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Cisco Integrated Services Router Hardware Installation Guide
OL-27407-01
Chapter1 Product Overview
Cisco 860, 880, 890 Series
Cisco 880 Series Voice and Data Routers
The Cisco 880 series voice and data routers provide both voice and data ports. The voice ports managed
voice services that interface with Foreign Exchange Station (FXS), Foreign Exchange Office (FXO), or
BRI connections.

Cisco 881 SRST and Cisco 888 SRST

Figure 1-22, Figure1-23, and Figure 1-24 show the features available on the Cisco 881 SRST and
Cisco 888 SRST routers. The features available vary, depending on the router model. Some features may
not be available on your router.
Depending on the router model, the primary WAN port can be either G.SHDSL or 10/100 FE. See the
Cisco 880 Series Integrated Services Routers data sheet for the WAN interface and voice ports that are
supported on your router.
1ISDN port—not available on 3G models 6PoE power connector for optional PoE
module1
2Primary WAN port2—G.SHDSL,
VDSLoPOTS, ADSLoPOTS, ADSLoISDN,
or 10/100 FE
7Reset button
3Antenna—captive omnidirectional dipole
WLAN antenna (wireless models only) 8Power connector
44-port 10/100 Ethernet switch 9Earth ground connection
5Serial port—console or auxiliary 10 Kensington security slot
1. The Cisco 880 series ISRs can include an optional PoE module that provides power to 802.3af-compliant devices connected
to ethernet ports 0 and 1. If this feature was not configured with the factory order, you must order and install it to enable the
PoE function.
2. Depending on the router model, the primary WAN port can be G.SHDSL, VDSLoPOTS, or 10/100 FE. The VDSLoPOTS
port is in the same location as the G.SHDSL port. The 10/100 FE WAN port is located at the bottom left corner. See
Figure1-12 for the location of the 10/100 FE WAN port.