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by Cisco
Product Line: Cisco Series
Product Type: Router
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Product Description

The CISCO3945E-SEC/K9 is a Cisco 3945E Security Bundle equipped with a Services Performance Engine (SPE) 250, designed for optimal security and performance in a 3U rack unit size. It features 4 integrated 10/100/1000 Ethernet ports, 2 SFP ports, 4 service module slots, 3 Enhanced High-Speed WAN Interface Card slots, and 3 onboard digital signal processor (DSP) slots, facilitating extensive connectivity and expansion capabilities. Supporting a variety of protocols including IPSec, PPPoE, L2TPv3, and routing protocols like OSPF, IS-IS, BGP, it ensures versatile and secure network operations, catering to demanding enterprise environments.

FAQs for the CISCO3945E-SEC/K9

  • What is the part number for the Cisco security bundle that includes a SEC license PAK?
    The part number is Cisco 3945E.
  • How many rack units does the Cisco 3945E require for installation?
    It requires 3U.
  • Can you detail the connectivity options available on the Cisco 3945E?
    The Cisco 3945E offers 4 integrated 10/100/1000 Ethernet ports, 2 SFP ports, and various interfaces including WAN, USB, and serial ports.
  • What is the capacity for Cisco Unified Communications Manager Express sessions on this device?
    The capacity is up to 450 sessions.
  • What types of protocols does the Cisco 3945E support for routing and network transport?
    It supports OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, static IPv4 and IPv6 routing, IPSec, PPPoE, and L2TPv3.
  • What are the expansion options available for the Cisco 3945E?
    The device has 4 service module slots, 3 EHWIC slots, 3 DSP slots, and 2 CompactFlash Card slots.
  • What remote management protocols are supported by the Cisco 3945E?
    It supports SNMP and RMON.
  • What are the dimensions and weight of the Cisco 3945E?
    The dimensions are 13.3 x 43.8 x 47.6 cm, and it weighs 39 lbs.
  • How does the Cisco 3945E ensure secure data transactions?
    It employs SSL encryption for secure data transactions.
  • What power requirements does the Cisco 3945E have?
    It requires AC 120/230 V (50/60 Hz) with an internal power supply.

Product Review

The CISCO CISCO3945E-SEC/K9 offers a comprehensive suite of features for secure network management, including a variety of integrated Ethernet ports and SFP slots for flexible connectivity options. However, its large form factor, requiring 3U of rack space, may pose a challenge for space-constrained installations. Additionally, while it supports a wide range of network protocols and has capacity for extensive Cisco Unified Communications sessions, the initial configuration and management can be complex, necessitating a steep learning curve for network administrators unfamiliar with Cisco systems.


The Cisco CISCO3945E-SEC/K9 is a security bundle designed to provide high security and networking capabilities. It is equipped with the Services Performance Engine module, specifically the SPE 250, enhancing its performance capabilities. This device is structured to fit in a 3U space on a rack, making it suitable for a variety of installation environments. At its core, the Cisco 3945E offers a wide range of connectivity options. It features four integrated 10/100/1000 Ethernet ports and two SFP ports, ensuring flexible connectivity for various network configurations. The device is further enhanced with multiple expansion slots: four service module slots, three Enhanced High-Speed WAN Interface Card (EHWIC) slots, and three onboard digital signal processor (DSP) slots. This array of slots allows for extensive flexibility and expansion capabilities, enabling customization to meet specific network requirements. The dimensions of the Cisco 3945E are 13.3 x 43.8 x 47.6 cm, making it a compact yet powerful device suitable for rack mounting. It supports a wired connectivity technology and is compatible with several data link protocols, including Ethernet, Fast Ethernet, and Gigabit Ethernet, catering to various network speeds and requirements. The Cisco 3945E is designed to handle substantial capacities, supporting up to 450 Cisco Unified Communications Manager Express sessions and 1500 Cisco Unified SRST sessions. This capability makes it an ideal solution for managing large-scale communications systems. The router operates on multiple network and transport protocols, including IPSec, PPPoE, and L2TPv3, and supports an array of routing protocols such as OSPF, IS-IS, BGP, and EIGRP, among others. Remote management of the device is facilitated through SNMP and RMON protocols, allowing for efficient management and monitoring. It employs SSL as its encryption algorithm, ensuring secure data transmission across the network. The Cisco 3945E adheres to various compliant standards, including IEEE 802.3, IEEE 802.1Q, and IEEE 802.1ah, confirming its reliability and compatibility with current networking standards. This router comes with LED status lights indicators for link activity and power, providing immediate visual cues about its operational status. The interface options include WAN, management, serial, and USB ports, along with two SFP (mini-GBIC) slots, offering a comprehensive set of connectivity options. - Expansion Slots Total (Free): includes three EHWIC slots, three PVDM slots, two CompactFlash Card slots, and four service module slots, all designed to enhance the router’s capabilities and performance. - Power Device: features an internal power supply that requires AC 120/230 V (50/60 Hz), ensuring reliable power delivery for continuous operation. - Physical Characteristics: the device measures approximately 18.7 inches in width, 17.2 inches in depth, and 5.2 inches in height, weighing 39 lbs, making it sizable yet manageable for installation in rack environments. The Cisco CISCO3945E-SEC/K9 is engineered to meet the needs of high-demand networks, offering scalability, reliability, and a high degree of security, making it suitable for a wide range of professional networking environments.


Item Number and ManufacturerCISCO CISCO3945E-SEC/K9
Product PackageSecurity Bundle with SEC License PAK for Cisco 3945E
Engine ModuleIncluded SPE 250
Size in Rack Units3U
Port Configuration4 built-in 10/100/1000 Ethernet ports plus 2 SFP ports
Service Module Slots Available4 slots
EHWIC Slots3 slots
DSP Slots3 built-in slots
Physical Dimensions13.3 x 43.8 x 47.6 cm
Connection TypeWired
Supported Data ProtocolsEthernet, Fast Ethernet, Gigabit Ethernet
Session Capacity450 for Cisco Unified Communications Manager Express, 1500 for Cisco Unified SRST
Supported Network ProtocolsIPSec, PPPoE, L2TPv3
Supported Routing ProtocolsOSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, IPv4 and IPv6 static routing, policy-based routing
Management ProtocolsSNMP, RMON
Encryption SupportSSL
Standards ComplianceIEEE 802.3, IEEE 802.1Q, IEEE 802.1ah, IEEE 802.1ag
Indicator LEDsLink activity, power status
Interface OfferingsWAN: 4 x RJ-45 for 10/100/1000Base-T, Management: 1 x RJ-45 console, 1 x mini-USB Type B console, Serial: 1 x auxiliary RJ-45, USB: 2 x USB Type A, 2 x SFP (mini-GBIC)
Expansion Slot Availability3 x EHWIC, 3 x PVDM, 2 x CompactFlash (1 free), 4 x service module slots
Power Supply TypeInternal
Power RequirementsAC 120/230 V (50/60 Hz)
External DimensionsWidth: 18.7 in, Depth: 17.2 in, Height: 5.2 in
Unit Weight39 lbs

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