HP MSR3000 Router Series Installation Guide
2
• Do not open or close the chassis cover when the router is powered on.
• Correctly connect the interface cables of the router.
• Use an uninterrupted power supply (UPS).
• If there are two power inputs, disconnect the two power inputs to power off the router.
• Do not work alone when the router has power.
• Always make sure the power has been disconnected during the installation and replacement
procedures.
Laser safety
• Do not stare into any fiber port when the router has power. The laser light emitted from the optical
fiber may hurt your eyes.
• Install the dust cover if the fiber port is not connected to a fiber connector to prevent damage to the
fiber port.
Examining the installation site
The routers can only be used indoors. To make sure the router operates properly and to prolong its
service lifetime, the installation site must meet the following requirements.
Temperature and humidity
You must maintain a proper temperature and humidity in the equipment room.
• Lasting high relative humidity tends to cause poor insulation, electricity creepage, mechanical
property change of materials, and corrosion of metal parts.
• Lasting low relative humidity is likely to result in loose screws due to washer contraction, and even
ESD, which causes the circuits to fail.
• A high temperature is the most undesirable condition, because it accelerates the aging of insulation
materials and significantly lowers reliability and service life of the router.
For the temperature and humidity requirements of the MSR3000 router, see Table 2.
Table 2 Temperature
and humidity requirements
Tem
p
erature Humidit
y
0°C to 45°C (32°F to 113°F) 5% to 90% (noncondensing)
Cleanness
Dust buildup on the chassis might result in electrostatic adsorption, which causes poor contact of metal
components and contact points, especially when indoor relative humidity is low. In the worst case,
electrostatic adsorption can cause communication failure.
Table 3 Dust concentration limit in the equipment room
Substance Concentration limit (
p
articles/m
3
)
Dust particles
≤ 3 x 10
4
(No visible dust on desk in three days)