Ricoh D127 Field Service Manual page 469

Cable equalizer
Bit 7: 0, Bit 6: 0, Bit 5: 0 = None
Bit 7: 0, Bit 6: 0, Bit 5: 1 = Low
5-7
Bit 7: 0, Bit 6: 1, Bit 5: 0 = Medium
Bit 7: 0, Bit 6: 1, Bit 5: 1 = High
Bit 7: 1, Bit 6: 1, Bit 5: 1 = Disabled
Switch 02
No FUNCTION
Dedicated Transmission Parameters
Use a higher setting if there is signal
loss at higher frequencies because of
the length of wire between the modem
and the telephone exchange when
calling the number stored in this
Quick/Speed Dial.
Also, try using the cable equalizer if
one or more of the following
symptoms occurs.
Communication error with error codes
such as 0-20, 0-23, etc.
Modem rate fallback occurs
frequently.
• Do not use settings other than
listed on the left.
If the setting is "Disabled", the bit
switch setting is used.
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