Ricoh B064 SERIES Service Manual page 1426

NCU PARAMETERS
Address
Bits 0 to 3 – Not used
6805C7 Bit 4 = V.34 protocol dump 0: Simple, 1: Detailed (default)
Bits 5 to 7 – Not used.
6805C8
to Not used
6805D9
T.30 T1 timer
6805DA
6805E0 Maximum wait time for post
bit 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
1
1
Bit 1 sets the level of
the call signal, Bit 3
6805E4
sets the call signal
impedance
6805E5
Bit 0 sets the ring
detection method,
Bit 1 sets the ring
detection method
when fixed.
B819/B820
CÓPIA NÃO CONTROLADA
Function
Bit 6 Bit 5 Bit 4
0 0 0
0 0 1
0 1 0
0 0 0
1 1 1
Bit 1
Bit 3
Bit 0
Bit 1
CÓPIA NÃO CONTROLADA
Unit
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
0 RT=0 (Low)
1 RT=1 (High)
0：，1：
0 RZ=0 (High)
RZ=1
1
(Composite)
0 Auto If any setting is
changed, select a
1 Fixed
setting that is higher
than the default setting.
0 Use RDTP
1 Use RDTN
116
Remarks
SM