ABB TC625 3BSE002224R1 | AF100 Coaxial Modem Module for Advant DCS
ABB TC625 3BSE002224R1 | AF100 Coaxial Modem Module for Advant DCS - Image 2
ABB TC625 3BSE002224R1 | AF100 Coaxial Modem Module for Advant DCS - Image 3

ABB TC625 3BSE002224R1 | AF100 Coaxial Modem Module for Advant DCS

  • Model: TC625
  • Brand: ABB
  • Series: Advant / AF100 communications module
  • Core Function: AF100 fieldbus coaxial modem for controller and remote I/O communication
  • Type: Coaxial modem / communications interface module
  • Key Specs: DB9 electrical port + BNC coax port; 24 V DC supply; AF100 bus interface
Category:

Description

Key Technical Specifications

Parameter Specification
Part Number 3BSE002224R1
Model TC625
Product Type AF100 coaxial modem
Platform ABB Advant / AC800M / Advant S100 I/O family
Function Converts controller/remote I/O signals to AF100 coax bus signals
Interfaces DB9 electrical port; BNC coax port
Transmission Medium Coaxial cable
Supply Voltage 24 V DC
Redundancy Dual-bus redundancy supported per ABB AF100 architecture
Typical Use Remote I/O links, controller-to-controller links, AF100 trunk extension
Approx. Dimensions 216 × 153 × 63 mm
Approx. Weight 0.7 kg

 

Product Introduction

ABB TC625 3BSE002224R1 is an AF100 coaxial modem module used in ABB Advant DCS and remote I/O networks. It connects controllers, operator stations, and remote I/O segments to the AF100 fieldbus using coaxial cable.It provides a DB9 electrical interface to the local device and a BNC coax interface to the AF100 trunk. That makes it suitable for extending AF100 segments where electrical isolation, noise immunity, or longer cable runs are required. Because AF100 is a legacy network, always verify the node address, termination, and cable type before energizing the bus.

Installation & Configuration Guide

Preparation — about 10 minutes

  1. Confirm the module label reads TC625 / 3BSE002224R1.
  2. Identify the AF100 node address required for this device.
  3. Verify the 24 V DC supply is within the system range.
  4. Check the coax cable type, connectors, and termination resistors.
  5. Record the slot position, node address, and existing bus wiring.

Removal — 5–10 minutes

  1. If the module supports an active AF100 trunk, follow site procedures before removing it.
  2. Label the DB9 and BNC connections.
  3. Disconnect the coax cable and DB9 cable.
  4. Remove the 24 V DC supply if required by the installation.
  5. Take a photo of the wiring before removing anything.

Installation — about 10 minutes

  1. Inspect the BNC and DB9 connectors for bent pins or corrosion.
  2. Mount the module securely.
  3. Connect the DB9 interface to the controller, remote I/O, or communications device.
  4. Connect the BNC coax to the AF100 trunk with the correct orientation.
  5. Verify AF100 termination at the ends of the bus segment.

Power-On & Test — about 10 minutes

  1. Apply 24 V DC and check module status indicators.
  2. Verify the AF100 node address matches the configuration.
  3. Check that the controller recognizes the module.
  4. Monitor AF100 communication for errors or retries.
  5. If the node does not appear, check address, termination, cable continuity, and connector seating.

 

Troubleshooting Quick Reference

Symptom Most Likely Cause First Check
No status LEDs No 24 V DC supply Measure supply at the module terminals
Node not recognized Wrong AF100 address Verify node address in hardware and software
Intermittent communication Loose BNC or damaged coax Reseat BNC; check cable shielding and continuity
Whole segment fails Missing or incorrect termination Verify end-of-trunk termination per AF100 manual
DB9 link down Wrong cable or pinout Confirm DB9 wiring matches the connected device
Repeated bus errors Address conflict or noise Check duplicate addresses and routing near power cables

Dimensions, Mounting & Wiring Notes

  • Approximate dimensions: 216 × 153 × 63 mm.
  • Approximate weight: 0.7 kg.
  • Mounting: Module mounting style depends on the Advant / AF100 hardware configuration; verify the mechanical drawing before panel installation.
  • DB9 port: Connects to the local controller, remote I/O, or communications interface. Pinout must match the ABB device documentation.
  • BNC port: Connects to the AF100 coax trunk. Do not substitute arbitrary coax cable without confirming impedance and loss.
  • Power: 24 V DC. Keep the supply clean and properly fused.
  • ESD handling: Use grounded wrist straps when handling connectors and backplane interfaces.

 

FAQ

What does ABB TC625 3BSE002224R1 do?
It is an AF100 coaxial modem. It converts signals between a local device and the AF100 coax fieldbus so controllers and remote I/O can communicate.Is this a temperature transmitter?
No. TC625 is a communications modem, not a temperature transmitter.What connectors does it use?
It typically has a DB9 electrical port and a BNC coax port for the AF100 bus.Can I use it on a new ABB system?
AF100 is a mature platform. It can still be used for replacements or extensions, but verify compatibility with the current ABB system design.Does it support redundancy?
AF100 networks can be configured with redundant buses, and the TC625 is used within that architecture. Confirm the exact redundancy method with the ABB manual.I replaced the module but the node still faults. What should I check?
Check the node address, termination, coax continuity, DB9 wiring, and 24 V DC supply. A wrong address or missing termination is more common than a bad module.Is this item new or refurbished?
Both conditions may be available. Each unit is listed as New Surplus, Factory Sealed, or Refurbished (Tested). The exact condition, serial number, and test result are confirmed per order.

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