Installation manual

Rack-Mounting
The rack units should be installed in a 19" cabinet with access to the front and rear. A rack depth
of 700mm minimum is required for clearance of cabling and connectors. Ventilation panels must
be provided to allow a free flow of air both across the rack and from the front to the back. It is
recommended that chassis support rails are used to provide rear support to all units over 3U.
The 17U rack unit is very heavy (over 40kg) and no attempt should be made to move or lift these
without assistance.
Cooling
No specific air conditioning is required for the racks, provided that there is a free flow of air
through the rack from front to back, and that the ambient air is maintained below 30 degrees
centigrade. Therefore it is an installation requirement that all racks are mounted horizontally.
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The bulk power supply requires 150mm (6inches) of clearance front and rear to maintain
adequate airflow.
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The MIOS rack is fan cooled and it is recommended that it should not be sited in noise critical
environments.
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If the MIOS rack isa'Stage box' it will use natural cooling and a minimum of 4U should be left
above the rack to maintain adequate cooling - a Stage MIOS box has a vented lid and is fitted
with mic-line modules only.
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As the Encore Processor Unit and Multichannel AES I/O Unit are fan cooled, it is recommended
that they should not be sited in noise critical environments. If it is required that the Encore unit is
located in the control room, then an enclosure which minimises the noise is recommended.
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Console ventilation slots should not be blocked and air should be free to convect through the
console.
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The console must not be powered up or operated with the dust cover in place.
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Technical Earth
To comply with safety regulations, all AMS Neve systems are supplied to the customer with the
mains earth cable connected to the system chassis. It is the customer’s responsibility to comply
with the local safety regulations; but it is normal practice, after connecting the system to technical
earth to remove the 0V to chassis links as shown on the Power and Technical Earth Interconnect
diagram.
The mains earth connection to the power supplies must not be disconnected.
Safety Earth
Some components of this system are designated high earth leakage (>3.5mA from Live to Earth)
this means that an earth connection is essential to ensure the safety of the equipment. If this is the
case the equipment will be labelled adjacent to the safety earth stud. Separate earth studs are
provided on the equipment which can be strapped together with green/yellow cable of 1.25mm²
or greater. These should be taken to a guaranteed secure earth point within the installation. The
reason for this is to guarantee the safety of the equipment even if the safety earth within the mains
supply cable should become detached.
Logic MMC Installation Manual
Issue 5 Page 4