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21 May, 1999
NCU PARAMETERS
4-45
Service
Tables
Address
Function
Unit
Remarks
81E533
Busy tone signal state time tolerance for all ranges, and number of cycles
required for detection (a setting of 4 cycles means that ON-OFF-ON or OFF-
ON-OFF must be detected twice).
Tolerance (
±
)
Bit 1
0
0 0 75%
Bits 2 and 3 must always
0 1 50%
be kept at 0.
1 0 25%
1 1 12.5%
Bits 7, 6, 5, 4 - number of cycles required for cadence detection
81E534
International dial tone frequency
upper limit (high byte)
81E535
International dial tone frequency
upper limit (low byte)
Hz
(BCD)
If both addresses contain
FF(H), tone detection is
disabled.
81E536
International dial tone frequency
lower limit (high byte)
81E537
International dial tone frequency
lower limit (low byte)
Hz
(BCD)
If both addresses contain
FF(H), tone detection is
disabled.
81E538
International dial tone detection
time
81E539
International dial tone reset time
(low)
81E53A
International dial tone reset time
(high)
81E53B
International dial tone continuous
tone time
81E53C
International dial tone permissible
drop time
81E53D
International dial wait interval (low)
81E53E
International dial wait interval (high)
20 ms
If 81E538 contains FF, the
machine pauses for the
pause time (81E53D /
81E53E).
See Note 4 (Belgium).
81E53F
Country dial tone upper frequency
limit (high)
81E540
Country dial tone upper frequency
limit (low)
If both addresses contain
FF(H), tone detection is
disabled.
81E541
Country dial tone lower frequency
limit (high)
81E542
Country dial tone lower frequency
limit (low)
Hz
(BCD)
If both addresses contain
FF(H), tone detection is
disabled.
81E543
Country dial tone detection time
20 ms
81E544
Country dial tone reset time (low)
81E545
Country dial tone reset time (high)
If 81E543 contains FF, the
machine pauses for the
pause time (81E548 /
81E549).
81E546
Country dial tone continuous tone
time
81E547
Country dial tone permissible drop
time
81E548
Country dial wait interval (low)