Cisco IE 4000 Hardware Installation Manual page 19

Switch Installation
Preparing for Installation
– Sides: 2.0 in. (50.8 mm)
– Front: 2.0 in. (50.8 mm)
Contact your Cisco Technical Assistance Centre (TAC) if tighter spacings are required.
Caution: When installed in a Class I, Div/Zone 2 hazardous location environment, this equipment must be installed
in a pollution degree 2 environment per IEC 60664-1)
Caution: This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D, or only nonhazardous locations.
Caution: Airflow around the switch must be unrestricted. To prevent the switch from overheating, there must be the
following minimum clearances:
– Top and bottom: 2.0 in. (50.8 mm)
– Sides: 2.0 in. (50.8 mm)
– Front: 2.0 in. (50.8 mm)
Installation Guidelines
When determining where to place the switch, observe these guidelines.
Environment and Enclosure Guidelines
Review these environmental and enclosure guidelines before installation:

This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II
applications (as defined in IEC publication 60664-1), at altitudes up to 9842 ft (3 km) without derating.

This equipment is considered Group 1, Class A industrial equipment, according to IEC/CISPR Publication 11. Without
appropriate precautions, there may be potential difficulties ensuring electromagnetic compatibility in other
environments due to conducted as well as radiated disturbance.

This equipment is supplied as open-type equipment. It must be mounted within an enclosure that is suitably
designed for those specific environmental conditions that will be present and appropriately designed to prevent
personal injury resulting from accessibility to live parts. The enclosure must have suitable flame-retardant properties
to prevent or minimize the spread of flame, complying with a flame-spread rating of 5VA, V2, V1, V0 (or equivalent)
if nonmetallic. The interior of the enclosure must be accessible only by the use of a tool. Subsequent sections of this
publication might contain additional information regarding specific enclosure-type ratings that are required to
comply with certain product safety certifications.
General Guidelines
Before installation, observe these general guidelines:
Caution: Proper ESD protection is required whenever you handle Cisco equipment. Installation and maintenance
personnel should be properly grounded by using ground straps to eliminate the risk of ESD damage to the switch.
Do not touch connectors or pins on component boards. Do not touch circuit components inside the switch. When
not in use, store the equipment in appropriate static-safe packaging.

If you are responsible for the application of safety-related programmable electronic systems (PES), you need to be
aware of the safety requirements in the application of the system and be trained in using the system.

This product is grounded through the DIN rail to chassis ground. Use zinc-plated yellow-chromate steel DIN rail to
assure proper grounding. The use of other DIN rail materials (such as aluminum, plastic, and so on) that can corrode,
oxidize, or are poor conductors can result in improper or intermittent grounding. Secure the DIN rail to the mounting
surface approximately every 7.8 in. (200 mm), and use end-anchors appropriately.
When determining where to place the switch, observe these guidelines:
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