Data surge protection module
First Claim
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1. A data surge protection module comprising:
- a housing;
a printed circuit board within the housing and having;
a termination line for terminating a data line of the module,a first signal line;
a second signal line;
a common return line for said first and second signal lines;
a shield line; and
a chassis ground line;
an avalanche diode having first and second terminals;
a first diode bridge having;
a first, second, third and fourth diodes;
an input terminal connecting the first and second diodes to the common return line for the first and second signal lines;
an output terminal connecting the third and fourth diodes to the termination line;
a first bridging terminal connecting the first and third diodes to the first terminal of the avalanche diode; and
a second bridging terminal connecting the second and fourth diodes to the second terminal of the avalanche diode;
a second diode bridge having;
a first, second, third and fourth diodes;
an input terminal connecting the first and second diodes to the first signal line;
an output terminal connecting the third and fourth diode to the second signal line;
a first bridging terminal connecting the first and third diodes to the first bridging terminal of said first diode bridge and to the first terminal of the avalanche diode;
a second bridging terminal connecting the second and fourth diodes to the second bridging terminal of said first diode bridge and to the second terminal of the avalanche diode;
a third diode bridge having;
a first, second, third and fourth diodes;
an input terminal connecting the first and second diodes to the shield line;
an output terminal connecting the third and fourth diode to the chassis ground line;
a first bridging terminal connecting the first and third diodes to the first bridging terminal of said second diode bridge and to the first terminal of said avalanche diode; and
a second bridging terminal connecting the second and fourth diodes to the second bridging terminal of said second diode bridge and to the second terminal of said avalanche diode.
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Abstract
A data surge protection module which can be added to data and control networks not having such protection. The use of quick connect/disconnect connectors allows the rapid installation or replacement of such modules. a built in ground plate and a braided low impedance conductor offer alternative grounding methods for the module. The module employs two or more diode steering bridges and uses a diode as the surge suppression element.
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Citations
1 Claim
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1. A data surge protection module comprising:
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a housing; a printed circuit board within the housing and having; a termination line for terminating a data line of the module, a first signal line; a second signal line; a common return line for said first and second signal lines; a shield line; and a chassis ground line; an avalanche diode having first and second terminals; a first diode bridge having; a first, second, third and fourth diodes; an input terminal connecting the first and second diodes to the common return line for the first and second signal lines; an output terminal connecting the third and fourth diodes to the termination line; a first bridging terminal connecting the first and third diodes to the first terminal of the avalanche diode; and a second bridging terminal connecting the second and fourth diodes to the second terminal of the avalanche diode; a second diode bridge having; a first, second, third and fourth diodes; an input terminal connecting the first and second diodes to the first signal line; an output terminal connecting the third and fourth diode to the second signal line; a first bridging terminal connecting the first and third diodes to the first bridging terminal of said first diode bridge and to the first terminal of the avalanche diode; a second bridging terminal connecting the second and fourth diodes to the second bridging terminal of said first diode bridge and to the second terminal of the avalanche diode; a third diode bridge having; a first, second, third and fourth diodes; an input terminal connecting the first and second diodes to the shield line; an output terminal connecting the third and fourth diode to the chassis ground line; a first bridging terminal connecting the first and third diodes to the first bridging terminal of said second diode bridge and to the first terminal of said avalanche diode; and a second bridging terminal connecting the second and fourth diodes to the second bridging terminal of said second diode bridge and to the second terminal of said avalanche diode.
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Specification
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Current AssigneeLeviton Manufacturing Company Incorporated
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Original AssigneeLeviton Manufacturing Company Incorporated
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InventorsWakeham, Matthew, Sueoka, Yoshiharu, Bencivenga, Robert, Loftus, Pieter
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Primary Examiner(s)Sircus; Brian
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Assistant Examiner(s)WILLOUGHBY, TERRENCE RONIQUE
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Application NumberUS10/777,587Publication NumberTime in Patent Office1,062 DaysField of Search361/118, 361/119, 361/111, 361/56US Class Current361/119CPC Class CodesG05B 19/058 Safety, monitoringG05B 2219/21154 Over current protectionG05B 2219/21155 Over voltage protectionH05K 9/0066 Constructional details of t...
