Black Box LT0009A Manual
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Black Box LT0009A Manual

Black Box LT0009A Manual

Lobe access unit
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FEBRUARY 1997
LT0009A
LT0009A-UTP
Lobe Access Unit
CUSTOMER SUPPORT INFORMATION
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
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com

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Summary of Contents for Black Box LT0009A

  • Page 1 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 Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com...

  • Page 2: Trademarks Used In This Manual

    LOBE ACCESS UNIT TRADEMARKS USED IN THIS MANUAL IBM is a registered trademark of IBM Corporation. All applied-for and registered trademarks are the property of their respective owners.

  • Page 3: Declaration Of Conformity

    LOBE ACCESS UNIT DECLARATION OF CONFORMITY The products listed in this manual conform to the following standard(s) or other normative document(s): EMC: EN 55022 (1994): Limits and methods of measurement of radio disturbance characteristics of information technology equipment. EN 50082-1 (1992): Electromagnetic compatibility—Generic immunity standard for residential, commercial, and light industry.

  • Page 4: Federal Communications Commission

    LOBE ACCESS UNIT FEDERAL COMMUNICATIONS COMMISSION INDUSTRY CANADA 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 LOBE ACCESS UNIT 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 LOBE ACCESS UNIT calor como radiadores, registros de calor, estufas u otros aparatos (incluyendo amplificadores) que producen calor. 11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación, o como se indique en el aparato.

  • Page 7: Specifications

    LOBE ACCESS UNIT 1. Specifications Operating Voltage — 4.5 ±0.7 volts 1.0 mA @ 5 VDC Operating Current — Resistance TX to RX — 4.8 ±0.2 kΩ Insertion Time — 5 seconds Removal Time — 50 to 200 msec Insertion Loss (Maximum) — 0.5–4 MHz 4–16 MHz 16–32 MHz SUB TX to SUB RX...
  • Page 8 40 dB 28 dB 25 dB Electrical Connectors — LT0009A: MAIN: (1) DB9 female; SUB-1 through -4: (1) DB9 male each; LT0009A- UTP: MAIN: (1) RJ-45 female; SUB-1 through -4: (1) RJ-45 female each Indicators — (4) Red LEDs; lobe activity MTBF —...
  • Page 9 Lobe Access Unit. Or, an internal switch enables the Lobe Access Unit to operate as a standalone access unit. (See Figure 2-1.) The LT0009A has five ports, each using DB9 connectors. The MAIN port is female, and the four sub-ports are male. The LT0009A-UTP also has five ports, but these use RJ-45 connectors.
  • Page 10 LOBE ACCESS UNIT To ensure proper operation, you’ll need to use an initialization tool (our part number LT037) during the initial setup. This will need to be ordered separately. The Lobe Access Unit is small, lightweight, and easy to install. No strapping adjustments or external power supply are required.
  • Page 11 LOBE ACCESS UNIT 2.2 Features • Allows a single lobe to accommodate four workstations. • Operates at 4 or 16 Mbps. • Compatible with IBM ® Token Ring and complies with IEEE 802.5. • LED indicators monitor active workstations. • Easy installation, wall-mountable. •...

  • Page 12: Installation

    LOBE ACCESS UNIT 3. Installation 3.1 Set-Up Procedures Before connecting the unit to the network, use the initialization tool (LT037, sold separately) as follows: 1. Connect the initialization tool to the port labeled SUB-1 for about 10 seconds. 2. The two LEDs on the initialization tool should light up and then fade.
  • Page 13 The Lobe Access Unit does not require any external power; only data cables should be connected to the unit. LT0009A uses Type 1 cables, and LT0009A-UTP uses Type 3 cables. Use the steps below to install the unit in the token ring.
  • Page 14 LOBE ACCESS UNIT size or manufacturer “estimates.” In most cases, Type 1 should not exceed 269 feet (82 m), and Type 3 should not exceed 98.4 feet (30 m) at 4 MB (MAU to MAIN port). 3.4 Cable Pinouts DB9 Male Black Orange Green...
  • Page 15 LOBE ACCESS UNIT Lobe Access Workstation Unit/Sub Lobe Access Unit/Main...

  • Page 16: Operation

    LOBE ACCESS UNIT 4. Operation When all required connections are made (as described in Chapter 3), the unit’s operation becomes completely automatic and unattended. Upon request of the token-ring adapter card, the Lobe Access Unit inserts the corresponding workstation into the network ring, lighting the LED adjacent to the connector.

  • Page 17: Troubleshooting

    LOBE ACCESS UNIT 5. Troubleshooting 5.1 Fault Isolation and Troubleshooting NOTE It’s assumed in this section that the workstation is active (that is, requests to be inserted into the ring). SYMPTOM ACTION Corresponding LED is ON. 1. Check the switch for proper Workstation remains out of position (see Section 3.2).
  • Page 18 It contains no user-serviceable parts. Contact Black Box at 724-746-5500. Before you do, make a record of the history of the problem. Black Box will be able to provide more efficient and accurate assistance if you have a complete description, including: •...
  • Page 19 • If you are shipping the Lobe Access Unit for repair, make sure you include everything that came in the original package. Before you ship, contact Black Box to get a Return Materials Authorization (RMA) number.
  • Page 20 © Copyright 1997. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...

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