RS422 RS232 RS485 to Single Mode Single Fiber SC GM168SM-C20A/B Serial to Fiber converter SC Connector 20km

GM168 is a sort of more function and economy RS 232 interface optic fiber MODEM. It is the best choice to connect RTU to HOST or SC ADA controller. It used Optic fiber as transfer medium, increase the transfer function of system. Communication equipment  abstain menace effective to lightning strike, surge, electromagnetism disturb under the secure environment.

Function and Characteristic

1. Support RS-232/RS-485/RS-422 interface
2. Asynchronous, point to point, rate up to 120Kbps
3. Support 9V~40V DC Volt input, consumption 2W
4. 1500W surge protection, 15KV static protection
5. RS-485/422 port support 32 node ( can choice hand-tailor 128 Node)
6. Working wavelength:  1310nm
7. Auto test signal rate, zero delay auto transmit

Performance guideline 

• Interface: support EIARS-232, 485, 422 standard
• Rate: 0-500Kbps
• Transmit distance: RS-232 port 15m, RS-485/422 port 1500m, optical port multi-mode 2KM, single-mode 20KM
• Working environment: 0℃ to 60℃

Appearance guideline

• Interface type: 8 bit terminal block, multi-mode choice ST/SC/FC interface, single mode choice
• FC/SC/ST interface
• L*W*H: 100mm*69mm*22mm
• Shell: Iron
• Color: White
• Weight: 230g

Pin define

Power interface

• GND   ———   Ground
• DCIN   ———   9-40V input

Optical fiber interface

• IN     ———   Optical fiber input
• OUT   ———   Optical fiber output

RS-485/422 port

• T+/D+  ———   RS-422 Send +/ RS-485 +
• T-/D-   ———     RS-422 Send -/ RS-485-
• R+     ———     RS-422 Received +
• R-     ——–      RS-422 Received –
• GND   ———     Ground

RS-232 port

• IN     ———      RS-232 input
• OUT   ———      RS-232 output
• GND   ———      Ground

Indicator light explain

Power: Power indication

• RxD: Optical fiber interface receive indication
• TxD: Optical fiber interface send indication

Application