Ricoh D017 - Page 990

NCU Parameters
D361/D510 172 SM
Address Function Unit Remarks
6805E5
Bit 0 sets the ring
detection method, Bit
1 sets the ring
detection method
when fixed.
Bit 0
0 RT=0 (Low)
If any setting is
changed, select a
setting that is higher
than the default setting.
1 RT=1 (High
Bit 1
0 Use RDTP
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
1 1 1 1 41.25 V