The main function of the telephone optical terminal in the optical communication, should be the field and the purchase of the telephone optical terminal should pay attention to some problems. What is an optical telephone terminal? The telephone optical end machine is also a kind of optical end machine, see its name.

Telephone optical terminal is the basic equipment of digital communication system, also known as PCM base group equipment. The device collects voice, data, image and other signals through various interface boards and transmits them point-to-point through optical fibers.

1, the user interface types are diverse (including voice, data, image), are assembled to the mother board in the way of small modular components, various user modules can be mixed assembly.

2. Support caller ID.

3. Reverse signaling can be provided for real-time billing.

4, direct use of optical fiber transmission (without optical end machine).

5, perfect status display function, easy to maintain and manage.

Polarity reversal signal of telephone optical terminal: The terminal switch provides 48V direct current, so the telephone line has positive and negative terminals. The reverse pole IS THE reversal OF THE polarity OF the telephone line in a very short time, and the reverse signal is used to identify the billing time. Hotels, restaurants and public phones have polarity signals. Ordinary telephone lines do not provide polarity signals. The working process of the telephone optical terminal is as follows: when a user dials a phone, as soon as the other party picks up the phone, the local telephone office reverses the polarity of the phone line of the user. The meter recognizes the polarity reversal and starts charging. If there is no answer or an error message is displayed, the local telephone office does not reverse polarity and the meter does not charge.

The telephone optical terminal is a new generation of highly integrated single-board optical path multiplexing equipment based on independent software and thick and thin film technology. It can directly provide up to 1~720 telephone voice interfaces and 1 100M Ethernet data interface on the optical transmission channel.

Telephone optical terminal series equipment is mainly used to complete the connection between telephones or telephones and program-controlled exchange through transmission network. Widely used in: need to solve the problem, small and medium-sized companies, highways and some temporary construction sites need to quickly solve the telephone and data business needs, as well as the current construction of the village telephone access project.