
 25
Scan Engine Terminations  IS4813 Engine Connections
10-Pin ZIF Connector 
Pin  Signal Name  Function 
1  No Connect  No Connect 
2 Power, VCC  3.3V ± 0.3V 
3  No Connect  No Connect 
High = Laser OFF 
4 Laser Enable* 
Low = Laser ON, only if pin 5 (scan enable) is also Low 
High = Engine OFF 
5 Scan Enable* 
Low = Engine ON 
High = Bar 
6  Digitized Bar 
Pattern, Data Out  Low = Space 
7  Start of Scan,  
Scan Sense 
Level changes from high to low, or low to high, when the 
laser changes direction at the start of the scan line. 
8 and 9  Ground  Power Ground 
Figure 16. IS4813 
10  No Connect  No Connect 
IS4815 Engine Connections
10-Pin ZIF Connector 
Pin  Signal Name  Function 
1  No Connect  No Connect 
2 Power, VCC  5.0V ± 5% 
3  No Connect  No Connect 
High = Laser OFF 
4 Laser Enable* 
Low = Laser ON, only if pin 5 (scan enable) is also Low 
High = Engine OFF 
5 Scan Enable* 
Low = Engine ON 
High = Bar 
6  Digitized Bar 
Pattern, Data Out  Low = Space 
7  Start of Scan,  
Scan Sense 
Level changes from high to low, or low to high, when the 
laser changes direction at the start of the scan line. 
8 and 9  Ground  Power Ground 
Figure 17. IS4815 
10  No Connect  No Connect 
* See Timing Diagrams on page 30.