Industrial Rail Type 1-4 channel RS232/422/485 (providing 3 type interface) Fiber Modem

This series of devices is industrial rail typeuse FPGA design providing 4-channel serial port each port supports RS232/422/485 three business interfaces. The device is the best choice of connecting a remote terminal unit (RTU) to a host (HOST) or a distributed data acquisition system (SCADA) controller with high cost performance. Effective transmission distance up to 0-120KM serial port communication speed up to 0-115.2KBPS.

Adopting optical fiber as transmission medium it can completely avoid the threats from harsh environments like lightning surges electromagnetic interference to communications equipment and it also eliminates the cost of lighting surge protection devices for using copper as transmission medium. 

◆ Provide 4-channel serial port each serial port also provides three serial ports RS232/422/485 (interface type can be set by DIP switch) to start the service on-site conveniently;

◆ It can detect control RS-485 data flow automatically no need handshake signal to control data flow;

◆ With the ability to detect serial signal baud rate automatically;

◆ When there is no optic signal. it can detect automatically the opposite end device is powered off or the fiber is disconnected and indicates on the LED;

◆ Rack type device provide network management SNMP;

◆ Serial channel can transmit asynchronous baud rate from 300-115.2Kbps adaptive serial data;

◆ Serial interface lightning protection to IEC61000-4-5 (10/700μS). Differential mode: 6KV impedance (2Ω); Common mode: 6KV impedance (2Ω);

◆ Support a wide range of 9-55V AC and DC power input;

◆ Support internal isolation redundant dual power input;

◆ Power supply support overload protection anti-reverse protection;

◆ Meet the industrial four electromagnetic compatibility requirements;

◆ Super lightning protection function: lightning protection anti-induced high voltage anti-surge and so on;

◆ Fanless efficient cooling reduce repair time;

◆ Anodized aluminum housing IP40 degree of protection able to withstand the harsh environment test;

◆ Rail or wall-mounted;

◆ Wide temperature type: Operating temperature -40 ℃ ~ +85 ℃;

◆ All models are 100% baked machine test the warranty period: 5 years.

Fiber          

Number of Fiber Ports:1

Fiber core ：Single fiber/dual fiber

Connector：FC/SC/ST/LC(SFP)

Wavelength：850nm/1310nm multi mode；1310nm/1550nm single mode

Transmission distance：20~120Km

Typical output power:

Single mode 1310/1550nm: >-9dBm

Multi-mode 850nm:-18dBm

Multi-mode 1310nm:-25dBm

Receiver Sensitivity: -28dBm~- 40dBm

Serial port        

Standard： 

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- 

RS-485 4 wires: TxD+ TxD- RxD+ RxD- 

RS-485 2 wires: A(TX+) B(TX-) Signal Ground

RS-232: RXD TXD Signal Ground

Electrical and mechanical feature         

Redundant dual power input:

 DC9-48V power consumption <5W

Overload protection: support

Reverse connection protection: support

Redundant protection: support

Access terminal: 4*5.08mm pitch plug-in terminal

Shell: IP40 protection grade aluminum alloy

Installation: rail installation wall-mounted installation

Weight: 0.75kg / PCS

Size: 133mm (L) x 120mm (W) x 50.0mm (H)

Working environment  

Operating temperature: -40 ℃ - +85 ℃

Storage temperature: -40 ℃ - +85 ℃

Humidity: 0% -95% (non-condensing)

MTBF:> 100000 hours