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Liquid Flow-Through (LFT) ATR Platform

VITA 48.4

Increasingly power-hungry OpenVPX modules require a cooling solution guaranteed

to keep the mission on course. From the experts in packaging for extreme

environments comes the VITA 48.4 LFT field-deployable ATR platform.

Elma Electronic’s newest rugged OpenVPX ATR platform is designed to accommodate

boards requiring liquid flow-through (LFT) cooling per the VITA 48.4 standard.

VITA 48.4 establishes the mechanical design interface, outline and mounting

requirements for 6U OpenVPX liquid-flow-through cooled plug-in modules within

associated sub-racks. While the connector layout remains common with VITA 46,

VITA 48.4 standard modules are cooled by liquid flowing through an integral

heatsink. Circuit boards and electronic components are cooled more effectively

as compared to other more traditional cooling methods such as air or conduction

cooling alone. Quick disconnect coupling assemblies allow fluidic coupling to the

chassis manifold.

Backplane

Designed for data rates up to 10 Gbps, the backplane is

designed to handle 300 Watts per slot. It features eight 6U slots

on a 1.2” pitch. Clockable guide pins are included at each slot

to allow for easier keying (angle rotation) without having to deal

with the removal of the backplane from chassis. From left to right:

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Two VITA 62-compliant power supply slots

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Three 6U Payload slots with VITA 67.3c apertures in J3 & J6

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One Switch slot with VITA 67.3d aperture in J6b

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Two 6U Payload slots populated with all J1-J6 connectors

LFTATR_Rev1

Features

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1 ATR tall short

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Rugged, bolted construction

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Liquid flow-through (LFT) cooling compliant to VITA 48.4

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6U OpenVPX backplane with 6-slots on 1.2” pitch supports

300W/slot

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Configurable front I/O connectors on removable panel

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On/off power switch with guard and LED status indicators

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Filtered power input connector

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Individual card coolant flow rates are adjustable with

selectable openings

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Supports dual VITA 62 power supplies

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VITA 46.11 compliant Shelf Manager option

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Designed to meet MIL-STD-461, MIL-STD-810, MIL-STD-1275

DRAWINGS

DESCRIPTION