Zhone Technologies 600 - Manual (Page 108)

4-34 Server Cards
Model No. Running Head ACS-ATM Card Error Messages ATM Card
4.4 ACS-ATM Card Error Messages
Refer to Appendix B in the System Reference Guide for further information on Error
Messages regarding this card.
4.5 ACS-ATM Card Troubleshooting
Problems with a ATM card could indicate a number of causes. Some possibilities are:
• T1 or E1 network failure
• Improper installation of ATM child card
• Improper ATM card configuration
• Improper user card configuration
• Faulty cabling between the DTE and user card
• Improper DTE configuration
Typically, a problem is indicated by the inability to send or receive ATM traffic through the
ATM card. When troubleshooting communications problems through an ATM card, follow
this general sequence:
1. Verify that the T1 or E1 networks are working properly by checking for current
CGA-Red and CGA-Yellow alarms. If no CGA alarms are present that would affect
ATM traffic, continue with step 2.
2. Verify that the ATM card’s DS3 port is functioning properly. Use the built-in loopback
commands (LB CFG, LB GEN, LB DET) from the ATM Main Screen to test the
external connection, as detailed earlier in this chapter. Loopbacks are available on the
DS3 port only.
3. Verify that the ATM card’s User Network Interface (UNI) is up (accessed by pressing
N from the ATM card Main Screen).
4. Review the performance statistics of each active port (accessed by pressing P from any
port screen). Analyze the information provided on these screens to help determine the
cause of the problem, as detailed earlier in this chapter.
5. Verify that all cards programmed to output traffic to the ATM card are functioning
properly and that their output is directed to the proper card slot (the slot in which the
ATM card is installed).
6. Verify that the ATM port is connected to the proper WAN card and time slot or user
card port. If a user card port is used, verify the configuration settings on the user card
port and the cable connection to the DTE.
7. If the ATM card is determined to be faulty, replace it and return the faulty unit for repair
to the location specified by your distributor.