Service manual
NCU Parameters
D127/D128 5-74 SM Appendix
Address Function Unit Remarks
680539
International dial tone reset time
(LOW)
the pause time (68053D
/ 68053E).
Belgium: See Note 2.
68053A
International dial tone reset time
(HIGH)
68053B
International dial tone continuous
tone time
68053C
International dial tone permissible
drop time
68053D
International dial wait interval
(LOW)
-
68053E
International dial wait interval
(HIGH)
68053F
Country dial tone upper frequency
limit (HIGH)
Hz (BCD)
If both addresses
contain FF(H), tone
detection is disabled.
680540
Country dial tone upper frequency
limit (LOW)
680541
Country dial tone lower frequency
limit (HIGH)
If both addresses
contain FF(H), tone
detection is disabled.
680542
Country dial tone lower frequency
limit (LOW)
680543 Country dial tone detection time
20 ms
If 680543 contains FF,
the machine pauses for
the pause time (680548 /
680549).
680544
Country dial tone reset time
(LOW)
680545
Country dial tone reset time
(HIGH)
680546
Country dial tone continuous tone
time
- -
680547
Country dial tone permissible drop
time
20 ms -