Ricoh B264 - Page 845

NCU PARAMETERS
SM 93 B779
Fax Option
B779
Voltage setting to detect off-hook for
voltage/DP detection for an
externally connected line.
0: Auto
1: Fixed V
Here is a summary of the fixed voltage settings (1:
Fixed) for an externally connected line.
Bit 7 Bit 6 Bit 5 Bit 4
0 0 0 0 Not used
0 0 0 1 2.75 V
0 0 1 0 5.5 V
1 0 0 0 22 V
6805E3
1 1 1 1 41.25 V
Do not change these
settings
0 RT=0 (Low) Bit 1
1 RT=1 (High
0 RZ=0 (High)
6805E4
Bit 1 sets the level of
the call signal, Bit 3
sets the call signal
impedance
Bit 3
1 RZ=1 (Composite)
0 RT=0 (Low) Bit 0
1 RT=1 (High
0 Use RDTP
Bit 0 sets the ring
detection method, Bit
1 sets the ring
detection method
when fixed.
Bit 1
1 Use RDTN
Here is a summary of the voltages for the detection of
off-hook for DP detection.
Bit 7 Bit 6 Bit 5 Bit 4
0 0 0 0 Not used
0 0 0 1 2.75 V
0 0 1 0 5.5 V
1 0 0 0 22 V
6805E5
1 1 1 1 41.25 V
If any setting is
changed, select a
setting that is higher
than the default
setting.