Gestetner B003 Service Manual page 725

NCU PARAMETERS
Address
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
680520 PABX wait interval (LOW)
680521 PABX wait interval (HIGH)
680522 PABX ringback tone detection time
680523 PABX ringback tone off detection
time
680524 PABX detection time for silent
period after ringback tone detected
(LOW)
680525 PABX detection time for silent
period after ringback tone detected
(HIGH)
680526 PABX busy tone frequency upper
limit (high byte)
680527 PABX busy tone frequency upper
limit (low byte)
680528 PABX busy tone frequency lower
limit (high byte)
680529 PABX busy tone frequency lower
limit (low byte)
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
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
1
1
Bits 7, 6, 5, 4 - number of cycles required for cadence detection
B003/B004/B006/B007
Function
0
0 75% Bits 2 and 3 must always
1 50% be kept at 0.
0 25%
1 12.5%
3-68
Unit
20 ms If 68051B contains FF,
the machine pauses for
the pause time (680520 /
680521).
20 ms If both addresses contain
FF(H), tone detection is
20 ms
disabled.
20 ms If both addresses contain
FF(H), tone detection is
disabled.
20 ms
Hz (BCD) If both addresses contain
FF(H), tone detection is
disabled.
Hz (BCD) If both addresses contain
FF(H), tone detection is
disabled.
20 ms
Remarks
SM