Ricoh B039 Service Manual page 464

Address
68041B PABX dial tone detection time
68041C PABX dial tone reset time (LOW)
68041D PABX dial tone reset time (HIGH)
68041E PABX dial tone continuous tone time
68041F PABX dial tone permissible drop time
680420 PABX wait interval (LOW)
680421 PABX wait interval (HIGH)
680422 PABX ringback tone detection time
PABX ringback tone off detection
680423
time
680424 PABX detection time for silent
period after ringback tone detected
(LOW)
680425 PABX detection time for silent
period after ringback tone detected
(HIGH)
680426 PABX busy tone frequency upper
limit (high byte)
680427 PABX busy tone frequency upper
limit (low byte)
680428 PABX busy tone frequency lower
limit (high byte)
680429 PABX busy tone frequency lower
limit (low byte)
68042A Busy tone ON time: range 1
68042B Busy tone OFF time: range 1
68042C Busy tone ON time: range 2
68042D Busy tone OFF time: range 2
68042E Busy tone ON time: range 3
68042F Busy tone OFF time: range 3
680430 Busy tone ON time: range 4
680431 Busy tone OFF time: range 4
680432 Busy tone continuous tone detection
time
680433 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
0
1
1
Bits 7, 6, 5, 4 - number of cycles required for cadence detection
SM
Function
0
0 75% Bits 2 and 3 must always
1 50% be kept at 0.
0 25%
1 12.5%
5-47
NCU PARAMETERS
Unit Remarks
20 ms If 68041B contains FF,
the machine pauses for
the pause time (680420 /
680421).
20 ms If both addresses contain
FF(H), tone detection is
20 ms
disabled.
20 ms If both addresses contain
FF(H), tone detection is
disabled.
20 ms
Hz (BCD) If both addresses contain
FF(H), tone detection is
disabled.
Hz (BCD) If both addresses contain
FF(H), tone detection is
disabled.
20 ms
B404