Multi-Tech Systems FR111 owner manual Loop Tests, Other Tests

Loop Tests

The loop tests provide a short and long loop test. The short loop test is the data port loopback test which loops back the data from the data port to the sending device (DTE). The long loop test is the trunk loopback test which again receives data from the DTE device and loops it back from the internal DSU.

The data port loopback test has two modes which depend on the device connected to the data port. If the data port device is an async device, then the Command Mode switch (DIP-Switch position 1) can be in either position in order for the data to be looped back to the sending (DTE) device. If the data port device is a sync device, the Command Mode switch must be in the up position (Data mode) in order for the device to receive the looped back data.

The trunk loopback test requires that DIP-Switch position 3 (Loopback Test Mode) be in the DOWN position in order for the internal DSU to loop back the data received from the DTE device.

Other Tests

The memory test checks the on-board memory. A warning will be displayed that "The unit will be reset now and the factory defaults will be restored.

The watch dog test will reset the unit. A "Warning: This watchdog test will reset the unit. Do you wish to continue?" A brief message will be displayed stating that the watch dog test passed.

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