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Nortel Meridian 1 Manual

Remote peripheral equipment
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Meridian 1
Remote Peripheral Equipment
Description, installation, and testing
Document Number: 553-2601-200
Document Release: Standard 4.00
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.
RPE
Description, installation, and testing

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  • Page 1 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.
  • Page 3 Standard 4.00. This is a global document and is up-issued for X11 Release 25.0x. December 1994 Standard 3.00. Reissued for editorial changes. December 1991 Standard 2.00. Reissued to include technical content updates. August 1990 Standard 1.00. Reissued for compliance with Nortel Networks standard 164.0. RPE Description, installation, and testing...
  • Page 4 Page 4 of 60 553-2601-200 Standard 4.00 April 2000...

  • Page 5: Table Of Contents

    Page 5 of 60 Contents Description ....... . Equipment configuration ....Reference list .
  • Page 6 Page 6 of 60 Contents Assembly and installation ....Reference list ..........Carrier interface .

  • Page 7: Description

    — a wire pair with no repeaters or other interfaces (in-house IRPE) — a digital carrier link meeting T1 interfacing specifications (such as Nortel Networks LD 1) — a microwave radio link (which meets T1 interfacing specifications) —...
  • Page 8 Page 8 of 60 Description 553-2601-200 Standard 4.00 April 2000...

  • Page 9: Equipment Configuration

    Page 9 of 60 Equipment configuration Reference list The following are the references in this section: • Circuit card installation and testing (553-3001-211) Carrier system A block diagram of the basic RPE system is shown in Figure 1. A 1.544 Mbps multiplexed digital carrier system (such as LD-1), or a microwave radio link, is required for each RPE system.
  • Page 10 Page 10 of 60 Equipment configuration Each loop requires four cable pairs (two carrier lines) between the carrier shelf and the carrier system for transmission and signaling. A maximum of two cable pairs is required for maintenance purposes. These are the order-wire (OW) and fault-locating (FL) pairs, and are optional depending on the distance between the carrier shelves and on the location of the office repeater bay (ORB) in the system.

  • Page 11: Circuit Cards

    Equipment configuration Page 11 of 60 Circuit cards The same circuit cards are used in the local and remote carrier shelves (see Figure 3), except for the QPC63 (local) and the QPC65 (remote) cards. All circuit cards have designated slot positions on the carrier shelves, and they must be kept in these positions to function properly.
  • Page 12 Page 12 of 60 Equipment configuration Figure 1 RPE block diagram 553-2601-200 Standard 4.00 April 2000...
  • Page 13 Equipment configuration Page 13 of 60 Figure 2 Possible ORB locations in the RPE system Approx. 1829 m (a) ORB (6000 ft) at local end Local Remote Order wire (OW) equipment equipment Fault locate pari (FLP) 112 km (70 mi) Approx.
  • Page 14 Page 14 of 60 Equipment configuration Figure 3 Typical RPE equipment configuration 553-2601-200 Standard 4.00 April 2000...

  • Page 15: Equipment Description

    Reference list The following are the references in this section: • Meridian 1 equipment identification (553-3001-154) Cabinets RPE equipment is housed in standard SL-1 cabinets. A QCA8, QCA37, or QCA74 cabinet is required at the remote location to provide power for the QBL14 Power Distribution Box that powers the carrier shelves.
  • Page 16 Page 16 of 60 Equipment description Function The carrier shelves accommodate the circuit cards listed in Table 1. These cards can function only in the designated card positions shown in Figure 3. Table 1 Carrier shelf circuit cards Location Product code Description Quantity Local and...

  • Page 17: Pe Shelves

    — international rack mounting standards (48.3 cm [19 in.]) — approximate weight of 15.9 kg (35 lbs) when fully equipped PE shelves Left- or right-hand mount shelves are used. See Meridian 1 equipment identification (553-3001-154) for a description of these. QPC62 1.5 Mbaud Converter Card Function The QPC62 converts an SL-1 loop into two carrier loops.

  • Page 18: Qpc63 Local Carrier Buffer Card

    Page 18 of 60 Equipment description QPC63 Local Carrier Buffer Card Function The QPC63 performs the following functions: — generates a 1.544-MHz clock from the 2.048-MHz clock — provides enables and decodes outgoing and incoming data — delays incoming data from the carrier so that its frame, relative to the outgoing data frame, is equivalent to that returning from a peripheral buffer —...

  • Page 19: Qpc65 Remote Peripheral Switch Card

    Equipment description Page 19 of 60 QPC65 Remote Peripheral Switch Card Function Each SL-1 loop at a remote site has a remote peripheral switch (RPS) card associated with it. The card provides: — shelf, card, and line enables, along with the bypass bit to the shelves it serves at the remote site —...

  • Page 20: Qpc67 Carrier Maintenance Card

    Page 20 of 60 Equipment description QPC67 Carrier Maintenance Card Function The QPC67 performs the following functions: — conducts fault-locate testing, using an M-type (3017 Hz) fault-locate filter — detects DC for the fault-locate pair by means of DC-detection circuitry —...

  • Page 21: Qpc99 Carrier Interface Card

    Equipment description Page 21 of 60 QPC99 Carrier Interface Card Function The QPC99 performs the following functions: — With two carrier line receivers and built-in 7.5 dB pads, it converts the bipolar line signals into TTL level signals. It also provides facilities for LD-1 carrier looping, monitors the system, and invokes emergency transfer if the carrier fails.

  • Page 22: Cables

    Page 22 of 60 Equipment description Cables The following cables are used in RPE installations: — NE-A18Q to connect the local carrier shelf to a network card and to connect the PE shelves to each other and to the remote carrier shelf. —...

  • Page 23: Assembly And Installation

    Page 23 of 60 Assembly and installation Reference list The following are the references in this section: • Circuit card installation and testing (553-3001-211) • Telephone and attendant console installation (553-3001-215) RPE equipment may be shipped fully assembled in PE cabinets or shelves, or the circuit cards may be shipped individually packaged for installation in existing PE cabinets.
  • Page 24 Page 24 of 60 Assembly and installation Procedure 1 Local RPE installation Step Procedure Install the QSD6 or QSD11 (left-hand or right-hand mounted) carrier shelf with no circuit cards inserted. Install an NE-A18Q cable from carrier shelf connector jacks E and F to each network card (see Figure 5).
  • Page 25 Assembly and installation Page 25 of 60 Procedure 2 Remote RPE installation Step Procedure Install the QSD6 or QSD11 (left-hand or right-hand mounted) carrier shelf. Install the PE shelves (left-hand or right-hand mounted). Install two NE-A25B cables from carrier shelf connector jacks C and D to the cross connect terminal (see Figure 4).
  • Page 26 Page 26 of 60 Assembly and installation Figure 4 Remote end PE shelf and carrier shelf cabling Line and trunk connection (Note 2) QSD3 peripheral shelves Teminating plug in last PE shelf of network loop (Note 1) Typical connector NE-A18QA network cable loop X QSD6 left-hand mount...
  • Page 27 Assembly and installation Page 27 of 60 Figure 5 Local end network loop and carrier shelf cabling Loop X QSD6 (or WSD11 right-hand mount) carrier shelf Note Power Loop Y To cross-connect terminal through NE-A25B connector cables Loop address Common numbers equipment numbers...
  • Page 28 Page 28 of 60 Assembly and installation Figure 6 QBL14 Power Distribution Box wiring and connections First RPE carrier shelf To cabinet ground bus 3.30 m (12.5 ft) red wire provided for 52 V supply To RPE 2–4 carrier shelves QBL14 Power Distribution Box T S 2 Input...
  • Page 29 Assembly and installation Page 29 of 60 Figure 7 QPC62 1.5 Mbaud Converter Card option switches and header pins CARB CARA Header Pins 1 2 3 – – – – – – – – – – – – Note 1: If cards are QPC62E or later vintage, insert the plug-in jumper (U-link) between header pins 1 and 2.
  • Page 30 Page 30 of 60 Assembly and installation Figure 8 QPC66 2 Mbaud Converter Card header pins Header pins Note 1: If cards are QPC66D or later vintage, insert the plug-in jumper (U-link) between header pins 1 and 2. Note 2: If cards are QPC66C or earlier vintage, insert the U-link between header pins 2 and 3.
  • Page 31 Assembly and installation Page 31 of 60 Figure 9 QPC99 Carrier Interface Card option switches Option switch switch Note: Refer to Circuit card installation and testing (553-3001-211) for switch settings. 553-4070 RPE Description, installation, and testing...
  • Page 32 Page 32 of 60 Assembly and installation Figure 10 QBL14 Power Distribution Box input breaker QBL14 Disconnect & Input breaker tape terminal (rear view) 553-4072 553-2601-200 Standard 4.00 April 2000...
  • Page 33 Assembly and installation Page 33 of 60 Procedure 3 Remote alarm installation Step Procedure Note: In an RPE installation, a power failure at the remote end cannot be detected at the local end. To overcome this, a wire pair can be connected from the remote QPC84 Power Monitor to the alarm input of the local QPC84 (see Figure 11).
  • Page 34 Page 34 of 60 Assembly and installation Figure 11 Remote alarm connection Cross-connect Remote equipment Local equipment field Customer-provided QPC84 Normally alarm (Note 1) open P10 plug –48 V dc QCA8 cabinet QSD10 power converter shelf QPC84 QPC84 (Note 1) P10 plug J10 P10 plug Normally...

  • Page 35: Carrier Interface

    Page 35 of 60 Carrier interface Land-based carrier The SL-1 RPE hardware interfaces with LD-1 carrier apparatus, which conforms to the T1 industry standard. Therefore, any carrier system conforming to T1 signaling standards should be able to interface with SL-1 RPE.

  • Page 36: Carrier Specifications

    Page 36 of 60 Carrier interface If an ORB is being used, the cable between the ORB and the cross connect (MDF) should have the following characteristics: — The impedance presented to the SL-1 equipment should be 100 ohm at 722 kHz.
  • Page 37 Carrier interface Page 37 of 60 Table 2 Carrier characteristics Line rate 1.544 Mb/s (±200 b/s) Signal bipolar, 50% duty cycle Output level Option 1: If the equipment interfaces directly with the carrier line, or with an ORB that is less than 45.7 m (150 ft) away from the common equipment, the positive and negative output pulse heights are 3 V ±10%, and the imbalance between the positive and negative pulses is less than 5%.
  • Page 38 100% A x 5 = 0.5 V W = 324 = 30 ns 400 ns Shall not exceed 10% Baseline-to-peak 294 < W ±15 ns < 354 overshoot overshoot A x 0.2 < h < A x 0.4 5.4 < A = 0.3 < 5.6 V tr, ti <80 ns Note 1: Six-V option selected and no output equalizer terminating into 100 ohm load.

  • Page 39: In-House Rpe

    Carrier interface Page 39 of 60 In-house RPE Since there is a carrier repeater located in the QPC99, it is not necessary to use ORBs and extra repeaters between the local and remote ends of the RPE if the distance between them is typically less than 762 m (2500 ft). In this case, the standard T1 procedures for cable installation should be followed.
  • Page 40 Page 40 of 60 Carrier interface — The following operating limits apply when several carrier systems are used without any additional equipment in the same group: Maximum cable length in meters (feet) Wire gauge (AWG) 4 RPE 8 RPE 12 RPE systems per systems per systems per...

  • Page 41: Microwave Radio

    Carrier interface Page 41 of 60 Microwave radio Cabling between the SL-1 and the carrier facility should meet the criteria outlined for land-line carrier systems. In addition, the complete microwave system must also meet the overall limits for land-based carrier systems, and should conform to T1 interfacing specifications.
  • Page 42 Page 42 of 60 Carrier interface 553-2601-200 Standard 4.00 April 2000...

  • Page 43: Connections

    Page 43 of 60 Connections Reference list The following are the references in this section: • Telephone and attendant console installation (553-3001-215) All cables, except cables to connectors C and D of carrier shelves, are terminated and designated as described in Telephone and attendant console installation (553-3001-215).
  • Page 44 Page 44 of 60 Connections Table 3 Cable C designations at local and remote locations Connector C Network loop Card position pin number Lead color Lead designation (Notes 1 and 2) BL-W W-BL BR-W W-BR BL-R R-BL FLWA FLWB WFIT WFIR 9 to 25 34 to 50...
  • Page 45 Connections Page 45 of 60 Table 4 Cable D designations at local and remote locations Connector D Network loop Card position pin number Lead color Lead designation (Notes 1 and 2) BL-W W-BL BR-W W-BR BL-R PFX1 R-BL PFX2 PFY1 PFY2 DCST DSCR...
  • Page 46 Page 46 of 60 Connections Figure 13 PFT intercabinet and console cross connections (QUA1 shown) Carrier QUA1 unit QCA8 or QCA37PE Console shelf PFJ5 cable cabinet P10 cable cable D leads cable leads leads leads Color Name Color Name Color Name W-BL BL-W...
  • Page 47 Connections Page 47 of 60 Figure 14 PFT RPE local to remote RPE cross connections RPE Description, installation, and testing...
  • Page 48 Page 48 of 60 Connections Figure 15 Detail of local and remote MDF cross connections Remote end Local end Service center CA pair CA pair connections connections Note 1 Note 1 Note 2 Note 2 Note 2 Note 1: Receiving and transmission cable pairs to be entered in these columns. Obtained from switching center personnel and work order.
  • Page 49 Connections Page 49 of 60 Figure 16 Maintenance lead cross connections (Part 1 of 2) A) RPE system not equipped with ORB Local end carrier shelf Remote end carrier shelf Cable Wire Lead Lead Wire Cable color name name color Shelf 1 BL-R BL-R...
  • Page 50 Page 50 of 60 Connections Figure 16 Maintenance lead cross connections (Part 2 of 2) C) System equipped with ORB at local or remote or both locations Local end carrier shelf Remote end carrier shelf Cable Wire Lead Lead Wire Cable color name...

  • Page 51: Testing

    Page 51 of 60 Testing Reference list The following are the references in this section: • X11 features and services (553-3001-306) The following identifies the testing information for equipment associated with RPE. Note: The RPE Diagnostic Program (LD 33) should be included in the midnight routines for any system with RPE.

  • Page 52: Emergency Transfer Stations And Trunks

    Page 52 of 60 Testing Emergency transfer stations and trunks Follow these steps: Manually invoke an emergency line transfer by operating the emergency transfer switch on the faceplate of the QPC84 card. Perform an outgoing and incoming call to each station. Note: If outgoing trunks are ring ground start, momentarily operate the ground start button on the 500-type telephone after lifting the receiver to get dial tone.
  • Page 53 Testing Page 53 of 60 Figure 17 QPC99 maintenance jacks and looping switches ROUT A MON A MLP A ROUT B MON B MLP B QPC99 QPC67 MLP A MLP B QPC62 553-4078 RPE Description, installation, and testing...

  • Page 54: Span Line Fault Locating

    Page 54 of 60 Testing Span line fault locating The typical repeatered line maintenance arrangement (see Figure 18) includes a series of FL filters and an FL cable pair installed in each span line. One FL filter is used for all repeaters installed in a single housing (with a maximum of 25 two-way repeaters per housing).
  • Page 55 Testing Page 55 of 60 The FL filter is a narrow band selective filter centered at one of 12 audio frequencies. The output of each repeater in the housing is bridged across the input of the respective FL filter. The outputs of all filters in a span are connected to the common FL cable pair.
  • Page 56 Page 56 of 60 Testing 553-2601-200 Standard 4.00 April 2000...

  • Page 57: Index

    Page 57 of 60 Index Numerics cables cable C designations, 44 1.544-MHz clock, 18 cable D designations, 45 1.5-ms timeout, 41 engineering specifications, 36 2.048-MHz clock, 18 length limits for binder groups, 40 500/2500 type telephones length/AWG requirements, 39 connections for, 43 types used, 22 emergency transfer, 11 See also cable pairs;...
  • Page 58 Page 58 of 60 Index carrier shelves engineering specifications 5/12-V converter cards, 20 carrier compatibility, 36 cabling, 27 carrier interface, 35 described, 9 QBL14 requirements, 22 QPC67 card requirement, 20 fault isolation, 51 types available, 15 features. carrier shelf, 17 See also shelf positions filters.
  • Page 59 Index Page 59 of 60 local locations ORB (office repeater bay) cabinet types required, 15 and carrier shelf requirements, 10 cable C designations, 44 locations in RPE system, 13 cable D designations, 45 powering line repeaters, 35 installing RPE equipment at, 24 services provided by, 10 maximum distance from remote equipment, 35 output pulse characteristics, 38...
  • Page 60 Page 60 of 60 Index QPC84 Power Monitor Card, 11 QPC85 5/12-V Converter Card, 20 shelf positions QPC99 Carrier Interface Card for 5/12-V converter cards, 20 described, 21 for QPC62 cards, 17 in-house RPE installations, 39 for QPC63 cards, 18 maintenance jacks/looping switches, 53 for QPC65 cards, 19 option switches, 11, 31...
  • Page 62 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. Publication number: 553-2601-200 Document release: Standard 4.00...

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