Nortel Meridian M3905 User Manual page 44

Asynchronous troubleshooting
Symptom
The prompt:
CALL
CONNECTED.SESSION
STARTS
RELEASED
Garbled prompts appear
on your terminal when
you type <CR>.
You do not get response
from the host computer
when you try to log on.
You try to make a data
call from the initial
prompt (or Main menu) in
keyboard dialing. You
see the prompt:
CALLING
but no number appears
and after 30 seconds you
get the prompt:
NO SYSTEM RESPONSE
38
Solution
If you have a Display on your telephone, dial fl‹get into EIA
5.
Monitor mode. Check to see that the MCA is receiving signals from
your terminal by watching the RXD indicator on the Display while
entering carriage returns on the keyboard. If the indicator flashes,
the connection is correct. If not, make sure the cable connection is
secure and the cable is a standard RS-232.
Dial fl¤ ensure that the MCA is in the Asynchronous mode).
6.
Dial ¤‚ change to the Asynchronous mode.
Dial •to ensure that the MCA is in the idle mode.
7.
If there is not a display, press ¤‚. If you hear a beep, then the
8.
MCA is in synchronous mode. Then change the baud rate
¤¤change to synchronous mode ¤‚.
9. Check the configuration parameters of the far end data device. If
they do not match those of your MCA, the call can not go through.
If this happens change the parameters of your MCA to match.
Enter a period ( .) followed by <CR> to perform an autoparity.
First, release the call. Turn on Remote Loopback and make the call
again. Type some characters at your terminal. If they echo back and
appear on your terminal, the problem is with the far end data device. If
the characters do not appear on your terminal, the problem is with the
MCA. Contact your telephone system administrator.
First, hold down the break key(s) for two seconds, enter <CR> and try
again to make the data call. If the problem continues, your MCA is
possible disabled. Contact your system administrator.