Technical data

Technical Specifications
A-4
Environmental Specifications
Attributes Specification
Operating temperature 10 °C to 40 °C (50 °F to 104 °F)
Storage temperature -40 °C to 66 °C (-40 °F to 150.8 °F)
Operating humidity
(noncondensing)
10% to 90% relative humidity,
maximum wet bulb 40 °C (104 °F)
Storage humidity
(noncondensing)
10% to 95% relative humidity,
maximum wet bulb 65 °C (149 °F)
Altitude
Operating
Nonoperating
3,660 m (12,000 ft) maximum
12,200 m (40,000 ft) maximum
Nonoperating shock 30 G, 11 ms halfsine
Environmental Monitoring
DIGITAL PC 3500/5510 computers contain internal circuitry that monitors the various
internal environmental operating conditions of the system.
Operating Temperature
Internal chassis temperature is constantly monitored to ensure that the processor is
within specified operational tolerances. A variable speed fan controls cooling
ventilation to the processor as needed. The system speaker sounds an alarm tone
when the processor temperature exceeds defined limits, and the event is logged with
system management software. Fan operation is shut down during low power,
system suspend modes, reducing acoustic noise emissions.
Processor Voltage
Operating voltage of the processor and system circuitry is very important to system
reliability. If voltages within the computer vary from pre-defined ranges, the system
speaker sounds an alarm, and the event is logged with system monitoring software.
For more information, refer to your ClientWORKS and/or System Software
documentation.