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The 4-Input / 8-Output Multiplexer is designed for operators who want to run more advanced or multi-function attachments using a loader equipped with a CAT / ASV / Terex 8-pin electrical output. Instead of being limited to only four machine-side circuits, this multiplexer expands your output to eight circuits, including two locking-style outputs.
The unit plugs directly into your machine’s 8-pin connector. Its pigtail connects to your attachment controller (for example, an ASW controller), and the output side provides a standard 14-pin connector. This allows older or simpler machines to run attachments that normally require 14-pin capability.
This multiplexer is especially useful when you need to run attachments with multiple solenoids, diverter valves, or additional electrical control functions beyond what the 8-pin system supports.
Machine Side: CAT / ASV / Terex ABC-Series 8-pin electrical output only. Not compatible with 14-pin machines.
Your loader must have enough built-in auxiliary controls or switches to operate the expanded functions. This device expands electrical outputs — it does not add new control buttons to the machine.
For wiring diagrams, configuration details, setup instructions, and pin-out verification, download the multiplexer’s official user manual:
Download the 4-Input / 8-Output Multiplexer User Manual (PDF)
This multiplexer is assembled using OEM-grade components and follows the standard wiring layouts used in ABC-Series systems and 14-pin attachment harnesses. However, machines differ in available electrical options, and attachments may have been modified by previous owners.
Always verify pin-outs on both the machine and attachment before applying power. Use proper Deutsch-style tools when adjusting pins or connectors. If you are unsure about compatibility or wiring, consult a qualified technician before operation.
This multiplexer lets older loaders with an 8-pin electrical port (like many CAT, Terex, ASV or similar machines) support up to 8 attachment functions — expanding what kinds of attachments you can use.
It works with machines that have an 8-pin machine-side electrical output, such as CAT ABC-Series, ASV, Terex and similar loaders. It does not work on machines that already have a 14-pin output. :contentReference[oaicite:1]{index=1}
The multiplexer can enable up to 8 functions — including two locking outputs — which you can access via a standard 14-pin connector. This allows more complex or modern attachments to be used on older 8-pin machines. :contentReference[oaicite:2]{index=2}
No. The multiplexer is designed to connect to your machine’s 8-pin port and convert its output to a 14-pin harness output. It’s plug-and-play as long as your loader uses the compatible 8-pin system. :contentReference[oaicite:3]{index=3}
Effectively yes — the multiplexer allows an 8-pin loader to drive attachments that expect a 14-pin wiring interface, giving you more flexibility without replacing your machine’s wiring. :contentReference[oaicite:4]{index=4}
Yes — you must ensure your loader’s 8-pin output is properly working with the original 4 switched ports. Also you need to confirm your machine has enough control buttons/outputs for the intended functions. :contentReference[oaicite:5]{index=5}
Yes — when installed correctly, the multiplexer provides robust and reliable outputs through a 14-pin interface, allowing you to run attachments designed for more modern wiring systems. As always, make sure the attachment’s requirements do not exceed what the machine and multiplexer can deliver.
Yes — since it outputs a standard 14-pin connector, you can plug and unplug attachments built for 14-pin wiring with minimal fuss, making attachment swaps easier than customizing wiring each time.
Make sure the multiplexer is properly connected to the loader’s 8-pin port, verify the 14-pin harness is intact and correctly plugged into the attachment, and ensure the attachment is compatible with a 14-pin wiring system. Faulty wiring, bad contacts or mismatched standards are common causes of failure.
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