IBM 4820, System Reference Manual

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Input/output (I/O)
The 4820 SurePoint Solution allows the following I/O devices:
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Touch screen, MSR, and keypad (Model 42T only)
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RS232 I/O
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Pointing device (Model 42T only), mouse
Indicators and user controls
The 4820 SurePoint Solution provides the following indicators and user controls:
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Dual color LED:green power-on indicator; orange backlight dim
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Power on and off
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Brightness
External ports
The 4820 SurePoint Solution provides the following external ports:
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RS232 touch, keypad, MSR input: 4-pin
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Video: MDR 20-pin
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DC power input
Power management
Power management is through DPMS and complies with the VESA standard. The table
below describes the power management states.
Table 2-3. Power Management States
Operation Mode RS485 / Analog
Off 5W
DPMS Off 5W
DPMS Suspend 5W
DPMS Standby 5W
On 20W
2-2
4820 SurePoint Solution System Reference