ITS Telecom ADRA 1000, Инструкция по установке и программированию

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APPENDIX A EAR/ADRA SPECIFICATIONS
The following are the EAR 1000/2000 and ADRA 1000/2000 specifications:
DC Power Supply
(Input) 220VAC, 50 Hz
(Input) 110VAC, 60 Hz
(Output) 9 VDC/800 mA
Line Voltage
24 to 72 VDC
DC Leakage Current
< 10
µ
A
On-hook Insulation Resistance between
Line Terminal and
the Ground
0 to 100 VDC > 5 M
Ω
100 to 200 VDC > 30 K
Ω
500 VAC/50 Hz > 20 K
Ω
100 VAC/25 Hz > 100 K
Ω
Ring Capacitor
0.47
µ
F ± 10%
On-hook Impedance
@ 50 VDC, 40 Vac/25 Hz > 3000
Ω
Ring Detect 27 to 100 VAC/16 to 60 Hz
DC Resistance (off-hook)
24 to 66 VDC @ 20 to 100 mA
Impedance (off-hook)
300 to 3400 Hz 500 to 700
Ω
Imbalance Ratio 300 to 3400 Hz > 46 db
Return Loss
300 to 3400 Hz > 18 db
Current during Break
< 700
µ
A
DTMF Transmission:
Frequency
Tolerance
Frequency Level (High Group)
Frequency Level (Low Group)
+1.5%
-6 to -8 dBm
-8 to -10 dBm
Inter-digit Pause in Tone Dialing 70 to 80 ms
Recording Time
9 Minutes
EAR/ADRA Installation and Programming Manual A-1