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by Cisco
Product Line: Cisco 2900 Series
Product Type: Integrated Services Router
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Original price $0.00 - Original price $0.00
Original price
$0.00 - $0.00
Current price $0.00
Title: Surplus

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Product Description

The C2951-CME-SRST/K9 incorporates 3 onboard GE slots, 3 DSP slots, and supports up to 250 Cisco Unified SRST sessions and 250 Cisco Unified CCME sessions, designed for optimal voice and data integration. It features 4 EHWIC slots, 1 ISM slot, 2 service module slots, and 2 external USB 2.0 flash memory slots, providing extensive expandability for a variety of networking applications. With a typical power consumption of less than 70 W and a maximum power of 340 W with AC power supply, alongside 512 MB DRAM and Cisco ONE software, it is engineered for efficient energy use and powerful performance in a 2 RU size.

FAQs for the C2951-CME-SRST/K9

  • How many onboard GE slots are available?
    • There are 3 onboard GE slots.
  • What is the typical power consumption?
    • Typical power consumption is less than 70 W.
  • How many DSP slots does the device have?
    • The device comes with 3 DSP slots.
  • What is the maximum power with an AC power supply?
    • Maximum power with an AC power supply is 340 W.
  • What amount of DRAM is included?
    • It includes 512 MB of DRAM.
  • Which software is pre-installed on the device?
    • Cisco ONE software is pre-installed.
  • How many Cisco Unified SRST sessions can be supported?
    • It can support up to 250 Cisco Unified SRST sessions.
  • What are the power supply options for the device?
    • Power supply options include AC, PoE, and DC.
  • How many external USB 2.0 Flash Memory slots are there?
    • There are 2 external USB 2.0 Flash Memory slots.
  • What is the rack height of the device?
    • The rack height is 2 RU.

Product Review

The CISCO C2951-CME-SRST/K9 offers a comprehensive set of features suitable for medium-sized enterprises, with three onboard GE slots, three DSP slots, and support for up to 250 Cisco Unified SRST and CCME sessions, catering to robust communication requirements. However, its limitation lies in the 512 MB of DRAM which might be insufficient for high-throughput scenarios, potentially impacting performance during peak loads. Additionally, its power consumption can reach up to 340W with an AC power supply, indicating a need for efficient power management in energy-sensitive environments.


The CISCO C2951-CME-SRST/K9 is a comprehensive networking solution designed to support a wide range of communication needs in medium to large-scale enterprise environments. This model is engineered to deliver high-performance capabilities, including voice, video, data, and mobility services. It features a suite of hardware specifications that accommodate various networking requirements, ensuring efficient and reliable operations. At the core of its specifications, the device offers three onboard Gigabit Ethernet (GE) slots, enhancing connectivity and network speed. With three Digital Signal Processor (DSP) slots, the router supports advanced voice and video services, ensuring clear and uninterrupted communications. The inclusion of four Enhanced High-Speed WAN Interface Card (EHWIC) slots allows for modular expansion, enabling the integration of additional interfaces to meet growing network demands. The CISCO C2951-CME-SRST/K9 is equipped with one Internal Services Module (ISM) slot, providing the flexibility to add services and capabilities as needed. The device operates on typical power consumption of less than 70 Watts, with a maximum power capacity of 340 Watts when equipped with an AC power supply, illustrating a balance between performance and energy efficiency. Key hardware features include: -
  • 512 MB of DRAM, facilitating smooth operation and multitasking across multiple services.
  • Support for up to 250 Cisco Unified SRST sessions and 250 Cisco Unified CCME sessions, enabling extensive voice communication support.
  • Three RJ-45 ports and one SFP port, offering versatile connectivity options for different network configurations.
Additional connectivity options are provided through two external USB 2.0 flash memory slots (Type A), a USB console port (Type B), a serial console port, and a serial auxiliary port. This range of connectivity ensures that administrators have multiple avenues for network configuration, management, and troubleshooting. For power supply, the CISCO C2951-CME-SRST/K9 supports AC, Power over Ethernet (PoE), and DC options, along with external Redundant Power Supply (RPS) support through the Cisco RPS 2300. This flexibility ensures that the device can adapt to various operational environments and power setups. The router’s physical dimensions are 3.5 x 17.25 x 18.5 inches, fitting into a 2 Rack Unit (RU) space. This compact size allows for efficient use of rack space in data centers or networking closets, while still providing the necessary ports and slots for extensive network configurations. In summary, the CISCO C2951-CME-SRST/K9 integrates a comprehensive set of features and specifications that support a wide range of networking needs. From its modular design and flexible power supply options to its advanced connectivity and support for numerous sessions, this device is engineered to meet the demands of modern enterprise networks, ensuring reliable and efficient communications across various mediums.


Part NumberCISCO C2951-CME-SRST/K9
Gigabit Ethernet Ports Onboard3
DSP Module Slots3
EHWIC Slots Quantity4
ISM Module Slots1
Average Power Consumption<70 W
Peak Power with AC Supply340 W
Memory (DRAM)512 MB
Operating SystemCisco ONE
SRST Sessions Supported250
CCME Sessions Supported250
Integrated WAN Ports3
RJ-45 Ethernet Ports3
SFP Module Slots1
Service Module Slots Available2
USB 2.0 Type A Ports for External Flash2
USB Type B Console Interface1
RS-232 Console Port1
RS-232 Auxiliary Port1
Power Supply Types SupportedAC, PoE, DC
Compatible with External RPSCisco RPS 2300
AC Voltage Range100 to 240 VAC Autoranging
AC Input Current3.4 to 1.4 A
Dimensions (H x W x D)3.5 x 17.25 x 18.5 in.
Unit Rack Size2 RU

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