M40E Connection To Building Structure; M40E Clearance Requirements For Airflow And Hardware Maintenance - Juniper M40E Hardware Manual

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M40e Connection to Building Structure

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Documentation

M40e Clearance Requirements for Airflow and Hardware Maintenance

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Table 15: Spacing of Holes on M40e Front Support Post and
Center-Mounting Bracket (continued)
Router Mounting Rail
Center-mounting bracket
M40e Site Preparation Checklist on page 67
M40e Chassis Description on page 8
M40e Router Physical Specifications on page 269
Always secure the rack to the structure of the building. If your geographical area is subject
to earthquakes, bolt the rack to the floor. For maximum stability, also secure the rack to
ceiling brackets. For more information, see "Rack-Mounting Requirements and Warnings
for M Series, MX Series, and T Series Routers" on page 236.
M40e Site Preparation Checklist on page 67
M40e Chassis Description on page 8
M40e Router Physical Specifications on page 269
When planning the installation site, you must allow sufficient clearance around the rack
(see Figure 39 on page 72):
For the cooling system to function properly, the airflow around the chassis must be
unrestricted. "M40e Cooling System Description" on page 48 depicts the airflow in the
router.
NOTE: If you mount the router in a cabinet, be sure that ventilation is
sufficient to prevent overheating.
For service personnel to remove and install hardware components, there must be
adequate space at the front and back of the router. At least 24 in. (61 cm) is required
both in front of and behind the router. NEBS GR-63 recommends that you allow at
least 30 in. (72.6 cm) in front of the rack and 24 in. (61 cm) behind the rack.
Chapter 5: Preparing the Site for M40e Router Installation
Hole Spacing
3 U (5.25 in. or 13.33 cm)
71