MODEL277A(M) 3ONEDATA RS232 to fiber

MODEL277 series are serial-to-fiber modems that convert RS-232/485/422 serial port signal to optical signal. This series include 3 types of optional products and support 1 RS-232, RS-485/422 or 3IN1 serial port to 1 fiber port. It adopts wall mounting or DIN-Rail mounting to meet the requirements of different application scenes.

This series adopt advanced communication coding and clock recovery technology to avoid data transmission error. And it adopts unique "Zero time delay and automatic forwarding" technology to enhance the anti-interference capability of interface and achieve real zero time delay. It can conduct automatic detection of baud rate, even the baud rate of the device serial signal changes; the converter can still achieve RS-232 or RS-485/422 to optical port conversion. MODEL277 series can be widely used in various industrial control, process control, traffic control, intelligent community and other scenes, especially suitable for bank, power industry, departments and systems with special requirements for electromagnetic interference.

 

 

Number of interfaces: 1

Interface form: Multimode SC/ST/FC port

Transmission distance: 2km

Transmission wavelength: 1310nm

Standards: EIA RS-232C, RS-485, RS-422

Number of interfaces: Support 1 RS-232, RS-485/422 or 3IN1 serial port

RS-232 signals: OUT, IN, GND

RS-485 signals: D+, D-, GND

RS-422 signals: T+, T-, GND, R+, R-

Baud rate: 300bps-115200bps

MODEL277A interface form: RS-232 serial port, DB9 female

Direction control: RS-485 direction adopts ADDC (Automatic Data Direction Control) technology

Load capacity: RS-485/422 end supports 32 points polling environment (customizable 128 points)

Transmission distance: RS-232, 15m; RS-485/422, 1200m

RS-485 pull high/low resistor: 4.7kΩ

 

Power supply indicator, fiber port data receiving and alarm indicator, fiber port data sending indicator

 

External power supply: 5VDC, adopts DC round head for connection, MODEL277B supports 2.0A overcurrent protection

Built-in power supply: -48VDC, adopts 3-pin 5.08mm pitch terminal blocks;

220VAC, adopts 3-hole AC socket with switch

 

Operating temperature: -10~60℃

Storage temperature: -40～85℃

Relative humidity: 5%～95% (no condensation)

 

Housing: IP30 protection grade, metal shell

Installation: wall mounting or DIN-Rail mounting (DIN-Rail accessories should be purchased separately)

 

dimension (W×H×D):

External power supply: 94mm×70.6mm×26mm

Built-in power supply: 173.2mm×115mm×30mm

 

CE, FCC, RoHS

 

3 years