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16
Electronic Specification
DTMF receiver:
(Signal send by user’s equipment)
Level :
-24dBm~+2dBm
Frequency Tolerance:
+/- 1.5%
Distortion:
Less than 2%
Duration time:
40mS (min.) term :without dial tone
Inter-Digit Pause:
40mS(min.)
Pulse receive:
Speed:10 or 20PPS, M/B: 33/66 or 40/60
DTMF Sender:
Level :
HF -7dBm, LF -5dBm, @0KM
Frequency Tolerance:
less than 0.8%
Distortion:
Less than 1%
Duration time:
70mS (min.)
Inter-Digit Pause:
70mS(min.)
Pulse Sender:
Speed:
9.9 PPS
M/B:
33/66
Inter-digit pause:
800mS
DC resistance:
On-hook: 12
Mega-ohms
Off-hook:
93 ohms @ 20mA, 200 ohms @ 96mA
AC resistance:
On-hook:
>100 K ohms
Off-hook: 568 ohms ~ 590 ohms
Detected ringing Voltage:
>27Vrms
Insertion Loss:
+/-0.5dBm
Frequency response:
300Hz-3.4KHz (+/- 0.5dB)
Tone/Voice Detect Range
: 300Hz-500Hz @+2~ -27dBm
Cable Length and Loop Resistance:
400
at radius of 0.65mm, Max. effective distance=800M.
DC Adapter requirement:
DC 24V/150mA
Power Dissipation:
2.6W(Full load)
Weight:
0.38KGW
Dimension(mm):
160X125X30