US Robotics COURIER Uživatelský manuál stáhnout pdf (Strana 66)

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U.S. Robotics I-modem Command Reference

Controlling EIA-232 Signaling • Page 6-2

&Dn Tell the I-modem how to deal with the DTR signal.

&D0 Operate as though the DTR signal is always ON.

&D1 Use a change in the DTR signal to enter Command mode

. Most communi-

cations software packages have a method for toggling DTRÑrefer to your

softwareÕs manual for details.

&D1 functions similarly to the escape code (+++). Return online with the

On command, or hang up with the ATH command.

&D2 Respond normally to the DTR signal. The I-modem will not accept com-

mands until your computer sends a DTR signal. The call will end when the

DTR signal is dropped.

To change the DTR recognition time, set S-re

gister 25. (See Appendix A,

Alphabetic Command Summary.)

Data Set Ready

Data Set is another name for the I-modem. Under normal conditions, the I-modem sends a

Data Set Ready (DSR) signal to your computer when it is ready to send and receive data.

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