IDSDM/vFlash card
The XC640 Series system supports Internal Dual SD module (IDSDM) and vFlash card. In the 14th generation of XC Series
Appliance and XC Core System, IDSDM and vFlash card are combined into a single module, and are available in the following
options:
● vFlash or
● vFlash and IDSDM
The IDSDM/vFlash card can be connected in a Dell-proprietary PCIe x1 slot using a USB 3.0 interface to host. IDSDM/vFlash
module supports two micro SD cards for IDSDM and one card for vFlash. Micro SD cards capacity for IDSDM are 16, 32, or 64
GB, while for vFlash the microSD card capacity is 16 GB.
NOTE: One IDSDM card slot is dedicated for redundancy.
NOTE: It is recommended to use Dell branded micro SD cards associated with the IDSDM/vFlash configured systems.
Environmental specifications
NOTE: For additional information about environmental measurements for specific system configurations, see Dell.com/
environmental_datasheets.
Table 21. Temperature specifications
Temperature Specifications
Storage –40°C to 65°C (–40°F to 149°F)
Continuous operation (for altitude less than 950 m or
3117 ft)
10°C to 35°C (50°F to 95°F) with no direct sunlight on the
equipment.
NOTE: Maximum of 205 W, 28 core processor is supported in
systems with eight 2.5 inch processor direct attached PCIe SSD
drives, and three PCIe slot chassis.
NOTE: Certain configurations may have ambient temperature
restrictions. For more information see Ambient temperature
limitations on page 26.
Maximum temperature gradient (operating and
storage)
20°C/h (68°F/h)
Table 22. Relative humidity specifications
Relative humidity Specifications
Storage 5% to 95% RH with 33°C (91°F) maximum dew point. Atmosphere
must be non-condensing at all times.
Operating 10% to 80% relative humidity with 29°C (84.2°F) maximum dew
point.
Table 23. Maximum vibration specifications
Maximum vibration Specifications
Operating 0.26 G
rms
at 5 Hz to 350 Hz (all operation orientations).
Storage 1.88 G
rms
at 10 Hz to 500 Hz for 15 min (all six sides tested).
Table 24. Maximum shock specifications
Maximum shock Specifications
Operating Six consecutively executed shock pulses in the positive and negative x,
y, and z axes of 6 G for up to 11 ms.
Technical specifications 23
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