Patent ID: 8331789
Filing Date: 2012-12-11
Classification: H05B

Abstract:
1. An operation terminal for use in a remote monitoring and control system which includes an operation terminal including a plurality of control switches each having a push button handle portion arranged to receive a pressing force applied from the front side thereof, each of the control switches having a specific address set in the operation terminal, a control terminal connected to a load having a specific address set in the control terminal, and a transmission control unit for sending and receiving a transmission signal by a time-multiplexed transmission method to and from the operation terminal and the control terminal via signal lines, generating load control data based on monitoring data sent from the operation terminal when each of the control switches is operated, and sending the control data to the control terminal connected to the load which is associated with the operated control switch by predetermined relational data, the operation terminal comprising: a communication unit connected to the signal lines and configured to send monitoring data to the transmission control unit; an operation terminal control unit for, when the push button handle portion of one of the control switches is pushed, generating monitoring data which contains information on the address allotted to the pushed one of the control switches and controlling the communication unit to send the monitoring data to the transmission control unit; a plurality of on-period light-emitting units provided in a one-to-one correspondence to the control switches and controlled by the operation terminal control unit to emit light when the load associated with the corresponding one of the control switches by relational data is in an on-state; a plurality of off-period light-emitting units provided in a one-to-one correspondence to the control switches and controlled by the operation terminal control unit to emit light when the load associated with the corresponding one of the control switches by relational data is in an off-state; and a housing for accommodating the operation terminal control unit and holding the control switches, the communication unit, the on-period light-emitting units and the on-period light-emitting units in place, the housing being fixed to an installation surface, wherein at least one half of the control switches are arranged one above another in a vertical direction and each of the on-period light-emitting units is arranged in such a fashion as to transversely interpose the corresponding one of the control switches between itself and the corresponding one of the off-period light-emitting units when seen from the front side, and wherein each of the on-period light-emitting units and the off-period light-emitting units has a front surface protrudes forwards beyond a front surface of the push button handle portion.