Ricoh D065 Service Manual page 1147

NCU Parameters
Address
68050B PSTN dial tone continuous tone time
68050C PSTN dial tone permissible drop time
68050D PSTN wait interval (LOW)
68050E PSTN wait interval (HIGH)
68050F PSTN ring-back tone detection time
680510 PSTN ring-back tone off detection time
PSTN detection time for silent period
680511
after ring-back tone detected (LOW)
PSTN detection time for silent period
680512
after ring-back tone detected (HIGH)
PSTN busy tone frequency upper limit
680513
(high byte)
PSTN busy tone frequency upper limit
680514
(low byte)
PSTN busy tone frequency lower limit
680515
(high byte)
PSTN busy tone frequency lower limit
680516
(low byte)
PABX dial tone frequency upper limit
680517
(high byte)
PABX dial tone frequency upper limit
680518
(low byte)
PABX dial tone frequency lower limit
680519
(high byte)
68051A PABX dial tone frequency lower limit
D418
Function
134
Unit
Italy: See Note 2.
Detection is disabled if
20 ms
this contains FF.
20 ms
20 ms
20 ms
If both addresses contain
Hz (BCD) FF(H), tone detection is
disabled.
If both addresses contain
Hz (BCD) FF(H), tone detection is
disabled.
If both addresses contain
Hz (BCD) FF(H), tone detection is
disabled.
If both addresses contain
Hz (BCD) FF(H), tone detection is
disabled.
Remarks
SM