Ricoh D117 Service Manual page 1191

NCU Parameters
Address
6805BE
to
Not used
6805C6
Bits 0 to 3 – Not used
6805C7 Bit 4 = V.34 protocol dump
Bits 5 to 7 – Not used.
6805C8
to
Not used
6805D9
6805DA T.30 T1 timer
6805E0 bit Maximum wait time for post
3 message
Voltage setting to detect off-hook
for voltage/DP detection for an
externally connected line.
Here is a summary of the fixed voltage settings
(1: Fixed) for an externally connected line.
Bit 7
6805E3
0 0
0 0
0 0
1 0
1 1
D649
Function
0: Simple, 1: Detailed (default)
Bit 6 Bit 5 Bit 4
0 0
0 1
1 0
0 0
1 1
Unit
Do not change the
-
settings.
Do not change the
-
settings.
1 s
1: Maximum wait time
for post message
(EOP/EOM/MPS) can
0: 12 s be changed to 30 s.
1: 30 s Change this bit to "1" if
communication errors
occur frequently during
V.17 reception.
0: Auto
1: Fixed V
-
Do not change these
settings
Not used
2.75 V
5.5 V
22 V
41.25 V
134
Remarks
SM