HP A-MSR20 Installation Guide

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Table 4 Harmful gas concentration limits in the equipment room
Gas
Maximum concentration (mg/m
3
)
SO
2
0.2
H
2
S
0.06
NH
3
0.05
Cl
2
0.01
Cooling
Air flows through the A-MSR20 from left to right, as shown in Figure 7.
Figure 7 A-MSR20 ventilation
To prevent overheating:
 Provide adequate clearance for air flow.
 Provide at least 10 cm [3.94 in] ventilation space around the router's air intake and outlet vents.
 For heat dissipation and device maintenance, the front and rear of the rack should be at least
0.8 m (2.62 ft) away from walls or other devices.
 The equipment room ceiling height should be no less than 3 m (9.84 ft).
 Make sure the site has an adequate cooling system.
Lightning protection
To protect the router from lightning:
 Make sure the grounding cable of the chassis is grounded properly.
 Make sure the grounding terminal of the AC power receptacle is grounded properly.
 Install a lightning arrester at the input end of the power supply.
 Install a lightning arrester at the input end of outdoor signal lines (for example, E1/T1 line) to which
the router’s interface modules are connected.

HP A-MSR20 Specifications

General

Brand	HP
Model	A-MSR20
Category	Network Router
Language	English