PLATFORM OVERVIEW
Cisco 2800 Series
45
NME EVM AIM HWIC PVDM*
Fixed LAN
Ports
DRAM (MB)
Default Max
Flash (MB)
Default Max
Power
Supply
Cisco 2801 0*** 0 2 2** 2 2 FE 128 384 64 128 AC,
AC-IP
Cisco 2811 1 0 2 4 2 2 FE 256 768 64 256 AC,
AC-IP,
DC
Cisco 2821 1 NME or
NME-X
1 2 4 3 2 GE 256 1024 64 256 AC,
AC-IP,
DC
Cisco 2851 1 NME,
NMD,
NME-X, or
NME-XD
1 2 4 3 2 GE 256 1024 64 256 AC,
AC-IP,
DC
*Number of PVDM slots on the motherboard, additional DSP resources can be added using a network module
**Four interface card slots total are supported on the Cisco 2801 router; two slots support HWIC, WIC, VIC, or VWIC
modules; one slot supports WIC, VIC, or VWIC modules; one slot supports VIC or VWIC modules (in voice mode only)
***Cisco 2801 router does not support Network Modules
SERIES SPECIFICATIONS

NETWORK EXAMPLE

Cisco 2800 Series
44
WHEN TO DEPLOY
Deploy the Cisco 2800 Series when you need:
• Performance and densities for concurrent
data, security, voice, and advanced services
up to multiple T1/E1/xDSL connections
• VPN connections, or plan to migrate to them
over time
• Integrated security services as part of the
Cisco Self Defending Network, which enable
network device protection, threat defense,
secure connectivity, and endpoint protection
and control
• Integrated 10/100 switching with PoE support;
up to 44 ports with inline power
• High-availability features such as an
integrated redundant power supply (RPS)
connector for quick connections to an external
redundant power supply, Error Correction
Code (ECC) Double Data Rate (DDR) SDRAM
memory to detect and correct SDRAM errors
without user intervention, and Cisco IOS
Software warm reboot support for reduced
downtime caused by system reboots (Note:
Cisco 2801 does not support ECC DDR DRAM.
Cisco IOS warm reboot support will be offered
at a later point in time.)
• Secure integrated call processing, voice mail,
flexible telephony interfaces, redundancy for
centralized call processing, or robust DSP
support, including local conferencing and
transcoding
• Advanced management for security, routing,
quality of service (QoS), and switching
services with Cisco SDM Version 2.0
IP

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Dimensions (Height x Width x Depth)
Cisco 2801 1.72 x 17.5 x 16.5 in. (43.7 x 445 x 419 mm); 1-rack-unit (RU) height
Cisco 2811 1.75 x 17.25 x 16.4 in. (44.5 x 438.2 x 416.6 mm); 1-RU height
Cisco 2821, Cisco 2851 3.5 x 17.25 x 16.4 in. (88.9 x 438.2 x 416.6 mm) 2-RU height
Console Port 1 (up to 115.2 Kbps)
Auxiliary Port 1 (up to 115.2 Kbps)
USB Port(s)
Cisco 2801 1
Cisco 2811, Cisco 2821, Cisco 2851 2
Integrated Channel Service Unit/Data Yes, with optional T1/E1, Fractional T1/E1, 56k/64k support
Service Unit (CSU/DSU)
Voice/Data Support Yes, for voice through VIC, VWIC, NM, and EVM
Compression Software and hardware, with optional AIM support
Encryption Hardware support on motherboard; optional AIM for enhanced
performance