| Physical | 
| Dimensions | 82 (w) x 111 (d) x 38 (h) mm | 
| Enclosure | Moulded ABS Plastic | 
| Colour | Two tone (white/grey) | 
| Power | 
| Source | Via External Plug Pack (supplied with each unit)
 | 
| Input Voltage | 7 - 10V DC | 
| Input Current | 600mA (max) 100mA (typical) | 
| Connector | 2.0mm DC Jack (centre -ve) | 
| Indicator | LED power indicator | 
| Communication Port | 
| Host Port | D25 Socket (DTE) | 
| Terminal Port | (1 metre cable included to terminal | 
| Serial Wedge Port | 
| Model 280 | D9 Plug (DTE) | 
| Model 281 | D25 Plug (DCE) | 
| Power Out | +5V DC 500mA (max) for Scanners |