Cisco 891 F Manual

 
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Memory
The Cisco 860 series, 880 series, and 890 series routers contain flash memory and main memory.
Flash Memory
The Cisco 860 series, 880 series, and 890 series ISRs use non-upgradable flash memory storage. The 
onboard flash memory contains the Cisco
 IOS software image, the boot flash contains the ROMMON 
boot code,...

 
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The default flash memory for the Cisco 860 series and 880 series routers is 128 MB. The default flash 
memory for the Cisco
 880 series voice routers and Cisco 890 series routers is 256 MB.
NoteFlash memory is not upgradable. An external USB flash memory module may be used if additional flash 
memory is needed.
Main Memory...

 
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3G Cellular Data WAN Connectivity
The 3G (Evolution Data Only [EVDO], Universal Mobile Telecommunications Systems [UMTS]) 
cellular interface is intended for use as a backup data link, but it can also be used as a primary WAN data 
link. The 3G technology is third-generation wide-area cellular technology that is used in...

 
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Supported Cisco Radio Antennas 
The Cisco 890 series ISRs come with three removable dipole antennas that can be replaced using the 
Cisco approved antenna extenders listed in 
Ta b l e 1-3. 
Feature Summary
Ta b l e 1-4 summarizes the hardware features available in the Cisco 860 series, Cisco 880 series, and 
Cisco 890...

 
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FE WAN portProvides connection to 10/100BASE-T. Can be connected to 
other network devices, such as a cable modem, an xDSL6 
modem, or router. The router is capable of bridging and 
multiprotocol routing between the LAN and WAN ports.
861 models881 modelsAll models
GE7 WA N  p o r t10/100/1000 GE WAN Port.——All models...

 
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FXS16/DID17 
port
An FXS interface connects directly to a standard telephone, 
fax machine, or similar device. This interface supplies 
ringing voltage and dial tone to the station.—886, 887V, 
888, SRST 
models—
BRI voice portThe ISDN BRI S/T voice interface provides a client-side 
(TE) ISDN S/T physical interface for...

CH A P T E R
 
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2
Installing the Router
This chapter describes the equipment and the procedures for successfully installing the Cisco 860 series, 
880 series, and 890 series Integrated Services Routers (ISRs), and contains the following sections:
 Equipment, Tools, and Connections, page 2-1
 Installing the Router, page 2-3
NoteFor compliance and safety information, see the...

 
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  Equipment, Tools, and Connections
Items Shipped with your Router
Unpack the box and verify that all items listed on the invoice were shipped with the router.
Ta b l e 2-1 lists the items and their quantities that are shipped with each router model.
Additional Items
The following items are not shipped with the router but are required for...

 
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  Installing the Router
Ethernet Devices
Identify the Ethernet devices that you will connect to the router: hub, servers, and workstations or PCs. 
Ensure that each device has a network interface card (NIC) for connecting to Ethernet ports.
 If you plan to configure the software using Cisco IOS commands through the console port, provide...

 
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  Installing the Router
CautionDo not place anything on top of the router that weighs more than 10 pounds (4.5 kilograms), and do not 
stack routers on a desktop. Excessive weight on top of the router could damage the chassis.
CautionDo not install the router or power supplies next to a heat source of any kind, including heating vents....