Testing apparatus for hard disk drive
AssigneesHONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., Hon Hai Precision Industry Co., Ltd.
InventorsZHEN-SHAN CUI, LIAN-ZHONG GONG
Life of this patent
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Abstract
A testing apparatus includes a relay and a connector. The relay includes a coil, first and second single-pole double-throw (SPDT) switches. The first and the second SPDT switches include first and second contacts. The connector includes first and second hard disk drive (HDD) indicator pins, and first and second switch pins. The first contact of the first SPDT switch is grounded. The first contact of the second SPDT switch is connected to the power source. The first HDD indicator pin is connected to a power source. The second HDD indicator pin is connected to the second contact of the first SPDT switch and the second contact of the second SPDT switch. The first switch pin is connected to the power source. The second switch pin is grounded via the coil.
Claims9
A testing apparatus comprising:
- a relay comprising:
- a coil;
- a first single-pole double-throw (SPDT) switch comprising a grounded first contact and a second contact;
- and
- a second SPDT switch comprising a first contact connected to a power source and a second contact;
- and
- a connector comprising:
- a first hard disk drive (HDD) indicator pin connected to the power source;
- a second HDD indicator pin connected to the second contact of the first SPDT switch and the second contact of the second SPDT switch;
- a first switch pin connected to the power source;
- and
- a second switch pin grounded via the coil;
- wherein in testing, the connector is electrically connected to an indicator connector of a host computer to be tested;
- upon the condition that a power switch of the host computer is closed, the second switch pin receives a high level signal, a current passes through the coil, the first contact and the second contact of the first SPDT switch are connected, the second HDD indicator pin receives a low level signal, an HDD indicator of the host computer is light up;
- upon the condition that the power switch is opened, the second switch pin receives a low level signal, no current passes through the coil, the first contact and the second contact of the second SPDT switch are connected, the second HDD indicator pin receives a high level signal, the HDD indicator does not light.
A testing apparatus comprising:
- a relay comprising:
- a coil,
- a first single-pole double-throw (SPDT) switch comprises a grounded first contact, a second contact, and a third contact;
- and
- a second SPDT switch comprises a first contact connected to a power source, a second contact, and a third contact;
- and
- a connector comprising:
- a first power indicator pin connected to the third contact of the first SPDT switch and the second contact of the second SPDT switch;
- a second power indicator pin connected to the second contact of the first SPDT switch and the third contact of the second SPDT switch;
- a first switch pin connected to the power source;
- and
- a second switch pin grounded via the coil,
- wherein in testing, the connector is electrically connected to an indicator connector of a host computer to be tested;
- upon the condition that a power switch of a host computer is closed, the second switch pin receives a high level signal, a current passes through the coil, the first contact and the second contact of the first SPDT switch are connected, the second power indicator pin receives a low level signal, the first contact and the second contact of the second SPDT switch are connected, the first power indicator pin receives a high level signal, a power indicator of the host computer emits a first indication light;
- and wherein upon the condition that the power switch is opened, the second switch pin receives a low level signal, no current passes through the coil, the first contact and the third contact of the first SPDT switch are connected, the first power indicator pin receives a low level signal, the first contact and the third contact of the second SPDT switch are connected, the second power indicator pin receives a high level signal, the power indicator emits a second indication light.
Dependencies are inferred from the claim text.