2
A White Paper by one of our Support Engineers can be found on the Telos Systems website at the URL listed below.
It details proper grounding and contains links to some surge suppression products for both the power mains and the
often-
neglected telephone, Ethernet and ISDN line connections that can (and do) conduct powerful surges into the
equipment.
http://www.telos
-
systems.com/techtalk/surge.htm
Installation & Connections
Rack Mounting & Grounding
The Omnia.11 is a large unit so it would be advisable to have the help of an assistant when installing it in the rack.
The Omnia.11 requires four RU (7" [17.78 cm]) of rack space. Pull the outer edge the 2 rack handles towards you
until they lock securely. Then and only then rack mount the unit using all four rack screws! No other two
-
screw
mounting arrangement will secure the unit properly or prevent distortion of the front panel!
Once secured to the rack, slide the release pin for each rack handle toward you and fold the rack handles back to
their normal position
Adequate ventilation should be provided, and although not required, it is always good engineering practice to allow
one blank rack space immediately above and below the Omnia, especially if equipment generating significant heat is
located below the unit. You may install 1RU (1.75") vented or solid rack panels to fill these spaces.
The processor should be installed into a properly grounded 19" equipment rack.
It is a good idea, especially at transmitter sites, to run a separate ground strap or braid from the Omnia.11’s chassis
to a solid rack or station ground point. Although no separate ground lug is provided, the end of the strap or braid can
be clamped under the Omnia’s top cover using the Omnia’s existing top cover screws.
AC Mains Power
Omnia.11 utilizes an un-
switched
EMI-filtered IEC
power
-entry module.
Omnia.11’s automatic voltage
–sensing, high-
efficiency switching
power supply allows it to operate on AC mains voltages from 100 to
240 VAC and from source frequencies of either 50 or 60 Hz.
In the USA or Canada, plug
the provided IEC type AC power cord
into the unit and then into a grounded AC outlet.
Outside of the USA you must use the appropriate power cord that
complies with local electrical regulations.
AC Power Connection
