Eia Standard Rack Unit

1u occupies 1 75 inches 44 45 mm of vertical space.

Eia standard rack unit.

Eia 310 is a specification for what is often called the standard rack. The eia 310 specification has been the 19 inch racks standard for equipment for 50 years. This three hole group is defined as a rack unit ru or sometimes just call a u. Eia claims that the reasons for standardization is to increase market share boost quality levels and elevate customer satisfaction though it should be.

Note not all ihv server rack cabinets are built to eia 310 d specifications so be sure and ask. Eia 310 d is the original document issued by the electronic industries association renamed the electronic alliance in 1997 written to standardize varying features of 19 rack cabinets. The electronic industries association eia created the eia 310 d standard in 1992 for cabinets racks panels and associated equipment. Rack unit u or ru the hole spacing for standard 19 inch racks on the mounting flange is spaced in groups of three holes.

Intel designs server chassis to be compatible with racks that are designed to the eia 310 d specifications. This specification standardizes key features of 19 racks such as the rack unit vertical hole spacing horizontal hole spacing rack opening and front panel width. The height of the electronic modules is also standardized as multiples of 1 75 inches 44 45 mm or one rack unit or u less commonly ru. Rack unit zkratka u nebo méně častěji ru je jednotka míry používaná v informačních technologiích k popisu výšky zařízení určeného pro upevnění v racku šíře 19 nebo 23 palců jedna racková jednotka je 1 75 palce 44 45 mm a označuje se zkratkou u např.

Equipment height is also specified in eia units. The document outlines specific guidelines for several important terms often used in the server rack industry. Vertical space within a rack is measured in industry standard eia units where 1 eia unit 1 75 inches 44 5 mm. Udává výšku zařízení umisťovaného do racku nebo celkovou výšku racku.

System configuration is made easier by counting eia units from the base of the rack. This is the same group of people who standardized the term rack unit and other words used in the space today. This specification standardizes several important features of 19 inch racks such as the rack unit ru or u vertical hole spacing horizontal hole spacing rack opening and. The term relay rack appeared first in the world of telephony.

It also defines a similar unit horizontal pitch hp used to measure the width of rack mounted equipment. The rack unit size is based on a standard rack specification as defined in eia 310 the eurocard specifies a standard rack unit as the unit of height. The industry standard rack cabinet is 42u tall however 45u racks are also common. A seamless fit of instrument and rail is ensured.

The latest revision is eia 310 d rack unita rack unit is a unit of measure defined as 1 75 inches.