Products Description
YOKOGAWA ATK4A-00 KS Cable Interface Terminal Adapter in stock
YOKOGAWA ATK4A-00 is a passive KS cable interface terminal adapter designed for Yokogawa CENTUM VP / CS3000 DCS FIO I/O modules. It converts the high-density connector of FIO modules into KS cable interface, connecting I/O cards to remote terminal boards such as AEA4D and A1BA4D via KS series multi-core cables.

This passive adapter supports analog 4-20mA, voltage and discrete signal transmission, and can be used in redundant I/O configurations. It simplifies cabinet wiring and allows I/O module replacement without disconnecting individual field wires. It is widely supplied as spare parts for maintenance and retrofit of legacy Yokogawa DCS systems.
Main Specifications
| No. | Item | Parameter |
|---|---|---|
| 1 | Brand | YOKOGAWA (Yokogawa Electric) |
| 2 | Model | ATK4A-00 |
| 3 | Module Type | KS Cable Interface Terminal Adapter (Passive) |
| 4 | Compatible System | CENTUM VP / CENTUM CS3000 DCS FIO I/O |
| 5 | Supported Signals | 4-20mA analog, voltage, discrete digital signals |
| 6 | Matching Cable | KS1, KS2, KS8, KS9 dedicated multi-core cables |
| 7 | Operating Temperature | 0℃ ~ +55℃ (control cabinet environment) |
Core Functions
| No. | Function Description |
|---|---|
| 1 | Convert high-density FIO module connector to KS cable interface for remote terminal connection |
| 2 | Transmit analog and digital signals between DCS I/O modules and field terminal boards |
| 3 | Support dual redundant I/O configuration for high availability process control system |
| 4 | Realize hot-swap maintenance: replace I/O card without removing field wiring terminals |
| 5 | Passive circuit design, no power consumption, stable signal transmission and high reliability |
Application Scenarios
| No. | Application |
|---|---|
| 1 | Power plant DCS control cabinet signal wiring for CENTUM VP system |
| 2 | Petrochemical and chemical plant process monitoring and closed-loop control |
| 3 | Oil & gas processing plant HART analog signal acquisition and output |
| 4 | Pharmaceutical, water treatment and other continuous process control systems |
| 5 | Legacy Yokogawa CENTUM DCS spare parts replacement and system retrofit |
FAQ
| No. | Question & Answer |
|---|---|
| 1 | Q:What is YOKOGAWA ATK4A-00? A:It is passive KS cable terminal adapter for Yokogawa CENTUM DCS FIO modules, used to connect I/O cards and remote terminal boards via KS multi-core cable, simplifying cabinet wiring and maintenance. |
| 2 | Q:Does ATK4A-00 need external power supply? A:No, it is a passive adapter, no power supply required, only for signal routing and conversion. |
| 3 | Q:Is this product still in production? A:Yokogawa has phased out some older FIO accessories, most stock comes from surplus or refurbished spare parts for DCS maintenance. |