Abstract:
Systems and methods for RF hazard protection are provided. In one embodiment, a RF protection coupler comprises: a first port to couple to an output of an RF source circuit; a second port to couple to an external RF load; a source side and load side RF switches, wherein the source side RF switch and the load side RF switch are each switch between a first and second states in response to a detected matting. In the first state the source and load side RF switches establish an electrical path between the first and second ports. In the second state: the source side RF switch couples the first port to an impedance load that is impedance matched to the output of the RF source circuit; the load side RF switch couples the second port to an electrical ground; and a gap between the switches electrically isolates the ports.
Abstract:
A modular component for interconnection with another modular component to form a remote unit of a distributed antenna system, the modular component includes: an upstream transport interface to receive downlink signals indicative of downlink radio frequency signals originating from another unit in the DAS; a central signal processor to convert the downlink signals received at the upstream transport interface into the downlink radio frequency signals; a radio frequency amplification section to amplify at least a first portion of the downlink radio frequency signals using at least a first radio frequency amplifier; and a radio frequency filtering section to: filter the at least the first portion of the downlink radio frequency signals using at least a first radio frequency filter and provide the at least the first portion of the downlink radio frequency signals to at least one antenna for transmission to at least one subscriber unit.
Abstract:
An antenna mounting system that includes a base member, a plurality of spaced retaining attachment section and retaining members is provided. The base member has a central passage that is configured to receive an antenna shaft. The plurality of spaced retaining attachment sections are coupled to the base member. A retaining member is coupled to each retaining attachment section. Each retaining member has an engagement portion that is configured to engage an upper surface of a ceiling and a biasing portion that is configured to provide a bias force on the engagement portion to engage the upper surface of the ceiling.
Abstract:
An antenna mounting assembly that include a housing and base is provided. The housing has at least one access port plate. The at least one access port plate is configured to be selectively removed to form an access port to an internal chamber of the housing. Each access port is configured to be coupled an end of conduit that provides a path to and from the internal chamber of the housing for cabling. The base is configured to be temporarily mounted to a work form. The base has an open end that is configured to be selectively coupled to a second end of the housing. The base further has a closed end with an end plate. The end plate is configured to be selectively removed from the closed end to provide access to the internal chamber of the housing.
Abstract:
A remote antenna unit for a distributed antenna system is provided. The remote antenna unit includes a remote unit processor and a multifunctional port. The remote unit processor is configured to control communication operations of the remote antenna unit. The multifunctional port is configured to interface at least one of communications between at least one component of an extension card and the remote unit controller and power to the extension card.
Abstract:
In one embodiment, an emergency configuration control device is provided for a communications system that provides wireless RF communication service to a coverage area, wherein the system comprises an RF protection function coupled to at least one power amplifier, protection function configured to disable the power amplifier when the protection function determines that at least one parameter of the power amplifier has deviated outside of an operating specification, the device comprising: an emergency configuration control module executed by a controller, the emergency configuration control module configured to determine when an emergency event is occurring within the coverage area as a function of a first set of input signals; wherein the emergency configuration control module enters phase one operation and inhibits disabling of the power amplifier by the RF protection function and outputs one or more phase one notification signals in response to determining that the emergency event is occurring.
Abstract:
One embodiment is directed to a tool to cut and strip a radiating coaxial cable. The tool comprises first and second jaws, a linkage that couples the first jaw to the second jaw, a cutting blade, and a stripping blade. The tool is configured to position at least a portion of the cutting blade to cut and sever the cable at a first point along the cable when the tool is rotated around the cable while the first jaw and the second jaw are closed around the cable. The tool is configured to position at least a portion of the stripping blade to cut the jacket of the cable, without severing the cable, at a second point along the cable when the tool is rotated around the cable while the first jaw and the second jaw are closed around the cable. Other embodiments are disclosed.