Pos Input/Output (I/O); Indicators And User Controls; External Ports; Power Management - IBM 4820 System Reference Manual

POS input/output (I/O)

The 4820 SurePoint Solution provides the following Point-of-Sale I/O devices:
v Touch screen, key pad, and MSR
v RS485 I/O
v Pointing device; mouse

Indicators and user controls

The 4820 SurePoint Solution provides the following indicators:
v Dual color LED:green power-on indicator; orange backlight dim or off
The 4820 SurePoint Solution provides the following user controls:
v Power on/Resume
v Brightness

External ports

The 4820 SurePoint Solution provides the following external ports:
v RS485 touch, keypad, MSR input: 4-pin SDL
v Video: MDR 20-pin
v DC power input
v Keypad/MSR (custom)

Power management

Power management is through DPMS and complies with the VESA standard. The table
below describes the power management states.
Table 5-3. Power Management States
Operation Mode
Off
DPMS Off
DPMS Suspend
DPMS Standby
On
5-2
4820 SurePoint Solution System Reference
Analog
5W
5W
5W
5W
20W