Switch - Ethernet Hub User Manual

Model 0401
2
9
Ethernet™ Pocket Hub™
5. MAINTENANCE
WARNING: DO NOT, UNDER ANY CIRCUMSTANCES,
open and attempt to repair the 0401 Pocket Hub. Failure to
observe this warning could result in personal injury or
death from electrical shock.
NOTE: Failure to observe the above warning will immediately void
the warranty.
Fault Isolation
If two network devices fail to communicate through the 0401
Pocket Hub, consider the following:
• Are the LEDs described in the previous section functioning
properly?
• Do network devices have Link Integrity enabled?
• Do network devices communicate when the 0401 Pocket
Hub is not installed between them?
• Is flat or “silver satin” wire used in site internal wiring?
• Are internal wiring patch cords, punch down blocks, and
wall jacks properly pinned or configured?
• Is the AUI cable unbroken and properly connected?
• Are network interface cards properly configured?
Technical Support Contact
For assistance in fault isolation and in maintaining the 0401 Pocket
Hub, contact:
Technical Support [phone]
or your local distributor.
0401 Ethernet Pocket Hub Connectors and
Status LEDs
RJ-45 Connectors
Four (4) 10BaseT RJ-45 jack
connectors are located at one
end of the 0401 Pocket Hub.
The RJ-45 jacks support
connection to shielded or
unshielded 100 ohm twisted
pair 10BaseT cable.
Male AUI Connector
One (1) male AUI connector
is located at the other end of
the 0401 Pocket Hub.
NOTE: Power is provided
through the AUI connector
to the 0401 Pocket Hub.
Status LEDs
Power and Link/Transmit
status LEDs are located at
the side of the 0401 Pocket
Hub. The Power LED
indicates connection to
power. The Link/ Transmit
LEDs track the four 0401
Pocket Hub connections to
10BaseT.
RJ-45 Connectors
Male AUI Connector
Status LEDs