T640 Clearance Requirements For Airflow And Hardware Maintenance; Figure 51: Typical Open-Frame Rack - Juniper T640 Hardware Manual

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T640 Clearance Requirements for Airflow and Hardware Maintenance

The rack must be strong enough to support the weight of the fully configured router, up

to approximately 565 lb (256.3 kg). If you stack two fully configured routers in one rack,

it must be capable of supporting about 1130 lb (512.6 kg).

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.

T640 Chassis Description on page 13

Installing the T640 Mounting Hardware for a Four-Post Rack or Cabinet on page 93

Installing the T640 Mounting Hardware for an Open-Frame Rack on page 96

When planning the installation site, you need to allow sufficient clearance around the

Figure 52 on page

For the cooling system to function properly, the airflow around the chassis must be

unrestricted.

Figure 47 on page 76

Chapter 4: Preparing for T640 Router Installation

depicts the airflow in the router.