Datasheet
Data Sheet
© 2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 15 of 23
WS-X4148-RJ21:
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48 ports
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Telco 10/100BASE-T module (4 x RJ-21)
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Cisco IOS Software Release 12.1(8a)EW or later
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IEEE 802.3
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Enterprise and commercial: high-port-density solution with improved cable management
RJ-21 connectors for desktop connectivity
Classic Fast Ethernet over Fiber
Figure 24 shows the WS-X4248-FE-SFP.
Figure 24.
WS-X4248-FE-SFP Cisco Catalyst 4500 Fast Ethernet Switching Module, 48-Port 100BASE-X (SFP)
WS-X4248-FE-SFP:
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48-port 100BASE-X (SFP optional)
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Customers can mix and match 100BASE-X SFP optics on the same line card.
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An alternative to the Cisco Catalyst 4500 fixed 100BASE-X line cards (WS-X4148-FX-MT,
WS-X4124-FX-MT, WS-X4148-FE-LX-MT and WS-X4148-FE-BD-LC).
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SFP optics supported in Cisco IOS Software Release 12.2(25)SG include 100BASE-FX,
100BASE-LX10, 100BASE-BX-D, and 100BASE-BX-U.
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IEEE 802.3, IEEE 802.3ah, IEEE 802.3x flow control
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Enterprise and commercial: fiber-to-the-desktop applications
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Metro Ethernet: For service providers running point-to-point Fast Ethernet to the home or
business
Figure 25 shows the WS-X4124-FX-MT.
Figure 25. WS-X4124-FX-MT Cisco Catalyst 4500 Fast Ethernet Switching Module, 24-Port 100BASE-FX
(MT-RJ)










