Integrate serial port plug and play into simple signaling communication type UPS
AssigneeDelta Electronics, Inc.
InventorsKao Chao-Li, Lee Sheng-Ta
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Abstract
In the present invention, a DSR of the serial port is coupled to a DTR of the serial port for responding to a detecting signal from a host computer. A RTS signal of the serial port is at a high level when a system is waiting for a PnP ID information from a PnP device during an enumeration process. The UPS detects that RTS is at high level to determine a time point of delivering the PnP ID information. Hence, the function of serial port plug and play can be integrated into simple signaling communication type UPS.
Claims20
A simple signaling communication type UPS having serial port PnP function, said UPS comprising:
- a UPS means, said UPS means comprising:
- a micro controller;
- a transferring means transferring a voltage level of a first micro controller signal into a voltage level of a first serial port signal and transferring a voltage level of a second serial port signal into a voltage level of a second micro controller signal;
- and
- a serial port transmitting said first serial port signal and said second serial port signal between said UPS means and a system, said serial port comprising:
- a DTR pin transmitting said second serial port from said system to said UPS means;
- a DSR pin coupling to said DTR pin to generate a response signal for responding a detecting signal of said DTR pin;
- a RTS pin,
- wherein during a PnP enumeration process, said micro controller transmits a PnP ID information after a voltage level of said RTS pin is transferred from a negative signal level to a positive signal level.
A simple signaling communication type UPS having serial port PnP function, said UPS comprising:
- a battery;
- a charger receiving an input AC power and charging said battery;
- an inverter transferring an electric power of said battery into an output AC power;
- a micro controller generating command signals according to detecting a state of said input AC power and a state of said battery;
- a transferring means transferring a voltage level of a first micro controller signal into a voltage level of a first serial port signal and transferring a voltage level of a second serial port signal into a voltage level of a second micro controller signal;
- and
- a serial port transmitting said first serial port signal and said second serial port signal between said UPS and a system, said serial port comprising:
- a DTR pin transmitting said second serial port from said system to said UPS;
- a DSR pin coupling to said DTR pin to generate a response signal for responding a detecting signal of said DTR pin;
- a RTS pin,
- wherein during a PnP enumeration process, said micro controller transmits a PnP ID information after a voltage level of said RTS pin is transferred from a negative signal level to a positive signal level.
Dependencies are inferred from the claim text.