Accton Technology FAST ETHERHUB-12S manual RJ-45 Ethernet Ports

Fast EtherHub-12s User’s Guide

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

BLINKING

OFF

Indication

Indicates the port is receiving packets; blinking is proportional to the traffic entering the port.

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 100Wcategory 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.

Hardware Reference 4-5