Ricoh Aficio 2022, Service Manual

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NCU PARAMETERS
B576 3-62 SM
Address Function Unit Remarks
6805A8 Acceptable CNG detection frequency
lower limit (high byte)
6805A9 Acceptable CNG detection frequency
lower limit (low byte)
BCD (Hz) If both addresses contain
FF(H), tone detection is
disabled.
6805AA Not used Do not change the
setting.
6805AB CNG on time 20 ms Factory setting: 500 ms
6805AC CNG off time 20 ms Factory setting: 200 ms
6805AD Number of CNG cycles required for
detection The data is coded in the
same way as address
680533.
6805AE Not used Do not change the
settings.
6805AF Acceptable AI short protocol tone
(800Hz) detection frequency upper
limit (high byte)
6805B0 Acceptable AI short protocol tone
(800Hz) detection frequency upper
limit (low byte)
Hz (BCD) If both addresses contain
FF(H), tone detection is
disabled.
6805B1 Acceptable AI short protocol tone
(800Hz) detection frequency lower
limit (high byte)
6805B2 Acceptable AI short protocol tone
(800Hz) detection frequency lower
limit (low byte)
Hz(BCD) If both addresses contain
FF(H), tone detection is
disabled.
6805B3 Detection time for 800 Hz AI short
protocol tone 20 ms Factory setting: 360 ms
6805B4 PSTN: Tx level from the modem -N – 3 dBm SP2-103-1
6805B5 PSTN: 1100 Hz tone transmission
level - N 6805B4 - 0.5N 6805B5 –3.5 (dB)
See Note 7.
6805B6 PSTN: 2100 Hz tone transmission
level - N6805B4 - 0.5N 6805B6 –3 (dB)
See Note 7.
6805B7 PABX: Tx level from the modem - dBm
6805B8 PABX: 1100 Hz tone transmission
level - N 6805B7 - 0.5N 6805B8 (dB)
6805B9 PABX: 2100 Hz tone transmission
level - N 6805B7 - 0.5N 6805B9 (dB)
6805BA ISDN: Tx level from the modem - dBm The setting must be
between -12dBm and -
15dBm.
6805BB ISDN: 1100 Hz tone transmission
level - N 6805BA - 0.5N 6805BB (dB)
6805BC
ISDN: 2100 Hz tone transmission
level
- N 6805BA - 0.5N 6805BC (dB)
6805
BD Modem turn-on level (incoming
signal detection level) -37-0.5N
(dBm)
6805BE
to
6805C6
Not used Do not change the
settings.