Related Manuals for Black Box LT0007A-2U
Summary of Contents for Black Box LT0007A-2U
- Page 1 © 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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Page 2: Customer Support Information
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com... -
Page 4: Federal Communications Commission
SMART 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. It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart B of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference... -
Page 5: Instrucciones De Seguridad
SMART 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 SMART LOBE ACCESS UNIT 10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de 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.
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Page 7: Trademarks Used In This Manual
SMART LOBE ACCESS UNIT TRADEMARKS USED IN THIS MANUAL IBM is a registered trademark of International Business Machines Corporation. Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners. -
Page 8: Declaration Of Conformity
SMART 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 9: Specifications
SMART LOBE ACCESS UNIT 1. Specifications Unit Characteristics: Input Voltage — 11 to 35 VDC (12 VDC typical) Input Current — 100 mA @ 12 VDC (2-Port units); 140 mA @ 12 VDC (4-Port units) Operating Current — 140 mA @ 5 VDC (2-Port units);... - Page 10 SMART LOBE ACCESS UNIT Insertion Loss (Maximum) — 0.5–4 MHz 4–16 MHz 16–32 MHz SUB TX to SUB RX 0.65 dB 1.3 dB 2.6 dB MAIN RX to SUB RX 0.85 dB 1.8 dB 3.7 dB SUB TX to MAIN TX 0.85 dB 1.8 dB 3.7 dB...
- Page 11 SMART LOBE ACCESS UNIT 4- or 16-Mbps rate Jumper — selection (4M/16M) Electrical Connectors — For UTP: MAIN and lobes: RJ-45 jack; For Screened UTP: MAIN and lobes: Shielded RJ-45 jack Indicators — (3) or (5) Red LEDs, depending on which unit you have Operating Temperature —...
- Page 12 SMART LOBE ACCESS UNIT 2. Introduction 2.1 Description The Smart Lobe Access Unit allows connection of two or four token-ring workstations to a single lobe. Token-ring-network flexibility is increased by enabling users to expand the topology in a more cost-effective way. Cabling needs and installation costs are reduced by allowing workstations to be added to the ring without the need for additional lobe cables to the central hub.
- Page 13 SMART LOBE ACCESS UNIT cabling. To get Screened UTP cabling from Black Box, ask for Product Code SVNSL60 (stranded) or EVNSL71 (solid, plenum-rated). 2.2 The 2-Port Smart Lobe Access Unit The 2-Port Smart Lobe Access Unit has three ports, each using RJ-45 connectors for UTP or RJ-45 shielded connectors for screened UTP.
- Page 14 SMART LOBE ACCESS UNIT 2.3 The 4-Port Smart Lobe Access Unit The 4-Port Smart Lobe Access Unit has five ports, each using RJ-45 connectors for UTP or RJ-45 shielded connectors for screened UTP. Their functions are explained in the table below. Table 2-2.
- Page 15 SMART LOBE ACCESS UNIT 2.4 Applications The Smart Lobe Access Unit’s primary application is to double or quadruple a single lobe’s capacity. Using the Smart Lobe Access Unit reduces cabling costs. If there is a wire fault, the entire lobe access unit is removed from the main ring.
- Page 16 SMART LOBE ACCESS UNIT A single 2-Port Smart Access Lobe enables connection of two workstations to a lobe or a single 4-Port Smart Access Lobe enables connection of four workstations to a lobe. A typical application is shown in the illustration on the next page. The main lobe cable (L) running from the distribution panel located at the wiring closet to the faceplate located at the workstation’s area is low-cost unshielded IBM...
- Page 17 SMART LOBE ACCESS UNIT Distribution Panel Smart Lobe Access Unit (2-Port) Faceplate P(max) + L(max) ≤ 90 m with IBM Type 3, (Level IV and V) and screened UTP cables Figure 2-2. Recommended Maximum Cable Lengths (16 Mbps).
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Page 18: Installation
SMART LOBE ACCESS UNIT 3. Installation 3.1 Site Preparation Workstation Patch Point #1 Main Cable Patch Point #2 Smart Lobe Access Unit (4-Port) Figure 3-1. Smart Lobe Access Unit Application. - Page 19 SMART LOBE ACCESS UNIT UTP ( RJ-45 USING CONNECTORS Use a standard four-position (two twisted pairs) UTP or screened UTP cables for all connections. Orange Green Black MAU/RJ-45 Lobe MAU/RJ-45 Lobe Figure 3-2. Cable Wiring. EMOTE OWER EEDING The illustration below shows an example using 8-wire UTP cabling.
- Page 20 SMART LOBE ACCESS UNIT Connect pin 1 of the eight-wire UTP cable to the positive terminal and pin 2 of the eight-wire UTP cable to the negative terminal of the power supply. 3.2 Set-Up Procedures The Smart Lobe Access Unit has a rate-selection jumper, set to either 4 or 16 Mbps, that can be accessed by opening the unit box.
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Page 21: Operation
SMART 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 Smart Lobe Access Unit inserts the corresponding workstation into the network ring, lighting the LED adjacent to the connector. -
Page 22: Troubleshooting
SMART LOBE ACCESS UNIT 5. Troubleshooting 5.1 Fault Isolation and Troubleshooting Since this unit is logically controlled by a CPU, here are the things to try if there is any malfunction: 1) Disconnect and then reconnect the power to the unit; 2) Verify that the unit is performing a short test to the LEDs;... - Page 23 It contains no user-serviceable parts. Call Black Box Technical Support at 724-746-5500. Before you do, make a record of the history of the problem. We’ll be able to provide more efficient...
- Page 24 SMART LOBE ACCESS UNIT • the components involved in the problem. • any particular application that, when used, appears to create the problem or make it worse. 5.3 Shipping and Packaging If you need to transport or ship your Smart Lobe Access Unit: •...
- Page 25 SMART LOBE ACCESS UNIT Appendix: Bracket Assembly 1) The K-10 case is provided with two mounting brackets, which mate with a pair of slots on each end of the K-10 case. 2) Each bracket has a pair of flanges that slide into the K-10 case slots.
- Page 26 SMART LOBE ACCESS UNIT Before mounting Side view Front view After mounting Side view Front view 4) Do not place the device face down on a hard surface to insert the brackets, since this can cause internal damage or damage to connectors.