CRC Preset

The CRC Preset parameter allows the user to specify whether the polyno- mial used to calculate the CRC for each frame is preset to all 1s or all 0s. This option must match the synchronous device’s CRC-preset setting. The default is All 1s.

Async Mode Parameters

Following Parameters are modifiable when the device connected to the data connector on the back of the MultiFRAD 100-Series is an asynchro- nous device. To change a parameter using a drop down menu, click on the drop down arrow and a drop down menu displays the new parameters. Click on the desired parameter. To change an option parameter, click on the option box. An "x" appears in the option box if the option is active.

Baud Rate

The Baud Rate parameter needs to be set to match the speed of the async device. The baud rate ranges from 300 bps to 57.6K bps. The default port speed is 19.2k bps.

Word Length

The Word Length parameter sets the number of bits in a word. The word length range is 5 to 8 bits. The default is 8 bits.

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Multi-Tech Systems FR111 owner manual CRC Preset, Async Mode Parameters, Baud Rate, Word Length