10BASE-T1L Screw Lock Cable with Sealed M8 or IEC 63171-6 Couplings

Overview

A 10base-t1l screw lock cable carries single pair Ethernet and power over the same two wires to a field device, and couples it with a threaded or bayonet metal shell rather than a latch. The two halves of that description solve two different problems. The single pair part removes the bulk that stops Ethernet reaching simple devices. The screw lock part stops the connector being the first thing to fail on a skid that vibrates all day. Interfaces are offered in sealed M8 single pair or IEC 63171-6 style, and we build to the pinout and length on your drawing.

Key Specifications

Four pairs down to one: what actually changes

Single Pair Ethernet moves from a four-pair channel to one balanced pair while still carrying data and power. For a plant with hundreds of simple field devices, that changes the physical job rather than just the bill of materials.

What IEEE 802.3cg defines, and what it does not

The physical layer is defined by IEEE 802.3cg, with power delivery over the same pair covered by IEEE 802.3bu. The published headline is a long reach at a modest data rate, which is what lets a device sit at the far end of a process skid or up a building riser without an intermediate switch or a fiber converter. Both the reach figure and the power class delivered over the pair sit on our confirmation list: we state them against a measured link on your build rather than quoting a brochure.

Choosing the coupling

The decision is mostly about what the device already presents. If you are specifying both ends, M8 wins on size and IEC 63171-6 wins where a plant standard exists. Where the plant runs M12 for power and sensors today, our single pair Ethernet cable in M8 and M12 shells may be the closer match.

Why the coupling is screwed, not clicked

Field device boxes live on vibrating skids, on pump frames and inside air handling units. A latch style plug is the first thing to let go there: it works loose, contact resistance climbs, and the fault presents as an intermittent device rather than a broken connector — the kind of fault that costs a night shift. A threaded or bayonet metal coupling holds the contact faces together, keeps the shield path continuous to the housing, and survives being unmade and remade during commissioning without losing its grip.

Typical applications for this 10BASE-T1L screw lock cable

• Process skids and packaged plant where every device needs one cable, not two
• Building automation trunks and valve islands, alongside our SPE bulkhead panel connector for 10BASE-T1L field devices
• Long sensor runs in tank farms and car parks, where distance alone would previously have forced a fiber converter
• Actuators and valve positioners on vibrating frames, paired with our M12 hybrid SPE cable for actuators and valve islands
• Retrofit of legacy 4-20 mA loops where a digital device replaces an analog head

How to specify your build

1. Coupling on each end — M8 single pair or IEC 63171-6 style, threaded or bayonet.
2. Conductor — 1 x 2 x AWG22 or AWG26, shielded.
3. Length and whether the run is fixed or moving.
4. Jacket — polyurethane or thermoplastic elastomer, and what it will be exposed to.
5. Ingress rating required on the mated pair, which we quote only against a test report.
6. Power class if the device is fed over the data line.
7. Quantity, and whether this is a prototype or a production order.

A drawing, or a photo of the device port and the switch side, is enough to start.

Workmanship and testing

For 10BASE-T1L Screw Lock builds the line runs to IPC/WHMA-A-620 Class 3 under ISO 9001, terminating 32 to 12 AWG. Every 10BASE-T1L build gets a continuity and pinout check before it is boxed, and seal checking is quoted whenever an ingress rating is on the drawing.

Every production run can ship with RoHS and REACH declarations and the electrical report agreed at quotation; see certifications and material declarations. UL styles and other named approvals are built to drawing: we source to the style you specify and document it, rather than asserting a listing we do not hold. Production runs on the same lines described under the assembly lines behind this build, where cutting, termination, molding and 100 percent electrical verification sit under one roof. Related reading: build-to-print cable assemblies. Tooling is quoted separately, cut in-house rather than brokered out, and owned by you.

Custom builds and ordering

10BASE-T1L Screw Lock prototype lots start from 1 to 50 pcs and ship in 3 working days. Production requires 500 pcs and runs 14 working days after sample sign-off. Tooling not already held adds around 10 working days. Your part number and labeling go on OEM and ODM 10BASE-T1L shipments, and we provide material certificates and first-article reports when asked.

Related single pair and industrial Ethernet links

• SPE bulkhead panel connector for 10BASE-T1L field devices
• 10BASE-T1L patch cord for single pair Ethernet, T1 industrial or M8
• Single pair Ethernet cable in M8 and M12 shells for sensor runs
• SPE M12 hybrid single-pair Ethernet and power cable
• M12 hybrid SPE cable for actuators and valve islands
• M12 IO-Link cable, master to device drop

Full range: screw-lock molded cable assemblies.

Frequently Asked Questions