Accton Technology FAST ETHERHUB-12S - Manual (Page 29)

Fast EtherHub-12s User’s Guide
Hardware Reference 4-5
Troubleshooting : If the Link LED does not light up when a device is connected to its corre-
sponding port, check that both the hub and connected device are powered on. Be sure
the cable length for all devices connected to the hub are within the limits described
under
Distance Limit for Fast Ethernet Cabling in Chapter 2. As a general rule, be sure that
none of your twisted-pair cables exceed 100 meters. You should have standard, straight-
through cables and not crossover or other specialized cables.
Incoming Traffic
Color: Green
Label: Traffic
Function: Indicates traffic entering the port.
Condition Indication
BLINKING Indicates the port is receiving packets; blinking is
proportional to the traffic entering the port.
OFF No packets are being received by this port.
RJ-45 Ethernet Ports
This hub includes 12 Fast Ethernet station ports; of which Port 12 can also
serve as a daisy-chain port. Use straight-through twisted-pair cable to connect
the shielded MDI-X station ports to a workstation or server; or to connect the
MDI port to another network interconnection device, such as a hub or switch.
When using Port 12, remember to set the selection switch to MDI-X when
connecting to a workstation, or to MDI when cascading to another hub or
switch. Remember to use 100
W category 5 straight-through twisted-pair cable
(STP or UTP) for all standard connections.
Note: If you must cascade between MDI-X station ports on two hubs, then use
crossover cable.