Cisco 3925/K9 Integrated Services Router – Modular Enterprise Routing

Usage Area

The Cisco 3925/K9 is a modular enterprise-class router designed for medium to large branch offices and regional headquarters. It is deployed to provide secure WAN aggregation, advanced IP routing, and integrated voice/video services over dedicated or MPLS links. The platform supports concurrent data, security, and unified communications workloads, making it suitable for multiservice network environments. It is commonly used in distributed enterprise networks requiring high-performance routing and service module expansion.

Construction Features

• Chassis integrates a Service Performance Engine (SPE100) for modular upgradeability and service processing.
• Includes 3 onboard Gigabit Ethernet ports (3GE) for high-speed wired connectivity.
• Provides 4 Enhanced High-Speed WAN Interface Card slots (4EHWIC) for flexible WAN/LAN interface expansion.
• Supports 4 Digital Signal Processor slots (4DSP) for voice and video processing modules.
• Equipped with 2 Service Module slots (2SM) for additional hardware acceleration or application services.
• Ships with 256 MB CompactFlash (256MBCF) and 1 GB DRAM (1GBDRAM) as standard memory configuration.

Technical Parameters

• Model: CISCO3925/K9
• Product Series: Cisco ISR 3900
• Onboard Interfaces: 3 x Gigabit Ethernet (10/100/1000)
• Expansion Slots: 4 x EHWIC, 4 x DSP, 2 x SM
• Memory: 1 GB DRAM (default)
• Storage: 256 MB CompactFlash (default)
• Service Performance Engine: SPE100

Standards & Certification

The Cisco 3925/K9 complies with industry standards for enterprise networking equipment, including relevant EMC and safety directives applicable in the EU market. The device is designed to meet CE marking requirements and adheres to EN standards for electromagnetic compatibility and low-voltage safety. Certification ensures reliable operation in business-critical network infrastructures across Poland and the European Union.