NDS3508B Tuner to IP Gateway User’s Manual
6
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 of ground anti-static material:
1X10
7
~1X10
10
，Grounding current limiting resistance: 1M
(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
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 100V-240V 50/60Hz 2A. Please carefully check before
running.
2.2.3 Grounding Requirement
All function modules’ good grounding designs are 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 cable’s 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
To Next Page
Loading...