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1992-12-01
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19 lines
If you haven't change any other software or hardware then
the modem probably needs repair. Call 617-423-1072 for Customer
Service. If there has been any software or hardware additions,
one of them may be causing a conflict.
(External)-> When you try the dos software (which is what?)
does the TR led come on? If not, then the comport is not
contacting the modem at all. Do the RD/SD leds blinks when you
send commands to the modem? If they both blink then the modem is
echoing commands. If only one blinks then the modem is not
echoing commands.
(Both) -> Can you type AT and get an OK reply? If not then
the modem (Ext - if RD/SD blink) is echoing but the
serial/computer may not receive /display the echo. (Both)-> If
all else fails, try ATA and see if you hear the modem pick up the
telephone line and start squealing. If so, (Ext - and the SD/RD
leds blink,) the modem probably is OK and there is a computer
hardware conflict (modem, mouse, scanner and so forth).