Cisco CISCO2851-V/K9 2851 Voice Bundle Router


Product Line:
Integrated Services Routers
Form Factor:
Rack Mountable
Rack Units:
2 U
SP Services
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Used Cisco CISCO2851-V/K9 2851 Voice Bundle Router

The Cisco 2851 Integrated Services Router is part of the Cisco 2800 Integrated Services Router Series which complements the Integrated Services Router Portfolio. These routers offer embedded encryption acceleration and DSP slots. Intrusion prevention system (IPS) is also another feature of the CISCO2851 router. These routers also come with optional integrated call processing and voice mail support.

The Cisco 2851 is an Integrated Services Router— a member of the Cisco 2800 Integrated Services Router Series designed to complement the Integrated Services Router Portfolio—is able to deliver multiple high-quality services simultaneously (at wire speed) up to multiple T1/E1/xDSL connections. The CISCO2851 offers embedded encryption acceleration as well as on the motherboard voice DSP slots. It also boasts intrusion prevention system IPS and firewall functions along with integrated call processing (optional) and voice mail support. This router is also equipped with reliable, high-density interfaces for a broad range of connectivity requirements.


Wire-speed performance for concurrent services such as security and voice, and advanced services to multiple T1/E1/xDSL WAN rates

Enhanced investment protection through increased performance and molecularity

Increased density through High-Speed WAN Interface Card Slots (four)

Enhanced Network Module Slot

Support for majority of existing AIMs, NMs, WICs, VWICs, and VICs

Two Integrated 10/100/1000 Ethernet ports

Optional Layer 2 switching support with Power over Ethernet (PoE) (as an option)



512MB DRAM / 128MB Flash Memory Installed


Unit is fully tested and the configuration has been reset to factory default.
  • Cisco 2851-V/K9 Router
  • PVDM2 Module
  • IOS SP Services
  • Cisco DB9 to RJ45 Console Cable
  • AC Cord (CAB-AC)
  • Cisco 2851 Rack Mount Kit

If you need modules or more memory contact us for help with options.

Cisco 2851 Router Specifications

Product Architecture

DRAM: Default 256 MB / Maximum 1GB

Compact Flash: Default 64MB / Maximum 256 MB

Fixed USB 1.1 Ports: 2

Onboard LAN Ports: 2 x 10/100/1000

Onboard AIM Slot (internal): 2

Interface Card Slots: 4 slots, each slot can support HWIC, WIC, VIC, or VWIC type modules

Network Module Slot: 1 slot, supports NM, NME, NME-X, NMD, and NME-XD type modules

Extension Voice Module Slot: 1

PVDM (DSP) Slots on Motherboard: 3

Integrated Hardware-Based Encryption: Yes

VPN Hardware Acceleration (on Motherboard): DES, 3DES, AES 128, AES 192, and AES 256

Optional Integrated In-Line Power (PoE): Yes, requires an AC-IP power supply

Console Port (up to 115.2 Kb/s): 1

Auxiliary Port (up to 115.2 Kb/s): 1

Minimum Cisco IOS Software Release: 12.3(8)T

Rack Mounting: Yes, 19-inch and 23-inch options

Wall Mounting: No

Power Requirements

AC Input Voltage: 100-240V AC, Autoranging

DC Input Voltage: 24 to 60 V dc, auto-ranging positive or negative

RPS: External only, a connector for RPS provided by default

Recommended RPS Unit: Cisco RPS-2300 Redundant Power System


Rack Height: 2 RU

Weight (Fully Configured): 11.4 kg (25 lb)

Dimensions: 44.5 x 438.2 x 416.6 mm (1.75 x 17.25 x 16.4 in)