A power conversion system for a power communications system, the power conversion system coupled to a power supply to supply input power over a power cable to remote radio heads (RRHs). The power conversion system comprises an input that receives input power from the power supply, and an output coupled to the power cable. A control module is configured to monitor power information, the power information including an input voltage of the power input, a current measurement of the input power, and a resistance of the power cable. One or more DC-DC converters is coupled to the control module and configured to generate an output voltage at the output, the output voltage generated by adding to the input voltage, a supplemental voltage determined from the monitored power information to compensate for a voltage decrease on the power cable.
G01R 15/26 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using modulation of waves other than light, e.g. radio or acoustic waves
G01R 27/00 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
G08C 17/02 - Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
2.
POWER CONVERSION SYSTEM FOR WIRELESS COMMUNICATION SYSTEMS
A power conversion system for a power communications system, the power conversion system coupled to a power supply to supply input power over a power cable to remote radio heads (RRHs). The power conversion system comprises an input that receives input power from the power supply, and an output coupled to the power cable. A control module is configured to monitor power information, the power information including an input voltage of the power input, a current measurement of the input power, and a resistance of the power cable. One or more DC-DC converters is coupled to the control module and configured to generate an output voltage at the output, the output voltage generated by adding to the input voltage, a supplemental voltage determined from the monitored power information to compensate for a voltage decrease on the power cable.
H02M 3/156 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
A surge protective device (SPD) module includes a printed circuit board (PCB), a first electrode, a second electrode, and a varistor electrically connected between the first and second electrodes. The SPD module forms a housing assembly defining a chamber containing the varistor. The PCB forms a portion of the housing assembly.
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details
A surge protective device (SPD) module includes a printed circuit board (PCB), a first electrode, a second electrode, and a varistor electrically connected between the first and second electrodes. The SPD module forms a housing assembly defining a chamber containing the varistor. The PCB forms a portion of the housing assembly.
A surge protective device (SPD) assembly module includes a polymeric outer enclosure, an SPD module, a first terminal, and a second terminal. The polymeric outer enclosure defines an enclosed, environmentally sealed enclosure chamber. The SPD module is disposed in the enclosure chamber. The SPD module defines an environmentally sealed SPD chamber and includes: first and second electrically conductive electrode members; and a varistor member formed of a varistor material and electrically connected between the first and second electrode members. The varistor member is disposed in the SPD chamber between the first and second electrode members. The first terminal is electrically connected to the first electrode member and extending out from the outer enclosure. The second terminal is electrically connected to the second electrode member and extending out from the outer enclosure.
A power transmission system is disclosed comprising a centralized power supply system having multiple DC power supply units and a controller coupled to the DC power supplies. Remote devices are coupled to the centralized power system via a power cable. In some embodiments, each of the DC power supply units transmit signal information to respective ones of the remote devices, and the remote devices may be configured to forward the signal information to the controller. In some embodiments, the controller module automatically allocates individual ones of the DC power supply units to the respective ones of the remote devices based on the forwarded signal information.
A power boost retrofit system for a power communications system having an existing base overvoltage protection unit, where one end of DC power cables is connected to remote radio heads (RRHs). The power conversion retrofit system includes one or more pluggable DC voltage conversion (DCVC) modules containing DC-DC converters are inserted into respective slots in a front of an enclosure of the base overvoltage protection unit. A connectivity and control (CC) module is inserted into a rear of the enclosure to mate with the DCVC modules and to connect with an opposite end of DC power cables.
H05K 7/14 - Mounting supporting structure in casing or on frame or rack
H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
H02M 1/32 - Means for protecting converters other than by automatic disconnection
8.
AUTOMATIC CIRCUIT ALLOCATION OF REMOTE DEVICES IN A MULTI-POWER SUPPLY SYSTEM
A power transmission system is disclosed comprising a centralized power supply system having multiple DC power supply units and a controller coupled to the DC power supplies. Remote devices are coupled to the centralized power system via a power cable. In some embodiments, each of the DC power supply units transmit signal information to respective ones of the remote devices, and the remote devices may be configured to forward the signal information to the controller. In some embodiments, the controller module automatically allocates individual ones of the DC power supply units to the respective ones of the remote devices based on the forwarded signal information.
H02J 1/08 - Three-wire systemsSystems having more than three wires
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
A surge protective device (SPD) assembly module includes a polymeric outer enclosure, an SPD module, a first terminal, and a second terminal. The polymeric outer enclosure defines an enclosed, environmentally sealed enclosure chamber. The SPD module is disposed in the enclosure chamber. The SPD module defines an environmentally sealed SPD chamber and includes: first and second electrically conductive electrode members; and a varistor member formed of a varistor material and electrically connected between the first and second electrode members. The varistor member is disposed in the SPD chamber between the first and second electrode members. The first terminal is electrically connected to the first electrode member and extending out from the outer enclosure. The second terminal is electrically connected to the second electrode member and extending out from the outer enclosure.
A surge protective device (SPD) assembly module includes a polymeric outer enclosure, an SPD module, a first terminal, and a second terminal. The polymeric outer enclosure defines an enclosed, environmentally sealed enclosure chamber. The SPD module is disposed in the enclosure chamber. The SPD module defines an environmentally sealed SPD chamber and includes: first and second electrically conductive electrode members; and a varistor member formed of a varistor material and electrically connected between the first and second electrode members. The varistor member is disposed in the SPD chamber between the first and second electrode members. The first terminal is electrically connected to the first electrode member and extending out from the outer enclosure. The second terminal is electrically connected to the second electrode member and extending out from the outer enclosure.
A dual coil inductor assembly includes an inner coil assembly including an inner coil and first and second terminals, and an outer coil assembly including an outer coil and third and fourth terminals. The inner coil includes an inner metal foil, and an inner electrical insulator sheet spirally co-wound with the inner metal foil. The outer coil includes an outer metal foil, and an outer electrical insulator sheet spirally co-wound with the outer metal foil. The inner coil is disposed within an outer coil air core of the outer coil so that the outer coil circumferentially surrounds the inner coil. The first and second terminals are electrically connected to the inner metal foil at respective first and second locations spaced apart along the inner metal foil. The third and fourth terminals are electrically connected to the outer metal foil at respective third and fourth locations spaced apart along the outer metal foil.
A dual coil inductor assembly includes an inner coil assembly including an inner coil and first and second terminals, and an outer coil assembly including an outer coil and third and fourth terminals. The inner coil includes an inner metal foil, and an inner electrical insulator sheet spirally co-wound with the inner metal foil. The outer coil includes an outer metal foil, and an outer electrical insulator sheet spirally co-wound with the outer metal foil. The inner coil is disposed within an outer coil air core of the outer coil so that the outer coil circumferentially surrounds the inner coil. The first and second terminals are electrically connected to the inner metal foil at respective first and second locations spaced apart along the inner metal foil. The third and fourth terminals are electrically connected to the outer metal foil at respective third and fourth locations spaced apart along the outer metal foil.
An optical interface includes a rack mountable enclosure that includes multiple slots for retaining multiple insertable fiber optic (FO) modules. The FO modules include a first set of interconnection ports that connect to remote radio units (RRUs), a second set of interconnection ports that connect to a baseband unit (BBU), and a third set of monitoring ports that connect to monitoring/text equipment. The FO modules contain fiber splitters that split off uplink/receive and downlink/transmit signals carried on optical fibers to the third set of monitoring ports. The FO modules may insert in different orientations and directions into different rack mountable enclosure configurations for higher density and more configurable connectivity. A splitter holder is located within the FO module and provides improved optical fiber routing for more integrated module port interconnectivity.
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
H04B 10/079 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
H04B 10/80 - Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups , e.g. optical power feeding or optical transmission through water
H04B 10/077 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
14.
POWER TRANSMISSION SYSTEM FOR WIRELESS COMMUNICATION SYSTEMS
A power transmission system includes a voltage measurement device located on a tower or rooftop for measuring a voltage (VRRH) at a top end of a DC cable connected to a remote radio head (RRH). A voltage control system receives an input voltage (VIN) from a DC power supply and generates an output voltage (VOUT) at a base end of the DC cable. The voltage control system calculates a voltage drop on the DC cable based on the VRRH measurement and then adds different voltage steps to VIN SO VOUT compensates for the voltage drop. Calculating the voltage drop allows the PTS to more efficiently supply power to RRHs without having to increase the size of DC power cables.
OUT compensates for the voltage drop. Calculating the voltage drop allows the PTS to more efficiently supply power to RRHs without having to increase the size of DC power cables.
H04M 19/00 - Current supply arrangements for telephone systems
H02M 3/156 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
G05F 1/46 - Regulating voltage or current wherein the variable actually regulated by the final control device is DC
G01R 19/25 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
H04B 3/54 - Systems for transmission via power distribution lines
16.
Overvoltage protection system for wireless communication systems
A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An external surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation. Pluggable surge suppression modules can be used in both the external surge suppression unit and the rack mountable surge suppression unit.
H02H 1/00 - Details of emergency protective circuit arrangements
H02H 1/04 - Arrangements for preventing response to transient abnormal conditions, e.g. to lightning
H02H 3/22 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess voltage of short duration, e.g. lightning
H02H 9/06 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
A fiber optic cable management system includes a tray configured to reciprocate inside of an enclosure between an inserted position and an extended position. Optical fiber modules are located in the tray and retain optical fiber splitters or optical fiber multiplexer/de-multiplexers. The tray when moved to the extended position moves the optical fiber modules out of the front end of the rack enclosure. This allows a technician to access the back of the modules for maintenance operations without having to access the back end of the enclosure. A flexible cable guide allows the optical fibers connected to the modules to move with the tray into and out of the enclosure. Reflectors can be attached to the connectors to test fiber optic lines between a central office and the cell site location.
An optical interface includes a rack mountable enclosure that includes multiple slots for retaining multiple insertable fiber optic (FO) modules. The FO modules include a first set of interconnection ports that connect to remote radio units (RRUs), a second set of interconnection ports that connect to a baseband unit (BBU), and a third set of monitoring ports that connect to monitoring/text equipment. The FO modules contain fiber splitters that split off uplink/receive and downlink/transmit signals carried on optical fibers to the third set of monitoring ports. The FO modules may insert in different orientations and directions into different rack mountable enclosure configurations for higher density and more configurable connectivity. A splitter holder is located within the FO module and provides improved optical fiber routing for more integrated module port interconnectivity.
G02B 6/00 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
H04B 10/079 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
H04B 10/80 - Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups , e.g. optical power feeding or optical transmission through water
A breakout assembly includes a housing including a first end and a second end. A retaining member includes a first end configured to receive a fiber optic cable and a second end attaching to the first end of the housing and retaining exposed stripped layers of the fiber optic cable. A breakout head is configured to insert into the second end of the housing and includes holes for receiving furcation tubes. A nut holds the breakout head inside of the second end of the housing. Different optical fibers from the fiber optic cable are inserted into the furcation tubes and held by the breakout head. An outside surface of the breakout head and an inside surface of the second end of the housing have round side surfaces extending between flat top and bottom surfaces that prevent the breakout head from rotating within the housing.
G02B 6/28 - Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
A breakout assembly includes a housing including a first end and a second end. A retaining member includes a first end configured to receive a fiber optic cable and a second end attaching to the first end of the housing and retaining exposed stripped layers of the fiber optic cable. A breakout head is configured to insert into the second end of the housing and includes holes for receiving furcation tubes. A nut holds the breakout head inside of the second end of the housing. Different optical fibers from the fiber optic cable are inserted into the furcation tubes and held by the breakout head. An outside surface of the breakout head and an inside surface of the second end of the housing have round side surfaces extending between flat top and bottom surfaces that prevent the breakout head from rotating within the housing.
G02B 6/46 - Processes or apparatus adapted for installing optical fibres or optical cables
H04B 10/2575 - Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
H04B 10/80 - Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups , e.g. optical power feeding or optical transmission through water
21.
Short-circuit switch having semiconductor switch and arrangement for short-circuiting a three-phase alternating voltage
A short-circuit switch for use with a first electrical conductor and a second electrical conductor includes a controllable semiconductor switch that is configured to short-circuit a voltage present between the first conductor and the second conductor responsive to receipt of a trigger, and a mechanical press-pack structure. The controllable semiconductor switch is a press-pack-type thyristor having a first planar electrode and a second planar electrode on contact sides situated opposite one another. The thyristor is disposed in the mechanical press-pack structure. The mechanical press-pack structure includes: a first terminal electrode that is configured to connect the first planar electrode to the first conductor, wherein the first terminal electrode is resiliently supported by a spring assembly; and a second terminal electrode that is configured to connect the second planar electrode to the second conductor. The press-pack structure forms a protective cover enveloping the thyristor.
H02H 3/00 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H01L 23/051 - ContainersSeals characterised by the shape the container being a hollow construction and having a conductive base as a mounting as well as a lead for the semiconductor body another lead being formed by a cover plate parallel to the base plate, e.g. sandwich type
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
H02H 3/16 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass
H02H 3/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current
22.
Terminal block assemblies and printed circuit board assemblies including same
A printed circuit board (PCB) assembly for use with first and second cables terminated with first and second cable lugs, respectively, wherein each of the first and second cable lugs includes two lug holes defined therein, the includes a PCB and a terminal block. The terminal block includes an electrically insulating base mounted on the PCB, and at least one electrically conductive conductor member mounted on the base and electrically connected to the PCB. The at least one conductor member is configured to engage each of the first and second cable lugs through the four lug holes thereof to electrically in-line terminate the first and second cables at the terminal block.
A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An external surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation. Pluggable surge suppression modules can be used in both the external surge suppression unit and the rack mountable surge suppression unit.
H02H 1/00 - Details of emergency protective circuit arrangements
H01H 1/04 - Co-operating contacts of different material
H02H 3/22 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess voltage of short duration, e.g. lightning
H02H 9/06 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
H01Q 1/50 - Structural association of antennas with earthing switches, lead-in devices or lightning protectors
A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An aerodynamically shaped remote surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. The unit has reduced wind load and reduced weight and can be placed on a wide variety of different radio tower and building structures with tight space restrictions. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation.
H02H 1/00 - Details of emergency protective circuit arrangements
H02H 1/04 - Arrangements for preventing response to transient abnormal conditions, e.g. to lightning
H02H 3/22 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess voltage of short duration, e.g. lightning
H02H 9/06 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
A suppression system provides more effective protection for communication stations with distributed radio and power systems. The suppression system provides surge protection both locally close to the radio station building where the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. Local and remote suppression units may include monitor circuitry that monitor remote and local DC voltage levels and alarm conditions. The alarm conditions may include over-voltage protection failures, intrusions, and/or water infiltration. Displays on both the local and remote suppression units identify the voltage levels and alarm conditions.
A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An aerodynamically shaped remote surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. The unit has reduced wind load and reduced weight and can be placed on a wide variety of different radio tower and building structures with tight space restrictions. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
SURGE PROTECTORS; ENVIRONMENTAL ENCLOSURES, NAMELY, STRUCTURES SPECIALLY ADAPTED TO HOLD AND PROTECT SURGE PROTECTORS, ELECTRICAL POWER CABLES AND FIBER OPTIC CABLES FROM OUTDOOR ELEMENTS AND TAMPERING; ELECTRICAL AND FIBER OPTIC DISTRIBUTION SYSTEMS, NAMELY, POWER DISTRIBUTION PANELS AND FIBER OPTIC POWER DISTRIBUTION PANELS PROVIDING ENGINEERING SERVICES IN THE FIELD OF SURGE SUPPRESSION
28.
MODULAR AND WEATHER RESISTANT OVERVOLTAGE PROTECTION SYSTEM FOR WIRELESS COMMUNICATION SYSTEMS
A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An external surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation. Pluggable surge suppression modules can be used in both the external surge suppression unit and the rack mountable surge suppression unit.
A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An external surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation. Pluggable surge suppression modules can be used in both the external surge suppression unit and the rack mountable surge suppression unit.
A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An external surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation. Pluggable surge suppression modules can be used in both the external surge suppression unit and the rack mountable surge suppression unit.
A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An external surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation. Pluggable surge suppression modules can be used in both the external surge suppression unit and the rack mountable surge suppression unit.
A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An external surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation. Pluggable surge suppression modules can be used in both the external surge suppression unit and the rack mountable surge suppression unit.
H02H 1/00 - Details of emergency protective circuit arrangements
H02H 1/04 - Arrangements for preventing response to transient abnormal conditions, e.g. to lightning
H02H 3/22 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess voltage of short duration, e.g. lightning
H02H 9/06 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
33.
Overvoltage protection system for wireless communication systems
A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An external surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation. Pluggable surge suppression modules can be used in both the external surge suppression unit and the rack mountable surge suppression unit.
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
H02H 3/22 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess voltage of short duration, e.g. lightning
H01Q 1/50 - Structural association of antennas with earthing switches, lead-in devices or lightning protectors
A connection lug comprises an electrically conductive body, an electrically conductive blade connector extending from a first end of the body, and a cable hole located in a second end of the body configured to receive a cable. A clamping cam in the connection lug may rotate inside of the body and clamp against the cable. A screw hole may be configured to receive a clamping screw. A portion of the clamping cam may extend into the screw hole and insertion of the clamping screw into the screw hole may push against the portion of the clamping cam and rotate the clamping cam into the cable hole.
H01R 9/00 - Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocksTerminals or binding posts mounted upon a base or in a caseBases therefor
