Motorola 3460 ユーザーズマニュアル
3460 Fast’R
5-3
CALL ESTABLISHMENT
Modem won’t
answer
answer
Check cabling.
Check parameters:
• Answer (ATS)
• DTR (AT&D)
• DTR (AT&D)
Ensure that Answer is not set to
Manual (S0=0).
Set DTR=High (AT&D0), if
DTR is not supplied by the
computer.
Manual (S0=0).
Set DTR=High (AT&D0), if
DTR is not supplied by the
computer.
Check the modem's
Line option (AT&L).
Line option (AT&L).
Ensure Line=Dial (AT&L0).
Check that the TR LED
is on (steady).
is on (steady).
If the TR LED is not steadily lit,
ensure the computer is
supplying DTR.
ensure the computer is
supplying DTR.
Check that the RI/OH
LED is on when ring is
present on the line.
LED is on when ring is
present on the line.
Ensure that the remote modem
is dialing the correct phone
number.
is dialing the correct phone
number.
Modem won’t
dial
dial
If using DTR dialing,
check:
check:
• Default dial option
(AT
*
DA)
• Phone number at
stored location
• DTR option (AT&D)
Ensure default dial option is a
valid phone number.
Ensure that a number is stored.
Ensure DTR=108.1 (AT&D5)
or Tail (AT&D4).
Ensure the computer is
supplying DTR.
valid phone number.
Ensure that a number is stored.
Ensure DTR=108.1 (AT&D5)
or Tail (AT&D4).
Ensure the computer is
supplying DTR.
Check the dialing
environment.
environment.
If the modem is dialing out of a
PBX, the modem may not
recognize the non-standard dial
tone. Set Blind Dial=On
(ATS6).
PBX, the modem may not
recognize the non-standard dial
tone. Set Blind Dial=On
(ATS6).
Table 5-1. Troubleshooting the 3460 Fast’R Modem
Problem
Diagnosis/Test
Possible Solution