Ricoh FACSIMILE FAX77 Field Service Manual page 69

Bit Switch 2
BIT
FUNCTION
Initial Tx modem rate
Bit 1 Bit 0 Setting
0
0 0 9600 bps
0 1
1 7200 bps
1 0
4800 bps
1 1 2400 bps
ECM in tx mode
2
Modem rate
3
fallback method
used with CTC
4 Halftone with ECM 0: Impossible
Continued on the next page
DATA
0: Enabled
1: Disabled
0: Ricoh non-standard
1: CClTT standard
1: Possible
These bits set the initial starting modem rate for transmission.
The rate may fall back to a slower rate depending on line con-
ditions and the remote terminal.
The setting of this bit is changed by Function 83.
0: This can also be used for transmitting to another maker's
machine. The modem rate will fall back after CTC sooner than
the CClTT standard if the line is very bad, unless the modem
rate is already 2400 or 4800 bps.
1: The modem rate will fall back after CTC when the maximum
number of attempts to send the page have been made.
0: If halftone is selected, ECM cannot be used. Also, halftone
cannot be selected during a transmission using ECM.
1: Halftone and ECM can be used together.
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