1-Port Serial-to-Ethernet Modbus Gateway, Compact Version with optional Isolation


  • Rugged metal housing with DIN-Rail/Wall-Mount
  • Ease-of-use in Modbus protocol conversion include RTU, ASCII and TCP
  • 15 KV ESD protection for serial signals (MB5001C-Sisonly)
  • 10/100 Mbps Fast Ethernet Full Duplex Auto Negotiation
  • Monitor,Manageand Control Industrial Field Devices Remotely
  • Configurable via Built-InWeb Server Serial Console, or Telnet
  • Upgradeable firmware from remote-PC via Ethernet
  • Modbus compact design


  • Removable 3-pin Terminal Block(DC9-30V)+DCJack(DC 5V), two types of power input for MB5001C
  • Removable 3-pin Terminal Block powerinput(DC9-30V)for MB5001C-Sis
  • Operating temperature ranges from 0°C~60°C
  • Rugged high-strength housing
  • DIN-Rail or wall mountingability



Modbus is an industry adopted communication protocol that is based on RTU, ASCII, and TCP protocols for various of applications; these three protocols are commonly used by a lot of equipments in the industry, such as DCS, PLC, HMI, power meters, various sensors and measuring instruments. MB5001C series supports the standard Modbus protocol and is capable of converting the Modbus protocols between Modbus TCP (Master) to Modbus RTU/ASCII (Slave). It’s a simpleandcosteffectiveModbusGateway.

Diverse Hardware Infrastructure

MB5001C series which supports the three most commonly used serial communication interfaces, RS-232, RS-422 and RS-485. It also provides a web-based configuration UI, so the users can select the serial interface easily.


Connector RJ-45
Compliance IEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX
Port(s) 1
Transmission Rate 10/100 Mbps
Connector DB9 (MB5001C)
TB5 (MB5001C-Sis)
Mode RS-232 / 422 / 485 (MB5001C)
RS-422 / 485 (MB5001C-Sis)
Isolation For MB5001C-Sis
Port(s) 1
Baud rate 1200bps~230kbps
Parity None, Odd, Even, Mark, Space
Data bits 7,8
Stop Bit 1,2
Flow Control None, Xon/Xoff, RTS/CTS
Connector 5.08mm 3-pin Terminal Block and DC Jack
Input Voltage MB5001C – 9-30 VDC (TB3) and 5V (DC Jack)
MB5001C-Sis – 9-30 VDC (TB3)
Input Current 0.30A (MB5001C)
0.40A (MB5001C-Sis)
Power Consumption 2.7W max.(MB5001C)
3.6W max.(MB5001C-Sis)
Reverse Polarity Protection Yes
Redundancy No
EMC FCC Class A, CE Class A
EMS Meet Minimal Regulatory Requirement
Safety EN 60950-1
MTBF 57 years
Operating 0°C~60°C (32°~140°F)
Storage -40°~85°C (-40°~185°F)
Humidity 5~95%RH(Non-condensing)
(W x H x D) 65mm x78mm x 28mm
Material Metal
Installation Wall mount, DIN Rail (optional)
Reset Button Yes
Weight 200g
Main Feature Modbus Master (TCP) to Nodbus Slave (ASCII/RTU) Conversion
Configuration Serial Manager / Web UI / Telnet
Virtual COM Windows / Linux driver
Supported Protocol IPv4, ICMP, TCP, UDP, DHCP Client, SNMP, HTTP, Telnet, Modbus TCP, Modbus ASCII/RTU
Link Mode
TCP Server 1 Modbus TCP Master Connection
Warranty 5 years