Specifications

Chapter 5 Troubleshooting and Diagnostics Installation and Operation Manual
5-2 Detecting Errors ASMi-31 Ver. 3.0
• IR DISABLE DTE – The user tries to initiate a loopback from DTE in a modem
with an interface that doesn’t support the test feature from DTE.
• NO EXT CLK INPUT – The user tries to change the clock type to a clock type
not supported by the current DTE interface, such as change to external clock
in a modem with Ethernet interface. The clock type will not change.
• ILLEGAL MODE – The user tries to change to an illegal mode for his current
data rate. For example: to sync mode at the data rate of 57.6 kbps. The
mode will not change.
• LOC TEST ONLY – The test is activated on the local modem only, since the
management channel is not available.
• ILLEGAL CLOCK – The user tries to choose the illegal mode for the current
clock. For example, switching to async mode is not allowed when the clock is
EXT-RCV or RCV-EXT. The mode will not change.
• CLOCK IS CHANGED – There is a momentary loss of synchronization caused by
clock type change and the user tries to change the clock type again before
synchronization is achieved.
• BERT UNAVAILABLE – The user tries to activate internal BERT, when the
modem is in async mode and number of stop bits = 2 or if the unit is
configured to 5B, NP, 1s with V.110 rate adaptation.
• NO MATCH REM – Manually selected new parameter conflicts with one or
more parameters, which are already in the database of the remote modem.
For example:
 Clock mismatch. The clock of one modem is EXT-RCV/RCV-EXT and the
clock of another is RCV-INT/INT-RCV. Both units are in sync mode. The NO
MATCH REM burst message is displayed if the user tries to change the
mode of the internal clock modem to async (since it cannot be done from
the external clock unit).
 Clock mismatch. The clock of one modem is EXT-RCV/RCV-EXT and the
clock of another is RCV-INT/INT-RCV. The burst message appears if the
user tries to change the data rate from the INT-RCV unit (both sync or
async).
 Sync/async mode mismatch. Both modems have INT-RCV/RCV-INT clock.
One unit is in sync and another is in async mode. The burst message is
displayed if the user tries to change the clock type to EXT-RCV/RCV-EXT
from the sync modem (since it cannot be done from the async unit).
 Rate adaptation mismatch. One modem is in V.110 rate adaptation mode
and another modem is in the proprietary RAD adaptation. The burst
message appears if the user chooses data rate, which is not supported by
the current rate adaptation mode of the unit.