ABB TC516 twisted pair modem

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ABB TC516 Twisted Pair Modem  

1. Product Overview

The ABB TC516 is an industrial-grade twisted pair modem designed for reliable data communication in electrically noisy environments. This robust modem enables serial data transmission over long distances using standard twisted pair cabling, making it ideal for industrial automation and process control applications.

2. Key Specifications

3. Technical Features

✔ Multi-Protocol Support: Handles RS-232, RS-422, and RS-485 standards
✔ Advanced Noise Immunity: Built-in filtering for EMI/RFI protection
✔ Auto-Direction Control: Automatic RS-485 direction switching
✔ LED Diagnostics: Comprehensive status indicators
✔ Dual-Channel Operation: Two independent communication channels

4. Communication Characteristics

• Modulation: Digital baseband transmission

• Line Coding: NRZ with error detection

• Termination: Configurable 120Ω termination resistors

• Fail-Safe: Automatic biasing for RS-485 networks

5. Typical Applications

• SCADA Systems: Remote terminal unit (RTU) communication

• Process Control: DCS/PLC network extensions

• Building Automation: HVAC control networks

• Transportation: Signal system communications

• Energy Management: Meter data collection

6. Installation & Configuration

1. Wiring: Use shielded twisted pair (STP) cable (AWG 22-18 recommended)

2. Termination: Enable termination for end-point devices

3. Grounding: Single-point grounding for best noise immunity

4. DIP Switches: Configure for proper interface mode (RS-232/422/485)

7. Ordering Information

• Base Model: TC516

• Accessories: DIN rail mount kit (TC516-DIN), termination plugs

• Optional: TC516-EX for hazardous areas

8. Safety & Compliance

• Standards: EN 61000-6-2, EN 61000-6-4

• Certifications: CE, UL, ATEX (optional)

• EMC: Complies with industrial EMI standards

9. Maintenance

• Visual Inspection: Check LEDs for normal operation

• Periodic Testing: Verify data integrity at maximum range

• Firmware: Field-upgradable via service port

The structure and details of the product：

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