Troubleshooting; Troubleshooting Guide - NetComm NCT240 Installation Manual

NetComm NCT240 Installation Guide

5. Troubleshooting

Troubleshooting guide

Trouble
PWR indicator does Power outlet, power cord,
not light up after or internal power supply
Turning on the may be defective.
power.
SYS indicator does Microprocessor, SDRAM,
not light up after Flash or Software may be
startup. defective.
ADSL2+ LINK NCT240 Switch, cabling,
indicator does not ADSL Line, or ADSL Switch
light up after making Ports may be defective.
a connection.
UP LINK indicator Network cable or Ethernet
does not light up device attached to this
after making a port may be defective.
connection.
Possible cause
• Check the power outlet by plugging in
• Check the power cord with another
• Verify that the switch are powered on.
• Check the boot-up statement from
•
• Verify that the Access Switch and
• Be sure the RJ-21 cables are plugged
• Verify that the cable length does not
• Check the cable connections on the
• Verify that the access switch and
• Be sure an Ethernet cable is plugged into
• Verify that the proper cable type is used
• Check the network cable connections
Solution
another device that is functioning
properly.
device.
console. The boot up procedure is Boot
-> kernel->application
attached CPE are powered on.
into the Access Switch from ADSL2+
modem through the Phone-line
punch-down block.
exceed specified limits.
access Switch, punch-down block/patch
panel, and the Extended Ethernet CPE
for possible defects. Replace the
defective cable if necessary.
attached device are powered on.
both the switch and attached device.
and its length does not exceed specified
limits.
for possible defects. Replace the
defective cable if necessary.
Release 1.0
23