Product Core Brief

• Model: KS9-5*A
• Brand: YOKOGAWA
• Series: KS9 Signal Cable
• Core Function: 5-meter signal cable used for instrument and controller interconnection within Yokogawa control systems.
• Product Type: Instrument Signal Cable
• Key Specs: 5 m cable length | KS9 series | Yokogawa system interconnect
• Condition: New Original / New Surplus

Key Technical Specifications

• Product type: Yokogawa KS9-series signal cable
• Model code: *A
• Cable length: 5 m
• Series compatibility: Yokogawa KS9 cable family
• Typical applications: Controller interconnection, instrument signal wiring, panel-internal signal routing
• Handling: Protect connectors from bending, contamination, and moisture

Note: The KS9 series is less frequently documented than the KS1, KS2, and KS4 families. The exact connector type, pin count, and compatible instrument models should be confirmed against the official Yokogawa hardware manual or the original installed cable label before ordering.

 

Product Introduction

The KS9-5*A is a 5-meter signal cable from the Yokogawa KS9 series. It is used as an interconnect cable within Yokogawa control system installations, typically for linking controller modules, instrument units, or related system components.

For maintenance teams, this cable is useful when replacing damaged or aged interconnect cables in existing Yokogawa panels. Because Yokogawa KS-series cables include multiple families such as KS1, KS2, KS3, KS4, KS8, KS9, and KS10, confirming the correct series and connector type is important before replacement.

 

QA & Inspection SOP

Each cable is inspected before release:

1. Label verification: Confirm the cable is marked KS9-5*A.
2. Connector inspection: Check both connectors for bent pins, corrosion, loose shells, or missing locking hardware.
3. Cable jacket check: Inspect the outer sheath for cuts, crushing, kinks, or abrasion.
4. Continuity check: Verify pin-to-pin continuity to rule out open circuits or cross-wiring.
5. Insulation check: Check for short circuits between adjacent pins and between pins and shield or outer jacket.
6. Packaging: Coil and pack to avoid connector stress, with end caps if available.

Full system validation requires connection to the intended Yokogawa instrument or controller. If a loop test is required, confirm the equipment models and cable routing before dispatch.

Installation Pitfalls & Guide

❗ Confirm the KS series before replacement. Yokogawa KS-series cables include KS1, KS2, KS3, KS4, KS8, KS9, and KS10 variants, which may differ in connector type, pin count, or compatible instruments.

❗ Do not substitute KS9 with KS1 or KS2 without confirmation. Even if the cable length is the same, the connector format may not match.

❗ *Match the A suffix. The *A suffix indicates a specific style or specification variant. Other variants may exist with different suffixes.

❗ Route away from high-power cables. Keep signal cables separated from motor leads, VFD outputs, and high-current wiring to reduce noise interference.

Installation steps:

1. Pre-install: Identify the source and destination instruments, confirm model compatibility, and power down if required.
2. Disconnect: Remove the existing cable and label both ends if replacing in a live panel.
3. Install: Connect the KS9-5*A firmly, ensuring the locking mechanism is engaged on both ends.
4. Verify: Restore power, check communication or signal status, and confirm normal system operation.

 

Technical FAQ

What is the difference between KS1, KS2, and KS9 cables?
KS1 and KS2 are commonly documented as 40-pin to 40-pin signal cables. KS9 belongs to a different cable family within the Yokogawa KS series and may use a different connector format or application. Always verify against the original cable label or Yokogawa documentation.

Can A replace KS1-05B or KS2-5*A?
Not automatically. Although all three are 5-meter Yokogawa KS-series cables, they may differ in connector type, pin assignment, or compatible instruments. Cross-series substitution should only be done after confirming compatibility.

*What does the A suffix mean?
The *A suffix indicates a specific style or specification variant of the KS9 cable. Yokogawa cables may also carry other suffixes such as *B or /NL, which can indicate different construction, certification, or regional specification.

Which instruments use the KS9 series?
Exact compatible models should be confirmed against the Yokogawa hardware manual or the original installed cable label, as KS-series cables are used across multiple Yokogawa controller and instrument families.

Is this cable still available?
Availability depends on the KS9 series variant and suffix. Confirm stock condition, connector type, and warranty terms before ordering.