Abstract: A liquid level measurement device comprises a generally seamless pipe for insertion into an installation in which liquid level is to be monitored and a non-contact sensor assembly disposed within the pipe at a location spaced above the liquid. The sensor assembly senses the level of the liquid and generates output representative of the liquid level.

Abstract: A premises wiring system (112) comprising a back-end interface (122) communicating with at least one communications system and a front-end interface (126) communication with disparate communications devices configured for electrical signalling. At least one fiber-optic pair (146) couples the front-end and back-end interfaces. The front-end and back-end interfaces convert electrical signals destined for transmission over the pair into optical signals prior to transmission.

Abstract: A liquid level measurement device comprises a generally seamless pipe for insertion into an installation in which liquid level is to be monitored and a non-contact sensor assembly disposed within the pipe at a location spaced above the liquid. The sensor assembly senses the level of the liquid and generates output representative of the liquid level.

Abstract: A premise wiring system comprises a backend communications system including telephony capabilities and at least one communications device configured for electrical signalling. A signal conversion system acts between the backend communications system and the at least one communications system. The signal conversion system converts electrical signalling being exchanged between the at least one communications device and the backend communications system into optical signalling for transmission over a fiber optic link and reconverts the optical signalling into electrical signalling for delivery to the at least one communications device and the backend communications system.

Abstract: A premises wiring system (112) comprising a back-end interface (122) communicating with at least one communications system and a front-end interface (126) communication with disparate communications devices configured for electrical signalling. At least one fiber-optic pair (146) couples the front-end and back-end interfaces. The front-end and back-end interfaces convert electrical signals destined for transmission over the pair into optical signals prior to transmission.

Abstract: A distribution valve monitor to monitor the operation of a distribution valve of the type having an inlet and a plurality of outlets, which couples the outlets to the inlet according to a desired fluid distribution pattern comprises a plurality of non-contact sensors disposed at spaced locations about the distribution valve to sense activation of the valve to different operating conditions. A controller communicates with the sensors and records data representing the operation of the valve. The recorded data is examined to detect improper operation of the distribution valve.

Abstract: A premise wiring system comprises a backend communications system including telephony capabilities and at least one communications device configured for electrical signalling. A signal conversion system acts between the backend communications system and the at least one communications system. The signal conversion system converts electrical signalling being exchanged between the at least one communications device and the backend communications system into optical signalling for transmission over a fiber optic link and reconverts the optical signalling into electrical signalling for delivery to the at least one communications device and the backend communications system.