FiberLabs Dexin NDS3561C User Manual page 8

Item
Machine Hall Space
Machine Hall Floor
Environment
Temperature
Relative Humidity
Pressure
Door & Window
Wall
Fire Protection
Power
2.2.3 Grounding Requirement
 All function modules‟ good grounding is the basis of reliability and stability of devices.
Also, they are the most important guarantee of lightning arresting and interference
rejection. Therefore, the system must follow this rule.
 Coaxial cables outer conductor and isolation layer should keep proper electric
conducting with the metal housing of device.
 Grounding conductor must adopt copper conductor in order to reduce high frequency
impedance, and the grounding wire must be as thick and short as possible.
 Users should make sure the 2 ends of grounding wire well electric conducted and be
antirust.
When user installs machine frame array in one machine hall,
the distance between 2 rows of machine frames should be
1.2~1.5m and the distance against wall should be no less
than 0.8m.
Electric Isolation, Dust Free
Volume resistivity
7 10
，Grounding current limiting resistance: 1M
1X10 ~1X10
(Floor bearing should be greater than 450Kg/㎡)
5~40℃(sustainable )，0~45℃(short time)，
installing air-conditioning is recommended
20%~80% sustainable 10%~90% short time
86~105KPa
Installing rubber strip for sealing door-gaps and dual level
glasses for window
It can be covered with wallpaper, or brightness less paint.
Fire alarm system and extinguisher
Requiring device power, air-conditioning power and lighting
power are independent to each other. Device power requires
AC power 100-240V 50-60Hz. Please carefully check before
running.
NDS356xC SD IRD User‟s Manual
Requirement
of ground anti-static material:
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