Comprehensive Product Summary – ORing ISC-1112-I Industrial Isolated Serial Media Converter

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### 1. Product Overview

Product Name: Isolated 1-Port RS-232 to 1-Port RS-485/422 Media Converter
Model: ISC-1112-I
Series: ISC-1112 Series
Article Number: ISC-1112-I
Manufacturer: ORing Industrial Networking Corp.
Product Type: Industrial Serial-to-Serial Media Converter
Version: Serial to Serial Media Converter v1.4 (November 2010)

The ORing ISC-1112-I is an industrial-grade serial media converter designed to provide reliable and isolated communication between RS-232 and RS-422/485 interfaces. It is part of ORing’s ISC-1112 series, engineered for rugged industrial environments requiring robust data transmission, electrical isolation, and flexible installation options. The device features a compact IP30-rated ABS enclosure, supports wide operating temperatures, and includes both DIN-rail and wall-mounting capabilities.

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### 2. Key Features

- Isolated Serial Conversion: Converts RS-232 signals to RS-422 or RS-485 with 3000 VDC optical isolation, protecting connected equipment from voltage surges and ground loops.
- Industrial-Grade Design: Built with an IP30-rated ABS housing suitable for harsh industrial environments.
- Wide Operating Temperature: Reliable operation from -10°C to +70°C, ensuring stability in both indoor and outdoor industrial settings.
- Flexible Mounting Options: Supports both DIN-rail and wall-mount installations for versatile deployment.
- High-Speed Data Transmission: Supports baud rates from 300 bps up to 115.2 Kbps, accommodating a wide range of serial communication devices.
- Automatic RS-485 Direction Control: Hardware-based auto-direction control simplifies half-duplex communication without software modification.
- Comprehensive Signal Support: Handles RS-232 (TX, RX, GND) and RS-422/485 (TX+, TX-, RX+, RX-, Data+, Data-) signals.
- LED Status Indicators: Power, TxD, and RxD LEDs provide clear visual feedback for power and data transmission status.
- Low Power Consumption: Typical power usage of approximately 2.2 W, supporting energy-efficient operation.
- Extended Voltage Input Range: Accepts +9 to +30 VDC input, compatible with various industrial power systems.
- Rugged Reliability: Tested for shock, vibration, and free-fall resistance per IEC60068 standards.
- Regulatory Compliance: Meets FCC Part 15, CISPR (EN55022) Class A, and multiple EN61000-4 EMC standards.
- Ease of Integration: Transparent operation for RS-485 half-duplex communication—no software changes required.

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### 3. Technical Specifications

Physical Ports:
- RS-232 Connector: DB9 Female
- RS-422/485 Connector: 10-pin Terminal Block

Signal Assignments:
- RS-232: TX, RX, GND
- RS-422: TX+, TX-, RX+, RX-
- RS-485: Data+, Data-

Baud Rate: 300 bps to 115.2 Kbps
Data Bits: 5, 6, 7, 8
Stop Bits: 1, 1.5, 2
Parity Options: None, Even, Odd, Space, Mark
Flow Control: XON/XOFF (software), Auto Hardware Direction Control for RS-485
Isolation Voltage: 3000 VDC (optical isolation)

LED Indicators:
- Power: Green LED x1
- TxD (Transmit Data): Green LED x1
- RxD (Receive Data): Red LED x1

Power Requirements:
- Input Voltage: +9 to +30 VDC (via 10-pin terminal block)
- Power Consumption: ~2.2 W (typical)

Physical Characteristics:
- Enclosure Material: ABS Plastic
- Protection Rating: IP30
- Dimensions (W x D x H): 71.2 × 25.3 × 100.6 mm (2.8 × 1.0 × 3.96 in)
- Weight: Approximately 130 g

Environmental Conditions:
- Operating Temperature: -10°C to +70°C (14°F to 158°F)
- Storage Temperature: -25°C to +85°C (-13°F to 185°F)
- Operating Humidity: 5% to 95% RH (non-condensing)

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### 4. Functionality

The ISC-1112-I functions as a transparent serial media converter, bridging communication between RS-232 and RS-422/485 devices. It allows legacy RS-232 equipment to interface with modern RS-422 or RS-485 networks without requiring software or protocol modifications.

Operation Principle:
- The RS-232 port (DB9 female) connects to a host device such as a PC, PLC, or controller.
- The RS-422/485 port (10-pin terminal block) connects to field devices, sensors, or other serial equipment.
- The converter automatically manages signal direction for RS-485 half-duplex communication, eliminating the need for manual control.
- Optical isolation ensures that voltage spikes or ground potential differences do not damage connected devices.

Use Cases and Applications:
- Industrial automation systems
- Building management and control systems
- SCADA and telemetry networks
- Serial device networking and integration
- Factory floor communication between legacy and modern equipment
- Data acquisition systems requiring isolated serial communication

Compatibility:
- Compatible with standard RS-232, RS-422, and RS-485 serial communication protocols.
- Works with most industrial controllers, PLCs, sensors, and serial communication devices.

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### 5. Components & Accessories

Included Items (Standard Package):
- ISC-1112-I Media Converter Unit
- DIN-Rail Mounting Kit
- Wall-Mount Kit
- Quick Installation Guide

Optional Accessories (Sold Separately):
- DR-45 Series: 45W DIN-Rail Power Supply
- DR-75-12: 12V / 75W DIN-Rail Power Supply
- DR-75-24: 24V / 75W DIN-Rail Power Supply

Connectors:
- RS-232: DB9 Female Connector
- RS-422/485: 10-pin Terminal Block (V+, GND, Data+, Data-, TX+, TX-, RX+, RX-, N.C.)

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### 6. Installation & Setup

Installation Requirements:
- Power Supply: +9 to +30 VDC regulated power source
- Mounting Surface: DIN-rail or flat wall surface
- Environmental Conditions: Within specified temperature and humidity ranges

Mounting Options:
- DIN-Rail Mounting: The included DIN-rail kit allows quick attachment to standard industrial rails.
- Wall Mounting: The wall-mount kit provides secure installation on panels or enclosures.

Configuration:
- The ISC-1112-I operates transparently; no software configuration is required for basic operation.
- RS-485 direction control is automatic, simplifying setup for half-duplex communication.
- LED indicators assist in verifying power and data transmission status during installation.

Pin Assignment (RS-422/485 Terminal Block):
| Pin | Function | Description |
|-----|-----------|-------------|
| 1 | Data+ | RS-485 Data Positive |
| 2 | Data- | RS-485 Data Negative |
| 3 | N.C. | Reserved |
| 4 | TX+ | RS-422 Transmit Positive |
| 5 | TX- | RS-422 Transmit Negative |
| 6 | RX+ | RS-422 Receive Positive |
| 7 | RX- | RS-422 Receive Negative |
| 8 | N.C. | Reserved |
| 9 | V+ | Power Input Positive |
| 10 | GND | Power Ground |

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### 7. Performance & Capabilities

Data Transmission:
- Supports full-duplex RS-422 and half-duplex RS-485 communication.
- Transparent data conversion ensures compatibility with existing serial communication protocols.
- Baud rate range from 300 bps to 115.2 Kbps allows flexible integration with various devices.

Isolation & Protection:
- 3000 VDC optical isolation between RS-232 and RS-422/485 ports protects against electrical surges and ground loops.
- IP30-rated enclosure provides basic protection against dust and accidental contact.

Power Efficiency:
- Consumes approximately 2.2 W, suitable for continuous industrial operation.
- Wide input voltage range (+9 to +30 VDC) supports diverse power environments.

Reliability & Durability:
- Designed for continuous operation in industrial environments with high vibration and temperature variations.
- Tested for shock, vibration, and free-fall per IEC60068-2-27, IEC60068-2-6, and IEC60068-2-32 standards.

Limitations:
- Maximum baud rate limited to 115.2 Kbps (not suitable for high-speed serial applications beyond this range).
- IP30 rating provides limited protection; not suitable for outdoor or high-moisture environments without additional enclosure.

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### 8. Standards & Compliance

Electromagnetic Compatibility (EMC):
- EMI: FCC Part 15, CISPR (EN55022) Class A
- EMS:
- EN61000-4-2 (Electrostatic Discharge)
- EN61000-4-3 (Radiated Susceptibility)
- EN61000-4-4 (Electrical Fast Transient)
- EN61000-4-5 (Surge Immunity)
- EN61000-4-6 (Conducted Susceptibility)
- EN61000-4-8 (Power Frequency Magnetic Field)
- EN61000-4-11 (Voltage Dips and Interruptions)

Mechanical & Environmental Testing:
- Shock: IEC60068-2-27
- Vibration: IEC60068-2-6
- Free Fall: IEC60068-2-32

Safety & Reliability:
- 3 kV isolation ensures compliance with industrial safety standards for electrical isolation.
- Designed and tested for industrial-grade reliability and long-term operation.

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### 9. Additional Information

Warranty:
- Standard 2-year manufacturer warranty covering defects in materials and workmanship.

Support & Maintenance:
- ORing provides technical documentation, quick installation guides, and online resources for setup and troubleshooting.
- Firmware updates are not typically required, as the device operates transparently without embedded software.
- Routine maintenance involves verifying terminal connections and ensuring clean, dry installation environments.

Ordering Information:
| Model | Description |
|--------|--------------|
| ISC-1112-I | Industrial 1-port RS-232 to 1-port RS-422/485 serial media converter with 3 kV isolation |
| ISC-1112 | Industrial 1-port RS-232 to 1-port RS-422/485 serial media converter (non-isolated) |

Model Code Definition:
- A: Serial Port Type (1 = RS-232)
- B: Number of Ports (1 = 1 port)
- C: Converter Port Type (2 = RS-422/485)
- D: Converter Type (1 = 1 port)
- E: Other Type (0 = other type)
- F: Additional Function (I = Isolation, F = Fiber, U = USB)

Manufacturer Contact:
ORing Industrial Networking Corp.
Website: [www.oring-networking.com](http://www.oring-networking.com)

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### Summary

The ORing ISC-1112-I is a robust, industrial-grade isolated serial media converter engineered for reliable communication between RS-232 and RS-422/485 interfaces. With 3 kV optical isolation, wide voltage input, and extended temperature tolerance, it ensures dependable performance in demanding industrial environments. Its transparent operation, automatic RS-485 direction control, and flexible mounting options make it ideal for system integrators and engineers seeking a durable, maintenance-free serial communication solution.

Compact, efficient, and compliant with international EMC and safety standards, the ISC-1112-I exemplifies ORing’s commitment to rugged industrial networking excellence.