Thompson ViBE EM4000, User Manual

Page: 30 / 350

Chapter 2 ’Installation and Startup’ — Mounting in Rack
18 ViBE EM4000 — Release 1.10
User Manual — 46073586AB02
Mounting in Rack
Rack mounting is not mandatory for ViBE EM4000 but the ventilation and
safety requirements given in this section must be observed in all cases.
ViBE EM4000 Installation Requirements
This section lists the principles to be observed and the steps to be taken
when installing ViBE EM4000 in a 19" rack.
Restrictions must be observed:
„ related to ventilation (see section ’Ventilation’ on page 18)
„ related to cabling (see section ’Cabling’ on page 23 )
„ related to EMC ground (see section ’EMC Ground’ on page 23 )
„ related to Power supply and protective ground (see section ’Power
Supply and Protective Ground’ on page 24 ).
Ventilation
Please note that product failure rates are increased by high
temperatures. The following precautions should therefore be observed:
„ Prevent hot air from one device being introduced into other devices.
„ Ensure adequate distribution of air flows to the device intakes.
„ Avoid the effects of natural convection between devices.
„ Avoid hot/cold air short-circuits.
„ Avoid transverse effects in coupled racks.
„ Prevent hot air from accumulating in the rack.
„ Check the air flows: the rack should ensure a sufficient supply of cold
air and sufficient evacuation of hot air (according to the number of
devices mounted in the rack and their corresponding air flows).
The following important requirements should be noted in addition to the
general recommendations:
The chassis must not be fixed with its rack mounting ears only. If you
intend to install it in a rack, L-profiles are required and you must
observe the ventilation and safety instructions described in the
following sections.