Gestetner A193 Service Manual page 665

Address
4804AF Acceptable AI short protocol tone
(800Hz) detection frequency upper
limit (high byte)
4804B0 Acceptable AI short protocol tone
(800Hz) detection frequency upper
limit (low byte)
4804B1 Acceptable AI short protocol tone
(800Hz) detection frequency lower
limit (high byte)
4804B2 Acceptable AI short protocol tone
(800Hz) detection frequency lower
limit (low byte)
4804B3 Detection time for 800 Hz AI short
protocol tone
4804B4 PSTN: Tx level from the modem
4804B5 PSTN: 1100 Hz tone transmission
level
4804B6 PSTN: 2100 Hz tone transmission
level
4804B7 PABX: Tx level from the modem
4804B8 PABX: 1100 Hz tone transmission
level
4804B9 PABX: 2100 Hz tone transmission
level
4804BA ISDN: Tx level from the modem
4804BB ISDN: 1100 Hz tone transmission
level
4804BC ISDN: 2100 Hz tone transmission
level
4804BD Modem turn-on level (incoming
signal detection level)
Not used
4804BE
to
4804D9
4804DA T.30 T1 timer
(A639)
Function
Hz (BCD)
Hz(BCD)
20 ms
- dBm
- N
- N
- dBm
- N
- N
- dBm
- N
- N
-37-0.5N
(dBm)
1 s
4-61
NCU PARAMETERS
Unit Remarks
If both addresses contain
FF(F), tone detection is
disabled.
If both addresses contain
FF(F), tone detection is
disabled.
If both addresses contain
FF(F), tone detection is
disabled.
If both addresses contain
FF(F), tone detection is
disabled.
Factory setting: 360 ms
Function 06-2 (parameter 01).
- 0.5N (dB)
4804B4 4804B5
- 0.5N (dB)
4804B4 4804B6
- 0.5N (dB)
4804B7 4804B8
- 0.5N (dB)
4804B7 4804B9
The setting must be between
-12dBm and -15dBm.
- 0.5N (dB)
4804BA 4804BB
- 0.5N (dB)
4804BA 4804BC
N must be between 0 (00(H))
to 31 (1F(H)).
Modem turn-off level is
automatically set at -3dBm
from the turn-on level.
Do not change the settings.
SM