DSX illuminator
First Claim
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1. A monitor circuit for indicating whether a digital signal cross-connect bay has a cross-connect jack that cross-connects equipment being tested, the circuit comprising:
- a sensor having an input operatively coupled to a steady-state DC carrying wire wherein the sensor detects a change in current flowing in the wire and generates an output signal at its output upon detection of a change of current flowing;
a comparator having an input operatively coupled to the output of the sensor wherein the comparator generates an output signal if the output of the sensor is above a predetermined level; and
a filter coupled to a power supply that also supplies power to the cross-connect bay for powering the monitor circuit.
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Abstract
A monitor circuit for indicating whether a digital cross-connect bay has a cross-connect jack that cross connects equipment being tested that includes a non-intrusive sensor for sensing current changes in a power feed line of the bay being monitored. The non-intrusive sensor is operatively coupled to a sensor device that generates a signal to activate an external sensor if a current change is detected by the sensor. The sensor device is powered from the same power supply as the bay it is monitoring.
159 Citations
30 Claims
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1. A monitor circuit for indicating whether a digital signal cross-connect bay has a cross-connect jack that cross-connects equipment being tested, the circuit comprising:
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a sensor having an input operatively coupled to a steady-state DC carrying wire wherein the sensor detects a change in current flowing in the wire and generates an output signal at its output upon detection of a change of current flowing;
a comparator having an input operatively coupled to the output of the sensor wherein the comparator generates an output signal if the output of the sensor is above a predetermined level; and
a filter coupled to a power supply that also supplies power to the cross-connect bay for powering the monitor circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A monitor circuit for indicating whether a digital signal cross-connect bay has a cross-connect jack that cross-connects equipment being tested, the circuit comprising:
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a comparator receiving a signal output by a sensor that senses a change in current in a steady-state DC carrying wire; and
a filter coupled to a power supply that also supplies power to the cross-connect bay for powering the monitor circuit. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 29, 30)
a housing including circuitry of claim 13 or 22 located inside the housing, a sensor input and a power input and wherein the indicator is located on an outside surface of the housing; and
,a sensor connectable to a power feed wire to sense changes in current in the power feed wire, the sensor not being electrically connected in series with the power feed wire, and wherein the sensor is operatively coupled to the sensor input of the housing.
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30. The module of claim 29 further comprising a bracket for mounting the housing on a DSX bay.
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22. A monitor circuit for indicating whether a digital signal cross-connect bay has a cross-connect jack that cross-connects equipment being tested, the circuit comprising:
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a sensor that senses a change in current in a power feed wire of the bay, the sensor not being electrically connected in series with the power feed wire;
a comparator operatively coupled to an output of the sensor; and
an indicator operatively coupled to an output of the comparator wherein the comparator sends a signal to the indicator if the sensor detects a current change in the power feed wire of the bay causing the indicator to generate an indication. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification