Ricoh B121 Service Manual page 496

NCU PARAMETERS
Address
6805A9
Acceptable CNG detection frequency
lower limit (low byte)
6805AA Not used
6805AB CNG on time
6805AC CNG off time
6805AD
Number of CNG cycles required for
detection
6805AE Not used
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)
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)
6805B3 Detection time for 800 Hz AI short
protocol tone
6805B4 PSTN: Tx level from the modem
6805B5 PSTN: 1100 Hz tone transmission
level
6805B6 PSTN: 2100 Hz tone transmission
level
6805B7 PABX: Tx level from the modem
6805B8 PABX: 1100 Hz tone transmission
level
6805B9
PABX: 2100 Hz tone transmission
level
6805BA ISDN: Tx level from the modem
6805BB ISDN: 1100 Hz tone transmission
level
6805BC ISDN: 2100 Hz tone transmission
level
B620
Function
58
Unit
detection is disabled.
Do not change the
setting.
20 ms Factory setting: 500 ms
20 ms Factory setting: 200 ms
The data is coded in the
same way as address
680533.
Do not change the
settings.
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 Factory setting: 360 ms
-N – 3 dBm SP2-103-1
- N 6805B4 - 0.5N 6805B5 –3.5 (dB)
See Note 7.
- N 6805B4 - 0.5N 6805B6 –3 (dB)
See Note 7.
- dBm
- N 6805B7 - 0.5N 6805B8 (dB)
- N 6805B7 - 0.5N 6805B9 (dB)
- dBm The setting must be
between -12dBm and -
15dBm.
- N 6805BA - 0.5N 6805BB (dB)
- N 6805BA - 0.5N 6805BC (dB)
Remarks
B620