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Cisco 860 Series, Cisco 880 Series, and Cisco 890 Series Integrated Services Routers Hardware Installation Guide
OL-16215-11
Chapter 1 Product Overview
Cisco 890 Series ISRs
Figure 1-21 shows the back panel details of the C881WD-A-K9 and C881WD-E-K9 ISRs.
Figure 1-21 Back Panel of the C881WD-A-K9 and C881WD-E-K9 ISRs

Cisco 890 Series ISRs

Cisco 891, Cisco 892, and Cisco 892F

The Cisco 891, Cisco 892, and Cisco 892F ISRs have the following features:
Integrated 8-port 10/100 Ethernet switch for connecting to the LAN
10/100 FE and 10/100/1000 Gigabit Ethernet (GE) port for connecting to the WAN
Separate console and auxiliary ports
Optional embedded Wi-Fi CERTIFIED™ dual radio 802.11a/b/g/n-compliant wireless AP
Optional 4-port PoE
Note The Cisco 890 series ISRs can include an optional PoE module that provides power to
802.3af-compliant devices connected to ethernet ports 0 through 3. If this feature was not
configured with the factory order, you must order and install it to enable the PoE function.
284987
Cisco 881WD
AUX
CONSOLE
FE LAN
POE OPTION
REQUIRES 5A
POWER
ADAPTOR
3210
RESET
12VDC 5A
0
O
FE WAN
4

9

21 3 4 5 6 7 8

1Primary WAN port—10/100 FE 6Reset button
2USB port 7Power connector
34-port 10/100 Ethernet switch 8Kensington security slot
4Serial port—console or auxiliary 9Power switch
5Note No separate PoE power supply is
required for routers with embedded
WLAN antennas. For information on
system power supply requirements
when PoE is enabled, see the “Power
over Ethernet Module” section on
page 1-43.