Specifications
| Physical Characteristics | 
| Dimensions | 162 mm (w) x 85 mm (d) x 15 mm (h) | 
| Weight | 125g | 
| Power Characteristics | 
| Voltage | 5 V DC (from 301 Controller) | 
| Voltage Out | 5 V DC | 
| Current | 80 mA | 
Interfaces | 
| Serial | 2, DB9 | 
| Parallel | 1, DB25 | 
| Cash Drawer | 1, Din 5 240º | 
| Protolink Bus | 1, PCB Pin Connector | 
The 301 I/O Board is a daughter interface board 
and must be connected to the 301 Controller to operate.