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

•
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
Related
Documentation
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
M120 Router Environmental Specifications
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
ValueDescription
No performance degradation to 10,000 ft (4038 m)Altitude
Normal operation ensured in relative humidity range of 5% to 90%,
noncondensing
Relative humidity
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M120 Multiservice Edge Router Hardware Guide