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Cisco ME 3400 Ethernet Access Switch Hardware Installation Guide
OL-7677-04
Chapter 2 Switch Installation
Preparing for Installation
Note The grounding architecture of this product is DC-isolated (DC-I).
You can use the grounding lug to attach a wrist strap for ESD protection during servicing.
Cisco ME 3400-24TS Switches
Warning
This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that
the protective device is rated not greater than:
5 A
Statement 1005
Cisco ME 3400G-12CS Switches
Warning
This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that
the protective device is rated not greater than:
6 A
Statement 1005
Installation Guidelines
When you determine where to place the switch, be sure to observe these requirements:
• For Ethernet ports, including the 10/100, the 10/100/1000 dual-purpose, and 1000BASE-T small
form-factor pluggable (SFP) module ports, cable lengths from the switch to connected devices can
be up to 328 feet (100 meters).
• The cables meet the specifications in the “Cable and Adapter Specifications” section on page A-4.
Each port must match the wave-length specifications on the other end of the cable, and the cable
must not exceed the required cable length.
• Operating environment is within the ranges listed in Appendix B, “Technical Specifications.”
• Clearance to front and rear panels is such that
–
Front-panel indicators can be easily read.
–
Access to ports is sufficient for unrestricted cabling.
–
Rear-panel power connector is within reach of an AC power receptacle.
• Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent
lighting fixtures. Make sure that the cabling is safely away from other devices that might damage
the cables.
• Airflow around the switch and through the vents is unrestricted.
Note If the switch is installed in a closed or multirack assembly, the temperature around it might be
greater than normal room temperature.