Communications: Get Up To Eight T1 Lines Via Scalable Access Router

Sept. 20, 2004

The first member to emerge from the Netvanta 4000 series of access routers is the NetVanta 4305. This 1U chassis can hold one or two of the company's network interface modules (NIMs) and one of its "Wide" modules. Depending on the modules selected, the 4305 delivers a maximum bandwidth capacity of eight T1 lines. The system also features two 10/100BaseT Ethernet ports for local-area-network segmentation or DMZ applications. Users can add virtual-private-network capability, allowing the 4305 to provide up to 1000 IPsec tunnels using DES, 3DES, or AES encryption. Such capability comes from adding the Enhanced Feature Pack ($995) to the latest release of the Adtran OS (v.7.1). The operating system contains multilink point-to-point protocol (PPP), a NAT-compatible SIP application-layer gateway for voice-over-Internet-protocol applications, and Internet-protocol multicast capability. Three new plug-in modules include a dual T1 NIM, an octal T1 wide module, and a high-speed serial interface module (HSSI). In single-unit lots, the NetVanta 4305 lists for $2495, the Octal T1 module for $1495, the dual T1 NIM for $645, and the HSSI module for $1295. NetVanta customers can upgrade to OS v7.1 for free.

Adtran Inc.www.adtran.com

About the Author

Roger Allan

Roger Allan is an electronics journalism veteran, and served as Electronic Design's Executive Editor for 15 of those years. He has covered just about every technology beat from semiconductors, components, packaging and power devices, to communications, test and measurement, automotive electronics, robotics, medical electronics, military electronics, robotics, and industrial electronics. His specialties include MEMS and nanoelectronics technologies. He is a contributor to the McGraw Hill Annual Encyclopedia of Science and Technology. He is also a Life Senior Member of the IEEE and holds a BSEE from New York University's School of Engineering and Science. Roger has worked for major electronics magazines besides Electronic Design, including the IEEE Spectrum, Electronics, EDN, Electronic Products, and the British New Scientist. He also has working experience in the electronics industry as a design engineer in filters, power supplies and control systems.

After his retirement from Electronic Design Magazine, He has been extensively contributing articles for Penton’s Electronic Design, Power Electronics Technology, Energy Efficiency and Technology (EE&T) and Microwaves RF Magazine, covering all of the aforementioned electronics segments as well as energy efficiency, harvesting and related technologies. He has also contributed articles to other electronics technology magazines worldwide.

He is a “jack of all trades and a master in leading-edge technologies” like MEMS, nanolectronics, autonomous vehicles, artificial intelligence, military electronics, biometrics, implantable medical devices, and energy harvesting and related technologies.