Ricoh D065 Service Manual page 1155

NCU Parameters
Address
Bits 0 and 1 - Handset off-hook detection time
Bit 1
0
0
680582
Bits 2 and 3 - Handset on-hook detection time
Bit 3
0
0
Bits 4 to 7 - Not used
680583
to Not used
6805A0
Acceptable CED detection
6805A1
frequency upper limit (high byte)
Acceptable CED detection
6805A2
frequency upper limit (low byte)
Acceptable CED detection
6805A3
frequency lower limit (high byte)
Acceptable CED detection
6805A4
frequency lower limit (low byte)
6805A5 CED detection time
6805A6 Acceptable CNG detection
D418
Function
Bit 0
0
1
Other
Bit 2
0
1
Other
142
Unit
Setting
200 ms
800 ms
Not used
Setting
200 ms
800 ms
Not used
Do not change the
settings.
If both addresses contain
BCD (Hz) FF(H), tone detection is
disabled.
If both addresses contain
BCD (Hz) FF(H), tone detection is
disabled.
20 ms
Factory setting: 200 ms
± 20 ms
BCD (Hz) If both addresses contain
Remarks
SM