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Chapter 2
Specifications
The following specifications govern the performance of the M522 add-on
module and the environmental conditions under which this performance is
achieved.
Environmental and safety considerations
The M522 meets the Canadian and U.S. mandatory interconnect
requirements for Telephone Equipment.
Temperature
In the Operating State, the M522 temperature range is 0°C to 50°C
(32°F to 122°F).
In the Non-Operating State, the M522 temperature range is -20°C to 70°C
(-6°F to 158°F).
Relative Humidity
20% to 95% (non-condensing). At temperatures above 34°C (93°F), relative
humidity is limited to 52mbar of water vapour pressure.
Electromagnetic Interference
The radiated and conducted electromagnetic interference meets the
requirements of Subpart J of Part 15 of the FCC rules for class B computing
devices.
Atmospheric pollution
The M522 is designed to withstand normal atmospheric conditions
throughout its life and during shipment and storage as defined in the
International Electromechanical Commission (IEC) document 50 (salt, mist,
atmospheric dust, sulfur dioxide, and hydrogen sulfide exposure).
297–2011–208 02.01 Standard February 1999
2-1
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