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30 CHAPTER 5: USING THE MODEM
N: Handshaking
Selects whether a connection will be forced to a specific speed.
O: Return to On-Line State
Applicable when a physical connection with a remote unit exists and the modem is
in the on-line command state.
Q: Return Result Codes
Defines whether the modem will issue result codes to the DTE.
V: Verbose mode
Defines the form of result codes returned by the modem.
I2 The modem performs a ROM checksum, compares the result against a
stored value, and returns an OK or ERROR message depending on the
success of the comparison.
I3 The modem sends its ROM Part Numbers and Revision Levels.
I4 The modem sends its ASCII string test.
I5 The modem sends its data pump chipset revision.
I7 The modem sends platform specific information.
N0 Sets the required connection speed to that set under S37.
N1 If S-register S37 is not equal to 255 it allows handshaking at the highest
speed supported by both modems. If S-register S37 equals 255 it allows
handshaking at the highest speed supported by both modems and DTE.
N2 If S-register S37 is not equal to 255 it allows handshaking at the highest
speed defined by S37. If S-register S37 equals 255 it allows handshaking
at the highest speed supported by both modems and DTE.
O0 Returns the modem to the on-line state.
O1 As O0 except that when a 2400 bits/s or higher connection is established
an equalizer retrain sequence is transmitted.
Q0 Result codes returned.
Q1 Result codes not returned.
Q2 Result codes returned in originate mode only.
V0 Numeric form responses enabled.
V1 Verbose responses enabled (English responses).