Juniper MX10008, Hardware Manual

Page: 92 / 361

Follow these environmental guidelines:
•
The site must be as dust-free as possible, because dust can clog air intake vents and filters, reducing the
efficiency of the router cooling system.
•
Maintain ambient airflow for normal router operation. If the airflow is blocked or restricted, or if the
intake air is too warm, the router might overheat, leading to the router temperature monitor shutting
down the device to protect the hardware components.
Table 28 on page 93 provides the required environmental conditions for normal router operation.
Table 28: MX10000 Environmental Tolerances
Tolerance Description
No performance degradation up to 6000 feet (1829 meters). Altitude
Normal operation ensured in relative humidity range of 5% through 90%,
noncondensing.
•
Short-term operation ensured in relative humidity range of 5% through
93%, noncondensing.
NOTE: As defined in NEBS GR-63-CORE, Issue 3, short-term events can
be up to 96 hours in duration but not more than 15 days per year.
Relative humidity
•
Normal operation ensured in temperature range of 32° F through 104° F
(0° C through 40° C).
NOTE: The chassis can be temporarily be operated at 45° C at sea level
for up to 1% of the time ( 3.65 days per year).
•
Nonoperating storage temperature in shipping container: –40° F through
158° F (–40° C through 70° C).
•
Short-term operation ensured in temperature range of 32°F through
104°F (0°C through 40°C) at 6000 ft altitude and 32°F through 114.8°F
(0°C through 46°C) at sea-level.
NOTE: As defined in NEBS GR-63-CORE, Issue 3, short-term events can
be up to 96 hours in duration but not more than 15 days per year.
Temperature
Designed to comply with Zone 4 earthquake requirements per NEBS
GR-63-CORE, Issue 3.
Seismic
93