F-Term-List

H04M3/08-3/14;3/22-3/36@Z;H04Q1/20-1/26

AA00
PURPOSE AND EFFECTS

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. Improvement of service to subscribers

. Simplification of maintenance and operation

. . Prevention of errors in operation

. Increased speed of operation

. Reduced size or weight

. Provision for sharing or economizing

. Prevention of malfunctions or faulty connections

. Improvement of reliability or protection of circuitry

. Prevention of improper use of subscriber terminals or theft

AB00
EXCHANGE SYSTEM

AB01

AB02

AB03

AB04

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AB07

. Space-sharing exchanges

. . Variants that use step-by-step switches

. . Variants that use matrix switches

. . . Variants that use semiconductor switches

. Time-share exchanges

. Packet exchanges

. Optical exchanges

AC00
TYPES OF SIGNALS

AC01

AC02

AC03

AC04

AC05

AC06

AC07

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AC09

. Direct current (DC) signals

. . Intermittent pulse signals (e.g., dial pulses)

. . Reversed polarity signals

. Alternating current (AC) signals

. . Multiple frequency signals (e.g., pulse beacon [PB] signals or multi-frequency [MF] signals)

. . Call signals or bell signals

. . Audible signals

. . . Howlers

. Digital signals or pulse code modulated signals (PCM)

BA00
DEVICES AND FACILITIES THAT ARE MONITORED OR TESTED

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BA08

. Exchanges

. . Channel devices

. . . Channel switching networks

. . . . Junctures, links, or highways

. . . Subscriber circuits

. . . Trunk circuits

. . . Channel controllers

. . . Line scan devices

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BA13

BA14

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BA17

. . Signal processing system devices

. . . Receiving or storage devices (e.g., registers)

. . . Transmitting devices (i.e., senders)

. . . Subscriber line signal devices

. . . Repeater line signal devices

. . . Common line signal devices

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BA23

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BA26

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BA29

. . Central processing system devices

. . . Central controllers

. . . . Distributed control (i.e., multiprocessor systems)

. . . . Wired logic control

. . . . Stored program control

. . . Memory devices

. . . . External memory devices

. . . Data conversion devices (e.g., translators or number groups)

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BA33

BA34

BA35

BA36

BA37

BA38

BA39

BA40

. . Secondary system devices

. . . Fee devices

. . . . Service meters

. . . Accessory devices for special services

. . . Switchboard system devices

. . . Power source devices

. . . Audible signal sources

. . . Clock sources

. . . Maintenance, operating, and monitoring devices, and input/output devices

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. . Links or connectors

. . Spare devices

. . Remotely controlled exchanges

. . Mobile radio exchanges

. . Private branch exchanges or push-button telephone exchanges

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. Lines or transmitting devices

. . Subscriber lines

. . Repeater lines or inter-station lines

. . Dedicated lines

. . Time-share multiplexed transmission lines in which voice lines are modulated and multiplexed by using several pulses in different time slots

. . Optical cables

. . Carrier terminal devices or synchronous terminal devices

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BA65

. Subscriber terminal devices

. . Telephones

. . . Public telephones

. . . Multi-function telephones or complex terminal devices

. . Non-telephone system terminal devices

BB00
PARAMETERS THAT ARE MONITORED OR TESTED

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BB07

. System operating states

. . System configuration states

. . Usage (i.e., free or busy) states

. . . Exchange work rates or overload states

. . . Invalid hold states

. . . . Invalid hold states caused by receiver off-hook or canceled dialing

. . Program abnormality states

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BB12

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. Exchange connecting operations

. . General connections (e.g., outgoing connections, incoming connections, and internal connections)

. . Special service connections or switchboard connections

. . Connection delay time or connection operating time

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. Amount of traffic

. . Traffic per route or location

. . Traffic by each subscriber

. . Number of calls originated

. . Hold time

. . Number of calls connected simultaneously

. . Number of completed or uncompleted calls, number of overflow calls, and rate of calls lost

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. Channel systems or line characteristics

. . Continuity

. . . Continuity among many stations

. . Amplitude levels or attenuation characteristics

. . Impedance characteristics (e.g., resistance values or electrostatic capacitance)

. . Faulty connections or short-circuits

. . Contact, crosstalk, or leaks

. . Noise

. . Polarity

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BB44

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. Signal regularity or characteristics

. . Parity

. . M out of N checking

. . Waveform characteristics

. . . Level characteristics or waveform distortion

. . . Duty ratio or make-or-break rate

. . Pulse spacing or pulse speed

. . Inter-digital spacing (e.g., minimum pause or pre-pause)

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BB52

BB53

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BB55

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BB59

. System processing capabilities

. Circuit operation

. . Operation of relay circuits

. . Operation of semiconductor circuits

. Wire or wiring states

. Mounting states

. Memory contents

. . Station data, subscriber data, or subscriber numbers

. Pull-out

CA00
CONTROL OF EXECUTION OF MONITORING AND TESTING

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CA02

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CA05

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CA07

. Sending of execute instructions

. . Sending for each call (i.e., call by call)

. . Sending periodically

. Procedure or sequence control

. . Control by stored programs

. . . Control using commands provided by maintenance staff

. . . Variants that use spare controllers

CB00
CONNECTION TO AND PRODUCTION OF A BUSY STATE IN MONITORING AND TESTING DEVICES

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CB10

. Connection via channel switching networks

. . Connection by interrupting

. . Connection by designated connections other than dialing signals

. Connection by branching or inserted connections

. Connection by switching

. Connection via scanning devices

. Connection by springs, plugs or jacks

. Connection by relay switches

. Connection by semiconductor switches

. Variants that produce a busy state or produce a busy state in advance

CC00
DEVICES, TOOLS, AND MEANS USED FOR MONITORING AND TESTING

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. Channel devices

. . Subscriber circuits

. . Trunk circuits

. Signal processing system devices

. Central processing system devices

. Secondary system devices

. . Monitoring and testing stands, or monitoring and testing frames

. . . Fault notification desks

. Portable test meters or individual testing tools

. Auxiliary devices for monitoring and testing

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CC12

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CC14

CC15

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CC17

. Simulation means

. . Simulated calls or test call generating means

. . Simulated response means

. Means that generate or send test signals

. Means that return test signals

. Means that receive test signals

. Monitoring means (i.e. call monitoring means)

CD00
METHODS OF DETERMINING ABNORMALITIES OR FAULTS, AND SEARCHING FOR FAULTS

CD01

CD02

CD03

CD04

CD05

CD06

CD07

CD08

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CD10

. Comparison with set values

. . Comparison with various electrical parameters

. . Comparison with required time

. . Comparison with total values

. . . Comparison with total values within a prescribed time

. . . Comparison with totals of differences between two quantities

. . Comparison with amount of change within a prescribed time

. Comparison of digital signal patterns

. Comparison of agreement in duplex systems

. Determination by detecting abnormal operation

CD11

CD12

CD13

CD14

. Searching for locations of faults or breakdowns

. . Cut-off testing

. . Replacement testing

. . Diagnostic dictionaries

DA00
TARGETS TO WHICH THE RESULTS OF MONITORING AND TESTING ARE SENT

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. Monitoring and testing frames, or monitoring and testing stands

. Other stations or target stations

. . Maintenance stations or maintenance centers

. . Stations connected via general telephone lines

. Subscriber terminal devices

DB00
INDICATION AND RECORDING OF MONITORING AND TESTING RESULTS

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. Visible indication

. . Lamps, or light-emitting diode displays (LED)

. . Punching (e.g., trouble recorders)

. . Printing or typing

. . Image display (e.g., on cathode-ray tubes)

. Audible indication

. . Voice notification

. Recording (i.e., other than punching or printing)

DC00
DATA CONTENTS OF MONITORING AND TESTING RESULTS

DC01

DC02

DC03

DC04

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DC06

. Traffic congestion data

. Fault data

. . Fault contents and fault location

. Warnings

. Test or measurement data

. Statistical data or history data

EA00
PROCESSING AND COUNTERMEASURES FOR ABNORMALITIES AND FAULTS

EA01

EA02

. Processing for traffic congestion

. Processing for system faults

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. Regulation of transmission or incoming calls

. . Mitigating loads on originating register connection in case where exchange is overloaded, or cutting off subscriber lines from call detection circuits in case of receiver off-hook or subscriber line faults, etc. "high and dry" etc.

. Regulation of outgoing connections according to location

. Change of alternative connections

. Change of semi-fixed connections

. Change of exchange operation or connection control

. Regulation and control of connections in stages

. Notification of general subscribers about abnormal or fault situations

. . Use of induction rings

EA21

EA22

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EA25

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EA29

. Processing for temporary faults

. . Retrying or reconnecting

. Processing for chronic faults

. . Emergency substitute processing

. . . Emergency processing for an entire system's going down

. . . Emergency processing for part of a system's going down

. . . . Shutting out or production of a busy state in faulty devices

. . . . Switching between in-service and extra duplexing devices

. . . . In-service and spare switching between N+1 spare devices

EA31

EA32

EA33

EA34

EA35

. Saving of data

. . Saving of call data

. Improvement of calls during conversations

. Fee handling

. Initial settings

5K019	MONITORING AND TESTING OF EXCHANGES
	H04M3/08 -3/14;3/22-3/36@Z;H04Q1/20-1/26