FI45810C - Menetelmä signaalijohtojen signaalitilanteen valvomiseksi, erikoisesti puhelinlaitosten yhdysjohdoissa. - Google Patents

Menetelmä signaalijohtojen signaalitilanteen valvomiseksi, erikoisesti puhelinlaitosten yhdysjohdoissa.

Info

Publication number
FI45810C
FI45810C FI670891A FI89167A FI45810C FI 45810 C FI45810 C FI 45810C FI 670891 A FI670891 A FI 670891A FI 89167 A FI89167 A FI 89167A FI 45810 C FI45810 C FI 45810C
Authority
FI
Finland
Prior art keywords
signal
lines
monitoring
telephone systems
connection lines
Prior art date
Application number
FI670891A
Other languages
English (en)
Swedish (sv)
Other versions
FI45810B (fi
Inventor
Tanke Ullrich
Voegtlen Dieter
Brandt Fritz
Brueninghaus Karl
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
Application granted granted Critical
Publication of FI45810B publication Critical patent/FI45810B/fi
Publication of FI45810C publication Critical patent/FI45810C/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measuring Magnetic Variables (AREA)
  • Geophysics And Detection Of Objects (AREA)
FI670891A 1966-03-31 1967-03-28 Menetelmä signaalijohtojen signaalitilanteen valvomiseksi, erikoisesti puhelinlaitosten yhdysjohdoissa. FI45810C (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES102965A DE1264524B (de) 1966-03-31 1966-03-31 Verfahren zur UEberwachung des Signalzustandes von Signalleitungen, insbesondere von Verbindungsleitungen in Fernsprechanlagen

Publications (2)

Publication Number Publication Date
FI45810B FI45810B (fi) 1972-05-31
FI45810C true FI45810C (fi) 1972-09-11

Family

ID=7524823

Family Applications (1)

Application Number Title Priority Date Filing Date
FI670891A FI45810C (fi) 1966-03-31 1967-03-28 Menetelmä signaalijohtojen signaalitilanteen valvomiseksi, erikoisesti puhelinlaitosten yhdysjohdoissa.

Country Status (10)

Country Link
US (1) US3549813A (fi)
AT (1) AT291358B (fi)
BE (1) BE696408A (fi)
CH (1) CH462898A (fi)
DE (1) DE1264524B (fi)
ES (1) ES338544A1 (fi)
FI (1) FI45810C (fi)
GB (1) GB1177376A (fi)
NL (1) NL6702820A (fi)
SE (1) SE336814B (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT290634B (de) * 1968-05-17 1971-06-11 Siemens Ag Schaltungsanordnung zur Überwachung des Betriebszustandes einer Leitung in Fernmelde-, vorzugsweise Fernsprechanlagen
US3963874A (en) * 1975-01-22 1976-06-15 Stromberg-Carlson Corporation Busy-test arrangement for electronic private automatic branch exchange

Also Published As

Publication number Publication date
BE696408A (fi) 1967-10-02
AT291358B (de) 1971-07-12
US3549813A (en) 1970-12-22
SE336814B (fi) 1971-07-19
NL6702820A (fi) 1967-10-02
ES338544A1 (es) 1968-04-01
DE1264524B (de) 1968-03-28
CH462898A (de) 1968-09-30
GB1177376A (en) 1970-01-14
FI45810B (fi) 1972-05-31

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