RackPak/4A 4U 19" Rackmount Chassis with 7 6U VMEbus Slots

The Rackpak/4A is a 4U 19" rack mount chassis with with front door for 7 VMEbus slots and 7 transition module slots. The front, soil and cover are RAL 7030 painted. The chassis's cooling is managed by two DC fans.

The system is available with one 250W removable power supply.


Technical Description

  • Compact 19″ VMEbus rackmount carrier with front door, 4U, 383mm depth
  • Front, soil and cover RAL 7030 painted
  • Seven 6U VMEbus slots, VMEbus card cage 40mm behind the front
  • Seven 6U transition module slots in the rear
  • 250W power supply with 85..264VAC universal input
  • 2 DC fans each with 60m³/h, temperature increase at air outlet when fully loaded: 13K w.o. dust filter, 15K with dust filter
  • Monitoring unit with LED indicators and 2 relay outputs for DC voltages, temperature, SYSFAIL, and external signal
  • 3.5″ hard disk drive mounting, optional 4U/10HP drive mounting cassettes available
  • Power key switch on front panel
  • LED indicators for DC voltages
  • Operating temperature range 0..50°C at 180W load in the card cage
  • The chassis complies with EN55011 class B, EN55022 class B, ENV50140, ENV50141, EN 60801 part 2, IEC801 part 2-4, and 6, degree of severity 3.

Order Information


7 slot P1/P2 backplane


7 slot P1, and 1 slot P2 backplane


7 slot VME64 backplane w.o. P0 connector


7 slot VME64 backplane with P0 connector


Front panel 6U/4HP for unused VMEbus slots


Front panel 6U/4HP with EMC spring contact for unused transition module slots


Drive mounting cassette with extract 102x26mm


Drive mounting cassette with extract 102x41.5mm

Technical Documentation

RackPak/4A User Manual