M120 Router Environmental Specifications; Figure 24: M120 Chassis Dimensions And Clearance Requirements; Table 49: M120 Router Environmental Specifications - Juniper M120 Hardware Manual

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M120 Router Environmental Specifications

86
For service personnel to remove and install hardware components, there must be
adequate space at the front and back of the router. Allow at least 30 in. (76.2 cm) both
in front of and behind the router.
Airflow vents provided along the sides of the chassis must remain open and uncovered
for proper cooling.

Figure 24: M120 Chassis Dimensions and Clearance Requirements

M120 Rack Mounting Requirements on page 83
Installing the Mounting Hardware for a Center-Mount Open-Frame Rack on page 123
Installing the Mounting Hardware for a Front-Mount Four-Post Rack or Cabinet on
page 119
Installing the Mounting Hardware for a Front-Mount Open-Frame Rack on page 121
Installation Safety Warnings for Juniper Networks Devices on page 322
Installing the M120 Router Without Using a Mechanical Lift on page 139
Table 49 on page 86 specifies the environmental specifications required for normal router
operation. In addition, the site should be as dust-free as possible.

Table 49: M120 Router Environmental Specifications

Description
Altitude
Relative humidity
Value
No performance degradation to 10,000 ft (4038 m)
Normal operation ensured in relative humidity range of 5% to 90%,
noncondensing
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