Multi-Tech Systems FR111 - Manual (Page 58)

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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.