Cisco ISR4351-V/K9 Integrated Services Router for Enterprise Networks

Usage Area

The Cisco ISR4351-V/K9 is a modular enterprise router designed for medium-to-large branch offices and campus deployments. It provides integrated wired and wireless WAN connectivity, advanced unified communications, and secure data routing. The platform supports concurrent voice, video, and data traffic, making it suitable for multi-service networks requiring high availability. It is deployed at customer premises to enable WAN aggregation, MPLS, and encrypted VPN services.

Construction Features

• Modular chassis with two Network Interface Module (NIM) slots for flexible WAN/LAN connectivity.
• Built-in Enhanced Services Performance Engine (ESP) for hardware-accelerated encryption and forwarding.
• Includes PVDM4-64 digital signal processor module for voice and conferencing support.
• Ships with Cisco Unified Communications (UC) license, enabling voice gateway and call-control features.
• Front-panel LEDs for system, power, and interface status monitoring.
• Rack-mountable 1RU form factor with redundant power supply options.

Technical Parameters

• Model: ISR4351-V/K9
• Chassis: 1RU modular router
• NIM slots: 2
• PVDM slots: 3 (one occupied by PVDM4-64)
• Default DRAM: 4 GB (upgradable)
• Default flash: 8 GB (upgradable)
• Integrated ports: 3x GE (WAN/LAN), 2x SFP

Standards & Certification

The Cisco ISR4351-V/K9 complies with EU directives for electromagnetic compatibility (EMC) and low-voltage safety, including CE marking. It meets EN 55032 and EN 55024 standards for emissions and immunity, and EN 60950-1 for safety. The router supports industry-standard protocols (IPsec, MPLS, QoS) and is certified for operation in EU telecommunications networks.