Ricoh D072 Service Manual page 619

NCU Parameters
Address
Acceptable ringing signal
680574
frequency: range 2, upper limit
Acceptable ringing signal
680575
frequency: range 2, lower limit
Number of rings until a call is
680576
detected
Minimum required length of the
680577
first ring
Minimum required length of the
680578
second and subsequent rings
Ringing signal detection reset time
680579
(LOW)
Ringing signal detection reset time
68057A
(HIGH)
68057B
to Not used
680580
Interval between dialing the last
digit and switching the Oh relay
680581 over to the external telephone
when dialing from the operation
panel in handset mode.
D067/D068/D069/D072
Function
1
20 ms
20 ms
20 ms
-
20 ms
7-80
SP2-103-005
(parameter 04).
SP2-103-006
(parameter 05).
SP2-103-007
(parameter 06).
The setting must not be
zero.
See Note 4.
SP2-103-008
(parameter 07).
SP2-103-009
(parameter 08).
SP2-103-010
(parameter 09).
SP2-103-011 (parameter
10).
Do not change the
settings.
Factory setting: 500 ms
SM Appendix