Nortel NT2H57UG Installation Manual
  1. Manuals
  2. Brands
  3. Nortel Manuals
  4. Enclosure
  5. NT2H57UG
  6. Installation manual
Nortel NT2H57UG Installation Manual

Nortel NT2H57UG Installation Manual

Broadband access & video networks video codec enclosure (vce)
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
NT2H57UG
323-3221-291
Broadband Access & Video Networks
Video Codec Enclosure
(VCE)
Installation Manual
Standard Rel 1.0 July 1995

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the NT2H57UG and is the answer not in the manual?

Questions and answers

Related Manuals for Nortel NT2H57UG

Summary of Contents for Nortel NT2H57UG

  • Page 1 NT2H57UG 323-3221-291 Broadband Access & Video Networks Video Codec Enclosure (VCE) Installation Manual Standard Rel 1.0 July 1995...
  • Page 3 Video Codec Enclosure (VCE) Installation Manual Publication number: 323-3221-291 Product release: Rel 1.0 Publication status: Standard PEC: NT2H57UG Date: July 1995 © 1995 Northern Telecom All rights reserved. DV-45 is a trademark of Northern Telecom Installation Manual 323-3221-291 Rel 1.0 Standard...
  • Page 4 Publication history July 1995 Standard issue for general release. Video Codec Enclosure (VCE) 323-3221-291 Rel 1.0 Standard...

  • Page 5: Table Of Contents

    Contents Introducing a VCE 1–1 What is a VCE? 1–1 Regulations 1–1 Physical characteristics 1–2 Cabinet weight 1–2 External dimensions 1–2 Cabinet cover 1–3 Mounting options 1–3 Alarm indicators 1–3 VCE components 1–3 DV-45 shelf 1–4 Power supply 1–4 Signal and power interface panel 1–5 Ordering VCE components 1–7 Ordering examples 1–7 Installing a VCE...
  • Page 6 iv Contents Optical fibers 4–3 Laser radiation 4–3 Bending optical fibers 4–3 Handling optical fibers 4–3 Splicing optical fibers 4–4 Repairing optical fibers 4–4 Video Codec Enclosure (VCE) 323-3221-291 Rel 1.0 Standard...

  • Page 7: Introducing A Vce

    A VCE meets all regulatory requirements for the Underwriters Laboratories (UL), Canadian Standards Association (CSA), and the Federal Communication Commission (FCC) when equipped with the standard application configurations provided by Northern Telecom (Nortel). CAUTION Equipment within a VCE has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.

  • Page 8: Physical Characteristics

    1-2 Introducing a VCE In addition, when equipped with standard application configurations, a VCE meets the following non-regulatory requirements: • Earthquake Zone 4 upper floor—Bellcore NEBS TR-NWT-000063 • Office vibration—Bellcore NEBS TR-NWT-000063 • Transportation vibration—Bellcore NEBS TR-NWT-000063 • Drop test—Bellcore NEBS TR-NWT-000063 •...

  • Page 9: Cabinet Cover

    Introducing a VCE 1-3 Cabinet cover A one-piece, three-sided cover is used on a VCE. The cover is secured by four hex-socket screws on the front of the VCE and is designed to slide completely off of the unit. Slots are provided in the lower-rear corners of the cover to facilitate removal with a standard screwdriver.

  • Page 10: Dv-45 Shelf

    1-4 Introducing a VCE DV-45 shelf The DV-45 shelf has eleven slots for equipment. All cards are inserted into the DV-45 shelf from the left side of the VCE (after the cover is removed). A typical card configuration for a basic Digital Video Learning Network (DVLN) room application is shown in Figure 1-3.

  • Page 11: Signal And Power Interface Panel

    Introducing a VCE 1-5 Signal and power interface panel A signal and power interface panel is provided on the top-right side of the VCE (see Figure 1-2 on page 1-3). There are two versions of the signal interface panel (see Figure 1-4 and Figure 1-5). See Table 1-1 for connector pinouts. Figure 1-4 Knockout interface panel (included in PEC NT2H57AA) FIBER...
  • Page 12 1-6 Introducing a VCE Table 1-1 Connectorized interface panel—connector pinouts Connector Pin # Signal (DV-45 connection) Cable Color Audio Outputs1-4 Ground (Decoder/Program Ch1 G) Ground lead Cable NT2H5726 Signal (Decoder/Program Ch1 +) Signal (Decoder/Program Ch1 -) Black Audio Inputs 1-4 Ground (Coder/Program Ch1 G) Ground lead Cable NT2H5728...

  • Page 13: Ordering Vce Components

    Introducing a VCE 1-7 Ordering VCE components Table 1-2 shows the standard equipment, kits, and optional equipment available with a VCE. We recommend that you carry at least one spare power supply. For ordering other DV-45 equipment, refer to the DV-45 Reference Manual , PEC NT2H7902.
  • Page 14 1-8 Introducing a VCE Video Codec Enclosure (VCE) 323-3221-291 Rel 1.0 Standard...

  • Page 15: Installing A Vce

    If there are any packages missing from the shipping order, contact your shipping agent or Northern Telecom (Nortel) immediately (the phone numbers are on the shipping order). The cabinet may be transported to the installation site by hand-truck or carried by two people.

  • Page 16: Mounting A Vce

    2-2 Installing a VCE Mounting a VCE A VCE must only be installed by trained service personnel and all electrical connections to the main ac-supply must be made by a licensed electrician following all the relevant local electrical codes. Where a direct connection is made to the main ac-power supply, a double-pole manual disconnect device must be used.

  • Page 17: Free-Standing Installation

    Installing a VCE 2-3 Procedure 2-1 Free-standing installation Use this procedure to install a VCE free-standing on the floor; see Figure 2-1 on page 2-1 for clearances. This procedure assumes that the VCE is close to a standard 120 Vac 15 A power outlet and is connected to it by the attached 10 ft ac-power cord.
  • Page 18 2-4 Installing a VCE Procedure 2-1 (continued) Free-standing installation Step Action Unbolt the VCE from its transport pallet. Move the VCE to its final position in the equipment lineup and level the unit by adjusting the levelling feet. Connect the power cable to the 120 Vac 15 A power outlet. Note: The power should be disconnected at the power supply breaker panel.

  • Page 19: Cabinet Installation (Zone 4 Earthquake)

    Installing a VCE 2-5 Procedure 2-2 Cabinet installation (Zone 4 earthquake) Use this procedure to install a VCE where Zone 4 earthquake protection is required, that is, the VCE is bolted to the floor; see Figure 2-1 on page 2-1 for clearances and location information.
  • Page 20 2-6 Installing a VCE Procedure 2-2 (continued) Cabinet installation (Zone 4 earthquake) Step Action Mark the VCE anchor points as shown in Figure 2-3. Figure 2-3 VCE anchor points Wall Leveling feet 3.25 in. (85 mm) Anchor points Wall clearance typically 0.75 in.(19 mm) Cabinet...
  • Page 21 Installing a VCE 2-7 Procedure 2-2 (continued) Cabinet installation (Zone 4 earthquake) Figure 2-4 Removing the VCE cover 3 slots on each side of the cover Step Action Unbolt the enclosure from its transport pallet. Move the VCE to its final position in the equipment lineup and level the unit by adjusting the levelling feet.
  • Page 22 2-8 Installing a VCE Procedure 2-2 (continued) Cabinet installation (Zone 4 earthquake) Figure 2-5 Levelling the cabinet VCE cabinet Leveling Anchor foot point Shims Floor Step Action Tighten the anchor bolts using a socket wrench and extension handle. Torque the bolts to 18 ft lbs. Remove the flexible power cable from the enclosure.
  • Page 23 Installing a VCE 2-9 Procedure 2-2 (continued) Cabinet installation (Zone 4 earthquake) Step Action Connect the DV-45 equipment. See the application-specific documentation. Put on an antistatic bracelet to protect the DV-45 cards. CAUTION Risk of damaging electrostatic sensitive devices Avoid touching any components on the printed circuit board.

  • Page 24: Cabinet Installation (Wall Mount)

    2-10 Installing a VCE Procedure 2-3 Cabinet installation (wall mount) Use this procedure to install a VCE on a wall; see Figure 2-1 on page 2-1 for clearance and location information. Note 1: Prior to shipping the cabinet to the site, determine the type of electrical distribution panel and the availability of a suitable 120 Vac, 15 A power supply with a double-pole breaker/isolator.
  • Page 25 Installing a VCE 2-11 Procedure 2-3 (continued) Cabinet installation (wall mount) Figure 2-6 Wall mounting anchor holes and mounting points 16.00 3.00 3.375 4.00 4.00 9.75 4.00 23.00 4.00 9.00 4.00 1.875 0.875 20.50 Legend Mounting points (9) & Anchor holes (16) All dimensions are in inches Step Action...
  • Page 26 2-12 Installing a VCE Procedure 2-3 (continued) Cabinet installation (wall mount) Step Action Note: In order to support the weight of the VCE, the anchor holes must be into a wood stud. If a wood stud is not present in the required position, add a cross-stud between adjacent vertical studs.
  • Page 27 Installing a VCE 2-13 Procedure 2-3 (continued) Cabinet installation (wall mount) Step Action Note: Before removing the flexible power cable from the VCE power terminal block (TB2), note the terminal where each wire is connected. Connect a power cable between a suitable fused isolator on the customer premises and the VCE power block through conduit or armoured cable.
  • Page 28 2-14 Installing a VCE Video Codec Enclosure (VCE) 323-3221-291 Rel 1.0 Standard...

  • Page 29: Installing Vce Components

    Installing VCE components This chapter provides the information required to: • connect the DS3 or optical carrier facilities to units within a VCE • install DV-45 cards into a DV-45 shelf within a VCE • replace a VCE power supply. This chapter does not include information on setting DV-45 card options.

  • Page 30: Connecting Ds3 Carrier Facilities To A Dcs Card

    3-2 Installing VCE components Procedure 3-1 Connecting DS3 carrier facilities to a DCS card This procedure details the steps required to connect DS3 carrier facilities to a data communication synchronization (DCS) card in a DV-45 shelf within a VCE. Requirements •...

  • Page 31: Rel 1.0 Standard

    Installing VCE components 3-3 Procedure 3-1 (continued) Connecting DS3 carrier facilities to a DCS card Figure 3-1 Rear view of DV-45 shelf FW-2361 FW-2361 Position # VIDEO VIDEO VIDEO VIDEO VIDEO VIDEO VIDEO VIDEO OUT/IN IN/OUT OUT/IN IN/OUT OUT/IN IN/OUT OUT/IN IN/OUT VIDEO...

  • Page 32: Connecting Optical Carrier Facilities To A Dmi-F45

    3-4 Installing VCE components Procedure 3-2 Connecting optical carrier facilities to a DMI-F45 A VCE can be equipped with an optional DMI-F45 optical interface module. This module will transmit and receive an optically-coded DS3 to and from a corresponding DMI-F45 optical interface module. This procedure describes how to install the DMI-F45 module and make the DS3 and optical carrier facility connections.
  • Page 33 Installing VCE components 3-5 Procedure 3-2 (continued) Connecting optical carrier facilities to a DMI-F45 Step Action Connect the DS3 cables running from the DV-45 shelf to the DS3 in and out connectors on the front of the DMI-F45 module. Each cable is labeled to indicate whether it is DS3 in or DS3 out.

  • Page 34: Connecting Optical Carrier Facilities To A Dv-Oc3 Unit

    3-6 Installing VCE components Procedure 3-3 Connecting optical carrier facilities to a DV-OC3 unit A VCE can be equipped with an optional DV-OC3 optical interface unit. This unit will transmit and receive optically-encoded OC3 signals. Input and output OC3 fiber optic connections are made using optical connectors at the front of a DV-OC3 unit.
  • Page 35 Installing VCE components 3-7 Procedure 3-3 (continued) Connecting optical carrier facilities to a DV-OC3 unit Action Step Action Remove the 4 cover-retaining screws and slide off the VCE cover. Observe all the precautions described in “Observing safety guidelines” on page 4-1. Put on an antistatic bracelet and attach it to ground. Cleaning optical connectors mated to the DV-OC3 unit Loosen one of the fiber patchcords from the shelf fiber guide to provide sufficient slack.
  • Page 36 3-8 Installing VCE components Procedure 3-3 (continued) Connecting optical carrier facilities to a DV-OC3 unit Step Action Locate the desired subtask: If you are: Then Replacing a patchcord or Remove the existing patchcord from the DV-OC3 performing a test unit. If you are performing a test, cover the end of the patch cord with a clean dust cap as soon as the patchcord has been disconnected.
  • Page 37 Installing VCE components 3-9 Procedure 3-3 (continued) Connecting optical carrier facilities to a DV-OC3 unit Step Action Assembling an ST connector Gently insert the ferrule into the sleeve so that the guide pin enters the guide slot, as shown in Figure 3-5. Rotate the plug retainer so that the retaining pin enters the retaining groove.
  • Page 38 3-10 Installing VCE components Procedure 3-3 (continued) Connecting optical carrier facilities to a DV-OC3 unit Figure 3-6 SC connector assembly FW-2968 Plug retainer Ferrule Guide pin FW-2968 Guide slot Step Action Insert each patchcord into the shelf fiber guide. Check the optical output power and the integrity of the optical cables using standard optical testing procedures.

  • Page 39: Installing Cards In A Dv-45 Shelf

    Installing VCE components 3-11 Procedure 3-4 Installing cards in a DV-45 shelf This procedure describes how to install DV-45 cards in a DV-45 shelf within a VCE after the option switches have been set. Card option switch settings are application specific (refer to the DV-45 Reference Manual , PEC NT2H7902). Typically, a DV-45 shelf can be provisioned to support: •...
  • Page 40 3-12 Installing VCE components Procedure 3-4 (continued) Installing cards in a DV-45 shelf Step Action Attach the antistatic bracelet to ground or use an antistatic mat. On the left side of the VCE, remove the locking bar from the DV-45 shelf as shown in Figure 3-8.
  • Page 41 Installing VCE components 3-13 Procedure 3-4 (continued) Installing cards in a DV-45 shelf Figure 3-9 Card positions in a DV-45 shelf with a single drop/insert configuration FW-2483.2 Position # Coder Decoder Figure 3-10 Card positions in a DV-45 shelf with a dual drop/insert configuration FW-2483.7 Position # Coder...
  • Page 42 3-14 Installing VCE components Procedure 3-4 (continued) Installing cards in a DV-45 shelf Figure 3-11 Card positions in a DV-45 shelf with a single drop/insert, two unidirectional video channels, and an OC3 connection configuration FW-3101.1 Position # CAUTION Coder Decoder Decoder Decoder —end—...

  • Page 43: Replacing A Power Supply

    Installing VCE components 3-15 Procedure 3-5 Replacing a power supply Use this procedure to replace the VCE power supply. The power supply is accessed from the right side of the VCE and below the DV-45 shelf. Tools 1 5/32 in. Allen key 1 Flat-bladed screwdriver 1 Antistatic bracelet Action...
  • Page 44 3-16 Installing VCE components Procedure 3-5 (continued) Replacing a power supply Step Action Remove the 4 retaining screws and lift off the power supply cover (see Figure 3-13). Remove the 5 screws that secure the power supply unit to the VCE. Lift the power supply out of the VCE.

  • Page 45: Observing Safety Guidelines

    Observing safety guidelines This chapter describes the precautions that should be observed for the following: • handling and working with DV-45 shelves • handling, storing, installing, and replacing DV-45 units • handling, splicing, and repairing optical fibers DV-45 shelf The following precaution must be taken when handling and working with a DV-45 shelf (this includes the external DLT or VCE cabinet, the DV-45 shelf that is mounted inside the cabinet, and DV-45 units).

  • Page 46: Handling Units

    4-2 Observing safety guidelines Handling units The following precautions must be taken when handling DV-45 units: • Wear a skin-contact antistatic bracelet when handling all units that are sensitive to static electricity. This bracelet consists of an expandable wrist strap and grounding cord; its function is to dissipate charges to ground. •...

  • Page 47: Laser Radiation

    Observing safety guidelines 4-3 Optical fibers Optical fibers are either single or multiple strand. The following information and precautions apply to all fibers. Laser radiation All Northern Telecom optical products and associated optical test sets use laser sources that emit light energy into fiber cables. This energy is within the red (visible) and infrared (invisible) regions of the electromagnetic spectrum.
  • Page 48 4-4 Observing safety guidelines • Wipe clean or wash your hands after handling optical fibers. Small bits of glass are almost invisible and can damage your eyes. DANGER Risk of eye injury If there is any suspicion of a glass chip in your eye, seek medical attention at once.
  • Page 50 Broadband Access & Video Networks Video Codec Enclosure (VCE) Installation Manual © 1995 Northern Telecom All rights reserved Information subject to change without notice NTP number: 323-3221-291 PEC: NT2H57UG Rel 1.0 Standard July 1995 Printed in Canada...

Table of Contents