Description
Product Overview
The Yokogawa AKB335-M005 is a 5-meter signal cable assembly designed for use in Yokogawa field control input/output (FIO) system installations. The manufacturer’s specification identifies the AKB335 series as a 50-pin-to-50-pin cable, making connector configuration and cable length the primary identification points during maintenance and procurement. This is a passive interconnection component rather than an active controller, processor, or signal-conversion module. Its role is to provide the specified physical connection between compatible system components.
The -M005 suffix identifies the 5-meter cable length. Yokogawa documentation lists a recommended operating temperature range of −20°C to +70°C for this cable family. The specification also identifies /NL as an option supporting CSA Non-Incendive instrumentation. Because the requested part number does not include /NL, do not assume that this option or its associated approval applies to the supplied cable. Confirm the complete order code and the requirements of the installation before purchase.
For maintenance engineers, the key replacement risks are incorrect pin configuration, connector mismatch, unsuitable cable length, and an unverified option code. A cable that fits mechanically is not necessarily electrically equivalent. Before installing the Yokogawa AKB335-M005, compare the existing cable’s labels, both connector ends, pin arrangement, routing requirements, and grounding provisions against the system documentation. Inspect connector contacts and cable insulation, and verify that the cable is suitable for the installed FIO hardware. These checks are especially important when restoring a legacy control cabinet or replacing a cable after intermittent signal faults.
Product Introduction (Non-Templated)
A signal fault in a control cabinet may originate in an interconnection cable rather than in the I/O module itself. The Yokogawa AKB335-M005 provides a specified 5-meter, 50-pin-to-50-pin connection for compatible FIO installations.
Match both connector ends and the complete part number before installation. Confirm the required option code separately; the base model alone does not establish every certification or installation approval.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yokogawa |
| Model | AKB335 |
| Full model number | AKB335-M005 |
| Product type | Signal cable assembly |
| Connector configuration | 50-pin to 50-pin |
| Nominal cable length | 5 m |
| Application | Yokogawa FIO system installations |
| Specified temperature range | −20°C to +70°C |
Option code /NL |
CSA Non-Incendive instrumentation option; verify whether required |
| Cable length tolerance | For lengths over 3,000 mm, the manufacturer’s general specification gives a positive tolerance of +3% or +1 m, whichever is smaller, and no negative tolerance |
| Electrical pinout | Verify against the applicable system documentation |
| Shielding and grounding | Confirm the cable drawing and installed configuration |
| Connector type and orientation | Verify against the actual assembly and drawing |
| Supply voltage | Not applicable as a standalone passive cable specification |
| Firmware compatibility | Not applicable to the passive cable itself; connected equipment compatibility still matters |
| Condition | Must be confirmed for the individual unit |
The pinout, connector details, and option code should be verified from the applicable cable drawing and installed system documentation. Do not infer them solely from the 50-pin connector description.
AKB335-M005
Related Products
These related Yokogawa cable variants may be relevant when checking cable length or replacement requirements. They should not be treated as interchangeable without verifying the system connection.
- Yokogawa -M002 — Same cable family with a specified 2-meter length. Consider only when the shorter cable meets the cabinet layout and routing requirements.
- Yokogawa AKB331-M005 — A 5-meter cable in the AKB331 family, also documented as a 50-pin-to-50-pin signal cable. Confirm the exact system application and part number before substitution.
- Yokogawa AKB331-M002 — A 2-meter AKB331 signal cable variant. Its length and model family differ from -.
Frequently Asked Questions
1. What is the Yokogawa – used for?
It is a 5-meter, 50-pin-to-50-pin signal cable intended for compatible Yokogawa FIO system installations. Confirm the connected hardware and cable pinout before using it as a replacement.
2. Canlace with -M002?
Only if a 2-meter cable meets the installation’s routing and connection requirements. Both are listed within the family, but the cable lengths differ. Check cabinet layout, bend radius, connector access, and the approved cable route before selecting the shorter version.
Does support firmware v3.1?
Firmware v3.1 is not a meaningful standalone compatibility specification for this passive cable. Compatibility depends on the connected FIO hardware, connector configuration, and approved system design. Verify those details against the installed equipment documentation.
4. Is the /NL option id in ?
The model number provided does not include /NL. Yokogawa documentation identifies /NL as an option supporting CSA Non-Incendive instrumentation. If the installation requires that option, confirm the complete order code and the markings or documentation supplied with the cable.
5. Can I hot-swap the cable while the control system is running?
Do not assume disconnection under power is permitted. The cable may carry signals used by active control functions, and removal can interrupt I/O communication or affect process operation. Follow the applicable Yokogawa instructions and plant maintenance procedures before disconnecting it.
6. How should I inspect a replacement cable?
Check both 50-pin connector ends for damaged or recessed contacts, inspect the cable jacket for cuts and crushing, and confirm the label and length. Where appropriate, qualified personnel should verify continuity and the pin-to-pin wiring against the correct drawing before connecting it to operational equipment.
7. How can I verify whether the supplied cable is new or refurbished?
Request photographs of the cable label, both connectors, and the complete assembly. Obtain written confirmation of the condition category and any inspection or continuity-test results. A clean jacket alone does not prove that the connector contacts or internal conductors are in acceptable condition.
Procurement recommendation: Specifgawa , 5 m, 50-pin-to-50-pin signal cable. Confirm the required /NL option, connector configuration, and approved pinout before ordering. For a control-system fault, inspect and test the cable and connectors before replacing an I/O module.
