US Robotics COURIER Uživatelský manuál stáhnout pdf (Strana 68)

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101

U.S. Robotics I-modem Command Reference

Controlling EIA-232 Signaling • Page 6-4

To change the DSR pulse time (in 20-second increments), set S-register 24.

(See Appendix

A, Alphabetic Command Summary.)

Carrier Detect

Carrier is another way of saying Òready signal from the device on the other end of the con-

nection.Ó Under normal conditions, the I-modem sends a Carrier Detect (CD) signal in

response to receiving the carrier from the device on the other end.

&Cn Control how the I-modem sends the CD signal.

&C0 CD always ON.

&C1 Send CD normally: The I-modem sends a CD signal when it connects with

another analog device, and drops the CD signal when it disconnects.

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