Troubleshooting handware

This section includs analysing trouble, the method of isolating problem with the Router :

Isolating Problems

Indicator lamp information

 

Isolating Problems

    The key to solve system trouble is to isolate the trouble from system by comparing what the system should do and what the system is doing to solve easiky.Consider the following sub-system when solving the problems:

1.        power and cooling systems——power supply,power cable and fan;

2.        ports ,cables and connections——ports on the rear panel the router and the cables connected to  them

Troubleshooting the power and cooling  systems

Check the following items to help isolate the problem:

1 .     When the power switch is in the ON position and the power LED is ON ,make sure the fan is operating .If not ,check the fan .

2 .       Check the working environment conditions to make sure it is not very hot and the chassis intake and exhaut vent are clear. The operating temperature of the router is 0--40 degree.

3 .    If the router fails to boot , but the power LED is on ,  Check the power supply .

 

Troubleshooting the Ports ,Cables and Connections

Check the following items to isolate problems:

       1. If the router fails to recognize a port , check the cable connection:

     2.       If the power switch is in the “ON” position ,make sure the power LED is ON .If not , check power source and power cable;

    3 .   If system startes but console port does not work , ensure console port configuration is 9600baud ,8-bit data bits ,no parity ,1-bit stop bits.

Indicator lamp information

LED indicator lamp shows that Router is working.Indicator and information on the device is as the following:

number

english name

chinese name

information

1

100M

100M Ethernet indicator lamp

The lamp is ON when 10/100MEthernet portis working on 100M.

2

ACT

10/100M Ethernet accepting /sending data indicator lamp

The lamp is glimmering when the Ethernet port is accepting data.

3

LINK

10/100 M Ethernet twist-pair portconnecting indicator

The lamp is ON when the twist-pair port(TPport)connects succesfully by twist-pair and HUB .

 

    Each D-Link 2621 Router needs to configure different interface cards with indicator lamps itself.The name and information of these lamps refer to "Hardware Installing Book of Interface Card".