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DE1588941A1 - Circuit arrangement for monitoring the voltage on electrical lines, in particular the lines of the telephone network - Google Patents

Circuit arrangement for monitoring the voltage on electrical lines, in particular the lines of the telephone network

Info

Publication number
DE1588941A1
DE1588941A1 DE19671588941 DE1588941A DE1588941A1 DE 1588941 A1 DE1588941 A1 DE 1588941A1 DE 19671588941 DE19671588941 DE 19671588941 DE 1588941 A DE1588941 A DE 1588941A DE 1588941 A1 DE1588941 A1 DE 1588941A1
Authority
DE
Germany
Prior art keywords
trl
lines
voltage
over
telephone network
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.)
Pending
Application number
DE19671588941
Other languages
German (de)
Inventor
August Woerl
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE1588941A1 publication Critical patent/DE1588941A1/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/82Line monitoring circuits for call progress or status discrimination

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Description

@;chaltunguanordnung zur Urer- achung des' Puf elektricchen -1,eit;zn:-en -, irdbP::onderp der Zeitungen aes Fernsprechnetzts giht ft`äi.1e, in denen die s"fcrttre Anzer?e vcn Spannungsausfällen auf e ie'ztria2her; -.e_tungen insbe:#-,onäere Leitungen des: @'erns orechr:2tzes unbe ° `n=-t T.Dtwen-i;ist:_iipu ist =t-esne?:ew#eise der 2r411 bei hrzter. in ländlichen wca eine s,f rtie:#e telefdnil-h @r@zuf_r-=rnü@ ärzt?i-"e Vierei-- gung; lr-berisn@tr;en;?ig sein :-ann. Aucsan angesccs.1,enen Zintvuch-bz@v. uter f F, L 1-..e? :4e anl°- : jn selbsttäti--en 'relefc:n-@ötrt@@'-,äh'_:reräten bei ankn gase eine ,)törung- ir: Telefonnetz ui.-1 a.r::it aer sonri. angezei-t -Prden,da^:t ;ie schnellstens beeit:t kann, -Gberwachurisancrdnun#-'en dieser Art .,.:s..en hehrere !sdin`un=#en erfüllen a.) sie dürfen das Telefonnetz leietun.m;L:.: i; nicht bzw. nur unmerklich belasten. b)` sie dürfen nicht,auf Ja-- '-et-- rückv.iren. c)- sie ;nüsseilrs@.=tmöglicheici@ar?-,eit ,-e;en- eh @aizeae:@ bieten. Es darf z.13. bei äpnnn ;ngsumtsusch im Amt, bei der. grossen - ßpanrungsschwankungen beim iarechen und bei d-r übertragun g der lählimpulse keine Störanzeige erfll;;en. Wenn der Telef=:napparat nicht in Betrieb ist , beträt die Adernspannung normalerwewe 6o VolteWird die Wählscheibe nach rechts gedrehtgist die Spannung kurzgeschlossen. Die Wählimpulse wechseln zwischen lull und 6.; V--1t, Während dar Sprachübertragung beträgt die ;Spannung am Übertra- ger-etwa ei Volt. Die Anlage muse alsa,um bei diesen kurzzeitigen SPannungeschwankungen nicht anzusprechen, eins gewisse Ansprech- verzögerung aufweisen. 13e1 der Schaltungeanorinung zur Überwachung des Betriebs- zustandes elektrischer leitungeri insbesondere der leituhgen des fernsprechnetzt bei der Teilnehmerstation insbesondere Telefon-Notruf-=ählgeräten wird die gestellte Aufgabe durch die Kombination nachfolgender Merkmale gelöst: a.)' eine Brückengleichrichterschaltungt bYdie Parallelschaltung eines gandensatars mit einer:Zenerdiode, c) en Hcichohm-Netzwerk dein transistorgesteuerten Schaltrelais l9) ein Alarmgeber . __ _. _.. _ :. Die ';`irkunswei;3e soll anhand der Abb.l und 2 besc=3rieben werde:i,wobei gleiche Teile mit gleichen Bezuszeiz°nen veraehen sind. .r- N= c}i Abb.1. =Kird die a-b-Leitun-- über z"# ei stände ( Rl , R2 ari die Diagon,lpurikte einer Gleichrichter- ) brücke ( 31 ) gelegte die gewährleistet, dass 'auch bei l"o1@ritäts- umsch-iltun.r im Amt die pannuri: an den beiden anderen Diagonal- L' nicht umgekehrt wird, Über den beidF-n anderen Diagonalpunktpn der ileichrichterbrücke liegt Eine Zänerdiode(Z), @velche die .7pai@nung -@;orstant auf zigutsaiaza b V lt hält und der Kondensator ( 0 ),der so bemessen ist, ;lass bei kurzzeitigem Spannungsausfall ( bei dtr Nummernwahl ) die Vorrichtung noch nicht anspricht. aber zwei in Cascade ges cha ltet- Transistoren Trl und Tr2,die bei Vorhandensein der Adernspannung leitend sind, wird das ielais ( A ) dauernd unter itrom gehalten. Fällt die Adernspannung aus, so -.:erden n: eh Entladung des Kondensators ("Ily) die Transistoren Trl und Tr2 nichtleitend, das Relais (A) wird stromlos und sein Ruhekont-,kt (a) schaltet einen Alarm- gebar z.3. die Klingel (K). -, Nach Abb.2 lässt sich die .:chaltunb so ändern,dass im Normalzustand ,d,h. bei vorhandener Adernspann,ung der -'.#)trotrt- verbrauch der Bntterie praktisch gleich Null ist. Bei Anliegen der Adernspannung ist die Basis der Transistors(Trl) positiver , als sein Emitter,er leitet und zieht über den sehr hohen Widers tand (R5) von etwa 1,5 Megohm einen ganz geringen Strom. Der.z;id:-,#ratand (R6) beträgt etwa o5 7,'egohmq Die Baalemoten-- tiale der Transistoren ( 2 Tr3) liegen dann auf Bmitter- potential und sind deshalb nicht leitend. Bei Fortfall der Aderhspännung und Entladung des Kindengaters (G) sperrt _d:r Transstor(Trl)*.Dadurch werden die beiden folgenden 1'raneistoren leitend und das A-Relaia zieht Strom. Durch Schliessen des: Kontaktes (z) gabt die-lingel (K7)Alarm, @; circuit arrangement for the origin of the ' Puf elektricchen -1, eit; zn: -en -, irdbP :: onderp of the newspapers aes Telephone network giht ft`äi.1e, in which the s "fcrttre indications vcn Power failures on a tria2her; -.e_tungen especially: # -, onäere Lines of: @ 'erns orechr: 2tzes unbe ° `n = -t T.Dtwen-i; is: _iipu ist = t-esne?: always the 2r411 at hrzter. in rural wca a s, f rtie: #e telefdnil-h @ r @ zu_r- = rnü @ ärzt? i- "e four- gung; lr-berisn @ tr; en;? ig be: -ann. Aucsan ansccs.1, enen Zintvuch-bz @ v. uter f F, L 1 - .. e? : 4th anl ° -: jn automatic - en 'relefc: n- @ ötrt @@' -, uh '_: devices at ankn gase one ,) disturbance- ir: telephone network ui.-1 ar :: it aer sonri. indicated -prden, that ^: t; ie be cleared as soon as: t can, -Gberwachurisancrdnun # - 's of this kind.,.: S..en hehrere! Sdin`un = # en fulfill a.) they are allowed to line the telephone network m; L:.: i; not or only burden imperceptibly. b) `You must not turn back to Yes-- '-et--. c) - they; nüsseilrs @. = tmögereici @ ar? -, eit, -e; en- eh @aizeae: @ offer. It may e.g. 13. at äpnnn; ngsumtsusch in office, at the. huge - Voltage fluctuations when computing and transferring counting pulses do not fulfill a fault display. When the telephone =: napparat is not in operation, the core voltage is normalerwewe 6o volts If the dial is turned to the right, the voltage is applied shorted. The dialing pulses alternate between lull and 6 .; V - 1t, During the voice transmission, the voltage on the transmission ger-about one volt. The plant muse alsa to cope with these short term Not to address voltage fluctuations, a certain response show delay. 13e1 of the circuit arrangement for monitoring the operational state of electrical wiring in particular of the lines of the telephone networks at the subscriber station in particular Telephone emergency call devices are given the task by the Combination of the following features solved: a.) ' a bridge rectifier circuit bY the parallel connection of a gandensatar with a: Zener diode, c) en Hcichohm network your transistor-controlled switching relay l9) an alarm giver. __ _. _ .. _:. The ';`irkunswei; 3e should be described on the basis of Figs. 1 and 2 will: i, whereby the same parts have the same designations are. .r- N = c} i Fig.1. = Kird the starting line via z "# ei stands (Rl, R2 ari the diagon, lpurikte of a rectifier ) bridge ( 31 ) which ensures that 'even with l "o1 @ rity- umsch-iltun.r in office the pannuri: on the other two diagonal L 'is not reversed, About the twoF-n other Diagonal point of the ileichrichterbrücke is a Zener diode (Z), @velche die .7pai @ nung - @; orstant on zigutsaiaza b V lt holds and the capacitor (0), which is dimensioned in such a way as to; leave at short-term Power failure (with dtr number dialing) the device still does not respond. but two cascaded transistors Trl and Tr2, which are conductive when the core voltage is present, the ielais ( A ) is kept permanently under itrom. Falls the Wire voltage off, so -.: earth n: eh discharge of the capacitor ( "Ily ) the transistors Trl and Tr2 non-conductive, the relay (A) is de-energized and its idle contact (a) switches an alarm gave birth to 3rd the bell (K). -, According to Fig.2, the.: Chaltunb can be changed so that in Normal state, i.e. with existing wire tension, and the - '. #) trotrt- Consumption of the battery is practically zero. If you have any concerns the core voltage is the base of the transistor (Trl) more positive, as its emitter, it conducts and draws over the very high Resistance (R5) of around 1.5 megohms has a very low current. Der.z; id: -, # ratand (R6) is about o5 7, 'egohmq Die Baalemoten-- tial of the transistors (2 Tr3) are then on the emitter potential and are therefore not conductive. If the Wire tension and discharge of the child gater (G) blocks _d: r Transstor (Trl) *. This creates the following two 1'raneistors conductive and the A-Relaia draws current. By closing the: Contact (z) gave the-lingel (K7) alarm,

Claims (1)

P, tentenspr"che. zur ü1;eic1:aa des ä@etr@ t?@su.@t@@ndes elektr@:c=@hr _.eitui@.@-cn insbesonE@Fre dr@reitt@n'°fü de:: Perncprechraetz.-s bei cicr TeilnF@tm(-r: tation insbesondere T:lciön-.o`.;rüf--@ähler@;trn: _e',-er,nzeichxiet d :rc'.: die Kom1:in'-- ti.._n nnchf 1-@=ci@?er 1._erkn:- 1P a) eine, @:@°e@d@E°'.1;l@c@@richtc@r: c#.'@@ ltun@ (@1) b) eine B -r:-# @lel :@:@=1tu@@J eines Kcnd: nsators (0) mit, einer Zenerdicde (Z) c) ein- @loohol?m-i%'etzi@!erk (R1 ;; -R4 ) d) Pi n trans-ii:torge.t eucrtes "c'_ialtrelais ( Trl bis, Tr3, A, H ) e) ein Alarmg-ber (a , K) __ Je'-@ nach Anspruch 1 dadurch t ekerinzeic}inet, Rpl#-i---nordnurg aus ei Sem v #_ der Iderirs:-) #:ring il. _ eitriohtung v-,rkjespnnten er: ei. Tr,-nsis- tor (Trl) be:teht,über'dessen Emitt,r-fisllektorstrecke die Selen ;`f-r `railsistoren ( Tr2,TP3) einer Transistorkaskade uf Umitterpotenti,-l lie..en und s -langeesperrt sind,his bei Adernspar_Lung-ausfnll der Transistor (Trl),mit d-r Basis über einen 't iderstand (R6) mit dem Emitter verbunden t sperrt tznd die Besen über den ;, iderttand -(R3) positiv t"ejen7ber ihren vmittern' "*erdeb und sie leitend werden lassen,
P, tentenspr "che. zur ü1; eic1: aa des ä @ etr @ t? @ su. @ t @@ ndes electr @: c = @ hr _.eitui @. @ - cn in particular @ Fre dr @ reitt @ n '° fü de :: Perncsprechraetz.-s at cicr TeilnF @ tm (-r: tation in particular T: lciön-.o`.; Rüf - @ ähler @; trn: _e ', - er, nzeichxiet d: rc' .: die Kom1: in '- ti .._ n nnchf 1 - @ = ci @? er 1._erkn: - 1P a) a, @: @ ° e @ d @ E ° '.1; l @ c @@ richtc @ r: c #.' @@ ltun @ (@ 1) b) a B -r: - # @lel: @: @ = 1tu @@ J of a customer: nsator (0) with, one Zenerdicde (Z) c) ein @loohol? mi% 'etzi @! Erk (R1 ;; -R4) d) Pi n trans-ii: torge.t eucrtes "c'_ialtrelais (Trl bis, Tr3, A, H) e) an alarm device (a , K) __ Je '- @ according to claim 1 thereby t ekerinzeic} inet, Rpl # -i --- north only from ei Sem v #_ der Iderirs :-) #: ring il. _ eitriohtung v-, rkjespnnten he: ei. Tr, -nsis- tor (Trl) be: teht, over'whose emitt, r-fisllektor section the Selenium; `for` railsistors (Tr2, TP3) of a transistor cascade uf Umitterpotenti, -l lie..en and s -long are locked, up to and including Adernspar_Lung-ausfnll the transistor (Trl), with the base over a 't resistance (R6) connected to the emitter t blocks the Broom over the;, iderttand - (R3) positive t "ejen7ber their vmittern '"* erdeb and let them become leading,
DE19671588941 1967-04-07 1967-04-07 Circuit arrangement for monitoring the voltage on electrical lines, in particular the lines of the telephone network Pending DE1588941A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW0043715 1967-04-07

Publications (1)

Publication Number Publication Date
DE1588941A1 true DE1588941A1 (en) 1970-03-05

Family

ID=7603765

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19671588941 Pending DE1588941A1 (en) 1967-04-07 1967-04-07 Circuit arrangement for monitoring the voltage on electrical lines, in particular the lines of the telephone network

Country Status (1)

Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105872A (en) * 1977-03-01 1978-08-08 Siemens Aktiengesellschaft Electronic telephone system including interexchange trunk repeaters for traffic with other systems
DE3712324C1 (en) * 1987-04-11 1988-08-25 Zettler Elektrotechn Alois Monitoring circuit for an ancillary telephone device
US4969179A (en) * 1990-01-09 1990-11-06 Edward Kanare Telephone line monitoring circuit for providing a visual and auditory signal if the telephone line becomes inoperative

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105872A (en) * 1977-03-01 1978-08-08 Siemens Aktiengesellschaft Electronic telephone system including interexchange trunk repeaters for traffic with other systems
DE3712324C1 (en) * 1987-04-11 1988-08-25 Zettler Elektrotechn Alois Monitoring circuit for an ancillary telephone device
US4969179A (en) * 1990-01-09 1990-11-06 Edward Kanare Telephone line monitoring circuit for providing a visual and auditory signal if the telephone line becomes inoperative
US5062131A (en) * 1990-01-09 1991-10-29 Edward Kanare Telephone line monitoring circuit for providing a visual and auditory signal if the telephone line becomes inoperative

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