The Cisco 3900 Series Integrated Services Routers are built on 25 years of Cisco innovation and product leadership. The new platforms are built to support the next phase of branch office development, providing branches with rich media collaboration and virtualization while maximizing operational cost savings. The new second-generation integrated services routers support new high-capacity digital signal processors (DSPs) for future-enhanced video capabilities, while providing improved availability with high-power service modules, multicore CPUs, Gigabit Ethernet switching with Power over Ethernet (PoE), and new energy monitoring and control capabilities that also improve overall system performance. Additionally, the new Cisco IOS® (Internetwork Operating System) software universal image and service-ready engine modules enable hardware and software deployments to be decoupled, which provides a flexible technology foundation that can quickly meet evolving network demands. Overall, through intelligent integration of market-leading security, unified communications, wireless, and application services, the Cisco 3900 Series delivers unmatched total cost of ownership savings and network flexibility.
The Cisco 3900 series integrated services routers (ISR G2) provide a modular, high‑performance platform for branch offices, supporting voice, video, security, mobility and data services. The series includes the Cisco 3925 and Cisco 3945 models, offering flexible power options, PoE/ePoE, and a range of interface modules.
The document details the architecture, supported modules, security capabilities, wireless and mobile services, application acceleration, management tools, ordering options, and warranty information, helping customers evaluate and deploy the routers in various network environments. This manual is written in Chinese.
| Ethernet WAN ports | Three 10/100/1000 Ethernet ports |
|---|---|
| HWIC slot bandwidth (MGF) | Up to 2 Gbps via MGF to other modules |
| Flash slots | Two external flash slots, up to 4 GB each |
| USB ports | Two USB 2.0 ports |
| Warranty | 90‑day limited warranty |
The routers come with a 90‑day limited warranty.
A single Cisco IOS universal image is provided, with software licenses that can be activated to enable advanced features.