Product Core Brief
- Model: ATK4A-00
- Brand: YOKOGAWA
- Series: CENTUM CS 3000 / CENTUM VP I/O Cable Interface Adapter
- Core Function: KS cable interface adapter for connecting Yokogawa analog I/O modules to AEA4D terminal boards.
- Product Type: DCS I/O Cable Interface Adapter
- Key Specs: KS cable interface adapter | For AEA4D terminal boards | Used with /K4A00 option code | Passive field termination accessory | No independent power supply
- Condition: New Original (New Surplus) / Factory Sealed
Product Introduction
Field wiring accessories are easy to overlook until an I/O module needs to be replaced. The is a YOKOGAWA KS cable interface adapter, used as the cable interface between Yokogawa analog I/O modules and AEA4D terminal boards.
It is not a standalone I/O module. Instead, it is ordered as part of the I/O module option code /K4A00, and appears in configurations such as AAI141-/K4A00, AAI143-/K4A00, AAI841-/K4A00, and AAI543-/K4A00. For maintenance and procurement teams, the ATK4A-00 is typically sourced when an existing KS cable interface adapter is damaged, missing, or when replacing an I/O module that requires the same terminal board connection method. Because it is a passive wiring accessory, compatibility depends mainly on matching the original I/O module option code and the connected terminal board type.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Full Model | |
| Product Type | KS Cable Interface Adapter |
| Compatible System | YOKOGAWA CENTUM CS 3000 / CENTUM VP DCS |
| Function | Cable interface between I/O module and AEA4D terminal board |
| Option Code | / |
| Paired I/O Modules | AAI141, AAI143, AAI841, AAI543 and other Yokogawa analog I/O modules with /K4A00 option |
| Terminal Board | AEA4D series |
| Power Requirement | None (passive interface adapter) |
| Typical Application | Field wiring termination for analog I/O modules in CENTUM CS 3000 / CENTUM VP FCS |
| Verification Required | Original I/O module model, /K4A00 option code, terminal board type, cable connector condition |
Key Selling Points & Differentiators
- Correct KS cable interface: Matches Yokogawa /K4A00 option code for AEA4D terminal board connection.
- OEM Yokogawa accessory: Suitable for CENTUM CS 3000 / CENTUM VP I/O maintenance and replacement.
- Passive field termination component: No firmware or address configuration required.
- Commonly paired with analog I/O modules: Frequently appears with AAI141, AAI143, AAI841, and AAI543 configurations.
- Not recommended for: Substitution with ATA4S-00, ATA4S-10, ATA4D-00, ATA4D-10, ACCC01, or other terminal options unless the original design explicitly uses the same interface type.
Quality Transparency SOP
Cable interface adapters should be verified for mechanical integrity and correct pairing with the I/O module.
- Incoming visual QA: Inspect factory packaging, label integrity, connector pins, and cable housing.
- Label verification: Confirm model and compatibility with the /K4A00 option code.
- Connector inspection: Check cable connectors and terminal mating points for bent pins, oxidation, or mechanical damage.
- Module pairing check: Confirm the original I/O module model and suffix require the /K4A00 KS cable interface adapter.
- Terminal board check: Verify the connected terminal board is an AEA4D series type.
- Final packing: Record batch information, apply protective packaging, and seal with a condition label.
Technical Risk Avoidance
Confirm the I/O module option code. ATK4A-00 corresponds to the KS cable interface adapter option. If the original module uses /A4S00, /A4S10, /A4D00, /A4D10, or /CCC01, the terminal interface is different.
Do not treat it as a standalone I/O module. ATK4A-00 is a cable interface adapter, not an analog input or output card.
Match the terminal board type. It is specified for connection to AEA4D terminal boards. Installing it with an incompatible terminal base may cause wiring or signal faults.
Verify the paired I/O model. Confirm whether the original module is AAI141, AAI143, AAI841, AAI543, or another Yokogawa analog I/O module that supports the /K4A00 option.
Check connector integrity. Damaged cable connectors or corroded pins can cause channel-level signal loss even if the I/O module itself is functional.
Confirm system generation. This adapter is typically used in CENTUM CS 3000 / CENTUM VP FCS I/O configurations. For other Yokogawa platforms, compatibility should be confirmed against the original installation.
Buyer’s FAQ
Is ATK4A-00 a genuine Yokogawa product?
Yes. The is a Yokogawa KS cable interface adapter, typically supplied as new original or new surplus.
What does ATK4A-00 do?
It is a cable interface adapter used to connect Yokogawa analog I/O modules to AEA4D terminal boards under the /K4A00 option code.
Can I use it without an I/O module?
No. It must be paired with a compatible Yokogawa I/O module that supports the /K4A00 option.
Is it the same as ATA4S-00 or ATA4D-00?
No. ATA4S-00, ATA4S-10, ATA4D-00, and ATA4D-10 are different terminal block options. They are not directly interchangeable with the KS cable interface adapter.
Which I/O modules use ATK4A-00?
Commonly AAI141, AAI143, AAI841, and AAI543 modules configured with the /K4A00 option.
What is the warranty and lead time?
Each unit carries a standard 12-month functional warranty from shipment, excluding damage from incorrect pairing, connector damage, or wiring errors. In-stock units typically ship within 1–3 business days after payment confirmation.









