Juniper M120 - M120 Router Physical Specifications; M120 Cabinet Size and Clearance Requirements; Table 47: M120 Physical Specifications

Table 46: M120 Site Preparation Checklist (continued)
NotesDatePerformed ByItem or Task
Locate sites for connection of system
grounding.
Calculate power budget and power margin.
Related
Documentation
M120 Router Chassis Description on page 7•
• M120 Router Physical Specifications on page 82
• General Safety Warnings for Juniper Networks Devices on page 314
• Installation Safety Warnings for Juniper Networks Devices on page 322
• M120 Chassis Lifting Guidelines on page 321
M120 Router Physical Specifications
Table 47 on page 82 summarizes the physical specifications for the router chassis.
Table 47: M120 Physical Specifications
ValueDescription
•
20.75 in. (52.71 cm) high
•
17.43 in. (44.3 cm) wide
•
24.3 in. (61.7 cm) deep (from front-mounting flange to chassis
rear)
•
Total depth (including cable management system)
29.85 in. (75.8 cm)
Chassis dimensions
•
Chassis with midplane and fans: 110 lb (49 kg)
•
Maximum configuration: 225 lb (102.1 kg)
Router weight
Related
Documentation
M120 Router Description on page 3•
• M120 Router Chassis Description on page 7
• M120 Router Environmental Specifications on page 86
M120 Cabinet Size and Clearance Requirements
The minimum size cabinet that can accommodate the router is 600 mm wide and
800 mm deep. A cabinet larger than the minimum requirement provides better airflow
and reduces the chance of overheating. To accommodate a single router, the cabinet
must be at least 12 U (21 in. or 53.4 cm) high. If you provide adequate cooling air and
airflow clearance, you can stack four routers in a cabinet that has at least 48 U (84 in. or
2.1 m) of usable vertical space.
Copyright © 2018, Juniper Networks, Inc.82
M120 Multiservice Edge Router Hardware Guide