7.2 Electronics:
Following specifications are for the multimedia model only:
| Line voltage: | |
| Power consumption | max. 20 W | 
Following values are valid for the model VESA mount bracketry only:
| Operating Voltage: | 12 V ± 5%  | 
| Ripple: | < 120 mV | 
| Power Consumption | max. 30W | 
The values in brackets are for the power supply delivered with the Touch / Screen Commander.
The Touch Commander / Screen Commander with VESA mount bracketry must be operated with the supplied original power supply or with power supplies which are approved by Preh.
For use only with power Adapter:
Vender1: LIEN CHANG Model: LCA01F
I/P: 
O/P: 12VDC/4.16A
Vender2: CHI SAM Model: 
I/P: 
O/P: 12VDC/4.00A
| 7.3 Touch: | 
 | 
| Interface: | RS232, Mouse Emulation under DOS, Windows 3 x, | 
| 
 | Windows 9x, NT, 2000, XP, Linux and OS/2 | 
| Technology: | |
| Resolution: | max. 2048*2048 | 
| Surface: | hardcoated polyester foil | 
| Transmission: | 75% | 
| Durability | 35 million actuation | 
| 7.4 Touch Controller | 
 | 
| Controller: | Winbond  | 
| Power Requirement: | 5V/100mA | 
| Operating Temperature: | 0 to 50℃ | 
| Storage Temperature: | |
| Relative Humidity: | 95% at 60℃ | 
| Interface: | RS232 | 
| Protocol: | No parity, 8 data bit, 1 stop bit, 9600 baud (N, 8, 1, 9600) | 
| Report rate: | Max. 160 points/sec | 
| Response time: | Max. 35ms | 
| 17 | subject to change without prior notice | 05.2004 | 
| 
 | Preh KeyTec GmbH,  | 
 | 
