Intermec PM23c Installation Instructions Manual page 7

5 Insert the single or dual option board cable into the 80-pin
6 Insert the other end of the option cable into the 80-pin
PM23c, PM43, PM43c UART+Industrial Interface Installation Instructions
connector on the printer main board.
connector on the UART+Industrial interface board.
Note: You may need to use the dual option cable to connect
to the main board depending on which slot you use for the
UART+Industrial interface option board.
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