Data Sheet
© 2009-2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 8 of 9
Certifications
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24- and 48-port models: UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A
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8-port models: UL, cUL(UL60950-1, CSA (CSA22.2), CB(IEC60950-1), FCC Part 15B (CFR47) Class A, CE mark,
C-tick
Operating temperature 32° to 104°F (0° to 40°C)
Storage temperature –4° to 158°F (–20° to 70°C)
Operating humidity 10% to 90%, relative, noncondensing
Storage humidity 10% to 95%, relative, noncondensing
Predicted mean time
between failures (MTBF)
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ESW-520-8P: 393,993 hours
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ESW-520-24: 308,559 hours
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ESW520-24P: 167,937 hours
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ESW-520-48: 155,680 hours
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ESW-520-48P: 88,810 hours
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ESW-540-8P: 393,993 hours
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ESW-540-24: 173,700 hours
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ESW-540-24P: 100,086 hours
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ESW-540-48: 93,480 hours
Model Fan (Number/Speed) Under 35° Celsius
ESW-520-8P Fanless
ESW-520-24 1/6000 rpm 40.6 dB
ESW-520-24P 2/9000 rpm 50 dB
ESW-540-8P Fanless
ESW-540-24 2/6000 rpm 40.2 dB
Acoustic noise
ESW-540-48 3/9000 rpm 41.4 dB
Package Contents
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Cisco Small Business Pro ESW 500 Series Switch
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Power cord (for 24- and 48-port models)
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Power adapter and cord (for 8-port models)
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Mounting hardware
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Serial cable
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CD-ROM with user documentation (PDF)
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Quick-start guide
Minimum Requirements
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Web browser: Mozilla Firefox version 1.5 or later; Microsoft Internet Explorer version 6.0 or later
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Category 5 Ethernet network cable
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TCP/IP, network adapter, and network operating system (such as Microsoft Windows, Linux, or Mac OS X) installed on each computer in the
network
Ordering Information
Table 2 provides ordering information for the Cisco ESW 500 Series Switches.
Table 2. Ordering Information
Switch Models
Part Numbers Description
ESW-520-8P-K9
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Eight 10/100 PoE ports
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1 expansion port: One 10/100/1000BASE-T and 1 combo* SFP slot
ESW-520-24-K9
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Twenty-four 10/100 Ethernet ports
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4 expansion ports: Two 10/100/1000BASE-T and 2 combo* SFP slots
ESW-520-24P-K9
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24 10/100 PoE ports
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4 expansion ports: Two 10/100/1000BASE-T and 2 combo* SFP slots
ESW-520-48-K9
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Forty-eight 10/100 Ethernet ports
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4 expansion ports: Two 10/100/1000BASE-T and 2 SFP slots
ESW-520-48P-K9
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Forty-eight 10/100 PoE ports
(11 pages)
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