This legacy product is not recommended for new installations. There is no replacement for these products.

Remote Router Porting with Patton's Ethernet-over-T1 Bridge
Patton Electronics introduces a new way of interconnecting remote branches to a Main Office LAN using the Model 2720/I Ethernet-over-T1 Bridge. Called "Remote Router Porting" (RRP), it offers network managers and integrators a simple and economical way for LAN-to-LAN deployments.


At the branch office, RRP replaces the traditional router and CSU/DSU solution with Patton's Ethernet-over-T1 Bridge, which includes integrated T1 and 10Base-T transparent bridging. This unit allows for high-speed PPP data connections across the Wide Area Network at scalable data rates of nx56/nx64kbps up to 1.544Mbps, and also connects directly to the 10Base-T branch office LAN at 10Mbps. The Model 2720/I transparently forwards Ethernet packets to a headquarters LAN based on their destination MAC address.

At headquarters, RRP builds on the bridging capabilities of a router to extend their serial or WAN ports across town or across the country. In order for the central routed network to connect to a remote branch Ethernet network, the serial or WAN interface of the router needs to be configured as a PPP IP half-bridge. In this configuration the Ethernet-over-T1 Bridge sends bridge packets (BPDUs) to the router's WAN interface. The router will then look at the layer-3 address information and will forward these packets based on its IP address. The router's port, connected through the T1 network and Model 2720/I, appears as a virtual Ethernet interface at the branch office network.

The Model 2720/I Ethernet-over-T1 Bridge supports D4/ESF framing options and AMI/B8ZS/B7ZS line coding. Data rates, framing, and coding options are programmed by DIP switches or from a VT-100 terminal with menu-driven software. A full range of system and diagnostic features make setup simple and easy.

  • Terminates T1/FT1 Circuits over a 4-Wire RJ-48C interface
  • 10Base-T Ethernet Bridge
  • PPP (Point to Point Protocol, RFC 1661) with Bridge Control Protocol (RFC 1638)
  • Nx56/nx64kbps rates up to 1.536 Mbps
  • Unstructured rates at 1.544 Mbps
  • D4 or ESF Framing Modes
  • Supports AMI or B8ZS/B7ZS Line Coding
  • Configuration via Software Control Port or Internal DIP Switches
  • Six Easy-to-Read LED Indicators Monitor Data & Diagnostics
  • Internal or network clocking
  • Made in USA
  • Made in the USA — This Patton equipment is designed by Patton engineers and built in our Gaithersburg, Maryland facility. Patton's American-made manufacturing process delivers high-quality networking solutions with reliability you can trust.