Features:

* Complied to the standards of Telephone Accounting Device and Center Management for Telephone Accounting Device promulgated Ministry of information industry of the Peoples Republic of .
* Can be input many kinds of tariff rate, such as rates of international, internal, local, specialism, free and forbidden call.
* Signal for billing startup: polar-reverse, 12/16Khz pulse, manual or delay automatically.
* Identify call number automatically and the tolerance is less than 1 second.
* Can trace the last 200 records of telephone number, duration, total sum.
* Total automatically daily subtotal sum and the last 32-day grandtotal amount.
* With inner modem, supporting the function of network center manage, tariff rate download and phone bill upload.
* Anti- lightning , anti-jamming design and the steady performance.
* With rechargeable batteries, It can work 12 hours at least after power cut .
* With LCD display.
* Remote display box for option.
* Function of printing phone bill for option.

 

Conditions:
1) Environment: away from rain, sun, high temperature, dust, alkali, acid, strong vibration situation or strong electromagnetic wave
2) Atmospheric pressure: 86KPa - 106KPa
3) Relative humidity: 10% - 90%
4) Noise: <60dB
5) Temperature: -10°C - 40°C

Technology standards:
1) Timing accuracy: <1 sec
2) DTMF receiving standard: ≥-23dBm
3) Incoming receiving accuracy: >99.99%
4) Insertion loss: ≤0.5dB