Preparing For Installation B - Cisco IE 3000 Hardware Installation Manual

Appendix B Installation In a Hazardous Environment
To prevent the system from overheating, do not operate it in an area that exceeds the maximum
Warning
recommended ambient temperature of:
140°F (60°C) Statement 1047
Installation of the equipment must comply with local and national electrical codes. Statement 1074
Warning
To prevent airflow restriction, allow clearance around the ventilation openings to be at least:
Warning
4.13 in. (105 mm). Statement 1076
Warning When you connect or disconnect the power and relay connector with power applied, an electrical arc
can occur. This could cause an explosion in hazardous area installations. Be sure that power is
removed from the switch and alarm circuit. Be sure that power cannot be accidentally turned on or
verify that the area is nonhazardous before proceeding.
Failure to securely tighten the power and relay connector captive screws can result in an electrical
arc if the connector is accidentally removed. Statement 1058
Warning In switch installations in a hazardous location, the DC power source could be located away from the
vicinity of the switch. Before performing any of the following procedures, locate the DC circuit to
ensure that the power is removed and cannot be turned on accidentally, or verify that the area is
nonhazardous before proceeding. Statement 1059
Warning 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 interior of the
enclosure must be accessible only by the use of a tool.
The enclosure must meet IP 54 or NEMA type 4 minimum enclosure rating standards. Statement 1063
If you connect or disconnect the console cable with power applied to the switch or any device on the
Warning
network, an electrical arc can occur. This could cause an explosion in hazardous location
installations. Be sure that power is removed or the area is nonhazardous before proceeding.
To verify switch operation, perform POST on the switch in a nonhazardous location before
installation. Statement 1065
Use twisted-pair supply wires suitable for 86°F (30°C) above surrounding ambient temperature
Warning
outside the enclosure. Statement 1067
Cisco IE 3000 Switch Hardware Installation Guide
Preparing for Installation
B-3