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Juniper was the first North American IP routing vendor to achieve the prestigious TL 9000 certification by the Quality of Excellence for Suppliers of Telecommunications (QuEST) Forum in the router category, for design, development, provision and service and support.
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It's the world-class service and support that you expect from a company that delivers the industry's best infrastructure and security products. With J-Care, you now have the confidence knowing that Juniper will do our part to keep you on top of the world!
MX960 Cooling System Description
The cooling system consists of the following components:
- Upper front fan tray
- Lower front fan tray
- Front air filter
The cooling system components work together to keep all router components within the acceptable temperature range (see Figure 1, Figure 2, Figure 3, and Figure 4). The router has two fan trays located in the front of the router that install horizontally above and below the card cage. Each fan tray contains six fans. The fan trays are interchangeable and are hot-insertable and hot-removable.
Figure 1: Airflow Through the Chassis
The host subsystem monitors the temperature of the router components. When the router is operating normally, the fans function at lower than full speed. If a fan fails or the ambient temperature rises above a threshold, the speed of the remaining fans is automatically adjusted to keep the temperature within the acceptable range. If the ambient maximum temperature specification is exceeded and the system cannot be adequately cooled, the Routing Engine shuts down the system by disabling output power from each PEM.
There is a single air intake in the front of the router. Air is pushed up through the DPC card cage and through the upper fan tray where it combines in a common exhaust plenum and is exhausted out the upper rear of the system.
Figure 2: Upper Fan Tray
Figure 3: Air Filter
Figure 4: Air Filter Tray
