4-port isolated Modbus gateway running OpenWrt on a 580 MHz MIPS CPU with 128 MB RAM, offering 3 kV isolation, RS232/422/485 auto-detection, optional Wi-Fi, and support for 8 Modbus TCP masters.
SC10E4I MK 502

Key Features & Benefits

1.Four serial ports with automatic protocol detection


2.3 kV isolation for enhanced device protection


3.Supports eight Modbus TCP masters simultaneously


4.Wide operating range from –20°C to +70°C


5.Terminal power input with optional PoE


6.High-speed Ethernet with optional Wi-Fi


7.Metal enclosure for DIN-rail or panel mounting
PRODUCT CATEGORIES
Unmanaged Ethernet Switch Series

Key Features & Benefits

  • Four serial ports with automatic protocol detection
  • 3 kV isolation for enhanced device protection
  • Supports eight Modbus TCP masters simultaneously
  • Wide operating range from –20°C to +70°C
  • Terminal power input with optional PoE
  • High-speed Ethernet with optional Wi-Fi
  • Metal enclosure for DIN-rail or panel mounting
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PRODUCT CATEGORIES
Unmanaged Ethernet Switch Series
EDS-2005-EL Overview

Introduction

The SC10E4I MK 502 is a high-performance, 4 Port Isolated Modbus RTU to Modbus TCP Gateway. It is specifically designed to facilitate seamless protocol conversion and data exchange between serial-based industrial devices—such as PLCs, meters, and sensors—and IP-based Ethernet networks. By translating Modbus RTU commands from its serial ports to Modbus TCP on its Ethernet port, it allows TCP Masters to control and monitor RTU Slaves transparently across the network.

At its core, the device functions as a versatile communication hub, ensuring that critical data from the factory floor is accessible to higher-level management and control systems. Its rugged metal housing, extensive electrical protection, and wide operating temperature range make it exceptionally well-suited for deployment in demanding industrial environments where reliability is paramount. Whether operating as a TCP Server, TCP Client, RTU Master, or RTU Slave, the SC10E4I MK 502 provides the flexibility required for complex industrial control system architectures.

The gateway's performance is founded on a powerful hardware platform featuring a 580 MHz MIPS CPU, 128MB of DDR2 RAM, and a flexible OpenWrt Linux operating system. This combination ensures efficient protocol handling, stable network communications, and the capacity to manage multiple simultaneous requests without performance degradation.

These capabilities are enabled by a set of high-impact features designed to deliver superior connectivity, protection, and operational flexibility, differentiating the SC10E4I MK 502 in the industrial networking market.

Standards
WiFi Standard- 802.11b/g/n (Optional)
PoE Standard- 802.3-af (Optional)
Performance
CPU- MT7688AN MIPS CPU, 580 MHz
RAM- 128M Bytes DDR2 RAM
ROM- 32M Bytes Flash ROM
OS- OpenWrt Linux OS
Ethernet Speed- 10 / 100 Mbps (Auto Detecting)
Serial Port Speed - 300 bps to 921.6 Kbps
Interface
Ethernet Port Type- RJ-45 Connector
Serial Port Connectors - 4 Pin Terminal block for RS-485/422; DB9 for RS-232
RS-232 Pins- Rx, Tx, GND
RS-422 Pins - Rx+, Rx-, Tx+, Tx-
RS-485 Pins - Data+, Data-
WiFi Antenna Connector- 2dBi, RP-SMA
Serial Port Parameters
Parity- None, Odd, Even, Mark, Space
Data Bit - 5, 6, 7, 8
Stop Bit - 1, 2
Indicator
LED Indicators- SYS, PWR, WiFi, LAN, RX, TX
Cable & Distance
WiFi Tx Distance- Up to 100m
Electrical Characteristics
Power Input- DC 9~32 V (via Terminal Block or DC Jack)
Power Consumption- 300mA@12V
Surge Protection- 600W for RS-422 / 485 Port
ESD Protection- 15KV for all signals
Magnetic Isolation- Built-in 1.5KV (Ethernet Port)
Serial Isolation- 3000V DC
Physical Characteristics
Dimensions- 195 * 120 * 35 mm ( W * H * D )
Weight- 660 gm
Mounting- Back of Panel / Provision for DIN Rail
Housing Material- Metal
Environmental
Operating Temperature- 20°C to 70°C
Storage Temperature - 25°C to 80°C
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Support Documents

NAME TYPE
Datasheet
Certification
User Manual
Categories AC Supply DC Supply Download
SC10E4I MK 502