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  • Media Converter
  • Isolator / Repeater
  • SMI
SMI is a DIN-rail RS232 port isolator with 3 kV optical/galvanic isolation, 15 kV ESD protection, and support up to 115 kbps.
SMI
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Key Features & Benefits

1.3 kV DC optical and galvanic port isolation


2.15 kV ESD protection on all signal lines


3.Protects sensitive COM ports from damage


4.Durable ABS enclosure with DIN-rail mount


5.Supports TX, RX, RTS, CTS, DSR, DTR signals


5.Flexible AC or wide-range DC power input


6.LED indicators for power and data activity
Get a Quote
PRODUCT CATEGORIES
Unmanaged Ethernet Switch Series

Built for rugged field applications with superior EMI resistance.

SC07

Ideal for sensitive industrial automation environments.

SC07 S

3000V DC optical and galvanic isolation

SMI

Product image
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Key Features & Benefits

  • 3 kV DC optical and galvanic port isolation
  • 15 kV ESD protection on all signal lines
  • Protects sensitive COM ports from damage
  • Durable ABS enclosure with DIN-rail mount
  • Supports TX, RX, RTS, CTS, DSR, DTR signals
  • Flexible AC or wide-range DC power input
  • LED indicators for power and data activity
Get a Quote
× ❮ Fullscreen image ❯
PRODUCT CATEGORIES
Unmanaged Ethernet Switch Series

Built for rugged field applications with superior EMI resistance.

SC07

Ideal for sensitive industrial automation environments.

SC07 S

3000V DC optical and galvanic isolation

SMI

EDS-2005-EL Overview
  • Overview
  • Specifications
  • Resources
  • Sub Models
CONTACT SALES >

Introduction

SMI is an RS232 Port Isolator engineered to provide robust protection for serial communication interfaces. Its primary function is to deliver a high degree of electrical isolation between connected devices, effectively neutralizing potential differences and blocking damaging voltage spikes. By creating this protective barrier, the Model SMI ensures the safety of equipment COM ports and maintains the reliability of data transmission in challenging electrical environments.

This device is specifically designed to safeguard standard RS232 serial ports, offering a straightforward solution for enhancing system resilience. It is an essential component for applications where data integrity and equipment longevity are critical. This protection is delivered through a set of core features designed for maximum safety and reliability.

Performance
Communication Speed: 1200 – 115 Kbps
Interface
Communication Signals: TX, RX, RTS, CTS, DSR, DTR
Input Connector: DB 9 Pin – Female
Output Connector: DB 9 Pin – Male
Power Connector: 3 Pin Screw type
Indicators
LEDs: TX, RX & Power ON
Electrical Characteristics
Model-dependent options available. See Ordering Information for details. Variants include 24V DC, 18-72V DC, and 90-260V AC.
Power Consumption: 1.2 watts
Optical Isolation: 3000 V DC
Galvanic Isolation: 3000 V DC
ESD Protection: 15KV min. on all Data Lines
Physical Characteristics
Enclosure: ABS Din Rail Mounting
Dimensions: 75 mm x 110 mm x 45 mm
Environment
Operating Temperature: 0 - 65°C
Relative Humidity: 5 – 95 % (non-condensing)
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Support Documents

What is the warranty of this product?

The product comes with a 1-year standard warranty.

What is the input power requirement?

The device operates on 230V AC, 50Hz.

Is the device RoHS compliant?

Yes, the product meets all RoHS compliance standards.

• SMI 24: For 24V DC Supply
• SMI 48: For Wide Range 18 to 72V DC Supply
• SMI 230: For 230V AC Supply (Range: 90 to 260V AC)

NAME TYPE
Datasheet
Certification
User Manual

Categories AC Supply DC Supply Download
SMI –

SAN TELEQUIP

Over the last three decades, SAN Telequip has evolved from process control and security surveillance solutions to advanced VPN Routers, Managed Industrial Ethernet Switches, and IIoT Gateways etc. Today, we serve diverse sectors including Building Automation, Oil & Gas, Telecom, Power & Energy, Renewables, Metro & Rail, ATMS/TMS, Data Centers, Mining, Healthcare, Infrastructure, and Industrial Automation. We design and manufacture rugged, high-reliability devices that connect systems, processes, and people in mission-critical environments. Driven by strong in-house R&D, we are advancing in Edge Computing, Secure Industrial Networking, TSN, Cybersecurity, 5G Technology and Cloud Connectivity – delivering future-ready solutions for next-generation infrastructure and Industrial Networks.

Phone

+91-020 27293455 / 56

Email

info@santelequip.com

Location

Deron Heights, Office No.504 & 505, 5th Floor,
S. No. 270/1/23, Baner Road,
Opp. Mahabaleshwar Hotel, Baner, Pune – 411045

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