HP MSR4000 Router Series Installation Guide

3
Substance Concentration limit (
p
articles/m
3
)
NOTE:
Dust particle diameter ≥ 5 μm
The equipment room must also meet strict limits on salts, acids, and sulfides to eliminate corrosion and
premature aging of components, as shown in Table 4.
Table 4 Harmful gas li
mits in the equipment room
Gas Max. (m
g
/m
3
)
SO
2
0.2
H
2
S 0.006
NH
3
0.05
Cl
2
0.01
Cooling system
The MSR4000 router adopts left to rear airflow for heat dissipation.
Figure 1 Airflow through the MSR4000 chassis
To ensure good ventilation, the following requirements must be met:
• Leave at least 10 cm (3.94 in) of clearance for the air inlet and outlet vents.
• The installation site has a good cooling system.