Ricoh Aficio MP C3001 Service Manual page 1966

Dedicated Transmission Parameters
Switch 01
No
Tx level
Bit4 Bit3
0 0
0 0
0 0
0-4
0 0
0 0
0 1
1 1
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
D545
FUNCTION
Bit2 Bit1 Bit0
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 1 1
1 1 1 Disabled
COMMENTS
If communication with a particular
remote terminal often contains
0
errors, the signal level may be
–1
inappropriate. Adjust the Tx level for
communications with that terminal
–2
until the results are better.
–3
If the setting is "Disabled", the NCU
parameter 01 setting is used.
–4
Do not use settings other
than listed on the left.
–15
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.
162 SM