● Card-type design, easy to replace if there is a problem, avoid the problem that the whole device needs to be replaced if there is a problem with the 1-way telephone;
● Convenient expansion, just add a card, easy maintenance, just replace the card;
● The device is an 8U 19-inch chassis. It consists of a single optical port board and 16 60-channel telephone function boards. The optical port board provides 4 10/100/1000M Ethernet interfaces + one 1 + 1 optical interface + 2 expansions. Business interface model RS232/RS485/RS422, SNMP module, 4E1 interface, etc.;
● 60-channel voice card can also be replaced with 2 E1 cards, supporting up to 32 E1 receivers;
● The voice port supports FXO/FXS/2-line audio/magnet telephone interface, the FXO port is connected to the program-controlled switch, and the FXS port is connected to the user’s phone;
● 1-960 FXO/FXS access, support caller ID function/reverse polarity billing/fax function;
● The optional 4-way Ethernet interface is a switching interface and can also be divided into VLANs;
● Ethernet interface speed is 100M or Gigabit optional, full duplex/half duplex adaptive;
● With the function of viewing and displaying the working status of the remote device at the local end;
● The transmission distance without a relay can reach 2 ~ 100 kilometers;
● Multiple power supply options: AC220V, DC-48V, etc .; DC-48V power supply has automatic polarity detection function, no need to distinguish between positive and negative poles during installation;
● Telephone interface with lightning protection, anti-radar to GB/T17626.5 (IEC61000-4-5) short-circuit current wave 8/20μs, open-circuit peak output voltage 6KV standard.
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