Black Box 3600 MODEM manual Number Code Application *RC, Command Code Set Number Operation

AT Commands

The X3 command followed by a dial command makes the modem go off hook, wait the amount of time set in register S6 and dial the number. If a busy signal is detected, the modem sends a BUSY message and hangs up. If the call is completed, the appropriate CONNECT message similar to X1 is displayed. The modem does not detect a no dial tone situation.

The X4 command followed by a dial command makes the modem go off hook and wait for a dial tone before dialing. If a dial tone is not detected within 5 seconds, the modem returns a NO DIALTONE message and hangs up. If a busy signal is detected, the modem returns a BUSY message and hangs up. If the call is completed, the appropriate CONNECT message similar to X1 is displayed.

The X4 command combines the features of X1, X2, and X3. The factory setting is X4.

Note

When an X2, X3, or X4 command is in effect, an appropriate CONNECT data rate message or code is displayed as for X1. When a blind dial command (X, X1, X3) is in effect, the modem waits 2 seconds or the time set in S6 and then dials.

Number Code Application *RC

Some communications software packages use different number codes to indicate the data rate of the serial port. This option selects either of two commonly used number code sets.

Command	Code Set	Number	Operation
*RC	Standard	15	4800 bps
		18	9600 bps
*RC1	Alternate	11	4800 b p s
		12	9600 bps

Note

Asterisks in AT commands are part of the command and do not indicate footnotes.

5-8 Modem 3600