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© 2012 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 5 of 17
Figure 4. Ring Topology
Figure 5. Star Topology, Using an XPS
The Cisco StackPower cables are thick but flexible, and they carry power as well as a data signal to provide a
communications channel among the switches in the power stack. Table 1 shows Cisco StackPower and XPS
Cables.
Table 2. Cisco StackPower and XPS Cables
Product ID Description
CAB-SPWR-30CM 30cm StackPower cable
CAB-SPWR-150CM 150cm StackPower cable
CAB-XPS-58CM 58cm Short XPS cable
CAB-XPS-150CM 150cm Short XPS cable
StackPower and XPS cables are keyed and have colored bands on the ends to help you understand what cable
plugs into what switch or XPS.
A StackPower cable has colors bands on the cable ends, green on one end and yellow on the other end. This
cable can be used between Catalyst 3750-X switches and an XPS. Note that the connector with the blue band can
only connect into a Catalyst 3750-X switch while the connector with the yellow band can connect to a Catalyst
3750-X or an XPS.