Gestetner B147, Service Manual

Page: 870 / 1081

NCU PARAMETERS
B603 76 SM
Address Function Unit Remarks
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
680534 International dial tone frequency
upper limit (high byte)
680535 International dial tone frequency
upper limit (low byte)
Hz (BCD) If both addresses contain
FF(H), tone detection is
disabled.
680536 International dial tone frequency
lower limit (high byte)
680537 International dial tone frequency
lower limit (low byte)
Hz (BCD) If both addresses contain
FF(H), tone detection is
disabled.
680538 International dial tone detection time
680539 International dial tone reset time
(LOW)
68053A International dial tone reset time
(HIGH)
68053B International dial tone continuous
tone time
68053C International dial tone permissible
drop time
If 680538 contains FF,
the machine pauses for
the pause time (68053D /
68053E).
Belgium: See Note 2.
68053D International dial wait interval (LOW)
68053E International dial wait interval (HIGH)
20 ms