Ricoh D025 Service Manual page 1475

NCU Parameters
Address
PABX dial tone frequency upper
680518
limit (low byte)
PABX dial tone frequency lower
680519
limit (high byte)
PABX dial tone frequency lower
68051A
limit (low byte)
68051B PABX dial tone detection time
68051C PABX dial tone reset time (LOW)
68051D PABX dial tone reset time (HIGH)
PABX dial tone continuous tone
68051E
time
PABX dial tone permissible drop
68051F
time
680520 PABX wait interval (LOW)
680521 PABX wait interval (HIGH)
680522 PABX ringback tone detection time 20 ms
PABX ringback tone off detection
680523
time
PABX detection time for silent
680524 period after ringback tone
detected (LOW)
PABX detection time for silent
680525 period after ringback tone
detected (HIGH)
PABX busy tone frequency upper
680526
limit (high byte)
D393
Function
134
Unit
detection is disabled.
If both addresses
Hz (BCD) contain FF(H), tone
detection is disabled.
If 68051B contains FF,
the machine pauses for
the pause time (680520 /
680521).
20 ms
-
If both addresses
contain FF(H), tone
20 ms
detection is disabled.
20 ms
If both addresses
contain FF(H), tone
detection is disabled.
20 ms
If both addresses
Hz (BCD)
contain FF(H), tone
Remarks
SM