E-link China Technology Co., Ltd.

E-link China Technology Co.,Ltd.
Professional Fiber Optical Communication and CCTV Security Transmission Product Manufacturer


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Home ProductsSerial To Fiber Optic Media Converter

RS232 / RS422 / RS485 Serial To Fiber Optic Media Converter With SC SM 20Km

China E-link China Technology Co., Ltd. certification
China E-link China Technology Co., Ltd. certification
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RS232 / RS422 / RS485 Serial To Fiber Optic Media Converter With SC SM 20Km

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Large Image :  RS232 / RS422 / RS485 Serial To Fiber Optic Media Converter With SC SM 20Km

Product Details:
Place of Origin: Guangdong, China
Brand Name: E-link
Certification: CE/FCC/Rohs
Model Number: LNK-277S-20
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: Negotiation
Packaging Details: Standard export package
Delivery Time: 4-6 days
Payment Terms: T/T, Western Union, MoneyGram
Supply Ability: 5000pcs Per Month
Detailed Product Description
Serial Standard: EIA /TIA RS232, RS-422, RS-485 Fiber Type: Single-mode SC
RateRate: 0-120Kbps Working Temperature: -25~70℃
Distance: 20km Power Input: DC5V
High Light:

rs485 to fiber optic converter


rs422 to fiber optic converter

Serial RS232/RS422/RS485 to Fiber Optic Modem, SM dual fiber 20Km SC





LNK-277 Series is an industrial grade RS-232 / RS-422/ RS-485 to fiber optic converter which converts a standard RS-232 / RS-422 / RS-485 transceiver to a fiber optic link as to extend the serial signal up to 2Km on multimode fiber and 80Km on single mode fiber. This unit is enclosed in an industrial wall mount compact size rugged steel case.




  • Plug-and-play, hot pluggable
  • Extends RS-232 / RS-422 / RS-485 transmission up to 2Km on MMF, 80Km on SMF
  • Industrial Wall Mount Compact size rugged case
  • Protects against electrical interference and chemical corrosion
  • Built-in surge and static protection
  • Diagnostic and unit indicator LEDs
  • Wide temperature range


Technical Indexes

Standard EIA /TIA RS232, RS-422, RS-485
Fiber Connector SC standard, ST/FC optional
Fiber Distance 50/125um MMF: 2Km, 62.5/125um MMF: 5Km, 9/125 SMF:20/40/60/80Km
Serial Connector RS-232: DB9, RS-422, RS-485: phoenix terminal
Serial Distance RS232: 15 meters, RS-422, RS-485: 1500 meters
Rate 0-120Kbps
Baud Rate 300 Baud to 115,200 Baud
RS-485 D+, D-, GND
RS-422 R+, R-, T+, T-, GND
Power Supply DC2.5 5V(9V-48V)
Power rate 2W
Static protection 15KV electric static discharge (ESD) protection
Surge protection 1500W/sec surge protection
Operation Temperature -25°C to +70°C
Storage Temperature -40°C to +85°C
Storage Humidity 5%~90% non-condescending
Dimensions 110(L)*104(W)*28(H) mm
Weight 0.3kg/pcs



RS232 Application.jpgRS422 Application.jpgRS485 Application.jpg



Contact Details
E-link China Technology Co., Ltd.

Contact Person: Danik Hu

Tel: +8618682101350

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