Emi Recommendations; Power Requirements And Heat Dissipation - Cisco Catalyst 4900M Installation Manual
Cisco systems switch installation guide
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- Installation manual (152 pages) ,
- Troubleshooting manual (6 pages) ,
- Configuration handbook (359 pages)
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Chapter 2
Site Planning
Ultimate disposal of this product should be handled according to all national laws and regulations.
Warning
Statement 1040
EMI Recommendations
Follow these guidelines when setting up the site wiring. When planning the location of the new system,
consider electromagnetic interface (EMI), the distance limitations for signaling, and connector
compatibility.
When wires are run for any significant distance in an electromagnetic field, radio frequency interference
(RFI) can occur between the field and the signals on the wires.
•
•
To predict and remedy strong EMI, you might need to consult RFI experts.
Note
Power Requirements and Heat Dissipation
The power requirements might be useful for planning the power distribution system needed to support
the switches. Heat dissipation is an important consideration for sizing the air-conditioning requirements
for an installation. Refer to
Catalyst 4900M switch.
You will also need to provide power to the switch with the appropriate AC power cord for your location.
Table 2-1
power supply. The table includes references to illustrations of the AC power cords.
Table 2-1
Locale
Argentina
Australia,
New Zealand
Continental Europe CAB-CEE77-C15-EU=
Italy
North America,
Japan
78-18350-02
Bad plant wiring can result in radio frequency interference.
Strong EMI, especially when caused by lightning or radio transmitters, can destroy the signal drivers
and receivers in the switch and can create an electrical hazard by conducting power surges through
lines and into equipment.
Appendix A, "Specifications,"
lists the specifications for the AC power cords that are available for the 1000 W AC-input
1000 W AC-Input Power Supply Power Cords
Power Cord Part Number
CAB-IR2073-C15-AR=
(was CAB-7KACR=)
CAB-AS3112-C15-AU=
(was CAB-7KACA=)
(was CAB-7KACE=)
CAB-C2316-C15-IT=
(was CAB-7KACI=)
CAB-US515-C15-US=
(was CAB-7KAC=)
for the power and heat ratings for a
AC Source Plug
Cordset Rating
Type
IRAM 2073
10 A, 250 VAC
SAA AS 3112
10 A, 250 VAC
CEE 7/7
10 A, 250 VAC
CEI 23-16/7
10 A, 250 VAC
1
NEMA 5-15
13 A, 125 VAC
Cisco Catalyst 4900M Switch Installation Guide
Site Power Requirements
Power Cord
Reference
Illustration
Figure 2-1
Figure 2-2
Figure 2-3
Figure 2-4
Figure 2-5
2-3
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Table of Contents
Troubleshooting
