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Charles 31929E Product Information Manual

Powering t1 network interface unit (niu)
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STS 3192-9E Powering T1 Network Interface Unit (NIU)
r
Recognized under Underwriters Laboratories Standard 1459, Second Edition*
CONTENTS
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e1999 Charles Industries Ltd.
CLEI is a trademark of Bell Communications Research, Inc.
All rights reserved. Printed in United States of America.
The availability of features and technical specifications herein subject to change without notice.
Charles Industries, Ltd.
CLEIt Code: T1STETT1AA
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Figure 1. 3192-9E Powering T1 NIU
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PWRG
T1
NIU
3192-9E
FA
NET
LOS
CI
LOS
LB
ESF
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WESCOM
91-31929E
ISS. 2
Section 319-29E-202
Equipment Issue 2
Third Printing, June 1999
PAGE
Page 1 of 14
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3
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9
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Summary of Contents for Charles 31929E

  • Page 1: Table Of Contents

    ........... PWRG 3192–9E WESCOM 91–31929E ISS. 2 Figure 1. 3192–9E Powering T1 NIU Section 319–29E–202...

  • Page 2: Part 1. General

    Section 319–29E–202 GENERAL Document Purpose This document provides general, circuit, and testing information for the Charles Industries Span Termination Sys- tem (STS) 3192–9E Powering T1 Network Interface Unit (NIU), shown in Figure 1. The 3192–9E is a member of the Charles Industries STS–3192 family of high density span termination equipment. For additional information on the STS–3192 System, see sections 319–211–100 and 319–211–200.

  • Page 3: Part 2. Application Engineering

    APPLICATION ENGINEERING The 3192–9E is ideally suited for use in provisioning T1 High Capacity Digital Service (HCDS) from lightwave-fed building Remote Terminals located at customer premise locations. See Figure 2 for a typical application. The 3192–9E, used as adjunct equipment to the Lightwave Multiplexer, provides transmission loopback for mainte- nance activities.

  • Page 4: Part 3. Circuit Description

    Section 319–29E–202 The 3192–9E input current is highly dependent on application. Those applications that require the 3192–9E to power a customer’s CSU will require a greater input current. Table 1 shows input current and heat release versus the equivalent series simplex resistance (at 60mA) present on the CI side of the unit.
  • Page 5 Figure 4. 3192–9E T1 Powering NIU Block Diagram IDLE STATE 1 RECEIVE RECEIVE LOOPUP SIG- LOOPDOWN NAL FROM SIGNAL FROM NETWORK NETWORK OR MLB OR MLB 20 MIN. TIMEOUT LOOPBACK STATE 2 Figure 5. 3192–9E Operational State Table DETECT LOS FROM CUSTOMER INTERFACE DETECT SIGNAL PRESENT CUSTOMER INTERFACE...
  • Page 6 Section 319–29E–202 0.6V Figure 6. 3192–9E Front Panel Features and Options Location Table 2. 3192–9E Front Panel Options Description Feature/Option Location FA (Fuse Alarm) Front Panel NET LOS (Loss of Front Panel Signal) CI LOS (Loss of Front Panel Signal) LB (Loopback) Front Panel ESF (Extended...
  • Page 7 Signal Transmission Paths In the idle (Looped down) mode, the signal from the network is coupled to the unit and routed through the trans- mit pad circuit. Switch S4 mounted on the circuit pack is used to adjust the transmit pad which consists of two cascaded 7.5dB sections, allowing transmit path losses of 0, 7.5 and 15dB.
  • Page 8 Section 319–29E–202 Transmit And Receive Signal Detectors The 3192–9E provides Monitoring Signal Detectors on the transmission paths. These detectors provide a mainte- nance aid for installation and troubleshooting. Network Side Signal Detector This detector monitors the unit’s transmit path and looks for signal activity from the network. When a LOS (Loss Of Signal) is detected, as indicated by receipt of 175 +75 consecutive zeros, it will illuminate the front panel NET LOS LED.

  • Page 9: Part 4. Inspection

    INSPECTION Inspect the equipment thoroughly upon delivery. If the equipment has been damaged in transit, immediately re- port the extent of damage to the transportation company. Wescom equipment is identified by a model and issue number imprinted on the front panel or located elsewhere on the equipment.

  • Page 10: Part 7. Testing

    Section 319–29E–202 S2 — Front Panel MLB Push Button S2 is a recessed, front-panel push-button switch used to manually activate or deactivate loopback. Momentarily depress the MLB (Manual Loopback) push-button switch to activate or deactivate a loopback condition. S3 — LOS ALM and AIS Enable/Disable S3 is a two-section dip switch that interacts with the transmit and receive signal detectors on the 3192–9E.
  • Page 11 Step Action Momentarily operate the 3192–9E front panel MLB pushbutton switch. Momentarily operate the 3192–9E front panel MLB push-button switch. Connect the TBERD-209 RCV to the Network In- terface OUT or ‘Transmit’ (this point will vary by installation. The intent is to access pins F and 6 of the 3192–9E card-edge-connector).

  • Page 12: Part 8. Technical Assistance

    Section 319–29E–202 TECHNICAL ASSISTANCE Technical Assistance — U.S. If technical assistance is required, contact Charles Industries’ Technical Services Center at: 847–806–8500 847–806–8556 (FAX) 800–607–8500 techserv@charlesindustries.com (e-mail) Technical Assistance — Canada Canadian customers contact: 905–821–7673 (Main Office) 905–821–3280 (FAX) WARRANTY & CUSTOMER SERVICE Warranty Charles Industries, Ltd.

  • Page 13: Part 10. Specifications

    2. Include the following information: – Company name and address – Contact name and phone number – Inventory of equipment being shipped – Particulars as to the nature of the failure – Return shipping address 3. Ship the equipment, purchase order, and above-listed information, transportation prepaid, to the ser- vice center address shown below.
  • Page 14 Section 319–29E–202 (c) ESF DATA LINK: The bit-oriented command and response message 0 001001 0 11111111 for 16 milli- seconds to loop up. The bit-oriented command and response message 0 010010 0 11111111 for 16 milliseconds to loop down. (d) LOOPBACK TIMEOUT: 20 Minutes 10.1.2.

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