Patent ID: 8742814

Claim:
A device for receiving a first signal from a first unit and, in response, transmitting a second signal to a second unit identical to the first unit, and for producing a control signal to control a payload in response to receiving the first signal, said device comprising: a first connector for connecting to the first unit; a first line receiver coupled to said first connector for receiving the first signal from the first unit; a first timer coupled to said first line receiver and operative for producing the second signal that is delayed by a first time period from the first signal; a second connector, capable of mating with said first connector and configured to be connectable to the second unit; a first line driver coupled between said first timer and said second connector and operative to transmit the second signal to a line receiver of the same type as said first line receiver, in the second unit; a control circuit coupled to said first line receiver for generating the control signal in response to receiving the first signal, said control circuit having a control port couplable to control the payload by the control signal; and a single enclosure housing said first and second connectors, said first line receiver, said first line driver, said first timer and said control port.