B&B Electronics Five Port Expandable Smart Switch manual 232XS5 Smart Switch Mode Commands

If the data byte of the Set Timer Mode command is an ASCII “1”, the timer will be setup to ignore switching commands. Sending the following string to the 232XS5 will set up the timer to ignore switching commands. (Assuming programmable character is the factory default of 2).

SetTM$ = CHR$(27) + CHR$(2) +”M” + “1”

The “M” tells the 232XS5 it is the set timer mode command and the “1” indicates to set up the timer to ignore switching commands. When the timer is configured in this mode, the 232XS5 will not accept any switching commands (“A”, ”B”, ”C”, ”D”, “E”, or “EOT”) for the specified timer value. After the timer has expired, the slave port that is connected to the master port will be disconnected. This feature is useful to prevent inadvertent switching during binary/graphic type file transfers. For example (smart switch mode), the timer is configured to ignore switching commands for 5 seconds. The select Port D command is sent to the 232XS5. Once Port D is connected a file of unknown data type (so file may or may not contain a switching command sequence) is to be transferred through the 232XS5. For a period of 5 seconds after Port D is connected, no switching commands will be accepted. As long as the file transfer takes less than 5 seconds, there is no chance the 232XS5 will inadvertently switch ports.

Table 8 - 232XS5 Smart Switch Mode Commands

	Command Characters
Function	1st	2nd	3rd	4th	Comments
Select Port A	ESC	X*	“A”	NU**	Switching Command
Select Port B	ESC	X*	“B”	NU**	Switching Command
Select Port C	ESC	X*	“C”	NU**	Switching Command
Select Port D	ESC	X*	“D”	NU**	Switching Command
Select Port E	ESC	X*	“E”	NU**	Switching Command
Deselect Port	ESC	X*	EOT	NU**	Switching Command
Set Timer Value	ESC	X*	“T”	“0”-”9”	Enhanced Mode
Set Timer Mode	ESC	X*	“M”	“0”,”1”	Enhanced Mode

*X represents the programmable character set by dipswitch SW2 **NU = Not Used

12 232XS53800 Manual

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