Lantronix 1-T2 사용자 설명서
Troubleshooting
Modem Configuration Checklist
B - 7
B.5 Modem Configuration Checklist
Most modem problems are caused by cabling mistakes or incorrect modem
conÞguration. However, the following items should be veriÞed after any
modem conÞguration, and re-checked when there is modem trouble.
conÞguration. However, the following items should be veriÞed after any
modem conÞguration, and re-checked when there is modem trouble.
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The modem must disconnect immediately when DTR is de-asserted.
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The modem must assert CD (or DSR, if connected) when connected
to another modem. It must not assert CD when disconnected. The
modem may optionally assert CD during outbound dialing.
modem may optionally assert CD during outbound dialing.
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The modem and MSS must agree on the ßow control method and
baud rate scheme.
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The modem must not send result codes or messages to the server
except optionally during outgoing calls.
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The modem should be set to restore its conÞguration from non-
volatile memory when DTR is dropped.
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The modem should be conÞgured to answer the phone if incoming
connections are to be supported. Generally this is done with the
ats0=1 command.
ats0=1 command.
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The modem should not be conÞgured to answer the phone unless
the MSS asserts DTR.
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MSS Modem control must be enabled. Using modems on ports
without modem control enabled will lead to security problems.
The MSS Autobaud feature should be enabled only when required.