Zhone 2000 用户手册

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This section provides information for troubleshooting symptoms 
associated with the operation of the IAD. 

 describes symptoms, 

probable causes and suggested corrective action to correct the problem.

Power is not 
available to the IAD

Ensure that the power 
cord is securely 
connected.

Ensure that the power 
cord is plugged into a live 
outlet.

Ensure that the power 
switch is on.

If powered by an adapter, 
ensure that the correct 
adapter is used.

Incorrect Ethernet 
connection

Ensure that an Ethernet 
cable is properly 
connected to the IAD and 
its upstream connection.

No dial tone is present Incorrect PVC/DLCI 

set for voice 
channel

Verify these settings:
VPI: 0 to 255
VCI: 0 to 65535
DLCI: 16 to 1023
(default PVC 0/39; DLCI 
33)

IAD is improperly 
provisioned at the 
voice gateway.

Incorrect network 
provisioning.

Incorrect directory 
number at the 
Class 5 switch.

Verify and correct 
provisioning of IAD as 
required (Table 9-2).

Check and correct 
network provisioning at 
DSLAM, network 
switches, etc.

Check and correct as 
required