Ricoh LD013, Service Manual

Page: 469 / 513

NCU PARAMETERS
B404 5-52 SM
Address Function Unit Remarks
680483
to
6804A0
Not used Do not change the
settings.
6804A1 Acceptable CED detection frequency
upper limit (high byte)
6804A2 Acceptable CED detection frequency
upper limit (low byte)
BCD (Hz) If both addresses contain
FF(H), tone detection is
disabled.
6804A3 Acceptable CED detection frequency
lower limit (high byte)
6804A4 Acceptable CED detection frequency
lower limit (low byte)
BCD (Hz) If both addresses contain
FF(H), tone detection is
disabled.
6804A5 CED detection time 20 ms
±
20 ms
Factory setting: 200 ms
6804A6 Acceptable CNG detection frequency
upper limit (high byte)
6804A7 Acceptable CNG detection frequency
upper limit (low byte)
BCD (Hz) If both addresses contain
FF(H), tone detection is
disabled.
6804A8 Acceptable CNG detection frequency
lower limit (high byte)
6804A9 Acceptable CNG detection frequency
lower limit (low byte)
BCD (Hz) If both addresses contain
FF(H), tone detection is
disabled.
6804AA Not used Do not change the
setting.
6804AB CNG on time 20 ms Factory setting: 500 ms
6804AC CNG off time 20 ms Factory setting: 200 ms
6804AD Number of CNG cycles required for
detection The data is coded in the
same way as address
680433.
6804AE Not used Do not change the
settings.
6804AF Acceptable AI short protocol tone
(800Hz) detection frequency upper
limit (high byte)
6804B0 Acceptable AI short protocol tone
(800Hz) detection frequency upper
limit (low byte)
Hz (BCD) If both addresses contain
FF(H), tone detection is
disabled.
6804B1
Acceptable AI short protocol tone
(800Hz) detection frequency lower
limit (high byte)
6804B2 Acceptable AI short protocol tone
(800Hz) detection frequency lower
limit (low byte)
Hz(BCD)
If both addresses contain
FF(H), tone detection is
disabled.
6804B3
Detection time for 800 Hz AI short
protocol tone
20 ms Factory setting: 360 ms
6804B4 PSTN: Tx level from the modem - dBm Function 08-0 (parameter
01).
See Note 9.
6804B5 PSTN: 1100 Hz tone transmission
level - N
6804B4
- 0.5N
6804B5
(dB)
See Note 7.
6804B6 PSTN: 2100 Hz tone transmission
level - N 6804B4 - 0.5N 6804B6 (dB)
See Note 7.