| 摘要 |
PURPOSE:To make it possible to exactly connect a telephone call, by providing a function which is able to discriminate the instruction of collecting a data from a computer of an emergency center, or the telephone call for confirmation of carrying a patient, from the emergency center, to the emergency terminal equipment which has been installed in a hospital. CONSTITUTION:In case of a call for collecting a data, the detector DT detects the call signal, the circuit LC activates the connection control part CN by the above output dt and forms a DC loop, a data is made to input to the data transmitting and receiving circuit DSR, and also interruption is made to the processor MPU. When MPU has decided that it is a call from the switchboard, it performs the time count processing to the timer area. When MPU receives the instruction for collection from the center CPU, the timer area is cleared, and the data is transmitted to the circuit L. In case of an enquiry telephone call from the emergency center, when the aforesaid timer value has become value T, MPU gives an instruction to LC so that it can be changed to a telephone set TEL, simultaneously activates both the buzzer BS and the lamp LP, LC changes CN, and TEL is connected to the circuit. |
