The Siemens 6GT2891-0MN10 is a pre-assembled IO-Link connecting cable from the SIMATIC RF family, purpose-built to link an IO-Link master to an IO-Link reader or sensor. Both ends terminate in M12 4-pin straight connectors — male on one side, female on the other — so it drops into a standard M12 port without adapters. Rated for 30 V maximum and 10 m length, this 4-core unshielded cable uses PVC wire insulation with a black PUR sheath. The 10 m reach covers typical machine-cell distances between the control cabinet and a read/write head or smart sensor on a conveyor line.
The 30 V maximum is the cable's voltage rating, not a signal level — it comfortably handles the 24 VDC supply typical of IO-Link ports (which operate at 24 V nominal per IO-Link spec) while leaving headroom for short transients. The 10 m length is the total cable run; IO-Link supports cable runs up to 20 m at standard baud rates, so this cable stays well within protocol limits without signal degradation. Loop resistance is 108 mΩ/m maximum, which at 10 m gives roughly 1.08 Ω per conductor. For a 24 V IO-Link device drawing 200 mA, the voltage drop across the cable is under 0.22 V — negligible for port operation. The insulation resistance coefficient of 20 GΩ·m confirms the dielectric quality for industrial environments. Temperature range covers -5 to +80 °C during operation and -40 to +80 °C during storage and transport. That suits most indoor factory-floor conditions and unheated storage. The burning-behaviour rating — flame resistant per AWM STYLE 21317 VW-1 (USA) and AWM I/II A/B FT-1 (Canada) — means the cable self-extinguishes and won't propagate flame along a wireway, which matters for UL-listed panels.
The cable is not halogen-free and carries no UL/ETL 300 V rating — it is rated for 30 V and intended for IO-Link signal and power, not line-voltage wiring. Verify that your local code accepts the AWM flame rating for the cable tray or enclosure path.
Both M12 connectors are straight, 4-pin, with the pinout following the standard IO-Link wiring: brown (pin 1, 24 V), white (pin 2, not used or digital out), blue (pin 3, GND), black (pin 4, IO-Link data). The 4-core cable designation LiY-11Y 4xAWG 22/19 gives a compact 22 AWG stranded conductor — flexible enough for cable-carrier routing but best kept away from sharp edges. Minimum bend radius with single bend is 34.4 mm; with multiple bends, 64.5 mm. Unshielded construction means this cable is fine for IO-Link communication in electrically quiet environments or where the master and sensor are within the same panel. For runs near VFD output cables or welding supplies, a shielded M12 cable would be a better choice.