US Robotics 3Com Manual do Utilizador descarregar pdf (Página 77)

TECHNICAL REFERENCE

8-26

S18 0 Test timer for &T loopback testing. Sets the time in seconds of testing before

the modem automatically times out and terminates the test. When set to 0, the

timer is disabled. Valid range is 1-255.

S19 0 Sets the duration, in minutes, for the inactivity timer. The timer activates when

there is no data activity on the phone line; at time-out the modem hangs up.

S19 = 0 disables the timer.

S20 0 Reserved

S21 10 Sets the length, in 10-millisecond units, of breaks sent from the modem to the

computer; applies to MNP or V.42 mode only.

S22 17 Stores the ASCII decimal code for the XON character.

S23 19 Stores the ASCII decimal code for the XOFF character.

S24 0 Reserved

S25 20 Sets the duration, in hundredths of a second, that DTR must be dropped so that

the modem doesn’t interpret a random glitch as a DTR loss. (Most users will

want to use the default; this register is useful for setting compatibility with older

systems running under older operating software.)

S26 0 Reserved

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US Robotics 3Com Manual do Utilizador Página 77