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DIN-Rail serial to fiber media converters
Product Overview

KOM200 provides serial to fiber switching for the low-rate signals of RS232, RS485 and RS422. The KOM200 supports 1 fiber port and 3 serial ports. The KOM200 provides 9-36VDC or 85-264VAC/120-300VDC single power input, supports DIN-Rail mounting, supports IP30 protection class. Transparent communication without the need of debugging, plug and play.

Key Features

One fiber port, three types of serial ports (RS232/RS422/RS485)
Transparent communication without the need of debugging, plug and play
Serial ports have 15KV ESD protection circuit
Serial ports support hot plugging
Abundant power supply options
IP30 protection class
FCC certificates


Product Specifications
Standard RS232,RS422,RS485
Interface Fiber Ports SM/MM fiber port, SC/ST/FC connector
Serial Ports:
Quantity of serial ports:
232/422:1 RS232,1 RS422
485/232:1 RS485,2 RS232
485/232A:1 RS485,2 RS232,The 2nd channel of RS232 and the 3rd channel of RS485 are multiplexing
Electrical characteristic: compliant with RS232/RS422/RS485
standards, RS485 interface can be connected to 32-128 nodes
Physical interface: 8-pin 3.81mm-spacing terminal block
Bit Error Rate: ≤10-10
Asynchronous rate:
Transmission Distance: RS232: 15m; RS422/RS485: 1200m
LED Indicators in the front panel
Running LED: Run
Interface LED: Link/ACT(Fiber Ports), 1, 2(Serial Ports)
Power Requirements Power Input:
Power Terminal:
3-pin 3.81mm-sapcing plug-in terminal block
Power Consumption<3w
Overload Protection: Support
Reverse Connection Protection: Support
Physical Characteristics Housing: Metal
Heat Dissipation Mode: Natural cooling, without fans
Protection Class: IP30
Weight: 0.3kg
Mounting: DIN-Rail mounting
Environmental Limits Operating Temperature: -40°C to +85°C
Storage Temperature: -40°C to +85°C
Ambient Relative Humidity: 5- 95% (non-condensing)
Quality Assurance MTBF: 1,162,867 hrs
Warranty: 5 years
Approvals FCC: Models with L5:12-24VDC
Industry Standard EMI:
FCC CFR47 Part 15,EN55022/CISPR22,Class A
IEC61000-4-2(ESD) ±6kV(contact),±8kV(air)
IEC61000-4-3(RS) 10V/m(80MHz-1GHz)
IEC61000-4-4(EFT) Power Port:±2kV;Data Port:±1kV
IEC61000-4-5(Surge) Power Port:±1kV/DM,±2kV/CM;Data Port:±1kV
IEC61000-4-6(CS) 3V(10kHz-150kHz);10V(150kHz-80MHz)
Mechanical standards:
IEC60068-2-6 (Vibration),
IEC60068-2-27 (Shock),
IEC60068-2-32 (Free Fall)
Mechanical Drawing


Ordering Information
1S 1 × single mode fiber port  
1M 1 × multi mode fiber port      
Connector Fiber port specifications
SC05  SC connector, multi-mode, 1310nm, 5km
ST05  ST connector, multi-mode, 1310nm, 5km
FC05  FC connector, multi-mode, 1310nm, 5km
SC40  SC connector, single-mode, 1310nm, 40km
ST40  ST connector, single-mode, 1310nm, 40km
FC40  FC connector, single-mode, 1310nm, 40km
232/422 1 RS232 serial port, 1 RS422 serial port
485/232 2 RS232 serial ports, 1 RS485 serial port
485/232A 2 RS232 serial ports, 1 RS485 serial port (The 2nd channel of   RS232 and the 3rd channel of RS485 are multiplexing)
H1  100-240VAC,50/60Hz;220VDC(85-264VAC/120-300VDC), single power input
L3 24VDC(18-36VDC), single power input
L5 12-24VDC(9-36VDC), single power input
KOMFrm KOM Panel for rack mounting -482.6mm×132mm×128.5mm