Troubleshooting Information - NETGEAR DS 104 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.
Normal Assignment
RJ-45
on Ports 1 to 4
Connector Pin
or Ports 1 to 6
Assignment
or Ports 1 to 16
1 Input Receive Data +
2 Input Receive Data -
3 Output Transmit Data +
6 Output Transmit Data -
4, 5, 7, 8 Not used

Troubleshooting Information

Symptom Cause
Link LED off or Port connection
intermittent not functioning
Collision LED on or Collisions
blinking taking place on
network
segment(s)
Problems with port Normal/Uplink
4 (DS104) or port 6 push button in
(DS106) or port 8 the wrong
(DS108) or port 16 position
(DS116)
Model DS104/106/108/116 Dual Speed Hub Installation Guide
12345678
8
711EA
Uplink Assignment
on Port 4, Port 6, Port 8, or Port
16
Output Transmit Data +
Output Transmit Data -
Input Receive Data +
Input Receive 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.
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