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Cisco 3200 Series Router Hardware Upgrade Guide
OL-15983-01
Chapter 1 Introduction
Cisco 3230 Rugged Enclosure
Cisco 3270 Router Card Stack
The Cisco 3270 Rugged Enclosure houses a card stack bundle of up to 7 cards. Each bundle contains a
base configuration of the following:
• One Cisco MARC
• One Cisco SMIC
• One Cisco FESMIC
• One Cisco MRPC
• (Fiber-enabled units only) One SFP module
In addition, a card stack bundle can contain from one to three Cisco WMICs.
The cards that make up a Cisco 3270 Router card stack bundle are stacked in the order shown in
Figure 1-6.
Figure 1-6 Cisco 3270 Router Card Stack Bundle with Three Optional WMICs
Note The Cisco 3270 MARC is designed to accommodate up to six more cards on its second PCI bus.
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7
6
5
4
3
2
1
8
9
1 WMIC 1 2 MRPC
3 Cisco 3270 Rugged Router card 4 SMIC
5 FESMIC 6 WMIC 2
7 WMIC 3 8 SFP module
9 Second PCI bus
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