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CISCO2821-DC
- Description:
- 2821 w/ DC PWR,2GE,4HWIC,3PVDM,1NME-X,2AIM,IP BASE,128F/512D
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CISCO2821-DC
2821 w/ DC PWR,2GE,4HWIC,3PVDM,1NME-X,2AIM,IP BASE...
$1,994.00
39 in Global Warehouse
$1,994.00
55% off
TRUSTED, TRIED, PROVEN
CISCO2821-DC Overview
CISCO2821-DC is engineered with a fixed architecture featuring a DC power supply and dual WAN interfaces alongside integrated 10/100 LAN connectivity. It delivers robust VPN support through IPSec, high-performance routing protocols, and built‑in firewall security, making it ideal for enterprise-grade network infrastructures without unnecessary frills.
CISCO2821-DC integrates voice and video services while providing modular expansion via dual EHWIC slots, ensuring scalability and redundancy. Optimized for throughput and QoS, it meets demanding use cases in mission‑critical environments, offering reliable remote management, compliance with FCC/CE/UL standards, and high‑availability support.
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CISCO2821-DC Specifications
| Product Type | Enterprise Router |
| VPN Support | IPSec |
| Power Source | DC Power Supply |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing |
| Broadband | N/A |
| Architecture | Fixed |
| WAN Configuration | Dual WAN |
| WAN Ports | 2 WAN |
| LAN Ports | 4 LAN Ports |
| Ethernet Technology | 10/100 |
| Wi-Fi Standard | N/A |
| Connectivity Type | Wired |
| Network Protocols | IPv4, IPv6, OSPF, EIGRP, RIP, BGP, Static Routing |
| Remote Management | Telnet, SSH, SNMP |
| Compliance Standards | FCC, CE, UL |
| Wireless Support | No |
| Speed/Capacity | Gigabit |
| Firewall Features | Yes |
| Features | VPN / IPv6 Compatible / Firewall |
| Use Case | Enterprise |
| Management | Managed |
| Form Factor | Rack-mount |
| Integrated Services | Voice / Video |
| High Availability Support | Supported |
| Safety | N/A |
| EMC | N/A |
| Telecom | N/A |
| Throughput Capacity | 0.075 Gbps |
| QoS Features | Supported |
| Built-in Security Features | Firewall |
| Expansion Slots | EHWIC |
| Modular Slots Available | 2 Slots |
| Stacking Capability | No |
| 5G Support | No |
| Memory | 512 MB |
| Flash Memory | 128 MB |
| Interface Ports | RJ-45 |
| Power | 55 W |
| Device Type | Router |
| Product Name | Cisco 2821-DC Integrated Services Router |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| 5G Support | No | No | No | No | No |
| Architecture | Modular | Fixed | Fixed with Modular Expansion | Fixed | Fixed |
| Broadband | N/A | DSL | N/A | N/A | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention / VPN | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention | Firewall |
| Compliance Standards | FCC, CE | FCC, CE | RoHS, FCC, CE | FCC / CE / RoHS | FCC, CE, UL |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 10.75 inches | N/A | N/A | N/A | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | FCC, CE | N/A | N/A | N/A | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 |
| Expansion Slots | EHWIC | 2 WIC / 2 NM | EHWIC | EHWIC | EHWIC |
| Features | VPN / IPv6 Compatible / Firewall | VPN, Integrated DSL, Modular Expansion, VOIP, Firewall | VPN / VoIP / IPv6 Compatible / Firewall | VPN / VoIP / IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 128 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Desktop | Rack-mount |
| Height | 1.73 inches | N/A | N/A | N/A | N/A |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Video | Voice, Data, Security | Voice | Voice / Video | Voice / Video |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| LAN Ports | Modular LAN | 2 LAN Ports | 4 LAN Ports | N/A | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 128 MB | 512 MB | 512 MB | 512 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4, IPv6 | IPv4, IPv6, MPLS, VPN | IPv4, IPv6, MPLS, PPP | IP / IPX / IPv6 | IPv4, IPv6, OSPF, EIGRP, RIP, BGP, Static Routing |
| Power | 80 W | 130 Watts | 85 Watt | 65 Watt | 55 W |
| Power Source | AC Power Supply / Redundant | AC Power Supply | AC Power Supply / Redundant | AC Power Supply | DC Power Supply |
| Product Name | Cisco 2851 Integrated Services Router - High Security (CISCO2851-HSEC/K9) | Cisco C2811-4SHDSL/K9 Integrated Services Router | Cisco 2821 Integrated Services Router VSEC SRST | Cisco 2801 Integrated Services Router | Cisco 2821-DC Integrated Services Router |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Integrated Services Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet, SSH, SNMP, HTTP/HTTPS | Telnet, SSH, SNMP | CLI, SNMP, Telnet, SSH | Telnet / SSH / SNMP | Telnet, SSH, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / BGP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | N/A | N/A |
| Speed/Capacity | N/A | Fast Ethernet | Gigabit | N/A | Gigabit |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 0.025 Gbps | 28 Mbps | 0.075 Gbps | 0.075 Gbps | 0.075 Gbps |
| Use Case | Enterprise | Enterprise, Business | Enterprise | Business | Enterprise |
| VPN Support | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN / DMVPN | IPSec / SSL VPN / DMVPN | IPSec |
| WAN Configuration | Dual WAN | WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 4 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | 12 lbs | N/A | N/A | N/A | N/A |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 18 inches | N/A | N/A | N/A | N/A |
| Wireless Support | No | No | No | No | No |
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Questions & Answers
Q
What is the Cisco 2821-DC router?
A
The Cisco 2821-DC is a branch office ISR with DC power, 2 Gigabit Ethernet ports, 4 HWIC slots, 3 PVDMs, NME-X expansion, dual AIMs and IP Base licensing for advanced routing and security.
Q
Which power source does the CISCO2821-DC use?
A
The CISCO2821-DC uses 48–60 V DC input power and includes an internal DC power supply for high-availability branch environments.
Q
How many Gigabit Ethernet interfaces are available?
A
This router provides 2 fixed Gigabit Ethernet ports and supports additional interfaces through its 4 HWIC slots.
Q
What expansion modules are supported?
A
It supports up to 4 HWIC modules and one NME-X module for enhanced WAN connectivity, voice, security, or storage interfaces.
Q
What are PVDMs and how many does it include?
A
Packet Voice Digital Signal Processors (PVDMs) enable voice and video services; the CISCO2821-DC includes 3 PVDM slots for media processing.
Q
What routing features does IP Base licensing provide?
A
IP Base licensing delivers advanced IPv4 routing, dynamic path selection, basic security, QoS, and MPLS VPN capabilities for enterprise networks.
Q
Can I deploy security services on this router?
A
Yes, the ISR 2821-DC supports Cisco IOS Firewall, IPSec VPN, DMVPN, and other Cisco security features under the IP Base license.
Q
How much DRAM and Flash memory are installed?
A
The router ships with 512 MB of DRAM (expandable to 2 GB) and 128 MB of flash memory for OS and feature storage.
Q
What is the performance throughput of the CISCO2821-DC?
A
Under typical mixed services, the CISCO2821-DC delivers up to 30 Mbps of aggregate throughput, with higher speeds using performance licenses.
Q
Does the router support Power over Ethernet (PoE)?
A
No, the CISCO2821-DC does not include PoE; PoE support requires a separate ISR model or external midspan solutions.
Q
What management interfaces are available?
A
It offers console, auxiliary, USB, and out-of-band Ethernet management ports plus full CLI/GUI support via Cisco IOS and Cisco Configuration Professional.
Q
Which operating temperature range is supported?
A
The CISCO2821-DC operates reliably between 0 °C and 40 °C (32 °F to 104 °F) and conforms to standard telecom environmental requirements.
Q
How do I upgrade the IOS image on this router?
A
Use the USB port, TFTP, FTP or USB flash to load a new IOS image and apply the Cisco IOS Software Activation commands to enable additional features.
Q
What warranty and support options are included?
A
Cisco provides a one-year limited hardware warranty and access to optional Cisco SMARTnet or Cisco Solution Support for 24×7 coverage.
Q
Is the CISCO2821-DC suitable for voice deployments?
A
Yes, with its PVDM slots and support for Cisco Unified Communications features, it’s ideal for small to medium branch office voice and video.