User's Manual

M7X and M7R Page 2-5 Specification
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Environmental
Ambient Temperature Range All models operate with an ambient temperature between -20
o
C and
+55
o
C.
Storage Temperature Range All models can be stored at temperatures between -40
o
C and +70
o
C
without damage.
Humidity Range All models operate at relative humidities between 5 and 95%
non-condensing.
Altitude All models operate at altitudes up to 5000 m and can be transported
at altitudes of up to 15000 m without damage.
Shock and Vibration All models operate after a shock of 40 g from 45 Hz to 2 kHz.
Compliant with EN 60068-2-27.
All models operate during vibrations of 4 to 500 Hz.
Compliant with EN 60068-2-6.
Ingress All models operate in an environment defined in EN 60529 with a
freestanding radio to IP20 and the front of the control head to IP34.
Ventilation All radio models have two independent forced-air ventilation systems.
The first consists of twin fans (for redundancy) mounted on the rear
panel, drawing air in from behind the radio, blowing it unfiltered
through a heat sink assembly isolated from the rest of the radio
(cooling the power supply and RF PA) and exhausting it through the
front panel. The second consists of a single fan mounted on the rear
panel, drawing air in from behind the radio, blowing it unfiltered into the
main chassis (cooling the remaining modules) and exhausting it
through the front panel. Fans are easily disconnected and removed for
replacement. All fans are speed monitored and controlled, dependent
on cooling requirements and environmental conditions.
Warm-up Time All models are fully operational within 20 seconds after switch on, but
the radio frequency reference takes up to 10 minutes to meet the
frequency accuracy specification.