Abstract

A method for testing the operation of an optical fiber cable in a communication network using an optical time domain reflectometer (OTDR) instrument includes receiving a range of identifiers of fiber sets to be tested. Identifiers of a first fiber set are displayed. The first fiber set is included in the range and constitutes a next fiber set to be tested. A determination is made whether the first fiber set is connected to the OTDR instrument. In response to determining that the first fiber set is connected to the OTDR instrument, a test of the first fiber set is performed using the OTDR instrument. Identifiers of a second fiber set are displayed. The second fiber set is included in the range and constitutes a next fiber set to be tested.

IPC Classes  ?

• H04B 10/071 - Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]

Abstract

A method and apparatus qualifies a conductor for service and determines imbalance resistance of a conductor. The method and apparatus comprises feeding signals from a controller to termination ends of at least three wires of a conductor. In the controller a resistance difference is determined between first and second wires of the conductor using a measured resistance of one of the three conductor wires as a reference value. The conductor is qualified for services when the resistance difference between the first and second wires is below a threshold.

IPC Classes  ?

• G01R 27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
• G01R 31/00 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere

Abstract

A system, apparatus and method for providing controlled launch conditions to an optical light source comprises adjustable fiber bending/deforming apparatus to allow adjustment of the device such that multimode launch conditions can be accurately controlled. Both LED light source and OTDR/laser implementations are provided.

IPC Classes  ?

• H04B 10/07 - Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
• G02B 6/36 - Mechanical coupling means

Abstract

A testing device which may be used to conduct ground resistance and soil resistivity measurements. The testing device comprises both a main unit and a remote unit adapted to communicate with one another via a communication link. After setting the testing device up according to the desired measurement technique, the procedure may be carried out, and the resulting measurement values are subsequently displayed on the remote unit. This allows a single operator to perform measurements while standing directly adjacent to an electrode, which is, for example, placed at a large distance from the main unit and/or other electrodes. This relieves the operator from constantly having to walk back and forth placing electrodes in different positions, and also obviates the need to return to the main unit of the testing device to consult a display and/or change parameters or settings.

IPC Classes  ?

• G01R 27/20 - Measuring earth resistance; Measuring contact resistance of earth connections, e.g. plates
• G01V 3/02 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation operating with propagation of electric current

Abstract

A testing device which may be used to conduct ground resistance and soil resistivity measurements. The testing device comprises both a main unit and a remote unit adapted to communicate with one another via a communication link. After setting the testing device up according to the desired measurement technique, the procedure may be carried out, and the resulting measurement values are subsequently displayed on the remote unit. This allows a single operator to perform measurements while standing directly adjacent to an electrode, which is, for example, placed at a large distance from the main unit and/or other electrodes. This relieves the operator from constantly having to walk back and forth placing electrodes in different positions, and also obviates the need to return to the main unit of the testing device to consult a display and/or change parameters or settings.

IPC Classes  ?

• G01R 27/20 - Measuring earth resistance; Measuring contact resistance of earth connections, e.g. plates
• G01V 3/02 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation operating with propagation of electric current