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DT-NTSC-32 Manual
2.2.2 Environment Requirement
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 the device.
Grounding conductors must adopt copper conductors in order to reduce high frequency
impedance, and the grounding wire must be as thick and short as possible.
Item
Requirements
Machine
Hall Space
When a user installs a machine frame array in one machine hall, the
distance between 2 rows of machine frames should be 3.93 – 4.92 Ft.
(1.2 - 1.5m) and the distance against the wall should be no less than
2.62 Ft. (0.8m).
Machine
Hall Floor
Electric Isolation, Dust Free
Volume resistivity of ground anti-static material: 1 x 10
7
– 1 x 10
10
^,
Grounding current limiting resistance: 3.28 Ft.(1M) (Floor bearing should be
greater than 1186.51 lb/yd
2
(450Kg/
㎡
)
)
Environment
Temperature
41- 104°F (5 - 40°C) (sustainable), 32- 113°F (0 - 45°C) (short time)
installing air-conditioning is recommended
Relative
Humidity
20% - 80% sustainable 10% - 90% short time
Pressure
12.47 – 15.22 PSI (86 - 105KPa)
Door &
Window
Installing rubber strip for sealing door-gaps and
dual level glasses for window
Wall
It can be covered with wallpaper, or brightness less paint.
Fire
Protection
Fire alarm system and extinguisher
Power
Required device power, air-conditioning power and lighting power are
independent of each other. Device power requires AC power 220V ±10%
50/60Hz or 110V ±10% 50/60Hz. Please carefully check before running.
