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November 29, 1999
NCU PARAMETERS
4-71
Service
Tables
Address
Function
Unit
Remarks
4809A6
Acceptable CNG detection
frequency upper limit (high byte)
4809A7
Acceptable CNG detection upper
frequency upper limit (low byte)
BCD
(Hz)
If both addresses contain
FF(H), tone detection is
disabled.
4809A8
Acceptable CNG detection
frequency lower limit (high byte)
4809A9
Acceptable CNG detection upper
frequency lower limit (low byte)
BCD
(Hz)
If both addresses contain
FF(H), tone detection is
disabled.
4809AA
Not used
Do not change these
settings.
4809AB
CNG on time
20 ms
Factory setting: 500 ms
4809AC
CNG off time
20 ms
Factory setting: 200 ms
4809AD
Number of CNG cycles required for
detection
The data is coded in the
same way as address
480933.
Factory setting: 23(H)
4809AE
Not used
Do not change this setting.
4809AF
Acceptable AI short protocol tone
(800Hz) detection frequency upper
limit (high byte)
4809B0
Acceptable AI short protocol tone
(800Hz) detection upper frequency
upper limit (low byte)
BCD
(Hz)
If both addresses contain
FF(H), tone detection is
disabled.
4809B1
Acceptable AI short protocol tone
(800Hz) detection frequency lower
limit (high byte)
4809B2
Acceptable AI short protocol tone
(800Hz) detection upper frequency
lower limit (low byte)
BCD
(Hz)
If both addresses contain
FF(H), tone detection is
disabled.
4809B3
Detection time for 800 Hz AI short
protocol tone
20 ms
Factory setting: 360 ms
4809B4
PSTN: Tx level from the modem
- N - 3
(dBm)
Function 08
(parameter 01).
4809B5
PSTN: 1100 Hz tone transmission
level
- N
4809B4
- 0.5N
4809B5
- 3.5 (dBm)
4809B6
PSTN: 2100 Hz tone transmission
level
- N
4809B4
- 0.5N
4809B6
- 3 (dBm)
4809B7
PABX: Tx level from the modem
- dBm
4809B8
PABX: 1100 Hz tone transmission
level
- N
4809B7
- 0.5N
4809B8
(dB)
4809B9
PABX: 2100 Hz tone transmission
level
- N
4809B7
- 0.5N
4809B9
(dB)
4809BA
ISDN: Tx level from the modem
- dBm
The setting must be
between -12dBm and -
15dBm.
4809BB
ISDN: 1100 Hz tone transmission
level
-N
4804BA
-0.5N
4804BB
(dB)