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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:

[email protected]

Summary of Contents for LT0009A

Page 1: ...oll 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 100...

Page 2: ...1 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: ...methods of measurement of radio disturbance characteristics of information technology equipment EN 50082 1 1992 Electromagnetic compatibility Generic immunity standard for residential commercial and l...

Page 4: ...operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever meas...

Page 5: ...berca etc 6 El aparato el ctrico debe ser usado nicamente con carritos o pedestales que sean recomendados por el fabricante 7 El aparato el ctrico debe ser montado a la pared o al techo s lo como sea...

Page 6: ...n del aparato 14 El equipo el ctrico debe ser limpiado nicamente de acuerdo a las recomendaciones del fabricante 15 En caso de existir una antena externa deber ser localizada lejos de las lineas de en...

Page 7: ...nsertion 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 Crosstalk Maximum 10 KHz 0 5 4...

Page 8: ...ale 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 98 398 hours Certification CE Operating Temperature 32...

Page 9: ...situations where extra lobes are needed By using Lobe Access Units to add workstations to the ring in place of extra lobe cabling overall design costs are reduced Connect four workstations to a singl...

Page 10: ...ill 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 Figure 2 1 Use as a standalone unit or co...

Page 11: ...with IBM Token Ring and complies with IEEE 802 5 LED indicators monitor active workstations Easy installation wall mountable No external power supply required Can operate as a standalone unit 2 3 Pac...

Page 12: ...r both LEDs on the initialization tool have faded completely about 6 seconds remove the initialization tool Two clicks should be heard 4 Repeat the procedure for ports SUB 2 through SUB 4 Note that fo...

Page 13: ...t in the token ring 1 Connect the unit s MAIN port to your MAU s LOBE port Note that if you re using the Lobe Access Unit in a standalone mode this step is not necessary since the MAIN port is unused...

Page 14: ...xceed 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 4 Position Data Connection IBM P N 8310574 MAU DB9 Male DB9 Female DB9 Male Lobe Access Unit...

Page 15: ...14 LOBE ACCESS UNIT 6 5 4 3 6 5 4 3 6 5 4 3 6 5 4 3 Lobe Access Unit Sub Workstation Lobe Access Unit Main MAU...

Page 16: ...comes 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...

Page 17: ...ng network 2 If the problem still exists dis connect all cables from the unit and repeat set up procedures 1 through 4 as described in Section 3 1 Check all cables for proper wiring then reconnect all...

Page 18: ...roblems still exist after trying the recommended action call Black Box 5 2 Calling Black Box If you determine that your Lobe Access Unit is malfunctioning do not attempt to alter or repair the unit It...

Page 19: ...ing If you need to transport or ship your Lobe Access Unit Package it carefully We recommend that you use the original container If you are shipping the Lobe Access Unit for repair make sure you inclu...

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