Справочник Пользователя для Avaya X330WAN

Troubleshooting X330W-2USP

Avaya X330WAN User’s Guide

83

•

Call the administrator of the remote module.

•

Wait for the signal to return.

Troubleshooting X330W-2USP

You can obtain statistical information regarding module performance, error rates, 
and DTE/DCE signal statuses using the 

 command. X330W-2USP 

does not indicate a failure via alarm LEDs.
X330W-2USP provides error messages in the following situations:
•

 - When there is a fault with the cable connections or 

when a DCE cable is connected. Check the cables and connections.

•

 - When the X330WAN can not establish a 

connection with the host P330 switch. In this case, verify that the appropriate 
software versions are installed in the host P330 switch.

If X330WAN (or the connected DCE) reports data errors (CRC, etc.), there might 
exist a phase shift between the data and the accompanying clock. In this case use the 

 command to invert the transmit clock signal (TxC) from the DCE.

Using Loopbacks

The X330W-2DS1 module supports the following loopback types:
•

 - The X330W-2DS1 CPU instructs the Line Framer to 

create a loop towards the CPU. A Blue Alarm (AIS) is sent on the line to the peer 
module. The Diag Loopback is illustrated in Figure 5.1.

•

 - The X330W-2DS1 Line Framer creates a loop on 

the line towards the peer module. The Local Line Loopback is illustrated in 
Figure 5.2.

X330WAN

CPU

Line

Framer

Tx

Rx