Abstract: A loop around system and method for use in a telephone line monitors line conditions to detect the initiation of loop testing and automatically bypasses an electronic device, such as a DSL line conditioner, used in the line to prevent the electronic device from being inadvertently detected by the testing system as a line fault. The system additionally shuts down power to itself from the line so that it does not interfere with testing, while continuing to monitor the line during testing to detect conditions that characterize the termination of testing, and then automatically switches the electronic device back into the line upon the conclusion of testing. The system and method may be employed unattended at intermediate locations in the line remote from the CO or the CPE.

Abstract: A system for correlating a subscriber unit to a physical port in a point to multipoint wire line network is disclosed. An installer is prompted to manually input a location code associated with the subscriber. The location code in the subscriber unit is received, and is transmitted via the network to a central repository. The location code is stored in the central repository toward associating the location code with the physical port.

Abstract: A system for remote control of equipment such as office equipment is provided. The system involving a telephone interface and a control system. A method is provided for remote equipment control having steps of installing and configuring equipment. A method is provided controlling equipment remotely having steps relating to using elements of a control system.

Abstract: A liquid discharging device includes: a discharge head mounting unit having first and second electrical terminals; a power source; a switch controlling connection between the power source and the electrical terminals; and a control unit controlling the switch; wherein a driving circuit driving a liquid discharge head is closed by attachment thereof to the mounting unit; the power source can selectively output multiple voltages; and the control unit selectively effects a state for supply of a discharge electrical power, in which electric power sufficient for a discharging actuator of the discharge head to discharge liquid is supplied thereto by controlling the switch, and a state for diagnosis, in which, wherein electric power insufficient for the discharging actuator to discharge liquid is supplied thereto by controlling the switch, and in which the voltage of at least one of the terminals is measured, and information of the state of the power source, discharging actuator, and driving circuit, is obtained.

Abstract: A portable, automated telephone line test device includes a test module which applies test signals to a telephone line to be tested and detects electrical characteristics of the telephone line, and a user interface module. The user interface module includes a microprocessor, a display, a keyboard and a program memory in accordance with a standard microcomputer architecture. The processor of the user interface module is programmed to control the test module to perform a pre-programmed sequence of tests. The display provides indications of the tests being performed. The programmed sequence is varied by the device according to test results. Depending on the results obtained, the device also provides interpretative diagnostic messages and instructs the user to carry out additional test procedures.

Abstract: The invention relates to a device for remote diagnostics of a field device in a process engineering system that is part of a distributed control system. The field devices are connected to I/O units and are operated by a central device. The diagnostics device is functionally divided into a recording unit and a physically separate processing unit. The recording unit and the processing unit are logically connected to one another via a wireless communications link.

Abstract: A portable, automated telephone line test device includes a test module which applies test signals to a telephone line to be tested and detects electrical characteristics of the telephone line, and a user interface module. The user interface module includes a microprocessor, a display, a keyboard and a program memory in accordance with a standard microcomputer architecture. The processor of the user interface module is programmed to control the test module to perform a pre-programmed sequence of tests. The display provides indications of the tests being performed. The programmed sequence is varied by the device according to test results. Depending on the results obtained, the device also provides interpretative diagnostic messages and instructs the user to carry out additional test procedures.

Abstract: A communications device can include first and second input terminals configured to provide coupling with respective first and second conductors of a communications line, and first and second signal conductors respectively coupled with the first and second input terminals. A communications circuit can be coupled to the first and second signal conductors wherein the communications circuit provides a communications interface. A test switch can be configured to electrically couple the first and second signal conductors responsive to activation thereof, and an indicator circuit can be configured to provide indication of a completed electrical circuit through the test switch. Related circuits and methods are also discussed.

Abstract: Systems and methods for detecting a status of a telephone line. Some of the systems include a telecommunications system which comprises a dial tone tester integrated with a demarcation device. Such dial tone testers can include a visual device or an audible device indicative of line status. Various methods are also described for detecting the status of a telephone line. Such methods can include receiving a response originating from a customer premises, viewing a demarcation device located at the customer premises, and determining line status from a dial tone tester integrated with the demarcation device.

Abstract: An apparatus for and method of remotely controlling electronic devices, such as telecommunication equipment attached to telephone lines, test equipment, and/or home electronics includes a master board (105) having its own IP address and arranged and constructed to receive (401) instructions via the internet (103) from a remote terminal (101). The instructions are interpreted and converted into one or more commands that are directed (405) to a slave board (113 or 117) that performs, in response to the command(s), one or more operations on a telephone line and its associated hardware and/or software (115), a piece of test equipment (125), lights (123), or other type of electronic device. Any results of the operations may be returned to the terminal (101).

Abstract: Improved arrangement for interfacing between a Digital Subscriber Line (DSL), and a telephone network and data network. A Low-Pass Filter is mounted together with a POTS (Plain Old Telephone Service) interface circuit to reduce the number of connections to a Main Distributing Frame (MDF). Other arrangements are disclosed for mounting blocking capacitors to isolate a data network test access from the POTS service provision. Advantageously, reliable DSL service is provided at lower operations and apparatus cost.

Abstract: Methods and apparatuses are disclosed for locating trouble in a telecommunications network. One method communicates signals from a central office along a local loop. The local loop comprises a ring wire and a tip wire. Voltage polarity between the ring wire and the tip wire is reversed, causing a customer's wiring to be isolated from the local loop. A test of the local loop may then be remotely performed to determine whether trouble exists in the local loop.

Abstract: A twisted pair status indicator is provided. The twisted pair status indicator may be attached to a twisted pair access terminal to indicate whether the access terminal has available and properly functioning twisted pairs. The twisted pair status indicator may comprise a sliding door that reveals an available indication when the sliding door is moved to one side. When the sliding door is moved to a second side, an unavailable indication is revealed. The indications may be characters, numerals or colors that indicate whether twisted pairs are available. The twisted pair status indicator may also include a lock on the sliding door so that only authorized personnel may make changes to the twisted pair status indicator.

Abstract: A clamp device includes a clamp body comprising a clamp head, a stationary holding part extending downwardly from one end of the clamping head, and a driving handle pivotally installed on one side of the clamping head, and an telephone and network cable test device, comprising a main test set and a secondary test set that is installed in a chamber formed on one end of the main test set, wherein the main test set has a case consisting of a first half and a second half, and the first half and the second half cover the stationary holding part of the clamp body, and wherein a front end of the case of the main test set is fixed on the stationary holding part for integrating the telephone and network cable test device with the clamp body.

Abstract: An apparatus communicates a diagnostic device with a telecommunications service source, or alternatively with a telecommunications service subscriber device, through a remote network unit. The apparatus includes a test plug structure receivable in operative engagement with a panel of over-voltage protection receptacles in the remote network unit. The apparatus further includes an engagement structure which connects the test plug structure with the diagnostic device in a plurality of selectable alternative conditions. These include a first condition in which the engagement structure communicates the diagnostic device with the service source through the test plug structure, and a second condition in which the engagement structure communicates the diagnostic device alternatively with the subscriber device through the test plug structure.

Abstract: A network interface device intended to be placed approximate to the customers equipment and remote from a central office of a telephone company (“TELCO”). The purpose of the network interface device is to allow the twisted pair transmission line between the central office and the customer's port to be selectively switched from a normal monitoring mode into a test mode. The test mode has two phases. In the first phase, the NIU transmits a signal back to the central office. This allows the central office to determine whether there are any problems with the transmission line, the potential bandwidth for the transmission line and related parameters concerning the efficacy and suitability of the transmission line for a variety of communication services. In the second phase, which is entered into upon completion of the first phase, the customer-end ADSL low pass filter is bypassed so that the central office can test the customer's POTS equipment.