HP8516T 8 CH Mux DVB-T Modulator User’s Manual
6
Item Requirement
Machine Hall Space
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.
Machine Hall Floor
Electric Isolation, Dust Free
Volume resistivity of ground anti-static material:
1X107~1X1010Ω，Grounding current limiting resistance:
1M (Floor bearing should be greater than 450Kg/㎡)
Environment
Temperature
5~40℃(sustainable )，0~45℃(short time)，
installing air-conditioning is recommended
Relative Humidity 20%~80% sustainable 10%~90% short time
Pressure 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
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.
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
