Difference between revisions of "Power Supply Assembly"
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The '''Power-Supply Assembly''' (PSA), or '''Power-Supply Unit''' (PSU), is an obsolete power conditioner for the MCE. It took ±150VDC generated by the [[AC-DC Unit]] (ACDCU) and produced V<sub>core</sub>, V<sub>lvd</sub>, V<sub>a+</sub>, V<sub>a-</sub>, and V<sub>ah</sub> needed to power the cards in the subrack, output on the standard Winchester power connector. (See [[MCE Power]] for details.) | The '''Power-Supply Assembly''' (PSA), or '''Power-Supply Unit''' (PSU), is an obsolete power conditioner for the MCE. It took ±150VDC generated by the [[AC-DC Unit]] (ACDCU) and produced V<sub>core</sub>, V<sub>lvd</sub>, V<sub>a+</sub>, V<sub>a-</sub>, and V<sub>ah</sub> needed to power the cards in the subrack, output on the standard Winchester power connector. (See [[MCE Power]] for details.) | ||
| − | The PSA | + | The PSA was monitored and controlled through a digital controller, the '''Power-Supply Unit Controller''' (PSUC). The PSUC can monitored by the [[Clock card]], and controlled through the obsolete <tt>psu</tt> [[MCE commands#Legacy documents|MCE command target]]. See also the obsolete <tt>[[psu_status]]</tt>. |
Technically, the Power-Supply Assembly (PSA) refers to the combination of a power-supply unit (PSU), which does the power conditioning, and the digital PSUC which operates it. These two parts are housed in a box (the PSA) designed to be mounted in a 72HP [[subrack]], next to the clock card. The smaller 48HP [[subrack]] does not have space for the PSA, and it must be run externally. In practice, the terms "power-supply assembly" and "power-supply unit" used interchangeably to refer to the PSA. | Technically, the Power-Supply Assembly (PSA) refers to the combination of a power-supply unit (PSU), which does the power conditioning, and the digital PSUC which operates it. These two parts are housed in a box (the PSA) designed to be mounted in a 72HP [[subrack]], next to the clock card. The smaller 48HP [[subrack]] does not have space for the PSA, and it must be run externally. In practice, the terms "power-supply assembly" and "power-supply unit" used interchangeably to refer to the PSA. | ||
[[Category:Power]] | [[Category:Power]] | ||
Revision as of 17:17, 7 November 2016
- The following describes an obsolete procedure or component.
The Power-Supply Assembly (PSA), or Power-Supply Unit (PSU), is an obsolete power conditioner for the MCE. It took ±150VDC generated by the AC-DC Unit (ACDCU) and produced Vcore, Vlvd, Va+, Va-, and Vah needed to power the cards in the subrack, output on the standard Winchester power connector. (See MCE Power for details.)
The PSA was monitored and controlled through a digital controller, the Power-Supply Unit Controller (PSUC). The PSUC can monitored by the Clock card, and controlled through the obsolete psu MCE command target. See also the obsolete psu_status.
Technically, the Power-Supply Assembly (PSA) refers to the combination of a power-supply unit (PSU), which does the power conditioning, and the digital PSUC which operates it. These two parts are housed in a box (the PSA) designed to be mounted in a 72HP subrack, next to the clock card. The smaller 48HP subrack does not have space for the PSA, and it must be run externally. In practice, the terms "power-supply assembly" and "power-supply unit" used interchangeably to refer to the PSA.
