How Do You Keep Encoder Signals Reliable Over Long Cable Runs?

Long cable runs in oil and gas plants often expose encoder signals to electrical noise and mechanical stress. The SICK DOL-1208-G25MAC1 answers this challenge with a shielded, 25 m PUR cable that carries incremental and SSI encoder signals from an 8-pin M12 female connector to flying leads. Its shielded construction and IP67 protection rating make it a rugged choice for mission-critical feedback loops.

Key Features and Technical Specifications of the DOL-1208-G25MAC1

• Connector 1: Female M12 connector, 8-pin, straight design.
• Connector 2: Flying leads with bare wires for direct termination.
• Cable length: 25 m, as defined by the ordering code.
• Conductor specification: 4 × 2 × 0.25 mm² cable cross-section.
• Shielding: Shielded construction to limit electromagnetic interference.
• Operating temperature: −25 °C to +80 °C for flexible use and the head.
• Protection rating: IP67 when mated correctly.
• Rated current: 2 A current loading.
• Cable material: PUR, halogen-free, black, with 7 mm diameter.
• Bending radius: Flexible use > 10 × cable diameter; stationary > 5 × cable diameter; bending cycles > 2,000,000.

The combination of a 25 m length and shielded PUR jacket directly addresses voltage-drop and noise concerns in long encoder runs. Because the cable is shielded, it helps preserve signal integrity where drives and other high-power equipment are present. The 0.25 mm² conductors support the 2 A current loading, while the wide operating temperature range allows use in both cold and hot process areas.

Where This unit Fits in Oil and Gas Operations

Incremental and SSI encoders are common on valve actuators, winches, and positioners across upstream and midstream sites. This unit connects these encoders to control cabinets over a 25 m span, which reduces the need for intermediate junction boxes. Its PUR jacket resists the oils and mechanical wear often found on drilling rigs and pipeline stations. Consequently, maintenance teams can standardize on one cable for multiple encoder feedback points. The shielded design also supports reliable communication in areas with variable-frequency drives.

Installation and Setup Guidance

Route the cable away from sharp edges and high-temperature sources, and respect the bending radius limits. For flexible use, keep the bend radius above 10 times the cable diameter; for stationary installation, above 5 times. The M12 female connector should be tightened to 0.5 N·m to achieve the IP67 seal. When terminating the flying leads, follow the encoder manufacturer's wiring diagram and maintain shield continuity at the cabinet end. Because the cable is shielded, connect the shield to protective earth at one point to avoid ground loops.

Reliability and Maintenance in Demanding Environments

This unit is built for demanding environments. Its PUR jacket is halogen-free and resistant to many oils and coolants, while the TPU connector body and nickel-plated brass locking nut resist corrosion. With a bending cycle rating above 2,000,000, the cable suits applications with continuous flexing, such as moving machine parts. Periodic inspection should check for jacket abrasion, connector tightness, and shield integrity. Replacing a damaged cable early prevents intermittent encoder faults that can interrupt mission-critical processes.

Frequently Asked Questions About This unit

What is the operating temperature range of This unit?

The SICK unit is rated for −25 °C to +80 °C for flexible use and at the head.

Is This unit shielded?

Yes, the cable is shielded to help protect encoder signals from electromagnetic interference.

What is the bending radius for flexible installation?

For flexible use, the bending radius must be greater than 10 times the cable diameter; for stationary positions, greater than 5 times. The cable is rated for more than 2,000,000 bending cycles.

What is the rated current of this sensor-actuator connector cable?

The rated current is 2 A current loading.

What is the protection rating when mated?

This unit offers IP67 protection when the M12 connection is properly tightened to 0.5 N·m.

Please verify current lifecycle status and availability with PetroPartsOnline before ordering. Contact PetroPartsOnline for parts suited to your application's requirements.

{"@context": "https://schema.org", "@graph": [{"@type": "Product", "name": "DOL-1208-G25MAC1 | SICK 25 m Shielded M12 Cable", "mpn": "DOL-1208-G25MAC1", "sku": "DOL-1208-G25MAC1", "brand": {"@type": "Brand", "name": "SICK"}, "description": "How Do You Keep Encoder Signals Reliable Over Long Cable Runs? Long cable runs in oil and gas plants often expose encoder signals to electrical noise and mechanical stress. The SICK DOL-1208-G25MAC1 answers this challenge with a shielded, 25 m PUR cable that carries incremental and SSI encoder signals from an 8-pin M12 female connector to flying leads. Its shielded construction and IP67 protection rating make it a rugged choice for mission-critical feedback loops. Key Features and Technical Spec", "image": ["https://www.petropartsonline.com/wp-content/uploads/2026/10/1793124685-api_image__fp56d21ad9.jpg", "https://www.petropartsonline.com/wp-content/uploads/2026/10/1793124694-api_image__fp3eded721.jpg", "https://www.petropartsonline.com/wp-content/uploads/2026/10/1793124701-api_image__fpd2046133.jpg"]}, {"@type": "FAQPage", "mainEntity": [{"@type": "Question", "name": "How Do You Keep Encoder Signals Reliable Over Long Cable Runs?", "acceptedAnswer": {"@type": "Answer", "text": "Long cable runs in oil and gas plants often expose encoder signals to electrical noise and mechanical stress. The SICK DOL-1208-G25MAC1 answers this challenge with a shielded, 25 m PUR cable that carries incremental and SSI encoder signals from an 8-pin M12 female connector to flying leads. Its shielded construction and IP67 protection rating make it a rugged choice for mission-critical feedback loops."}}, {"@type": "Question", "name": "What is the operating temperature range of This unit?", "acceptedAnswer": {"@type": "Answer", "text": "The SICK unit is rated for −25 °C to +80 °C for flexible use and at the head."}}, {"@type": "Question", "name": "Is This unit shielded?", "acceptedAnswer": {"@type": "Answer", "text": "Yes, the cable is shielded to help protect encoder signals from electromagnetic interference."}}, {"@type": "Question", "name": "What is the bending radius for flexible installation?", "acceptedAnswer": {"@type": "Answer", "text": "For flexible use, the bending radius must be greater than 10 times the cable diameter; for stationary positions, greater than 5 times. The cable is rated for more than 2,000,000 bending cycles."}}, {"@type": "Question", "name": "What is the rated current of this sensor-actuator connector cable?", "acceptedAnswer": {"@type": "Answer", "text": "The rated current is 2 A current loading."}}, {"@type": "Question", "name": "What is the protection rating when mated?", "acceptedAnswer": {"@type": "Answer", "text": "This unit offers IP67 protection when the M12 connection is properly tightened to 0.5 N·m. Please verify current lifecycle status and availability with PetroPartsOnline before ordering. Contact PetroPartsOnline for parts suited to your application's requirements."}}]}]}