NL7601193A - VOLTAGE DETECTOR. - Google Patents

VOLTAGE DETECTOR.

Info

Publication number
NL7601193A
NL7601193A NL7601193A NL7601193A NL7601193A NL 7601193 A NL7601193 A NL 7601193A NL 7601193 A NL7601193 A NL 7601193A NL 7601193 A NL7601193 A NL 7601193A NL 7601193 A NL7601193 A NL 7601193A
Authority
NL
Netherlands
Prior art keywords
voltage detector
detector
voltage
Prior art date
Application number
NL7601193A
Other languages
Dutch (nl)
Original Assignee
Siemens Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of NL7601193A publication Critical patent/NL7601193A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145—Indicating the presence of current or voltage
    • G01R19/155—Indicating the presence of voltage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H04M3/302—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs
    • H04M3/303—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs and using PCM multiplexers, e.g. pair gain systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/02—Selecting arrangements for multiplex systems for frequency-division multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
NL7601193A 1970-07-31 1976-02-05 VOLTAGE DETECTOR. NL7601193A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702038218 DE2038218B2 (en) 1970-07-31 1970-07-31 DEVICE FOR SUBSCRIBER CONNECTION FUNCTION CONTROL TESTING AND MEASUREMENT IN A SUBSCRIBER CONNECTION MULTIPLEX ARRANGEMENT

Publications (1)

Publication Number Publication Date
NL7601193A true NL7601193A (en) 1976-05-31

Family

ID=5778575

Family Applications (2)

Application Number Title Priority Date Filing Date
NL7110582A NL150295B (en) 1970-07-31 1971-07-30 SIGNAL SYSTEM, ESPECIALLY TELEPHONE SYSTEM WITH MULTIPLE SUBSCRIBER CONNECTIONS.
NL7601193A NL7601193A (en) 1970-07-31 1976-02-05 VOLTAGE DETECTOR.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL7110582A NL150295B (en) 1970-07-31 1971-07-30 SIGNAL SYSTEM, ESPECIALLY TELEPHONE SYSTEM WITH MULTIPLE SUBSCRIBER CONNECTIONS.

Country Status (7)

Country Link
JP (1) JPS5141488B1 (en)
BE (1) BE770678A (en)
CH (1) CH535519A (en)
DE (1) DE2038218B2 (en)
GB (1) GB1329955A (en)
NL (2) NL150295B (en)
SE (1) SE380156B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3215680A1 (en) * 1982-04-27 1983-10-27 Siemens AG, 1000 Berlin und 8000 München Method for testing a subscriber connection circuit and its connected analog subscriber station and subscriber connection line, and circuit arrangement to carry out the method
DE3215670A1 (en) * 1982-04-27 1983-10-27 Siemens AG, 1000 Berlin und 8000 München Subscriber connection circuit with test connections
DE3633057C2 (en) * 1986-09-29 1994-01-20 Kommunikations Elektronik Circuit arrangement for the transmission of information technology signals

Also Published As

Publication number Publication date
SE380156B (en) 1975-10-27
DE2038218B2 (en) 1972-03-09
BE770678A (en) 1971-12-01
CH535519A (en) 1973-03-31
GB1329955A (en) 1973-09-12
NL150295B (en) 1976-07-15
NL7110582A (en) 1972-02-02
DE2038218A1 (en) 1972-03-09
JPS5141488B1 (en) 1976-11-10

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