Multitech MultiFRAD FR221, User Manual, Page: 56 / 113

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MultiFRAD User Guide
Point-To-Point
You can check communication between two MultiFRADs by cabling their DSU ports together with an
RJ-45 cable, selecting point-to-point operation (PPP/SLIP), enabling DSU Loop Back, and setting
one MultiFRAD to Internal Clocking and the other one to DDS. Data applied to the DSUs will be
reflected both ways. Further configuration for point-to-point operation can be set up by clicking the
PPP button on the main menu.
As an alternative (for diagnostic purposes), you can connect the TRUNK ports of two MultiFRADs
together with a 25-pin back-to-back cable and transmit packets between the units.