Troubleshooting Information - NETGEAR DS108 Installation Manual

RJ-45 Connector
The RJ-45 connector (shown in the illustration with an RJ-45 plug) is used to connect
workstations, hubs, and switches through unshielded twisted pair cable. The RJ-45 connector
accepts four-pair Category 3 or Category 5 UTP cable.
RJ-45 Connector Pin
Assignment
1
2
3
6
4, 5, 7, 8

Troubleshooting Information

Symptom Cause
Link LED off Port connection
or intermittent not functioning
Collision LED Collisions taking
on or blinking place on network
segment(s)
Problems with Normal/Uplink
port 8 push button in the
wrong position
Model DS108 Dual Speed Hub Installation Giude
12345678
Normal Assignment
on Ports 1 to 8
Input Receive Data +
Input Receive Data -
Output Transmit Data +
Output Transmit Data -
Not used
Solution
Make sure the power cord is properly connected and
functioning.
Check the crimp on the RJ-45 connectors and make sure that
the plug is properly inserted and locked into the port at both
the hub and the device. Make sure cabling is Category 5 and
meets the requirements for 100 Mbps operation.
Check installation of the network interface cards and verify
that they are 100 Mbps capable. Be sure that the proper
software driver is loaded. Check link LEDs on the network
adapter card and PC or workstation. Make sure cables and
connectors are correct.
Excessive collisions can be caused by incorrect cabling,
connectors, or wiring techniques or can occur when the
network is too busy. Ensure that the PC at the far end is set to
half-duplex mode and is operating properly.
Check the Normal/Uplink push button on the front panel.
8 1
711EA
Uplink Assignment
on Port 8
Output Transmit Data +
Output Transmit Data -
Input Receive Data +
Input Receive Data -
Not used