4G LTE FWT ETS-8848 User's Manual Version 1.0
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3. On end of the telephone line connects to the “Phone” port of the terminal,
the other end connects to telephone.
4. “Power” port connects to power adapter that is connected to 110-220V AC
power supply.
1) The Installation for Connecting to Ordinary Telephone
The Sketch for connecting ordinary Telephone
Draw your attention:
Because there are many types of ordinary telephone and
their electric parameters are different. In order to avoid mutual disturbance
between telephone and terminal and affect voice quality. The distance between
telephone and terminal is 1.5m at least.
2) The installation for connecting to billing device for metering
If the users demand to register cost during calls, billing device can be
connected between terminal and ordinary telephone. Billing device register cost
according to the anti-polarity signal that is provided by the terminal.