Black Box LZ1500A-R3 Manual
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Black Box LZ1500A-R3 Manual

Black Box LZ1500A-R3 Manual

Long-distance repeaters
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© Copyright 2000. Black Box Corporation. All rights reserved.
1000 Park Drive
•
Lawrence, PA 15055-1018
•
724-746-5500
•
Fax 724-746-0746

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Summary of Contents for Black Box LZ1500A-R3

  • Page 1 © Copyright 2000. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...
  • Page 2 Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 SUPPORT Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 INFORMATION Web site: www.blackbox.com • E-mail: info@blackbox.com...
  • Page 4 UTP AND THIN ETHERNET REPEATERS FEDERAL COMMUNICATIONS COMMISSION CANADIAN DEPARTMENT OF COMMUNICATIONS RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication.
  • Page 5 UTP AND THIN ETHERNET REPEATERS NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
  • Page 6 UTP AND THIN ETHERNET REPEATERS 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato.

  • Page 7: Table Of Contents

    UTP AND THIN ETHERNET REPEATERS CONTENTS 1. Specifications ..........5 2.

  • Page 8: Specifications

    UTP AND THIN ETHERNET REPEATERS 1. Specifications Protocol—Protocol-independent (Ethernet V2, IEEE 802.3) Indicators—LZ1500A-R2: (2) LEDs: (1) BNC (Thin Ethernet), (1) RJ (UTP port) to indicate status; LZ1502A-R2: (4) LEDs: (2) BNC (Thin Ethernet), (2) RJ (UTP port) to indicate status; LZ1503A-R4: (3) LEDs: (1) BNC (Thin Ethernet), (1) RJ (UTP port), (1) 10BASE-T port to indicate status;...

  • Page 9: Introduction

    Ethernet system. 2.2 What’s in the Box All the Repeaters come in kits. The contents of each kit are listed below. LZ1500A-R3: • (1) LZ1500A-R2 Repeater • (1) SP528A surge protector • A mounting kit with Velcro strips for wall mounting and rubber feet ®...

  • Page 10: Networking Terminology

    1 Amp • This user’s manual If you do not find all of these components in the box, please call Black Box at 724-746-5500. 2.3 Networking Terminology The world of computer networking is full of unique terminology. You will come across some of that terminology in this manual. If you are new to networking and do not understand a term used here, please refer to the glossary in Chapter 7.

  • Page 11: Quick-Start Installation Guide For Utp Repeaters And Hubs

    UTP AND THIN ETHERNET REPEATERS 3. Quick Start Installation Guide for UTP Repeaters and Hubs If you are an experienced network installer and would like to install your long distance connection immediately, follow these steps. For more detailed installation instructions, turn to Chapter 5. 3.1 Equipment Protection You must be extremely careful to ensure the safety of persons and equipment whenever using wires that run between buildings.

  • Page 12: Utp Repeaters Quick Start Installation

    UTP AND THIN ETHERNET REPEATERS If you have any questions about which protection devices to use, call Black Box Technical Support at 724-746-5500. 3.2 UTP Repeaters Quick Start Installation 1. Install the repeaters in the wiring closet, near the central punch down block or patch panel.
  • Page 13 UTP AND THIN ETHERNET REPEATERS • Connect 10BASE2 segment(s) directly to the Repeater as if each port is a 50 ohm terminator. (Do not connect in the middle of a segment or use a BNC “T” connector.) • When a segment is properly attached and the far end of the segment is properly terminated, the LEDs will cease alternating.
  • Page 14 UTP AND THIN ETHERNET REPEATERS RG58 A/U Coax Terminator Repeater RG58 A/U Coax Terminator Up to 1,500 feet single UTP Repeater Fig. 3-2. NIC Termination Enabled. 10. There can be no more than two connections in line in the network without reclocking.

  • Page 15: Installing Long Distance Repeaters

    UTP AND THIN ETHERNET REPEATERS 4. Installing Long Distance Repeaters This chapter explains how to install Long Distance Repeaters. The installation consists of 5 major steps: 1. Creating a site plan and marking the location of network connections and wiring closets. 2.

  • Page 16: About The Wiring Closet

    UTP AND THIN ETHERNET REPEATERS Fig. 4-2. RJ-11 Crimping Tool. • An RJ-11 crimping tool • A Phillips head screwdriver • An ohmmeter You can obtain tools and parts from your dealer. 4.2 About the Wiring Closet A Repeater is typically installed in a wiring closet to make it possible to connect the phone wires carrying network signals to the repeater with short patch cables.

  • Page 17: Patch Cables

    UTP AND THIN ETHERNET REPEATERS 4.4 Patch Cables A patch cable connects each phone-wire pair to a Repeater port. Each patch cable extends from the port to the phone punchdown block containing the phone-wire connection. You must make your own patch cables for an installation, or obtain them from your dealer.
  • Page 18 UTP AND THIN ETHERNET REPEATERS Building One Repeater to building 2 (ThinNet Ports) Building Two Repeater Building Three Repeater Retiming Repeater Repeater Building Four Repeater Building Five Repeater Fig. 4-4. Connecting Multiple Links.

  • Page 19: Installation Steps

    UTP AND THIN ETHERNET REPEATERS 4.6 Installation Steps Before attempting to install your Repeaters, you must have the tools and parts on hand to complete the operation. Please read Section 5.1. 4.6.1 E QUIPMENT ROTECTION NOTE You must be extremely careful to ensure the safety of persons and equipment whenever using wires that run between buildings.

  • Page 20: Prepare The Site Plan

    UTP AND THIN ETHERNET REPEATERS 4.6.2 P REPARE THE 1. Find or create a site plan. It must show the location of one or more phone closets where the Repeaters will be installed. 2. On the plan, mark the location of devices (hubs, concentrators, etc.) to be interconnected.

  • Page 21: Measure Phone Wire

    UTP AND THIN ETHERNET REPEATERS To Repeater To Repeater To Repeater To Repeater A third point cannot be tied into the link. Fig. 4-6. Identifying Wire Pairs. 4.6.3 M EASURE HONE Measure the lengths of phone wire that will connect the Repeaters using an ohmmeter.
  • Page 22 UTP AND THIN ETHERNET REPEATERS Table 4-1. Wire Table (for LZ150x Series). Gauge Max. Resistance (for 1500 ft.) 24 GA 75 Ω NOTE: Wire smaller than 24 gauge is not recommended, and any wire used must be 100-ohm impedance unshielded twisted pair. Telephone wire connected between two Repeaters may span up to 1,500 feet (457.2 m) in length.

  • Page 23: Install Utp Repeaters And Attach Patch Cables

    UTP AND THIN ETHERNET REPEATERS 4.6.4 I UTP R NSTALL EPEATERS AND TTACH ATCH ABLES 1. Install the Repeaters in the wiring closet, near the central punchdown block or patch panel. You can mount them with Velcro strips or screw them to the wall with wall mount brackets.
  • Page 24 UTP AND THIN ETHERNET REPEATERS Punch Down Block Punch Down Block To UTP Port To UTP Port Fig. 4-9. Punchdown Block Connection. 4. Attach all patch cables to the repeater port(s) and phone block onto the spots identified in the previous section. The LEDs will continue to alternate until both ends of the link are powered up and connected together.
  • Page 25 UTP AND THIN ETHERNET REPEATERS Building/Location One Punch Down Block Existing Hub To Stations RJ11 Existing Building/Location Two Phone Wire Punch Down Block Existing Hub To Stations RJ11 Fig. 4-10. LZ150xA Series Hub-to-Hub Connection.

  • Page 26: Install 10Base2 Thin Coax And Aui Segments

    UTP AND THIN ETHERNET REPEATERS 4.6.5 I 10BASE2 T NSTALL OAX AND SEGMENTS NOTE For safety, IEEE 802.3 10BASE2 Ethernet specifications call for each segment to be connected at one point to an earth ground, such as a cold water pipe. To simplify your systems installation, we have internally connected the port grounds in our repeaters, and recommend that the earth ground connection be made from only one of the ports on the repeater.
  • Page 27 UTP AND THIN ETHERNET REPEATERS in addition to the termination provided by the repeater that segment of the network will not operate properly. Some Network Interface Cards (NICs), hubs, and adapters have terminators built in that can be enabled or disabled via jumpers. Make sure that only the NIC at the end of the segment farthest from the Repeater has its termination enabled and that all the rest are disabled.
  • Page 28 UTP AND THIN ETHERNET REPEATERS Building/Location One Punch Down Block Existing Hub To Stations Terminator RJ11 Existing Building/Location Two Phone Wire Punch Down Block Existing Hub To Stations Terminator RJ11 Fig. 4-13. Hub-to-Hub Connection With Termination.
  • Page 29 UTP AND THIN ETHERNET REPEATERS AUI Port Connections An AUI (Attachment Unit Interface) port is available on the LZ1504A to attach the repeaters to an MAU (Media Attachment Unit) on a 10BASE5 backbone. The AUI port can also be used with a plug-in microtransceiver to attach to other media, such as 10BASE-T or fiber-optic networks.

  • Page 30: Monitoring And Troubleshooting

    UTP AND THIN ETHERNET REPEATERS 5. Monitoring and Troubleshooting Solving network problems is easy once you learn a few basics. If you find that the information in this chapter does not address a problem you are having with your network, call Technical Support. Besides software issues, the most common network problems are cable faults, accounting for over 75% of all network hardware problems.

  • Page 31: Troubleshooting

    UTP AND THIN ETHERNET REPEATERS • A length of phone wire is connected, but there is nothing at the other end of the line. • A length of phone wire is connected, but there is a short circuit in the cable at or near the repeater.
  • Page 32 UTP AND THIN ETHERNET REPEATERS Action: 1. Check that the cable is completely plugged in and the modular plug is properly attached. Cause: 2. A length of phone wire is connected but there is nothing at the far end of the line. Action: 2.

  • Page 33: Hints And Tips

    UTP AND THIN ETHERNET REPEATERS Cause: 2. The wires are shorted at a point more than 100 feet (30.5 m) from either repeater. Action: 2. Check the LED on the other repeater. If it is red, unplug the phone wire and using an ohmmeter, check for a short and repair as necessary.
  • Page 34 UTP AND THIN ETHERNET REPEATERS Distance Repeaters. • Some repeaters and network interface cards contain an internal 50- ohm terminator that is connected to the Thin Ethernet leg by means of an on-board jumper. If this terminator is in place and there is a second, external terminator and a coax connection on the coax leg (for a total of 3), the repeater will not allow the connection to become active.

  • Page 35: Glossary

    UTP AND THIN ETHERNET REPEATERS 6. Glossary Asynchronous Communication—A data transmission method in which a packet of data is sent, and the receiver stations synchronize their clocks to the timing embedded in the packet. AUI Port—Attachment Unit Interface port for connecting additional network hardware.
  • Page 36 UTP AND THIN ETHERNET REPEATERS Crosstalk—The electrical interference between signals transmitted on adjacent wires. Coaxial Cable—This cable consists of an inner core of wiring that conducts electrical signals, surrounded by an outer conductor that is the return path. An outer covering protects the wiring. 10BASE2 Ethernet systems use 50-ohm RG58A/U coaxial cable.
  • Page 37 UTP AND THIN ETHERNET REPEATERS (address, enabling and disabling functions, etc.). LED—Light emitting diode. Link Integrity Test—A signal sent on a line to verify connection when there is no traffic on the line. Local Area Network (LAN)—A computer-based communications system confined to a defined local area is a LAN.
  • Page 38 UTP AND THIN ETHERNET REPEATERS Retiming Repeater—A repeater that reclocks an electrical signal and amplifies the signal for retransmission. Router—A device that connects two networks of different protocols together and maintains addressing information for each network. Workstations can pass information from one network to another by sending the information through the router.
  • Page 39 UTP AND THIN ETHERNET REPEATERS lengths, with standard N-series male connectors installed on each end. It also is available in bulk, but bulk cable does not include connectors. Thin Ethernet Cable—This is a special type of coaxial cable (RG58A/U 50- ohm), available in a variety of lengths, with or without connectors installed.

This manual is also suitable for:

Lz1502a-r3Lz1503a-r4Lz1504a-r3

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