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Express L128/L128T User Manual
107
Chapter 4
Troubleshooting
When the Express L128/L128T powers up, it performs an internal self-test.
This takes about 10 seconds. At the end of the test, the PWR LED should flash.
IF SELF-TEST FAILS
If the PWR LED is not on or continuously flashes, the following steps will ver-
ify whether or not the problem can be fixed locally.
1.
Ensure the Express L128/L128T is receiving power.
2.
Power off the Express L128/L128T. Place switch 2 in the off position; then
power back up. This will reset all internal settings to their factory default.
3.
If the Express L128/L128T still does not pass self-test, call ADTRAN Tech-
nical Support for assistance. See the inside back cover of this manual for
information on contacting ADTRAN.
IF THE EXPRESS L128/L128T DOES NOT READ
READY
When the Express L128/L128T has been set up and connected to a line, but the
PWR LED does not remain on after a few minutes, proceed with the following
steps:
1.
Cycle power on the Express L128/L128T, leaving it off for a minimum of
two seconds; then turn the power on for one minute to ensure the PWR
LED still doesn’t stay on.
2.
Disconnect the Express L128/L128T. From a functioning voice phone, call
the local directory number(s) provided with your line. Calling a good
ISDN line with nothing connected usually results in a ring or fast busy
tone. If someone answers, or you get a not-in-service intercept, there is
Содержание Express L128
Страница 15: ...List of Figures x Express L128 L128T User Manual 61202 070L1 1...
Страница 17: ...List of Tables xii Express L128 L128T User Manual 61202 070L1 1...
Страница 23: ...Quick Startup Guide 6 Express L128 L128T User Manual 61202 070L1 1...
Страница 43: ...Chapter 2 Installation 26 Express L128 L128T User Manual 61202 070L1 1...
Страница 123: ...Chapter 3 Terminal Menu Operation and Structure 106 Express L128 L128T User Manual 61202 070L1 1...
Страница 131: ...Chapter 4 Troubleshooting 114 Express L128 L128T User Manual 61202 070L1 1...
Страница 155: ...Appendix B Log Messages 138 Express L128 L128T User Manual 61202 070L1 1...
Страница 159: ...Appendix C SNMP 142 Express L128 L128T User Manual 61202 070L1 1...
Страница 165: ...Appendix E Terminal Mode Commands 148 Express L128 L128T User Manual 61202 070L1 1...
Страница 177: ...Appendix F Frame Relay Firmware Version 160 Express L128 L128T User Manual 61202 070L1 1...
Страница 187: ...Glossary 170 Express L128 L128T User Manual 61202 070L1 1...
Страница 199: ...Index 182 Express L128 L128T User Manual 61202 070L1 1...