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Serial Ethernet Converter (RS232, RS485, RS422)
Desktop, 2 ports

  • Model: HL-SE02P-V1
  • In Stock


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Don't let the small size of this serial to Ethernet converter fool you, it has a lot of power under the hood. Like the US2000A serial to Ethernet converter this converter is also utilizing the very reliable ARM processor. The main difference between the US2000A and this converter is that this one has two serial RS232 ports and one RS485 / RS422 port.

After installing the included VCOM software two serial ports can be created in your computer's Device Manager. Both RS232 ports can be used individually at the same time. The RS485 / RS422 port is programmatically attached to one of the RS232 ports so it can be used in combination with the RS232 port.

What is nice about this converter is that it is a small and convenient converter but still it has many configurable parameters, advanced settings and a very stable 32-Bit ARM7 processor.
This converter is main made for consumer, office, laboratory and light commercial applications and environments. It is not recommended for heavy-duty industrial environments due to its rather delicate design.

Several versions of Virtual COM software can be used with this converter: the included downloadable VCOM software, the free and Open Source Com0Com software or a pay-version from FabulaTech.

Ethernet Serial converter setup

Overall features
  • Serial interfaces: 2 x RS232, 1 x RS485/422
  • Serial ports: 2 ports
  • Processor: ARM7 32-bit
  • Baud rates up to: 1024000bps (1 port only)
  • Two serial ports can be used individually simultaneously
  • Built-in 2KV ESD protection for all serial signals
  • Parameter configuration via web browser
  • Ideal for networking with most serial devices
  • Built-in watchdog timer prevents system lockup
  • Power supply included

Useful optional accessories
(not included)

Null modem adapter
Null modem adapter

DB9 to RJ45 adapter
DB9 - RJ45 adapter

DB9 gender changer
Gender Changer

Model number HL-SE02P-V1
Processor ARM 7 32-bit
Serial Interface
No. of serial ports Port 0: 1 x RS232 port (male DB9)
Port 1: 1 x RS232 (male DB9) and 1 x RS485 / RS422 (screw terminals)
RS232 parameters TX, RX, RTS, CTS, GND
- Parity: None, Odd, Even, Mark, Space
- Data bits : 5, 6, 7, 8
- Stop bits : 1, 2
- Flow Control : RTS/CTS
RS485 / RS422 parameters D-, D+ and Tx-, Rx-, Tx+, Rx+
Baud rates Port 0 RS-232: 110 - 230,400bps
Port 1 RS-232: 110 - 1,024.000bps
Port 1 RS-422/485: 110 - 1,024.000bps
Protection 2KV ESD protection for each signal
LAN port
Ethernet RJ45, 10/100 Mbps, Auto-sensing 10BaseT or 100BaseTX
Protocols ARP, IP, ICMP, UDP, TCP Server, TCP Client, HTTP, DHCP, Telnet
Protection 2KV Magnetic Isolation
Parameter configuration Web browser
Virtual COM software
  • Included downloadable VCOM software (free full version)
  • FabulaTech Serial Port Redirector 2.5 (30-day Trial) compatible with Windows 98SE, ME, 2000, XP, 2003, Vista, 7, 10, 11, CE, 32/64-bit.
  • Com0Com Open Source software compatible with XP, Vista, 7, 8, 10 32/64-bit.
Operating Temp. 32°F to 140°F (0°C to 60°C)td>
Storage Temp. 14°F to 158°F (-10°C to 70°C)td>
Operating Humidity 5% to 95% RH
Dimensions 65 x 56 x 21mm (without screw terminals and DB9 connector)
Case Hard Plastic (PC)
Approvals CE, FCC, RoHS
Power 5VDC External Power, 2.5mm barrel connector, 145mA max.
Warranty 1 year Limited Warranty

For alternative serial to Ethernet solutions please see our full selection of serial Ethernet converters.

Quick Tip!

The dual port Ethernet to Serial converter

Using a dual port Ethernet to Serial converter is just as easy as using a single port Ethernet to Serial converter, the only difference is that on a dual port converter you obviously have two virtual COM ports available. After installing the virtual COM port software which is included with the converter, these two virtual COM ports show up in your computers Device Manager as if it were two built-in COM ports. The COM ports are managed by the software which is included with the converter. Notice that not all brands of Ethernet to Serial converters include virtual COM port software for free.

Worth mentioning about this particular converter is that it is designed with the extremely reliable and high-performance ARM7 CPU, which gives you a converter which is highly reliable and fast. Furthermore it allows you to use the open source virtual COM software called com0com.

This dual port Ethernet to Serial converter has built-in ESD protection (Electro Static Protection), which effectively protects the serial ports against most types of high voltage spikes and surges.

For alternative solutions please check our selection of Serial to Ethernet converters.


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