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Motorola 3460 User Manual

Page 97

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3460 Fast’R

5-9

LEASED-LINE OPERATION

Modem won’t
connect

Determine whether
modems are assigned
to answer and
originate.

Ensure one modem is set to
answer (AT

*

CA1) and one to

originate (AT

*

CA0).

Run an LAL pattern
test (AT&T8) on both
modems.

• If errors are found on either

end, contact Motorola
customer service.

• If the modem passes the test,

you may have line problems;
contact your telephone
company.

Check the modulation
configuration:

• Mode (AT

*

MM)

• Max Rate (AT

*

MX)

• Min Rate (AT

*

MN)

Ensure that the local and remote
modem modulation modes are
compatible.

Check local and remote
leased line transmit
level (AT

*

LX).

• USA: if operating on a leased

line, set to 0 (AT

*

LX0)

• If the transmit level is

adjustable in your country, and
the modems are running back-
to-back, adjust it to
approximately -15 dB
(AT

*

LX15)

Table 5-1. Troubleshooting the 3460 Fast’R Modem

Problem

Diagnosis/Test

Possible Solution