Product Overview

KOM300A industrial media convertor supports 1 fast Ethernet SFP port and 2 10/100Base-TX RJ45 ports. KOM300A provides 12-48VDC models to meet different applications. KOM300A is especially designed for harsh environments with wide (-40°C to 85°C) operating temperature range, EMC level 4, IP40 protection class, strong vibration-resistent mounting clip for DIN-Rail installation, it can be deployed in power, transportation, oil & gas and many other industrial applications.

Key Features
  • Support 1 Fast Ethernet SFP port, 2 10/100Base-T(X) ports
  • Built-in isolated power supply, Full load power consumption is as low as 2.3W
  • Power inputs with wide voltage range
  • EMC level 4
  • IP40 protection class
Technical SpecificationStandardIEEE 802.3i (10Base-T)
IEEE 802.3u (100Base-TX and100Base-FX)
Switch PropertiesMAC Table: 2K
Packet Buffer: 1Mbit
Packet Forwarding Rate: 0.75Mpps
Switching Delay:<10μs
InterfaceFast Ethernet Port:
100Base-X, SFP slot
10/100Base-T(X), RJ45 port
LEDLEDs on Front Panel
Power LED: PWR1, PWR2
Interface LED: Link/ACT (RJ45 port); Link/ACT (Fiber port)
Power RequirementsPower Input: 12-48VDC/18-30VAC
Power Terminal: 4-pin 5.08mm-spacing plug-in terminal block
Power Consumption:<2.3W
Overload Protection: Support
Reverse Protection: Support
Redundancy Protection: Support
Physical CharacteristicsHousing: Metal
Cooling: Natural convection, fanless
Protection Class: IP40
Dimension: 31mm×114.5mm×94mm(W×H×D)
Weight: 0.3Kg
Mounting: DIN-Rail or Panel Mounting
Environmental LimitsOperating Temperature: -40°C to +85°C
Storage Temperature: -40°C to +85°C
Ambient Relative Humidity: 5-95% (non-condensing)
Quality AssuranceMTBF: 5777888 hrs
Warranty: 5 years
ApprovalsCE, FCC
Industry StandardEMI:
FCC CFR47 Part 15,EN55032/CISPR22,Class A
IEC61000-4-2(ESD): ±8kV (contact), ±15kV (air)
IEC61000-4-3(RS): 10V/m (80MHz–2GHz)
IEC61000-4-4(EFT): Power Port: ±4kV; Data Port: ±2kV
IEC61000-4-5(Surge): Power Port: ±2kV/DM, ±4kV/CM; Data Port: ±2kV
IEC61000-4-6(CS): 10V (150kHz–80MHz)
IEC60068-2-6 (Vibration)
IEC60068-2-27 (Shock)
IEC60068-2-32 (Free Fall)
Mechanical Drawing
Ordering Information
1SFP2T1 X 100Base-X, SFP slot; 2 X 10/100Base-T(X) RJ45 ports
LV-LV12-48VDC/18-30VAC, redundant power inputs
100Base-X SFP modulePlease refer to the 100Base-X SFP module ordering list
DT-BGAZ-01Panel for Panel mounting
DT-FCZ-RJ45-01Dustproof cover for RJ45 port
NameTypeFile Size

Unmanaged Switches


DIN Rail Ethernet Switches



IP Class


Operation Temperature

-40°C ~ 85°C

Network Interface

Fiber Connectors, RJ45 Connectors


Full 100M

Number of Ports

0 – 8

Power Supply

12-48V DC

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