Power; Power Switch Operation; Port Dc Loads - IBM 4800-741 Hardware Service Manual

Updated July 14, 2008

Power

This section describes the power, power switches and power management.
The power requirements for the SurePOS 720:
v Input voltage: 100 - 127 V or 200 - 240 V AC nominal
v Frequency: 50 - 60 Hz, ±3 Hz
v Power consumption: 60 W typical, 200 W max.
See Table 3 for the maximum continuous DC load rating for each port.

Power switch operation

During normal operation, the power switch on the SurePOS 700 Series operates as
you would expect. Push the switch to turn the machine on, push it again and the
unit powers off. There are some exceptions:
1. You can program the switch to operate differently. For example, if your operating
2. A delay can occur when powering off, if you press the power button when the
3. Sometimes you cannot initiate a controlled shutdown because the application or
Attention
Hot plugging of powered USB devices is not supported.
Table 3. Port DC loads.
Notes:
1. Total 12-V current for all external loads is 5 A max. Total 5-V current available for all
external loads is 5 A max.
2. Two printers cannot be attached to the system simultaneously.
3. Only one cash drawer can be activated at any time.
24-V printer ports
38-V printer ports
24-V/38-V cash drawer ports
12-V ports (RS-485)
12-V port (USB)
5-V RS-485
5-V PS/2 keyboard/mouse
5-V in all USB ports
Total 12-V current for all external loads is 5 A maximum.
Total 5-V current for all external loads is 5 A maximum.
system supports power management, you can program the switch to behave as
a standby or resume switch. For more information, refer to the documentation
included with your operating system or power management software.
unit is running its power-on self-test (POST).
system is hung. Press and hold the power switch until the unit powers off.
Note: This is not the recommended method of powering off the SurePOS 700
Series. Use it only when no other method is available to power off the
3.0 A
2.1 A
1.0 A 150 mS pulse
1.0 A/port
1.5 A/port
1.0 A/port
0.5 A/port
0.5 A/port
Chapter 1. Introducing the SurePOS 700 Models
9