Abstract: A blowing head for installing blown cable, comprising a low-inertia motor using electrical current, operable to obtain the advance of the cable within the blowing head, adjusting means operable to vary the level of current of the motor, and low-inertia sensing means to sense movement and changes in the level of movement of the cable within the blowing head, wherein in use the adjusting means varies the level of current used by the motor in response to changes in the level of movement sensed by the sensing means, and wherein the varying level of current does not exceed a maximum current level.

Abstract: A blowing head for installing blown cable, comprising a low-inertia motor using electrical current, operable to obtain the advance of the cable within the blowing head, adjusting means operable to vary the level of current of the motor, and low-inertia sensing means to sense movement and changes in the level of movement of the cable within the blowing head, wherein in use the adjusting means varies the level of current used by the motor in response to changes in the level of movement sensed by the sensing means, and wherein the varying level of current does not exceed a maximum current level.

Abstract: A telecommunications network including a number of digital main switching units connected to local switching units which provide telephony service to consumer premises via local connections provide telemetry services for utilities by way of a telemetry platform. A network management system is responsive to customer service information to cause local switching units to provide customer facilities such as call barring. The local exchange is responsive to signals indicative of a call from the telemetry platform to override any class of service which would normally prevent the telemetry call from being connected. The local exchange and telemetry platform co-operate with customer premises interface equipment to ensure that any conflict between telephony requirement and telemetry requirement is resolved in favor of the telephony customer.