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Modular Router with 2 GE 2 EHWIC Slots - CISCO1921/K9
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Cisco Linksys Modular Router with 2 GE 2 EHWIC Slots - CISCO1921/K9

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Cisco C1921 Modular Router, 2 GE, 2 EHWIC slots, 512DRAM, IP Base
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Cisco 1900 Series Integrated Services Routers (ISRs) build on 25 years of Cisco innovation and product leadership. The new platforms are architected to enable the next phase of branch-office evolution; providing rich-media collaboration to the branch office while maximizing operational cost savings. The Cisco Integrated Services Routers Generation 2 (ISR G2) platforms are future-enabled with multicore CPUs; Gigabit Ethernet switching with enhanced Power over Ethernet (PoE); and new energy monitoring and control capabilities that enhance overall system performance. Additionally; a new Cisco IOS Software Universal image enables you to decouple the deployment of hardware and software; providing a stable technology foundation that can quickly adapt to evolving network requirements. Overall; the Cisco 1900 Series offers exceptional total cost of ownership (TCO) savings and network agility through the intelligent integration of market-leading security; unified communications; wireless; and application services. The Cisco 1921 builds on the best-in-class offering of the Cisco 1841 Integrated Services Routers. All Cisco 1900 Series Integrated Services Routers offer embedded hardware encryption acceleration; optional firewall; intrusion prevention; and advanced security services. In addition; the platforms support the industry's widest range of wired and wireless connectivity options such as Serial; T1/E1; xDSL; Gigabit Ethernet; and third-generation (3G) wireless (Figure 1).

Product Features:

  • The Cisco 1921 offers increased levels of services integration with data; security; wireless; and mobility services; enabling greater efficiencies and cost savings
  • A single Cisco IOS Software Universal image is installed on each ISR G2
  • The Cisco 1900 Series enables deployment in high-speed WAN environments with concurrent services enabled up to 15 Mbps
  • Designed to address customer business requirements; the Cisco 1921 with the modular architecture offers a performance range of modular interfaces and services as your network needs grow
  • Modular interfaces offer increased bandwidth; a diversity of connection options; and network resiliency
  • The Cisco 1900 Series offers intelligent power management and allows you to control power to the modules based on the time of day
  • Services integration and modularity on a single platform performing multiple functions optimizes raw-materials consumption and energy usage
  • Platform flexibility and ongoing development of both hardware and software capabilities lead to a longer product lifecycle; lowering all aspects of the TCO; including materials and energy use
  • High-efficiency power supplies are provided with each platform
  • Reuse of a broad array of existing modules supported on the original ISRs provides a lower TCO
  • A rich set of Cisco IOS Software features is carried forward from the original ISRs and delivered in the Universal image
  • This router gives you the flexibility to grow as your business needs evolve


Services and Slot Density

  • Embedded hardware-based cryptography acceleration (IPsec + SSL): Yes
  • RJ-45 onboard LAN/WAN 10/100/1000 ports: 2
  • EHWIC slots: 2
  • Doublewide EHWIC slots (use of a doublewide EHWIC slot will consume 2 EHWIC slots): 1
  • Memory (DDR2 DRAM): Default/maximum: 512 MB/512 MB
  • USB flash memory (internal): Default/maximum: 256 MB/256 MB
  • External USB flash-memory slots (Type A): 1
  • USB console port (mini-Type B) (up to 115.2 kbps): 1
  • Serial console port (up to 115.2 kbps): 1
  • Serial auxiliary port (up to 115.2 kbps: 1
  • Integrated power supply: AC and DC power-supply models
  • Power-supply options: POE (external) - on AC models only
  • Redundant-power-supply support: No

Services and Slot Density

  • AC input voltage: 100-240V
  • AC input frequency: 47-63 Hz
  • AC input current range AC power supply (Maximum) (amps): 1.5-0.6
  • AC input surge current: <50A
  • Typical power (no modules): 25W
  • Maximum power capacity with AC power supply: 60W
  • Maximum power capacity with PoE power supply (platform only): 70W
  • Maximum PoE device power capacity with PoE power supply: 80W
  • DC power input: 32-60 VDC; 4A; positive or negative; single source
  • DC input wire size: AWG 14 (2.0 mm2)
  • Safety ground-wire size: AWG 14 (2.0 mm2); minimum
  • Wire terminal (lug): Amp/Tyco No.32957
  • Overcurrent protection: 20A maximum

Physical Specifications

  • Dimensions (H x W x D): 1.75 x 13.5 x 11.5 in. (4.45 x 34.29 x 29.21 cm)
  • Rack height: 1 rack unit (1RU)
  • Rack-mount 19 in. (48.3 cm) EIA: Optional
  • Wall-mount (refer to installation guide for approved orientation): Yes
  • Weight: With AC power supply (no modules): 6.75 lb
  • Weight: With PoE power supply (no modules): 7.5 lb
  • Airflow: Back to sides

Environmental Specifications

  • Temperature: 5906 ft (1800m) maximum altitude: 32-104 degreeF (0-40 degreeC)
  • Temperature: 9843 ft (3000m) maximum altitude: 32-77 degreeF (0-25 degreeC)
  • Altitude: 10;000 ft (3;000m)
  • Humidity: 10 to 85% relative humidity (RH)
  • Acoustic: Sound pressure (typical/maximum): 32.99/58.33 dBA
  • Acoustic: Sound power (typical/maximum): 41.99/67.22 dBA

Transportation and Storage Conditions

  • Temperature: -40 to 158 degreeF (-40 to 70 degreeC)
  • Humidity: 5 to 95% RH
  • Altitude: 15;000 ft (4;570m)

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Cisco Linksys Modular Router with 2 GE 2 EHWIC Slots - CISCO1921/K9

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