8 Appendix 1 - Telephone Registers
44
Telephone Interface Register 31 - parameters
36,61,86,111,136,161,186
Name
FULL
FOH
OHS2
FILT
LVFD
Function
Full Scale
Mode
Fast Off
Hook
Speed2
On Hook
-3dBFS
Filter Pole
Select
Line
Voltage
Force
Disable
Value
128=Full
Scale Mode
0=512ms;
32=128ms
64=64ms;
96=8ms
0=<0.5ms;
8=3ms
0= @ 5Hz;
2= @ 200Hz
1=Disable auto switch of Line Voltage to 0v at
Low Voltages
Table 8-12: Telephone Interface Register 31. (Use sum of required values)
Telephone Interface Register 59 - parameters
37,62,87,112,137,162,187
Name
SQ1 & SQ0
RG1
GCE
Function
Spark Quenching Receive Gain 1
Guarded Clear
Enable
Value
0 = Normal;
80=Australian
Spec.
4=Add 1dB Gain
to Hybrid
2=Telephone
Inter-face Draws
2.5mA
Table 8-13: Telephone Interface Register 59. (Use sum of required values)
