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Service Guide OF1000
Chapter 2 Principles of Operation
2.2.05 Encoder
Scanned image data received by the PCNT is sent to the encoder/decoder (ENC/DEC) on the
MCNT-150 board. The image data is compressed by the ENC/DEC according to the Modified
Huffman (MH) and Modified Read (MR) encoding scheme, or MH only. The use of MH only or
both MH and MR is determined by a function setting. Data is then stored in the FIFO area in one
byte units. Fill bits are inserted if the length of one encoded line is less than the minimum scan
time of the remote unit. Data is transferred to the NCU board, then sent to the line board for
transmission over the phone line.
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Summary of Contents for OF1000
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