Compare Cisco Universal Access Server AS2511-RJ Remote Access Server to Cisco IAD 2421 (IAD2421-8FXS-RF) Remote Access Server

The Cisco 2500 access server series gives users the ability to connect asynchronous devices such as dumb terminals, modems, router consoles, slot machines, and ISDN TAs into a routed network. This product family contains new features that make them easier to use then ever, and they run the same Cisco IOS software that runs the backbone of the Internet on a high-performance router engine. They also give users integrated synchronous serial ports to backhaul routed traffic through T1/E1 lines.??The Cisco 2500 access server series provide a variety of models designed for small office and remote site environments. Each model is a fixed-configuration router that supports at least two interface types. Each access server comes standard with Flash EPROM technology for simplified software maintenance. For software, the Cisco 2500 access server series offer a wide choice of feature sets, so you can select the appropriate protocol set for your network environment. These feature sets range from... Less

The Cisco IAD2400 Series offers the best-in-class integration of data and toll-quality analog or digital voice services for a customer-premises (CP) solution. Designed to bridge the current and emerging multiservice needs of competitive local exchange carriers (CLECs), incumbent local exchange carriers (ILECs) and interexchange carriers (IXCs), the Cisco IAD2400 Series operates in both Class 5 switch-access and Class 5 switch-bypass architectures. Robust data and voice services in a highly interoperable system architecture allow service providers to offer rich revenue-generating services.??Driven by a powerful RISC processor and high-performance digital signal processors (DSPs), the Cisco IAD2400 Series supports voice over IP (VoIP), voice over ATM (VoATM), proven quality-of-service (QoS) tools, multiple call-control protocols (MGCP/SGCP), diverse CODECs, IP routing, and security features. The choice of high-density analog or digital voice interfaces over a wide range of broadband ... Less