GB1522002A - Monitoring circuit arrangements - Google Patents

Monitoring circuit arrangements

Info

Publication number
GB1522002A
GB1522002A GB32019/75A GB3201975A GB1522002A GB 1522002 A GB1522002 A GB 1522002A GB 32019/75 A GB32019/75 A GB 32019/75A GB 3201975 A GB3201975 A GB 3201975A GB 1522002 A GB1522002 A GB 1522002A
Authority
GB
United Kingdom
Prior art keywords
transistors
transistor
monitoring circuit
alarm
circuit arrangements
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB32019/75A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Corp
Original Assignee
Siemens Corp
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 Corp filed Critical Siemens Corp
Publication of GB1522002A publication Critical patent/GB1522002A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/16—Monitoring arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
GB32019/75A 1974-08-21 1975-07-31 Monitoring circuit arrangements Expired GB1522002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742440098 DE2440098C2 (de) 1974-08-21 1974-08-21 Uberwachungsschaltung fur pilot- und tragerspannungen

Publications (1)

Publication Number Publication Date
GB1522002A true GB1522002A (en) 1978-08-23

Family

ID=5923740

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32019/75A Expired GB1522002A (en) 1974-08-21 1975-07-31 Monitoring circuit arrangements

Country Status (15)

Country Link
JP (1) JPS5146015A (enExample)
AT (1) AT343721B (enExample)
AU (1) AU504612B2 (enExample)
BE (1) BE832619A (enExample)
BR (1) BR7505313A (enExample)
CH (1) CH589976A5 (enExample)
DE (1) DE2440098C2 (enExample)
DK (1) DK375275A (enExample)
FR (1) FR2282758A1 (enExample)
GB (1) GB1522002A (enExample)
IL (1) IL47777A (enExample)
IT (1) IT1041870B (enExample)
NL (1) NL7509907A (enExample)
SE (1) SE398695B (enExample)
YU (1) YU35698B (enExample)

Also Published As

Publication number Publication date
NL7509907A (nl) 1976-02-24
DK375275A (da) 1976-02-22
CH589976A5 (enExample) 1977-07-29
AU504612B2 (en) 1979-10-18
SE398695B (sv) 1978-01-09
JPS5413329B2 (enExample) 1979-05-30
YU35698B (en) 1981-04-30
DE2440098C2 (de) 1976-08-05
BE832619A (fr) 1975-12-16
FR2282758B1 (enExample) 1977-12-16
FR2282758A1 (fr) 1976-03-19
JPS5146015A (en) 1976-04-20
IL47777A (en) 1977-10-31
BR7505313A (pt) 1976-08-03
DE2440098B1 (de) 1976-01-02
AT343721B (de) 1978-06-12
AU8396475A (en) 1977-02-17
YU207775A (en) 1980-10-31
IT1041870B (it) 1980-01-10
IL47777A0 (en) 1975-10-15
SE7509164L (sv) 1976-02-23
ATA591775A (de) 1977-10-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee