Black Box Switch LE2690A User Manual

DECEMBER 2000  
LE2690A  
9-Port Personal MiniHub  
PWR  
LINK  
PORT 9  
9-Port Personal MiniHub  
8
7
6
5
4
3
2
RX  
LINK  
PORT  
1
CUSTOMER 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  
SUPPORT  
INFORMATION  
 
9-PORT PERSONAL MINIHUB  
NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT  
INSTRUCCIONES DE SEGURIDAD  
.
 
NOM STATEMENT, TRADEMARKS  
CE Approval  
TRADEMARKS USED IN THIS MANUAL  
 
9-PORT PERSONAL MINIHUB  
Contents  
Chapter  
Page  
 
CHAPTER 1: Specifications  
1. Specifications  
Compliance —  
Standard —  
Interface —  
Data Rate —  
Partitioning —  
Reconnection —  
Maximum  
Segment Length —  
User Controls —  
Indicators —  
Connectors —  
Leads/Signals  
Supported —  
1
 
9-PORT PERSONAL MINIHUB  
Power —  
Enclosure —  
Cooling Method —  
Operating  
Temperature —  
Storage  
Temperature —  
Humidity —  
Size —  
Weight —  
2
 
CHAPTER 2: Introduction  
2. Introduction  
2.1 General Overview  
Section 3.3  
3
 
9-PORT PERSONAL MINIHUB  
LEDs  
Front-  
panel  
ports  
Rear-Panel  
Port  
Power  
Jack  
Up-Link  
Switch  
2.2 Features and Benefits  
Interconnectability with Existing Ethernet Networks  
Interoperability with Other Ethernet Devices  
4
 
CHAPTER 2: Introduction  
Installation Versatility  
Robust Netork Operation  
Simple Network Diagnosis and Maintenance with LEDs  
Low-cost Standalone 10BASE-T Connectivity  
High-Quality Construction  
2.3 Applications  
= =  
5
 
9-PORT PERSONAL MINIHUB  
To  
Existing  
Network  
6
 
CHAPTER 3: Installation  
3. Installation  
3.1 Before You Install: Inspecting the Complete Package  
Sections 5.2 and 5.3  
3.2 The Installation Procedure  
3.2.1 MOUNTING THE MINIHUB  
Tabletop- or Shelf-Mounting  
7
 
9-PORT PERSONAL MINIHUB  
Wall (or Vertical-Surface) Mounting  
PWR  
PORT 9  
LINK  
Bracket  
Bracket  
RX  
LINK  
PORT  
1
2
3
4
5
6
7
8
3.2.2 POWERING UP THE HUB  
8
 
CHAPTER 3: Installation  
3.2.3 CONNECTING TWISTED-PAIR SEGMENTS TO THE FRONT-PANEL PORTS  
3.2.4 USING THE REAR-PANEL PORT AND THE  
UP-LINK SWITCH  
= =  
= =  
= =  
9
 
9-PORT PERSONAL MINIHUB  
3.3 Cascading  
= =  
NOTE  
If you run cable between the rear ports of two 9-Port Personal Mini-Hubs,  
as shown with the upper two units in the illustration below, set the  
Up-Link switch of only one of the units to the “= =” position—the other  
unit’s switch must remain set to the “===position for the link to work  
properly.  
10  
 
CHAPTER 4: Operation  
4. Operation  
4.1 LED Indicators  
Power On (PWR) LED:  
Link Status (LINK) LEDs:  
NOTE  
When the rear port is physically uplinked (cabled) to another hub, the  
LINK LED will normally be ON when the Up-Link switch is set to the  
= =” position. If you isolate the MiniHub for full-bandwidth local  
operation by moving the Up-Link switch to the “===” position, the LINK  
LED will be OFF because the up-link is logically disabled.  
Receive Packets (RX) LEDs:  
4.2 Operating Features  
Partitioning and Reconnection:  
11  
 
9-PORT PERSONAL MINIHUB  
Prenmble Regeneration:  
Collisions:  
Fragment Extension:  
12  
 
CHAPTER 5: Troubleshooting  
5. Troubleshooting  
Section 5.1  
Section 5.2  
5.1 Things to Check  
Chapters 3 and 4  
Section 5.2  
13  
 
9-PORT PERSONAL MINIHUB  
5.2 Calling Your Supplier  
do  
not attempt to alter or repair it.  
5.3 Shipping and Packaging  
14  
 
NOTES  
 
NOTES  
 
© 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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