2000-A2-GB20-10
- 252 -
February 2004
Country
Codes Tables
This appendix specifies the settings for each country code setting
supported by the IAD. When you select a specific country mode, the
values are set automatically.
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Table B–1. Country Code Settings—USA, Australia 1 and 2, and Germany
Parameters
USA
Australia1
Australia2
Germany
Min. Flash Hook (ms)
300
40
40
90
Max. Flash Hook (ms)
1550
140
140
130
Ring Frequency (Hz)
20
25
25
25
Receive Gain (dB)
-2
0
0
0
Transmit Gain (dB)
-4
-7
-7
-7
Ref/Input Impedance
(Ohms)
600
200 + (820 // 120nF)
600
220 + (820 // 115nF)
Load Impedance
(Ohms)
600
200 + (820 // 120nF)
600
220 + (820 // 115nF)
Table B–2. Country Code Settings—France, ETSI, United Kingdom, and Belgium1
Parameters
France
ETSI
United
Kingdom
Belgium1
Min. Flash Hook (ms)
90
90
90
90
Max. Flash Hook (ms)
130
130
130
130
Ring Frequency (Hz)
50
25
25
25
Receive Gain (dB)
-1.9
0
1
0
Transmit Gain (dB)
-8.9
-7
-6
-7
Ref/Input Impedance
(Ohms)
220 + (820 //
115nF)
270 + (750 //
137nF)
300 + (1000 //
220nF)
150 + (830 //
72nF)
Load Impedance
(Ohms)
600
270 + (750 //
137nF)
370 + (620 //
310nF)
150 + (830 //
72nF)
