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by Cisco
Product Line: Cisco C3945-CME-SRST/K9
Product Type: 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 C3945-CME-SRST/K9 offers advanced networking capabilities with Cisco Unified CCME Sessions supporting up to 350 and Cisco Unified SRST Sessions up to 1200. It is equipped with 3 10/100/1000 WAN/LAN ports, 2 SFP ports, and provides expansion options through its 4 Service Module slots, 4 EHWIC slots, and 4 DSP PVDM slots. The router is designed for reliability and scalability, with a 1 GB DRAM, 256 MB Compact Flash Memory, and multiple power supply options including AC, PoE, and DC, ensuring optimal performance and adaptability for various networking environments.

Key Feature for the C3945-CME-SRST/K9

  • What are the total onboard WAN/LAN 10/100/1000 ports available?
    There are 3 total onboard WAN/LAN 10/100/1000 ports.
  • How many Cisco Unified SRST Sessions does the device support?
    The device supports 1200 Cisco Unified SRST Sessions.
  • Can you detail the power supply options for this device?
    The device offers AC, PoE, and DC power supply options.
  • What are the dimensions of the device?
    The device measures 5.25 x 17.25 x 18.75 inches (H x W x D).
  • How many RJ-45 ports are available on this device?
    There are 3 RJ-45 ports available.
  • What is the rack height and the mount size for this device?
    The rack height is 3 RU, and it is designed for a 19 in. rack mount.
  • What type and how many SFP ports does the device have?
    The device has 2 SFP ports.
  • How much DRAM is installed in the device?
    The device comes with 1 GB of DRAM.
  • What is the airflow direction for this device?
    Airflow direction can be from front to back or back to front, with the NEBS Fan Assembly.
  • What is the operating temperature range for this device?
    The operating temperature range is 0 °C to 40 °C.

Product Review

The Cisco C3945-CME-SRST/K9 offers a comprehensive set of features suitable for medium to large-sized enterprises, supporting up to 350 Cisco Unified CCME sessions and 1200 SRST sessions, ensuring scalability and reliability for voice communications. However, its 1 GB DRAM and 256 MB Compact Flash memory may limit performance under high-demand scenarios, potentially necessitating future upgrades. Additionally, the router's versatility is highlighted by its multiple connectivity options, including three 10/100/1000 Ethernet ports, two SFP ports, and extensive service module slots, though its considerable size and weight require ample rack space and careful planning for physical installation.


The Cisco C3945-CME-SRST/K9 is a versatile and powerful router designed for medium to large-sized businesses and enterprise branches. This product is engineered to deliver secure data, voice, video, and mobility services. At the heart of its capabilities, it supports up to 350 Cisco Unified CCME sessions and up to 1200 Cisco Unified SRST sessions, making it an ideal choice for companies looking for scalable and reliable communication solutions. The hardware specifications of the Cisco C3945-CME-SRST/K9 include three onboard WAN/LAN 10/100/1000 ports and an equal number of RJ-45 ports for comprehensive connectivity options. Additionally, it provides two SFP ports for fiber optic connections, enhancing the network's flexibility and speed. The device is equipped with four service module slots, four Enhanced High-Speed WAN Interface Card (EHWIC) slots, and four DSP PVDM slots, offering ample capacity for network expansion and voice/data integration. Memory and storage are crucial for performance and reliability. This model comes with 1 GB of DRAM and 256 MB of compact flash memory, facilitating efficient operation and storage of the operating system and configurations. For external connectivity and storage, it features two USB 2.0 slots (Type A) and one USB console port (Type B), along with a serial console port and a serial auxiliary port, providing a variety of options for management and file transfers. Power supply options are versatile, including AC, Power over Ethernet (PoE), and DC, with an AC input voltage range of 100 to 240 VAC autoranging. The device's typical power consumption is 105 W, indicative of its efficiency. - Size dimensions are 5.25 x 17.25 x 18.75 inches, fitting in a 3 Rack Unit (RU) space with a standard 19-inch rack mount. - The weight is substantial at 60 lbs, highlighting its robust build quality. - Airflow is designed to be adaptable, supporting both front to back and back to front directions, which can be especially useful in various deployment scenarios to maintain optimal operating temperatures ranging from 0 °C to 40 °C. Key features in bullet points: -
  • Supports up to 350 Cisco Unified CCME sessions and 1200 Cisco Unified SRST sessions.
  • Equipped with three 10/100/1000 Ethernet ports, two SFP ports, four service module slots, four EHWIC slots, and four DSP PVDM slots.
  • Flexible power supply options (AC, PoE, DC) and designed for efficient power usage with a typical consumption of 105 W.
In summary, the Cisco C3945-CME-SRST/K9 integrates comprehensive features and flexible hardware options to support the demanding requirements of modern networks. Its capabilities in handling voice and data services securely and reliably, along with its scalability, make it an excellent investment for organizations aiming to bolster their networking infrastructure.


Part Number and ManufacturerCisco C3945-CME-SRST/K9
Supported CCME Sessions350
Supported SRST Sessions1200
Total Built-in WAN and LAN Gigabit Ethernet Ports3
Number of RJ-45 Interfaces3
Quantity of SFP Interfaces2
Service Module Slots Available4
EHWIC Slots Quantity4
PVDM DSP Slots Count4
System Memory (DRAM)1 GB
Compact Flash Storage256 MB
USB 2.0 Type-A Ports2
USB Type-B Console Interface1
Serial Console Interface1
Serial Auxiliary Interface1
Options for Power SupplyAC, PoE, DC
AC Power Input Range100 to 240 VAC Autoranging
AC Input Current Range7.1 to 3 A
Standard Power Consumption105 W
Dimensions (H x W x D)5.25 x 17.25 x 18.75 inches
Standard Rack Unit Size3 RU
Compatible Rack Width19 inches
Unit Weight60 lbs
Cooling Airflow DirectionFront to Back, Back to Front (with NEBS Fan Assembly)
Operational Temperature Limits0 °C to 40 °C

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