General Site Guidelines - Juniper XRE200 Hardware Manual

Table 19: EX Series Switch Environmental Tolerances (continued)
Environment Tolerance
Switch or
device Altitude
EX9251 No performance
degradation up to
The
10,000 ft (3048 m)
maximum
thermal
output is
1705
BTU/hour
(500 W).
XRE200 No performance
degradation up to
10,000 feet
(3048 meters)
NOTE: Install EX Series switches only in restricted areas, such as dedicated equipment rooms
and equipment closets, in accordance with Articles 110– 16, 110– 17, and 110– 18 of the
National Electrical Code, ANSI/NFPA 70.

General Site Guidelines

Efficient device operation requires proper site planning and maintenance and proper layout of the equipment,
rack or cabinet (if used), and wiring closet.
To plan and create an acceptable operating environment for your device and prevent environmentally
caused equipment failures:
Keep the area around the chassis free from dust and conductive material, such as metal flakes.
Follow prescribed airflow guidelines to ensure that the cooling system functions properly and that
exhaust from other equipment does not blow into the intake vents of the device.
Follow the prescribed electrostatic discharge (ESD) prevention procedures to prevent damaging the
equipment. Static discharge can cause components to fail completely or intermittently over time.
Install the device in a secure area, so that only authorized personnel can access the device.
Relative Humidity
Normal operation ensured
in relative humidity range
of 5% to 90%,
noncondensing
Normal operation ensured
in the relative humidity
range 10% through 85%
(noncondensing)
Temperature
Normal operation ensured
in temperature range of 32°
F (0° C) to 104° F (40° C)
Nonoperating storage
temperature in shipping
container: – 40° F (–40° C)
to 158° F (70° C)
Normal operation ensured
in the temperature range
41° F (5° C) through 104°
F (40° C)
54
Seismic
Complies with
Telcordia
Technologies Zone
4 earthquake
requirements
Complies with Zone
4 earthquake
requirements as per
GR-63, Issue 4.