NCU PARAMETERS
21 December, 2001
3-66
Address
Function
Unit
Remarks
68051B
PABX dial tone detection time
68051C
PABX dial tone reset time (LOW)
68051D
PABX dial tone reset time (HIGH)
68051E
PABX dial tone continuous tone time
68051F
PABX dial tone permissible drop time
If 68051B contains FF,
the machine pauses for
the pause time (680520 /
680521).
680520
PABX wait interval (LOW)
680521
PABX wait interval (HIGH)
20 ms
680522
PABX ringback tone detection time
20 ms
680523
PABX ringback tone off detection
time
20 ms
If both addresses contain
FF(H), tone detection is
disabled.
680524
PABX detection time for silent
period after ringback tone detected
(LOW)
20 ms
680525
PABX detection time for silent
period after ringback tone detected
(HIGH)
20 ms
If both addresses contain
FF(H), tone detection is
disabled.
680526
PABX busy tone frequency upper
limit (high byte)
680527
PABX busy tone frequency upper
limit (low byte)
Hz (BCD)
If both addresses contain
FF(H), tone detection is
disabled.
680528
PABX busy tone frequency lower
limit (high byte)
680529
PABX busy tone frequency lower
limit (low byte)
Hz (BCD)
If both addresses contain
FF(H), tone detection is
disabled.
68052A
Busy tone ON time: range 1
68052B
Busy tone OFF time: range 1
68052C
Busy tone ON time: range 2
68052D
Busy tone OFF time: range 2
68052E
Busy tone ON time: range 3
68052F
Busy tone OFF time: range 3
680530
Busy tone ON time: range 4
680531
Busy tone OFF time: range 4
680532
Busy tone continuous tone detection
time
20 ms
680533
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