PLCs, Power Supplies & Others

The Schneider 490NOR00003 provides high-speed fiber optic connectivity for Modicon Quantum remote I/O networks. This duplex fiber optic cable enables reliable communication between control processors and distributed I/O drops over extended distances.

Key Technical Specifications

Duplex Multimode Construction

The Schneider 490NOR00003 utilizes 62.5/125 µm multimode fiber with dual independent strands for transmit and receive paths. This duplex configuration supports full-bandwidth communication without data collisions or timing delays.

Each fiber strand includes tight-buffered construction for enhanced mechanical durability. Industrial environments with continuous vibration benefit from this robust cable design.

ST Connector Interface

This cable assembly features ST style bayonet connectors at both ends, the standard interface for Quantum remote I/O networks. The bayonet locking mechanism provides secure retention while allowing rapid disconnect for maintenance.

Ceramic ferrule construction ensures precise fiber alignment and minimal insertion loss. Typical connection loss measures below 0.5 dB per mated pair.

Mechanical Design and Flexibility

Measuring 3 meters in length, the 490NOR00003 suits control cabinet installations with moderate separation distances. The PVC outer jacket resists industrial oils, coolants, and mild chemicals commonly present on factory floors.

Orange jacketing provides immediate visual identification as fiber optic cabling. This color coding prevents accidental disconnection or confusion with copper Ethernet cabling during maintenance activities.

System Compatibility and Integration

Schneider engineered the 490NOR00003 specifically for Modicon Quantum remote I/O networks. The cable connects 140NRP31100 and 140NRP31200 fiber optic modules to remote I/O drops, extending control beyond copper distance limitations.

Compatible head-end modules include 140CRP93100, 140CRP93200, and 140CRA93100 adapters. The ST interface ensures consistent optical performance across all Quantum fiber optic products.

Distance Extension Capability

Multimode fiber optic cabling eliminates the 200-meter distance limitation of copper remote I/O networks. The 490NOR00003 serves as the final link segment within installations spanning up to 3 kilometers total fiber length.

This distance capability enables distributed control architectures across large facilities. Engineers locate I/O racks adjacent to field equipment while maintaining centralized processing.

Optical Performance Characteristics

The 62.5/125 µm fiber exhibits maximum attenuation of 3.5 dB per kilometer at 850 nm wavelength. This low signal loss maintains reliable communication across extended cable runs without repeater modules.

Typical Quantum fiber optic transmitters launch -16 dBm optical power. The 490NOR00003 preserves sufficient signal margin for reliable receiver detection throughout the specified operating temperature range.

Installation and Bend Radius

Minimum bend radius measures 30 mm for long-term installation and 15 mm for short-term pulls. Installers should avoid exceeding these limits during cable routing to prevent microcracking and optical attenuation increase.

The flexible PVC jacket accommodates routing through wireways, conduit, and cable tray systems. Pre-terminated connectors eliminate field termination requirements and associated skill certifications.

Application Versatility

Industrial facilities deploy the Schneider 490NOR00003 across numerous Quantum networking applications. Typical implementations include processor-to-remote I/O connections, inter-panel communication links, and distributed control system backbones.

The 3-meter length suits same-cabinet connections between adjacent modules. Multiple 490NOR00003 cables connect through bulkhead adapters for longer distances using plant fiber infrastructure.

Immunity and Noise Rejection

Fiber optic transmission provides complete electrical isolation between connected devices. The 490NOR00003 carries no metallic conductors, eliminating ground loops and protecting against induced voltage transients.

This noise immunity proves essential in high-interference environments. Variable frequency drives, welding equipment, and large motor starters do not affect fiber optic communication reliability.

Replacement and Spare Parts Management

The 490NOR00003 remains an active spare part for installed Quantum systems. Facilities maintaining legacy automation assets should stock this cable for emergency replacement scenarios.

Each cable undergoes individual optical testing before shipment. Factory termination ensures consistent insertion loss and return loss performance across all production batches.

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