48  M-Class 
 
GPIO PORT ♦ 
 
Used to interface the printer to external controlling devices (see Appendix D). 
GPIO DEVICE 
 
Sets the GPIO Port to work with a specific type of device.  
DISABLED 
 
Disables the GPIO Port. 
APPLICATOR 
 
Enables the GPIO for a label applicator. 
BARCODE VERIFIER 
 
Enables the GPIO for a bar code verifier. 
START OF PRINT  
 
Programmable signal input that controls the Start of Print (SOP) process. 
ACTIVE HIGH    
 
SOP signal must go ‘high’ for at least 50 milliseconds to initiate printing. 
ACTIVE LOW 
 
SOP signal must go ‘low’ for at least 50 milliseconds to initiate printing. 
END OF PRINT  
 
Programmable signal output that signifies the End of Print (EOP) process. 
LOW PULSE  
 
Outputs a low pulse (approximately 30 milliseconds long) following printing. 
HIGH PULSE  
 
Outputs a high pulse (approximately 30 milliseconds long) following printing. 
ACTIVE LOW 
 
Outputs a logic ‘low’ following printing. 
ACTIVE HIGH 
 
Outputs a logic ‘high’ following printing.