# US 2014/0153918 A1 · Cabling connectivity monitoring and verification > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153918 A1 - Document ID: US20140153918A1 - Status: Published application - Kind: A1 - Application number: 14/086,491 - Filed: 2013-11-21 - Published: 2014-06-05 - Earliest claimed: 2012-11-30 - Assignees: Coming MobileAccess Ltd. - Applicants: Corning MobileAccess Ltd. - Inventors: Ami Hazani - Web page: https://patentgrep.com/patent/US20140153918A1 ## CPC - H04L 43/50: Testing arrangements - H04B 10/07: Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems - H04B 10/25753: {Distribution optical network, e.g. between a base station and a plurality of remote units} - H04L 41/12: Discovery or management of network topologies - H04L 43/0811: by checking connectivity - G01R 31/66: Testing of connections, e.g. of plugs or non-disconnectable joints (testing for incorrect line connections G01R31/55) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) ## Abstract Connectivity between components in a system is monitored by applying a low voltage at one end of an RF cable, interpreted as a “0” logical state, and determining whether a similar voltage appears at the other end of the cable. If the cable is connected properly, the DC voltage applied at one end will appear at the other end and a proper indication is generated. If the expected voltage level does not appear at the other side, it means that RF connection was not correctly established and an alert is generated. Test systems for testing connectivity may include a first component comprising at least one port, at least one capacitor, and at least one resistor for providing high impedance. A controller provides a first logic state to the at least one port, scans multiple input ports of the system, and records a link corresponding to the applied first logic state. ## Claims ### Claim 1 A method of testing a system having plurality of components, each component having at least one port, and a plurality of cables connected to one or more ports of the plurality of components, the method comprising: applying a first logic state to a first port of a first component of the plurality components; scanning multiple input ports of the plurality components; and recording a link corresponding to the applied first logic state at the first port of the first component. ### Claim 2 (depends on 1) The method of claim 1, wherein the first logic state is a logic “0” state. ### Claim 3 (depends on 1) The method of claim 1, further comprising: applying a second logic state to a second port of a second component of the plurality of components; scanning multiple ports of the system; and recording a link corresponding to the applied second logic state at the second port of the second component. ### Claim 4 (depends on 1) The method of claim 1, wherein the steps of applying, scanning, and recording are performed for each port of each component of the system. ### Claim 5 (depends on 1) The method of claim 1, wherein the plurality of components comprises at least a first, a second, and a third component. ### Claim 6 (depends on 1) The method of claim 1, wherein the plurality of components comprises radio frequency (RF) components capable of processing RF signals. ### Claim 7 (depends on 1) The method of claim 1, further comprising: providing a plurality of remote units capable of transmitting wireless signals into respective coverage areas of the remote units, and for receiving wireless signals from their respective coverage areas, the remote units being optically connected to at least one of the components. ### Claim 8 (depends on 7) The method of claim 7, wherein the remote units are optically connected to at least one of the components by a cable including at least one optical fiber. ### Claim 9 (depends on 1) The method of claim 1, further comprising: providing a plurality of remote units capable of transmitting wireless signals into respective coverage areas of the remote units, and for receiving wireless signals from their respective coverage areas, the remote units being electrically connected to at least one of the components, wherein the remote units are electrically connected to at least one of the components by a cable. ### Claim 10 (depends on 1) The method of claim 1, further comprising operating the system to provide wireless services. ### Claim 11 (depends on 1) The method of claim 1, wherein at least one of the ports is an input port. ### Claim 12 (depends on 1) The method of claim 1, wherein at least one of the ports is an output port. ### Claim 13 (depends on 1) The method of claim 1, further comprising resetting the first port prior to the applying of the first logic state to the first port. ### Claim 14 (depends on 1) The method of claim 1, wherein the link is recorded only if the first logic present state is at a second port of the plurality of components during the scanning step. ### Claim 15 A test system for testing a communication system having plurality of components, each component having at least one port, and a plurality of cables connected to one or more ports of the plurality of components, the test system comprising: a first component comprising: at least one port; at least one capacitor; at least one resistor for providing high impedance; a controller configured to: provide a first logic state to the at least one port of the first component; scan multiple input ports of the plurality of components; and record a link corresponding to the applied first logic state at the first port of the first component. ### Claim 16 (depends on 15) The test system of claim 15, wherein the controller applies a logic “0” state. ### Claim 17 (depends on 15) The test system of claim 15, wherein the controller is further configured to: apply a second logic state to a second port of a second component of the plurality of components; scan multiple ports of the plurality components; and record a link corresponding to the applied second logic state at the second port of the second component. ### Claim 18 (depends on 15) The test system of claim 15, wherein the controller is further configured to perform the steps of applying, scanning, and recording for each port of each component of the plurality components. ### Claim 19 (depends on 15) The test system of claim 15, wherein the plurality of components comprises at least a first, a second, and a third component. ### Claim 20 (depends on 15) The test system of claim 15, wherein the plurality of components comprises radio frequency (RF) components capable of processing RF signals. ### Claim 21 (depends on 15) The test system of claim 15, wherein the communication system further comprises: a plurality of remote units configured to transmit wireless signals into respective coverage areas of the remote units, and configured to receive wireless signals from their respective coverage areas, the remote units being optically connected to at least one of the components. ### Claim 22 (depends on 15) The test system of claim 15, wherein the remote units are optically connected to at least one of the components by a cable including at least one optical fiber. ### Claim 23 (depends on 15) The test system of claim 15, wherein the communication system further comprises: a plurality of remote units configured to transmit wireless signals into respective coverage areas of the remote units, and configured to receive wireless signals from their respective coverage areas, the remote units being electrically connected to at least one of the components, and wherein the remote units are electrically connected to at least one of the components by a cable. ### Claim 24 (depends on 15) The test system of claim 15, wherein the at least one port is an input port. ### Claim 25 (depends on 15) The test system of claim 15, wherein the at least one port is an output port. ### Claim 26 (depends on 15) The test system of claim 15, wherein at least one of the at least one capacitor and the at least one high impedance resistor ensure that there is little or no impact on RF signals passing through the communication system. ### Claim 27 (depends on 15) The test system of claim 15, wherein the at least one capacitor has a value of about fifty (50) picoFarads (pF). ### Claim 28 (depends on 15) The test system of claim 15, wherein the at least resistor for providing high impedance has a value of ten kiloOhms (10 KOhm). ### Claim 29 (depends on 15) The test system of claim 15, wherein the at least resistor for providing high impedance has a value of one kiloOhm (1 KOhm).