59
Cisco Systems, Inc.
www.cisco.com
Technical Specifications
This appendix provides the technical specification for the Cisco IE 4000 switches.
Operating Temperature Specifications
Table 3 on page 59
lists the operating temperatures for the Cisco IE 4000 switches in three different environments.
Note:
The safety certifications apply only to ambient temperatures under 158°F (70°C). However, the
Cisco IE 4000 switch can function in the substation and traffic signal installations under the environmental conditions
shown in
Table 3 on page 59
.
Table 3
Operating Temperature for the Cisco IE 4000 Switches
Industrial Automation and
Hazardous Locations
Substation
Traffic Signal
Enclosure
types
Sealed enclosures
For example: NEMA4, NEMA4X,
NEMA12, NEMA13, IP54, and
IP66.
Vented enclosures
For example: NEMA1, IP20, and
IP21.
Fan or blower-equipped
enclosures
For example: NEMA TS-2.
Note:
The minimum airflow is 150
lfm
1
.
1.
lfm = linear feet per minute.