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2FE Fiber Media Converter with Serial (RS232/RS422/RS485/Dry Contact Closure)

View : 619
Type : Special Function Serials
Description :

The device supports 2 Fast Ethernet + 1 RS232/42/485 / dry contact closure to optical fiber transmission, can realize the transmission of 2* 10 / 100 BASE-T


    The device supports 2 Gigabit Ethernet + 1 RS232 / 422 / 485 / dry contact closure to optical fiber transmission and can realize the transmission of 2* 10 / 100 BASE-T twisted pair Ethernet + 1*RS232 / 422 / 485 to optical fiber or the extension of network transmission distance. Like the fiber media converter (Ethernet optical transceiver), the RS485 fiber modem is widely used in various industrial occasions, the former is used in computer networking, and the latter is used in industrial control, all-in-one card, instruments and meters, etc. In many engineering projects, the demand of two kinds of equipment exists at the same time. Our company timely introduces optical fiber transmission equipment, which can have 2* shared 10 / 100 m network ports and 1* RS232 / 422 / 485 interface at the same time, and only transmit through one core optical fiber, which saves not only optical fiber resources, but also saves optical fiber equipment, reduces fault points, and facilitates the maintenance of the equipment. It is widely used in the application of HD network video monitoring and other occasions where two other data interfaces are needed.




It provides two Fast Ethernet ports and one data interface, which can expand one asynchronous data or two dry contact closure, and supports the data transmission channel of RS232 / RS485 / RS422 / TTL / switch value, with the flexible application;
The LED light of the end device indicates the optical link status of the opposite device;
Ethernet interface automatically adapts to 10/100 Mbps environment, which is convenient for network upgrading;
Ethernet interface supports full duplex and half duplex network communication, with automatic negotiation ability, MDI/mdi-x adaptive without manual adjustment;
The serial interface is screw free terminal, which is convenient for users to connect;
Serial data channel can transmit asynchronous serial data adaptive from 300-115200 baud rate;
The transmission distance without relay is more than 2-120km;
The network and serial interface shall be provided with lightning protection, which shall meet the short-circuit current wave 8 / 20 μ s and open circuit peak output voltage 6kV standard of GB / t17626.5 (iec61000-4-5);
A variety of power supply options: AC220V, dc-48v, etc.; support AC + DC dual power supply;
Dc-48v power supply has automatic polarity detection function, so it is unnecessary to distinguish positive and negative poles during installation.


● Fiber
Optical port: 1
Optical Fiber: Single core/dual core
Fiber interface: FC/SC/ST/LC(SFP)
Wavelength: 1310/1550 for Single mode; 850/1310 for multi-mode;
Transmission distance: 20-120Km
Typical transmit power: ≥-9dB for single mode; -18dBm for 850nm multi-mode; -25dBm for 1310nm multi-mode;
Receive sensitivity range: -33dBm~- 40dBm

● Ethernet Port
Protocol: in accordance with IEEE 802.3, IEEE 802.1Q(VLAN)
Rate: 10/100M self-adaptive, Full/half duplex full adaptive
MAC address: 4096
Physical interface: RJ45, support Auto-MDIX(Cross / straight line adaptive)
Serial port
EIA/TIA-232 RS-232 (ITU-T V.28)
EIA/TIA-422 RS-422 (ITU-T V.11)
EIA/TIA-485 RS-485 (ISO/IEC8284)
  Serial interface:
RS-422: TxD+, TxD-, RxD+, RxD-, Signal Ground
RS-485 4 wires: TxD+, TxD-, RxD+, RxD-, Signal Ground
RS-485 2 wires: Data+(corresponding to TX+), Data-(corresponding to TX-), Signal Ground
RS-232: RXD, TXD, Signal Ground

● Dimension
Power supply: AC180V ~260V;DC –48V;DC +24V
Power consumption: ≤5W
Size: (L×W×H) 216×138×31mm desktop type

● Working Environment
Working temperature: -10℃—+70℃ or -40℃—+85℃(industrial type)
Storage temperature: -40℃—+85℃
Working humidity: 0%—95%(non-condensation)
MTBF: >100,000 hours




Functional Description 1*optic to 2*FE Ethernet +1* data (RS232/RS422/RS485/Dry contact closure)
, internal power
Port Description

1 channel 1*9 fiber modem,2* FE UTP,1 Data;


Power supply: AC180V ~ 260V;DC –48V
Power consumption: ≤10W


(L×W×H)  140×110×31mm Desktop type


1.0Kg / PCS


application of fiber media converter


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