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Industrial Multi-Channel RS232 RS485 RS422 Fiber Converter 16 Ports DIN Rail 20km
Industrial Multi-Channel RS232 RS485 RS422 Fiber Converter 16 Ports DIN Rail 20km
Model: LNK-IRS series
Product Description & Overview
The Industrial Multi-Channel RS-232/422/485 Serial to Fiber Converters represent a high-density
solution for industrial communication networks requiring multiple serial port conversion. These
robust media converters efficiently transform 4 to 16 channels of RS232, RS485, or RS422
electrical signals into optical fiber transmissions, extending communication distances up to 2
kilometers using multimode fiber and 20 kilometers over single-mode fiber infrastructure. The
platform offers exceptional configuration flexibility, supporting various channel combinations
including mixed interface arrangements such as 8 RS232 + 8 RS485, 8 RS232 + 4 RS422,
or 8 RS485 + 4 RS422 ports within a single compact unit.
Engineered specifically for demanding industrial environments, these multi-channel converters
implement complete electrical isolation through fiber optic technology, effectively eliminating
electromagnetic interference, ground loop problems, and lightning surge damage that commonly
affect traditional copper-based serial networks. The DIN-rail optimized design ensures straightforward
installation and maintenance in control panels and industrial cabinets, while the hardened construction
withstands extreme operating conditions encountered in factory automation, process control facilities,
and outdoor industrial installations.
These high-port-density converters find ideal application across numerous industrial sectors including
factory automation systems, process control networks, SCADA monitoring infrastructure, and building
management systems. The transparent protocol conversion maintains complete data integrity across
all channels without requiring configuration changes to existing serial equipment, while the modular
architecture allows for easy system expansion as communication needs evolve. This solution provides
industrial operators with a reliable, interference-resistant serial communication platform that significantly
enhances network reliability while reducing cabling complexity and maintenance costs associated with
traditional multi-port serial communication installations in electrically challenging environments, making
it particularly suitable for transportation management systems, energy distribution networks, and industrial
IoT applications requiring secure multi-channel data transmission.
Key Features Bullets
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Industrial Hardened Construction
Fan-less DIN-rail design with IP40 aluminum housing, engineered for reliable operation in harsh environmental conditions
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Multi-Protocol Serial Interface
Built-in bidirectional RS232/RS422/RS485 serial ports with terminal block connections for secure wiring
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High-Density Port Configuration
Flexible channel support for 4-16 RS232 ports, 4-16 RS485 ports, or 2-8 RS422 ports in mixed configurations
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Automatic Baud Rate Adaptation
Fully transparent serial data transmission with self-adaptive baud rate detection, eliminating manual configuration
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Versatile Fiber Optic Connectivity
Supports SFP, FC, SC, and ST fiber interfaces with 2km multimode or 20km single-mode transmission capability
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DMX512 Protocol Compatibility
Optimized for high-speed DMX512 communication in professional stage lighting and entertainment control systems
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Wide Range Power Input
12-48VDC power supply with reverse polarity protection, ensuring stable operation across varying industrial power conditions
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Extended Temperature Operation
Wide operating temperature range from -40°C to 80°C (-40°F to 176°F) for extreme environment deployment
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Comprehensive Product Warranty
Backed by 5-year manufacturer warranty, guaranteeing long-term reliability and performance assurance
Technical Specifications & Indexes
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Fiber Optical Interface
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Fiber interface
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SFP, FC, SC or ST
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Cable requirement
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Multi-Mode: 50/125um, 62.5/125um
Single-Mode: 9/125um
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Fiber port
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1 Fiber Port
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Transmission distance
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Multi-Mode: 2km
Single-Mode: 20km
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Wavelength
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1310nm/1490nm/1550nm
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RS232 Serial Interface
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Physical interface
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Industrial standard screw terminal
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Data type
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Up to 16Ch RS232 Bi-Direction
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RS-232 signals
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TxD, RxD, GND
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Serial port line distance (copper)
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15 meters
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Baud Rate
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0 ~ 800kbps
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RS422 Serial Interface
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Physical interface
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Industrial standard screw terminal
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Data type
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Up to 8Ch RS422 Bi-Direction
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RS-422 signals
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Tx+, Tx-, Rx+, Rx-, GND
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Serial port line distance (copper)
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1000 meters
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Baud Rate
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0 ~ 800kbps
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RS485 Serial Interface
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Physical interface
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Industrial standard screw terminal
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Data type
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Up to 16Ch RS485 Bi-Direction
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RS-485 signals
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Data+, Data-, GND
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Serial port line distance (copper)
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1000 meters
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Baud rate
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0 ~ 800kbps
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Power Requirements
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Power input
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12~48VDC
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Power consumption
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<6W
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Power connector
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Terminal block
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Power protection
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Reverse polarity protection
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LED Indicator
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PWR
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Power Supply
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FL
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Fiber Link Status
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Data 1~16
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Serial Data Signal
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Mechanical
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Dimensions (LxWxH)
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119 x 114 x 50mm
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Weight
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0.55KG
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Casing
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Aluminum Case
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Mounting Options
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DIN-Rail Mount
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Environmental
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Working Temperature
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-40°C to 80°C (-40°F to 176°F)
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Storage Temperature
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-40°C to 85°C (-40°F to 185°F)
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Working Humidity
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5%~95% (Non-Condensing)
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MTBF
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216,388 Hours
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Regulatory Approvals
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EMI
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FCC Part15, CISPR (EN55022) Class A
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EMS
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EN61000-4-2 (ESD) Level 4, Criteria B
EN61000-4-3 (RS) Level 3, Criteria A
EN61000-4-4 (EFT) Level 3, Criteria A
EN61000-4-5 (Surge) Level 3, Criteria B
EN61000-4-6 (CS) Level 3, Criteria A
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Shock / Freefall / Vibration
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Shock: MIL-STD-810F Method 516.5
Free Fall: MIL-STD-810F Method 516.5
Vibration: MIL-STD-810F Method 514.5 C-1 & C-2
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Green
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RoHS Compliant
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Certifications:
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FCC, CE
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Ordering information
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Model
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Description
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LNK-IRS232-C04-SFP
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Industrial 4Ch RS-232 Serial to Fiber Converter, SFP Port (not including SFP modules), -40°C ~ 80°C
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LNK-IRS232-C04
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Industrial 4Ch RS-232 Serial to Fiber Converter, Multi-Mode, 1310nm, Dual Fiber, 2KM, SC, -40°C ~ 80°C
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LNK-IRS232-C04-20
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Industrial 4Ch RS-232 Serial to Fiber Converter, Single-Mode, 1310nm, Dual Fiber, 20KM, SC, -40°C ~ 80°C
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LNK-IRS232-C04-S20A
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Industrial 4Ch RS-232 Serial to Fiber Converter, Single-Mode, Single Fiber, 1310nm Tx/1550nm RX, 20KM, SC, -40°C ~ 80°C
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LNK-IRS232-C04-S20B
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Industrial 4Ch RS-232 Serial to Fiber Converter, Single-Mode, Single Fiber, 1550nm Tx/1310nm RX, 20KM, SC, -40°C ~ 80°C
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LNK-IRS485-C04-SFP
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Industrial 4Ch RS-485 Serial to Fiber Converter, SFP Port (not including SFP modules), -40°C ~ 80°C
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LNK-IRS485-C04
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Industrial 4Ch RS-485 Serial to Fiber Converter, Multi-Mode, 1310nm, Dual Fiber, 2KM, SC, -40°C ~ 80°C
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LNK-IRS485-C04-20
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Industrial 4Ch RS-485 Serial to Fiber Converter, Single-Mode, 1310nm, Dual Fiber, 20KM, SC, -40°C ~ 80°C
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LNK-IRS485-C04-S20A
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Industrial 4Ch RS-485 Serial to Fiber Converter, Single-Mode, Single Fiber, 1310nm Tx/1550nm RX, 20KM, SC, -40°C ~ 80°C
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LNK-IRS485-C04-S20B
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Industrial 4Ch RS-485 Serial to Fiber Converter, Single-Mode, Single Fiber, 1550nm Tx/1310nm RX, 20KM, SC, -40°C ~ 80°C
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LNK-IRS422-C02-SFP
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Industrial 2Ch RS-422 Serial to Fiber Converter, SFP Port (not including SFP modules), -40°C ~ 80°C
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LNK-IRS422-C02
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Industrial 2Ch RS-422 Serial to Fiber Converter, Multi-Mode, 1310nm, Dual Fiber, 2KM, SC, -40°C ~ 80°C
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LNK-IRS422-C02-20
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Industrial 2Ch RS-422 Serial to Fiber Converter, Single-Mode, 1310nm, Dual Fiber, 20KM, SC, -40°C ~ 80°C
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LNK-IRS422-C02-S20A
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Industrial 2Ch RS-422 Serial to Fiber Converter, Single-Mode, Single Fiber, 1310nm Tx/1550nm RX, 20KM, SC, -40°C ~ 80°C
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LNK-IRS422-C02-S20B
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Industrial 2Ch RS-422 Serial to Fiber Converter, Single-Mode, Single Fiber, 1550nm Tx/1310nm RX, 20KM, SC, -40°C ~ 80°C
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Mounting Options
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► Default DIN-Rail Bracket installed
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Power Options
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► DIN-Rail Power Supply. Open Wire for Terminal Block
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► Power Supply needs to be purchased separately
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Application Scenarios
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Industrial automation multi-channel control system integration
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Factory production line equipment serial communication networks
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Stage lighting DMX512 multi-channel control systems
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Railway and traffic signal control communication networks
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Building automation multi-device monitoring and control
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Power distribution SCADA system data acquisition
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Industrial IoT multi-sensor data collection and transmission
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Outdoor harsh environment multi-point monitoring systems
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