A 10-meter M12-to-open-end cable that connects an IO-Link device or SIMATIC RF reader directly to cabinet terminal blocks. The straight M12 socket plugs onto the device; the open end lands on DIN rail terminals—eliminating the intermediate patch panel or field junction box that a plug-to-plug cable would require.

When is an open-end cable the right choice?

Choose an M12-to-open-end configuration when the cable terminates inside a control cabinet. Landing ferrules directly on terminals avoids an unnecessary M12 bulkhead connector, reducing potential failure points and saving panel space. The cost is in termination labor—the four DIN 47100 color-coded wires (white, yellow, green, brown for IO-Link pinout) must be landed correctly by the panel builder.

What is the difference between 6GT2891-4LN10 and 6GT2891-4MN10?

Both are 4-pole TPE-U cables at 10 meters. The -4MN10 has M12 connectors on both ends for extending an existing M12 cable run. The -4LN10 has an M12 socket at the device end and open wires at the cabinet end. Choose -4MN10 for device-to-device or patch-cord use; choose -4LN10 for direct-to-cabinet wiring.