Power requirements Voltage Idle Active Tolerance (+/-) current current + 12.0 V DC 0.36 V DC 48 mA 0 mA...

  • Page 114: Chapter 11 - Ntmw07 Trunk/Line Card

    Chapter 11 — NTMW07 Trunk/Line Card Introduction The NTMW07 Trunk/Line card is a combined 4 Port analog line and 4 Port analog trunk card designed for use in the Meridian 1 Option 11C Compact system. Description The NTMW07 Trunk/Line Card has eight unit; four analog line units and four analog trunk units.

  • Page 115: Trunk Types Supported

    Page 104 of 136 Chapter 11 — NTMW07 Trunk/Line Card • interfaces four PCM signals to one DS-30X timeslot in A10 format • transmits and receives SSD signaling messages over a DS-30X signaling channel in A10 format • supports PCM signal loopback to DS-30X for diagnostic purposes. •...

  • Page 116: Electrical Characteristics

    Equal to or greater than 30 kilohms (Tip to Ring, Tip to kilohms (Tip to Ring, Tip to ground, Ring to ground) ground, Ring to ground) Effective loss See PAD switching See PAD switching Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 117: Physical Characteristics

    Page 106 of 136 Chapter 11 — NTMW07 Trunk/Line Card Physical characteristics 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 is configured in software) and the LED extinguishes.
  • Page 118 14 00..14 03 Line NTMW08 Expansion 15 00..15 03 Trunk NTMW08 15 & 16 Expansion 16 00..16 03 Line NTMW08 Expansion — NTMW08 Expansion — NTMW08 Expansion — NTMW08 Expansion Not used NTMW08 Expansion Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 119: Power Fail Transfer

    Page 108 of 136 Chapter 11 — NTMW07 Trunk/Line Card Power Fail Transfer The NTMW07 Trunk/Line card has a built-in Power Failure Transfer (PFT) feature, selectable using Jumper J1. It is designed to operate with a loop start trunk. This feature allows the connecting one trunk on the card to an analog telephone on the same card in the event of a commercial power or system failure.

  • Page 120: Power Requirements

    Release control establishes which end of a call (near, far, either, joint, or originating) disconnects the call. Only incoming trunks in idle ground start configuration can provide disconnect supervision. You configure release control for each trunk independently in the Route Data Block (LD 16). Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 121: Pad Switching

    PAD settings and the resulting port-to-port loss for trunk connections between the NTMW07 Trunk/Line Card and any other Peripheral Equipment (PE) unit, denoted as Port B In Meridian 1 Option 11C Compact systems, the insertion loss from PE ports to PE ports is as follows. 553-3121-100 Standard 2.0...
  • Page 122 Page 111 of 136 Table 42 Insertion Loss from PE Ports to PE Ports (measured in dB) PE Ports 500/2500 Digital CO/FX Line Line /WATS Loop Tie Trunk PE Ports CO/FX/WAT SLoop Tie Trunk -3.5 Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 123: Application

    Page 112 of 136 Chapter 11 — NTMW07 Trunk/Line Card Application The optional applications, features, and signaling arrangements for each trunk are assigned through route and trunk data blocks. Loop start operation Loop start operation is configured in software. When the Universal Trunk is idle, it provides a high impedance toward the CO for isolation and AC detection.

  • Page 124: Tie Two-Way Dial Repeating Operation

    14 seconds (at the start of the announcement period). A number of trunks can be connected to one announcement machine. The NTMW07 Trunk/Line Card does not support the Code-A-Phone 210DC announcement recorder. Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 125: Paging Operation

    Page 114 of 136 Chapter 11 — NTMW07 Trunk/Line Card Paging operation In the Paging mode, the trunk is connected to a customer-provided paging amplifier system. When the trunk is accessed by dial-up or attendant key operation, it provides a loop closure across control leads A and B. In a typical application, this transfers the input of the paging amplifier system to the transmission path of the trunk.

  • Page 126: Chapter 12 - Ntmw44 Universal Trunk Card

    PCM signals to one DS-30X timeslot in A10 format • transmits and receives SSD signaling messages over a DS-30X signaling channel in A10 format • supports PCM signal loopback to DS-30X for diagnostic purposes. Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 127: Trunk Types Supported

    Page 116 of 136 Chapter 12 — NTMW44 Universal Trunk Card Trunk types supported The four trunk units on the card support the following types of trunks: • Central Office (CO), Foreign Exchange (FX), and Wide Area Telephone Service (WATS) •...

  • Page 128: Electrical Characteristics

    Equal to or greater than 30 kilohms (Tip to Ring, Tip to kilohms (Tip to Ring, Tip to ground, Ring to ground) ground, Ring to ground) Effective loss See PAD switching See PAD switching Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 129: Physical Characteristics

    Page 118 of 136 Chapter 12 — NTMW44 Universal Trunk Card Physical characteristics 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 is configured in software) and the LED extinguishes.

  • Page 130: Power Requirements

    Power requirements Power requirements for the NTMW44 are shown in Table 46. Table 46 Power requirements Voltage Tolerance Idle current Active current ± 15.0 V DC ± 5% 306 ma 306 ma Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 131: Environmental Specifications

    Page 120 of 136 Chapter 12 — NTMW44 Universal Trunk Card + 8.5 V DC ± 2% 120 ma 120 ma - 48.0 V DC ± 5% 346 ma 346 ma + 5.0 V DC ± 10% 350 ma 350 ma Environmental specifications Table 47 lists the environmental specifications for the Universal Trunk Card.
  • Page 132 PAD settings and the resulting port-to-port loss for trunk connections between the NTMW44 and any other Peripheral Equipment (PE) unit, denoted as Port B In Meridian 1 Option 11C Compact systems, the insertion loss from PE ports to PE ports is as follows. Meridian 1 Option 11C Compact...
  • Page 133 Page 122 of 136 Chapter 12 — NTMW44 Universal Trunk Card Table 48 Insertion Loss from PE Ports to PE Ports (measured in dB) PE Ports 500/2500 Digital CO/FX Line Line /WATS Loop Tie Trunk PE Ports CO/FX/WAT SLoop Tie Trunk -3.5 553-3121-100...

  • Page 134: Application

    Tip and Ring leads to the CO. The trunk is arranged for first party release. The CO releases the trunk by removing the low resistance loop and normal battery and ground are restored at the system. Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 135: Tie Two-Way Dial Repeating Operation

    Page 124 of 136 Chapter 12 — NTMW44 Universal Trunk Card Tie Two-way Dial Repeating operation In an incoming call configuration, the far end initiates a call by placing a low resistance loop across the Tip and Ring leads. This causes a current to flow through the battery feed resistors in the trunk circuit.

  • Page 136: Paging Operation

    A and B. In a typical application, this transfers the input of the paging amplifier system to the transmission path of the trunk. Meridian 1 Option 11C Compact Technical Reference Guide...
  • Page 137 Page 126 of 136 Chapter 12 — NTMW44 Universal Trunk Card 553-3121-100 Standard 2.0 September 1998...

  • Page 138: Chapter 13 - Ntmw04 1.5 Mb Dti/Pri

    The NTMW04 is a mini Peripheral Equipment (PE) circuit card that installs in any of the upper three peripheral slots in the main cabinet of the Meridian 1 Option 11C Compact system. It provides 1.5Mb ISDN Primary Rate Interface and Digital Trunk Interface capabilities. The NTMW04 also provides Clock recovery (slave configuration) and a D-Channel Handler Interface (downloadable).

  • Page 139: Physical Description

    Page 128 of 136 Chapter 13 — NTMW04 1.5 Mb DTI/PRI • transmission line performance monitoring and Fault Management with Alarm reporting • downloadable PAD value for Loss level control and A-law/Mu-law conversion • Elastic Buffer for Slip Control • alarm detection and generation •...

  • Page 140: Foreign And Surge Voltage Protection

    Foreign and surge voltage protection Lightning protectors must be installed between an external T-1 carrier facility and the Meridian 1 Option 11C Compact cabinet. For public T-1 facilities, this protection is provided by the local operating company. In a private T-1 facility environment, the NTAK92 protection assembly may be used.

  • Page 141: Architecture

    50) each for u255 to u255, u255 to A-law, A-law to u255, and A-law to A-law. These values are selected to meet the EIA loss and level plan and are set in LD 73 (refer to the Meridian 1 Option 11C Compact 1.5Mb DTI/PRI Guide).

  • Page 142: D-Channel Interface

    CPU pack. Depending on the equipped state of the clock controller, the clock controller interface enables or tri-states the reference clock source, in conjunction with software. Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 143: Mode Of Operation

    267-399 ft 400-655 ft Primary Reference Clock card setting The Primary Reference Clock card is set in LD 73 using the PREF prompt. Refer to the Meridian 1 Option 11C Compact 1.5Mb DTI/PRI Guide for further details. 553-3121-100 Standard 2.0...

  • Page 144: Chapter 14 - Ntmw50 Rs232 Service Module

    Port 4 connects to the SSC circuit card in the main cabinet by way of the SDI cable. • Port 5 provides an RS232 connection to the main distribution frame (MDF), in case it is needed. • The NTMW50 is wall mountable. Meridian 1 Option 11C Compact Technical Reference Guide...

  • Page 145: Switch And Led

    Page 134 of 136 Chapter 14 — NTMW50 RS232 Service Module Assembly Switch and LED The NTMW50 has a BYPASS switch mounted on it, along with an LED status indicator. The BYPASS switch provides a backup link between the PMS and the Option 11C Compact, to be used if the Compact Mail card fails or is powered down for any reason.

  • Page 146: Chapter 15 - Fiber Optic Cable And Interfaces

    33 ft (10 m) from the main cabinet. Fiber optic cable interfaces Fiber optic interface hardware used with Meridian 1 Option 11C Compact consists of an NTDK22 Fiber Expansion daughter board and an NTMW10 Fiber Receiver card mounted in the expansion cabinet.

  • Page 147: Plastic Fiber Optic Cable

    Page 136 of 136 Chapter 15 — Fiber optic cable and interfaces Plastic Fiber Optic cable The A0632902 Fiber Optic cable is a 33 ft (10 m) plastic fiber optic cable. It is equipped with a connector on each end which connect to the NTDK22 Daughter Board in the main cabinet and to the NTMW10 Fiber Receiver card in the expansion cabinet.
  • Page 148 Technical Reference Guide © 1998 Nortel (Northern Telecom) All rights reserved Information is subject to change without notice. Nortel 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.

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