Cable Tester Phone For Telephone Telecommunication Check Phone DTMF Caller ID

Description

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Features：
The machine has a pulse and dual audio switch, suitable for use in a variety of different formats automatically switch from 48 to 60 volts fed in. Busy Redial and having a flash function
Set lightning induced overvoltage protection circuit for lightning-prone areas using
Attractive appearance compact, easy to carry and use
FSK and DTMF caller ID, auto-detection
Automatic recovery dial, dial ringback
Main function:
FSK and DTMF caller ID, auto-detection
16-digit number is displayed. . Dynamic storage 38 group calls, 16 outgoing group 5
HOLD function and OffHook host automatically hang up
Automatic recovery dial, dial ringback
FLASH time 1000ms / 600ms / 300ms / 110 ms optional
New call indicator
Item Description
NF-866 telecommunications check phone pocket integrated circuits can be wall-mounted
telephone.Allow access to the telephone network.
FSK technology and DTMF caller ID, automatic detection.
16 number displays.
Dynamic call to save 38 groups.
The HOLD function and off-hook host automatically hang up.
Track automatically dial, dial ring back.
Flash time 1000ms/600ms/300ms/110ms optional. New call indicator.
Technical Specifications:
(1) Ambient Temperature: -10 to +40℃
(2) Relative Humidity: 10% ~ 95%
(3) Atmospheric Pressure: 86 to 106kPa
(4) Environment Noise: ≤ 60dB (A)
(5) Ringing Level: ≥ 70dB (A)
(6) Transmission index (subscriber line length of 5km): sending loudness rating: ≤ 12dB
Receive Loudness Rating Value: 1dB
Side Tone Hidden Assessed Value: ≥ 10dB
DTMF dialing
signal frequency network in line with national standards, the frequency offset is not greater than ± 1.5%
Signal level: low-frequency group: -9 ± 3dBm
High Frequency Group: -7 ± 3dBm
high frequency components of the combined signal should be higher than the low-frequency component 2 ± 1dB unnecessary frequency component of the total power level should be less than two-tone multi-frequency signal at least a low-power low-frequency component.
Package included:1X cable tester
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