Integrated complete industrial cases with backplane and power supply units for VMEbus systems to be installed in 19” free-standing and tower cabinets. Meet requirements of the EMC shielding. Degree of protection IP20. WME in the standard version has the following dimensions: 3 / 4 / 7 / 8 U, and number of slots – 5 / 8 / 12 / 21. The system includes the 444 W open frame power supply unit (400 W at < 180 VAC). Ventilation based on forced air circulation through the installed ventilation panels.