Ricoh M0A0, Service Manual

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4.Service Tables
98
Address Function Unit Remarks
6805AF Acceptable AI short protocol tone
(800Hz) detection frequency upper limit
(high byte) Hz (BCD) If both addresses contain FF (H), tone
detection is disabled.
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) Hz(BCD) If both addresses contain FF (H), tone
detection is disabled.
6805B2 Acceptable AI short protocol tone
(800Hz) detection frequency lower limit
(low byte)
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 SP2-103-002 (parameter 01).
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)
6805BD Modem turn-on level (incoming signal
detection level) -37-0.5N
(dBm)
6805BE to
6805C6 Not used - Do not change the settings.
6805C7 Bits 0 to 3 – Not used
Bit 4 = V.34 protocol dump 0: Simple, 1: Detailed (default)
Bits 5 to 7 – Not used.
6805C8 to
6805D9 Not used - Do not change the settings.
6805DA T.30 T1 timer 1 s
6805E0
bit 3 Maximum wait time for post message 0: 12 s
1: 30 s 1: Maximum wait time for post message
(EOP/EOM/MPS) can be changed to 30 s.
Change this bit to “1” if communication