Multi-Tech MultiFRAD 200 Series, User Manual

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MultiFRAD II User Guide
Introduction
Welcome to Multi-Tech's new MultiFRAD II™, model FR2201, a Router/ Two-Port Frame Relay
Access Device (FRAD) that encapsulates non-packetized data streams from serial and LAN devices
into frame relay frames and frames that data with header and trailer information prior to sending it to
the frame relay network. The MultiFRAD (Figure 1-1) enables non-frame relay devices to connect to
a common carrier frame relay network service or private frame relay network. This unit has a trunk
interface to a Frame Relay network, an Ethernet LAN connection for IP or IPX routing or bridging,
and two data channels that can be connected to non-frame-relay devices. On receiving a
communication over the frame relay network, the MultiFRAD strips away the frame relay control
information so the target device receives the data packaged in its original form.
Since frame relay networks use shared resources, they typically are more reliable and less
expensive per month than equivalent leased lines. Depending on the location and distances between
points, simple point-to-point networks can cost less per month than leased lines. The cost savings
are even greater when multiple leased lines are replaced with frame relay.
The trunk connection links to a synchronous Data Communications Equipment (DCE) device that
accesses the Frame Relay network. The Ethernet LAN connection handles IP or IPX routing and
Media Access Control (MAC) layer bridging for all other protocols on either a 10Base-T or AUI port
connection. The two data ports are for asynchronous or HDLC synchronous Data Terminal
Equipment (DTE) devices.
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Figure 1-1. MultiFRAD II