Black Box STACKABLE MINIHUB BNC LE2801A BNC User Manual

© 2002. All rights reserved.  
Black Box Corporation.  
Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 • www.blackbox.com e-mail: [email protected]  
STACKABLEMINIHUB  
PWR  
12VDC, 1A  
LINK  
UP  
8
Stackable MiniHub  
7
6
5
4
3
2
1
Ports  
8
7
6
5
4
3
2
1
PORTS  
LINK/TX  
PWR  
POL/TX  
COL  
Build a 40-user network anywhere—or add up  
to 40 users to your existing network.  
KeyFeatures  
connect to other hubs without  
using a crossover cable.  
It may be tiny, but the  
Typical Applications include:  
he Stackable MiniHub is a  
Tcompact, unmanaged hub  
offering low-cost connectivity for  
IEEE 802.3/Ethernet 10BASE-T  
networks. Each hub has eight  
shielded modular jack ports and  
one AUI port. A BNC or Fiber port  
is optional in addition to the AUI.  
Up to five hubs can be stacked  
to form a single logical repeater  
with 40 modular jack ports and  
four AUI, BNC, or Fiber ports. This  
feature allows you to build larger  
networks without violating IEEE  
802.3 guidelines.  
Stack five units to  
• Networking a personal  
multi-system office using  
10BASE-T twisted-pair  
cabling  
• Temporary network for trade  
shows  
• Lab or office environments  
that need an independent  
Ethernet network  
• Expanding small  
independent networks  
• Testing your network—use  
the MiniHub as a test port  
support up to 40 users.  
Stackable MiniHub has  
Includes eight  
everything you expect in a  
10BASE-T hub. Featuring full  
repeater functionality, the  
MiniHub also offers jabber  
protection to prevent lockup from  
excessively long packets,  
automatic partitioning and  
reconnection of ports  
experiencing excessive collisions,  
and automatic polarity detection  
that compensates for wiring  
errors on the receive pair.  
To aid operation,  
shielded RJ-45  
connectors and one  
AUI connector.  
Optional BNC or  
fiberoptic connectors  
available.  
Offers full 10BASE-T  
functionality with an  
exceptionally small  
footprint.  
Port 8, on the front of the  
MiniHub, has an uplink switch for  
internal crossing over of the  
10BASE-T port. This allows you to  
troubleshooting, and diagnostics,  
the MiniHub has 20 front-panel  
LEDs that display hub status and  
link activity.  
LEDs show basic  
network activity.  
Durable steel  
enclosure and  
compact size.  
4/11/2002  
#13071  

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