·
Maximum diameter (
μm)
0.5
1
3
5
Maximum concentration
(Particles/m
3
)
1.4 x 10
7 x 10
2.4 x 10
1.3 x 10
Besides, the contents of salts, acids and sulfides in the air are also strictly limited for the equipment room. These
substances can accelerate metal corrosion and the aging of some parts. Table 2-3 describes the limit of some hazardous
gases such as SO
2
, H
2
S, NO
2
and Cl
2
in the equipment room.
Table 2-3
Gas
Average (mg/m
3
)
Maximum (mg/m
3
)
SO
2
0.2
1.5
H
2
S
0.006
0.03
NO
2
0.04
0.15
NH
3
0.05
0.15
Cl
2
0.01
0.3
Power Supply
DC Connector: 44 V DC to 57 V DC (input voltage), 15 W (minimum power)
Figure 2-1 DC Connector
PoE injector: IEEE 802.3af/802.3at compliant
The DC input power should be greater than the power actually consumed by the system. The input power for
the RG-AP520(DA) should be greater than 12.95 W.