NCU PARAMETERS
B779 92 SM
Address Function Unit Remarks
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
SP2-103-002 (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 errors
occur frequently during
V.17 reception.