32
DHY-03 User Handbook
AC Impedance Setting
ACIM Value Simple Resistance
Series Complex Impedance
0
600 Ω
1
900 Ω
2
270 Ω
750 Ω || 150 nF
2
275 Ω
780 Ω || 150 nF
3
220 Ω
820 Ω || 120 nF
3
220 Ω
820 Ω || 115 nF
4
370 Ω
620 Ω || 310 nF
5
320 Ω
1050 Ω || 230 nF
6
370 Ω
820 Ω || 110 nF
7
275 Ω
780 Ω || 115 nF
8
120 Ω
820 Ω || 110 nF
9
350 Ω
1000 Ω || 210 nF
10
200 Ω
680 Ω || 100 nF
11
600 Ω
2.16 μF
12
900 Ω
1 μF
13
900 Ω
2.16 μF
14
600 Ω
1 μF
15
Global Compromise Impedance Setting
Table 3-13 : Telephone Interface Register 30 - AC Impedance settings.
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
On Hook
Speed2
-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 3-14 : 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 Interface
Draws 2.5mA
Table 3-15 : Telephone Interface Register 59.
(Use sum of required values)
SERIAL PORT CONTROL
SERIAL PORT C
ONTR
OL
3
