Ricoh B039 - Page 463

NCU PARAMETERS
B404 5-46 SM
Address Function Unit Remarks
680404 PSTN dial tone frequency upper limit
(high byte)
680405 PSTN dial tone frequency upper limit
(low byte)
Hz (BCD) If both addresses contain
FF(H), tone detection is
disabled.
See Note 9
680406
PSTN dial tone frequency lower limit
(high byte)
680407 PSTN dial tone frequency lower limit
(low byte)
Hz (BCD)
If both addresses contain
FF(H), tone detection is
disabled.
See Note 9
680408 PSTN dial tone detection time
680409 PSTN dial tone reset time (LOW)
68040A PSTN dial tone reset time (HIGH)
68040B PSTN dial tone continuous tone time
68040C PSTN dial tone permissible drop time
If 680408 contains FF(H),
the machine pauses for
the pause time (address
68040D / 68040E).
Italy: See Note 2, 9
68040D PSTN wait interval (LOW)
68040E PSTN wait interval (HIGH)
20 ms
See Note 9
68040F PSTN ring-back tone detection time 20 ms Detection is disabled if
this contains FF.
680410
PSTN ring-back tone off detection
time
20 ms
680411
PSTN detection time for silent period
after ring-back tone detected (LOW)
20 ms
680412 PSTN detection time for silent period
after ring-back tone detected (HIGH)
20 ms
680413 PSTN busy tone frequency upper
limit (high byte)
680414 PSTN busy tone frequency upper
limit (low byte)
Hz (BCD) If both addresses contain
FF(H), tone detection is
disabled.
680415 PSTN busy tone frequency lower
limit (high byte)
680416
PSTN busy tone frequency lower
limit (low byte)
Hz (BCD) If both addresses contain
FF(H), tone detection is
disabled.
680417 PABX dial tone frequency upper limit
(high byte)
680418 PABX dial tone frequency upper limit
(low byte)
Hz (BCD) If both addresses contain
FF(H), tone detection is
disabled.
680419 PABX dial tone frequency lower limit
(high byte)
68041A PABX dial tone frequency lower limit
(low byte)
Hz (BCD) If both addresses contain
FF(H), tone detection is
disabled.