Black Box LE2801A Computer Monitor User Manual


 
Stack five units to
support up to 40 users.
Includes eight
shielded RJ-45
connectors and one
AUI connector.
Optional BNC or
fiberoptic connectors
available.
Offers full 10BASE-T
functionality with an
exceptionally small
footprint.
LEDs show basic
network activity.
Durable steel
enclosure and
compact size.
T
he Stackable MiniHub is a
compact, 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.
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
Stackable MiniHub
Ports
1
2
3
4
5
6
7
8
Stack Enable
LINK/TX
8
7
6
5
4
3
2
1
PORTS
PWR
COL
POL/TX
UP LINK
Off
IRB1
IRB2
On
PWR
12VDC, 1A
Build a 40-user network anywhere—or add up
to 40 users to your existing network.
Key Features
STACKABLE MINIHUB
connect to other hubs without
using a crossover cable.
It may be tiny, but the
Stackable MiniHub has
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,
troubleshooting, and diagnostics,
the MiniHub has 20 front-panel
LEDs that display hub status and
link activity.
Typical Applications include:
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
Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 • www.blackbox.com e-mail: info@blackbox.com
© 2002. All rights reserved.
Black Box Corporation.
4/11/2002 #13071