Ricoh D017 Service Manual page 979

Address
68052B Busy tone OFF time: range 1
68052C Busy tone ON time: range 2
68052D Busy tone OFF time: range 2
68052E Busy tone ON time: range 3
68052F Busy tone OFF time: range 3
680530 Busy tone ON time: range 4
680531 Busy tone OFF time: range 4
Busy tone continuous tone detection
680532
time
Busy tone signal state time tolerance for all ranges, and number of cycles
required for detection (a setting of 4 cycles means that ON-OFF-ON or
OFF-ON-OFF must be detected twice).
Tolerance (±)
Bit 1
0
680533
0
1
1
Bits 2 and 3 must always be kept at 0.
Bits 7, 6, 5, 4 - number of cycles required for cadence detection
International dial tone frequency
680534
upper limit (high byte)
International dial tone frequency
680535
upper limit (low byte)
SM
Function
Bit 0
0 75%
1 50%
0 25%
1 12.5%
Hz (BCD)
161
NCU Parameters
Unit Remarks
20 ms
If both addresses contain
FF(H), tone detection is
disabled.
D361/D510