• Mr Henry Thai
    Kocent Optec Limited is our long-term partner. In 8 years of co-operation times we together win many projects. Their fast connector and FTTH drop cable quality are best. Their products are cover my country now.
  • Mr Pablo
    I was surprised when i made first order with Kocent Optec Limited in 2014. One container 40GP of GYXTW cable and one container 20GP for fast connector, patch cord and adapter. They finished this order in 2 weeks only. Now we also purchase many type of FDB box and Splice Closure Box from them. Hope we will be stronger and stronger in telecom field.
Contact Person : Mary Linh
Phone Number : 86-18664578169
WhatsApp : +8618664578169

RS232 Fiber Optic Modem , RS422 RS485 Fiber Optic Converter FC UPC

Place of Origin Guangdong, China
Brand Name KCO, Kocent Optec Limited
Certification ISO9001, RoHS, UL
Model Number KCO-converter
Minimum Order Quantity Negotiation
Price Negotiation
Packaging Details carton box, wooden pallet
Delivery Time 5~7 days after get payment
Payment Terms Western Union, T/T, L/C
Supply Ability 50,000pcs/month
Product Details
Connector FC/UPC Speed 10/100M
Distance 1 Up To 40km (single Mode) Data Way 5 Ways
Distance 2 Up To 2km (Multimode) Optical Way 1 Way
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Product Description

RS232 Fiber Optic Modem , RS422 RS485 Fiber Optic Converter FC UPC




- RS232/422/485 Fiber Optic Modem is a type of RS-232/RS-485/RS-422 serial port fiber optic Modem.

- It adopts industrial standard design and its wall type outface design supports DIN-rail standard lead rail installation, featuring easy installation.

- Presently, many users make use of RS-232/RS-485/RS-422 serial port fiber optic Modem to solve the electromagnetic interference in engineers and to extend the RS-232/RS-485/RS-422 serial port transmission distance to several or even tens of kilometers.

- RS232/422/485 Fiber Optic Modem can provide users with RS-232/RS-485/RS-422 serial port end-to-end transparent transmission.

- Since signals are transmitted over fibers and these optical signals are free of electrical conductivity, they have strong anti-interference capacity and are immune to high-voltage power or thunders.



- Zero-Delay automatic forwarding

- Supporting three types of interfaces: RS232/485/422

- Automatic detection of serial port rate, judgment and control of data transmission direction

- Working wavelength: 850 nm (multi-mode); 1310 nm (single mode)

- Maximum communication rate: 500 Kbps

- Optional optical interfaces: ST/ SC/ FC

- Up to 2 kilometers in multi-mode transmission and up to 40 kilometers in single mode transmission

- Broad voltage inputs: 5-40 VDC or 85-265 VAC

- The interface supports 1500W surge protection and 15KV ESD protection

- External power supply



RS232 Fiber Optic Modem , RS422 RS485 Fiber Optic Converter FC UPC 0

Communication Indexes:

Standard In compliance with EIA RS-232 and RS-485 standards
RS-232 signal IN, OUT, GND
RS-485 signal D+, D-, GND
RS-422 signal R+, R-, T+, T-, GND
Fiber signal IN, OUT
Working mode Asynchronous working mode, point-to-point
Direction control Adopting automatic data flow control technology, supporting automatic judgment and control of data transmission direction
Baud rate 0-500 Kbps, automatic detection of signal rate
Fiber wavelength Multi-mode: 850 nm; single mode: 1310 nm
Transmission distance of electrical interface RS-232 interface: 15 meters; RS-485/422 interface: 1200 meters
Transmission distance of optical interface Multi-mode: 2 km; single mode: 40 km
Load capacity RS-485/422 interface supports 32 nodes (128 nodes customizable)
Interface protection 600W surge protection, 1500V ESD protection
Form of electrical interface 8-pin connector
Form of optical interface ST interface for multi-mode transmission and FC interface for single mode transmission


Environmental Indexes:

Operating temperature -25°C to 70°C
Maintaining temperature -40°C to 85°C
Humidity 5%-95% RH





Power Indexes:

Input power 12V input
Power consumption 2W


Appearance Indexes:

Length 100mm,9mm,2mm
Enclosure Iron enclosure
Color Technology blue
Weight 230g


Product pictures: 

RS232 Fiber Optic Modem , RS422 RS485 Fiber Optic Converter FC UPC 1RS232 Fiber Optic Modem , RS422 RS485 Fiber Optic Converter FC UPC 2RS232 Fiber Optic Modem , RS422 RS485 Fiber Optic Converter FC UPC 3



Carton box, wooden pallet



- By International Express such as TNT, DHL, UPS, etc

- By Air: CA, HA, AA, EA, etc

- By Sea