Product Description:

        This optical fiber terminal for telephone services provides 16 telephone channels, 1~8 E1 interfaces, 4 10M/100M fast Ethernet interfaces (100M wire speed), and 4 extended service interfaces. The 4 Ethernet interfaces are switch ports and support VLAN division. The 4 extended service interfaces can be used as transmission channels for RS232/RS485/RS422 asynchronous data/TTL signals, switch signals and more, making the application very flexible.

Functional Features:

◆ Based on integrated circuits with independent intellectual property rights;

◆ The E1 interface complies with G.703 recommendation, adopting fully digital clock recovery and smooth phase-locked technology;

◆ The voice ports support FXO/FXS/2-wire and 4-wire EM/2-wire and 4-wire audio/magneto telephone interfaces. The FXO port is connected to a program-controlled switchboard, and the FXS port is connected to the user's telephone;

◆ For voice FXO/FXS access, it supports caller ID display function/reverse polarity billing/fax function;

◆ The telephone interface supports the number dialing function between the two stations;

◆ The 100M Ethernet bandwidth is 10M/100M wire-speed interface, with full/half-duplex automatic adaptation, and supports VLAN division;

◆ 4 expansion interfaces are provided, which can expand 1~4 channels of asynchronous data such as RS232/RS485/RS422/TTL; or 1~8 channels of switch signals;

◆ The 4 Ethernet interfaces are switch ports, which can also be divided into VLANs and can be set to 4 channels for logical isolation;

◆ Each Ethernet port supports Auto-MDIX (automatic crossover/straight-through cable adaptation);

◆ The relay-free transmission distance can reach 2~120 kilometers; it supports 1+1 optical port backup: when the main optical fiber fails, the backup optical fiber will work;

◆ Supports Console serial port network management and independent SNMP network management modes;

◆ Multiple power supply options are available: AC220V, DC-48V/DC24V, etc.; supports dual-power backup modes such as AC+DC; AC+AC; DC+DC;

◆ The telephone, network and serial interfaces are equipped with lightning protection, which meets the GB/T17626.5 (IEC61000-4-5) standard with short-circuit current wave 10/700μs and open-circuit peak output voltage 6KV;