Netcomm IP DSLAM User Manual

Trouble 

Solution 

PWR indicator 

does not light up 

after power on. 

Power outlet, power 

cord, or internal power 

supply may be defective.

• Check the power outlet by plugging 

in another device that is functioning 

properly. 

• Check the power cord with another 

device. 

SYS indicator does 

not light up after 

startup. 

Microprocessor, 

SDRAM, Flash or 

Software may be 

defective. 

• Verify that the switch is powered on.

• Check the boot-up statement from 

console. The boot up procedure is 

Boot -> kernel->application 

•  

indicator does not 

light up after 

making a 

connection. 

NCT240 Switch, cabling, 

ADSL Line, or ADSL 

Switch Ports may be 

defective. 

 

• Verify that the Access Switch and 

attached CPE are powered on. 

• Be sure the RJ-21 cables are plugged 

into the Access Switch from 

ADSL2+ modem through the 

Phone-line punch-down block. 

• Verify that the cable length does not 

exceed specified limits. 

• Check the cable connections on the 

access Switch, punch-down 

block/patch panel, and the Extended 

Ethernet CPE for possible defects. 

Replace the defective cable if 

necessary. 

UP LINK indicator 

does not light up 

after making a 

connection. 

Network cable or 

Ethernet device attached 

to this port may be 

defective. 

• Verify that the access switch and 

attached device are powered on. 

• Be sure an Ethernet cable is plugged 

into both the switch and attached 

device. 

• Verify that the proper cable type is 

used and its length does not exceed 

specified limits. 

• Check the network cable connections 

for possible defects. Replace the 

defective cable if necessary.