Ricoh Aficio 270 - Page 668

NCU PARAMETERS
SM 4-69 A265/A267
Service
Tables
A895
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.
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.
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.
68040D PSTN wait interval (LOW)
68040E PSTN wait interval (HIGH)
20 ms
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.