Battery replacement:
In the power management circuit in this POS system, there is a handy battery monitor feature to help user find out when an UPS battery should be replaced. The battery monitor will always first measure and check the UPS battery to see if the UPS battery is already incapable of service or if there is any sign for the possible critical fault development in the battery before it allows the charging operation to the UPS battery. Reason for such extra check is that indifferent recharging on a battery with some critical fault like micro short circuit will not only boost the fault development in and total failure of the battery but also can result in confusing system malfunction.
In the preloaded OS, there is a built in utility Power Manager that will interface the UPS battery monitor status with user. When a healthy UPS battery is added to an originally UPS function disabled system, the Power Manager will enable the UPS function automatically. However, when battery monitor disables the battery charging as designed while the UPS function of the system is originally enabled, in other words the UPS battery is found out of order if actually installed, there will be a popup message asking the user to agree disabling the UPS function. The system will operate under deactivated UPS function no matter agreed or not. However, the monitoring goes on and the popup message will come back on next system power up boot if not agreed. In any case, please replace the used up UPS battery at power off if the battery is well connected there but found inoperable by such messages.
Power Supply
The operating voltage range of the power adaptor should cover the local power supply for proper operation. The power cable, the power outlet and any power fusing arrangements must conform to local safety regulations.
Please never do any connection / disconnection when system is still powered on. Please always keep the external power adaptor in a free air circulation.
POWER ON/OFF
There must always be at least 10 seconds waiting before switching on again once the system is powered off successfully.
LED Indicator
There is an LED in the logo area or under the printed logo and serves for several purposes. The relationship between LED status and other
Part 13