Cisco Systems IEM30004PC, IE 3000 Series manual Other Guidelines

Appendix B Installation In a Hazardous Environment

North American Hazardous Location Approval

•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.

•The equipment should be mounted in a suitable enclosure rated to at least IP54 as defined in EN60529 and Pollution Degree 2 as defined in IEC 60664-1 and used within their rated electrical and environmental ratings.

•Provision should be made, either in the apparatus or external to the apparatus, to prevent the rated voltage from being exceeded by transient disturbances of more than 40 percent.

Other Guidelines

These are other installation 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.

•Make sure that all connectors and caps are securely tightened to properly seal the connections against leaks and to maintain IP enclosure-type requirements.

•Personnel responsible for the application of safety-related programmable electronic systems (PES) shall be aware of the safety requirements in the application of the system and shall 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:

•Before installing the switch, first verify that the switch is operational by powering it on and running POST. Follow the procedures in the “Verifying Switch Operation” section on page 2-11.

•For 10/100 ports and 10/100/1000 ports, the cable length from a switch to an attached device cannot exceed 328 feet (100 meters).

•For 100BASE-FX fiber-optic ports, the cable length from a switch to an attached device cannot exceed 6562 ft (2 km).

•Operating environment is within the ranges listed in Appendix A, “Technical Specifications.”

Cisco IE 3000 Switch Hardware Installation Guide

B-6 OL-13017-01