490NRP95400 Schneider Modicon Quantum Datasheet & Technical Manual

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Schneider 490NRP95400 Modicon Remote I/O Fiber Optic Repeater The Schneider 490NRP95400, also cataloged as the 490NRP95400 Fiber Optic Repeater, operates...

SKU: 490NRP95400

Manufacturer: Schneider
Product No.: 490NRP95400
Product Type: Optical Ring Switch Modules
Product Origin: France
Payment:T/T, Western Union
Weight: 1810g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Schneider 490NRP95400 Modicon Remote I/O Fiber Optic Repeater

The Schneider 490NRP95400, also cataloged as the 490NRP95400 Fiber Optic Repeater, operates as a dedicated hardware component for remote line drop data transmission within Modicon Quantum Remote I/O networks. The module executes physical conversion between electrical coax baseband signals and optical waveforms, maintaining signal profile integrity across extended point-to-point drop or ring topologies. By driving Manchester encoded bit streams over glass fiber media, the hardware enforces galvanic isolation boundaries between distributed chassis nodes and central processing hubs.

Hardware Specifications

Parameter	Specification
Model	490NRP95400
Brand	Schneider Electric
Origin	France
Weight	1.81 kg (4.00 lbs) nominal / 2.14 kg package weight
Dimensions	6 cm x 21.7 cm x 28.8 cm
Operating Temp	0 to 60 deg C
Storage Temp	-40 to +85 deg C
Power Consumption	Dual capability 115/230 V AC or 24 V DC configuration options
Data Rate	1.544 Mbit/sec for standard Remote I/O / Supports 10 Mbps optical ring modes
Signal Encoding	Manchester encoded data structures
Electrical Interface	Remote I/O via standard F Connector
Optical Interface	ST-type connectors
Topology Support	Bus and Line Drop, Redundant Ring architectures
Node Capacity	Supports up to 31 remote I/O drops
Protection Class	IP20

Profinet / EtherNet/IP Deterministic Networks and I/O Density Scaling

The Schneider 490NRP95400 acts as a deterministic media converter, processing serial bit sequences at a fixed data rate of 1.544 Mbit/sec or 10 Mbps without causing variable software stack propagation delays. The internal transceiver pipeline maintains stable data timing under full load, operating independently of backplane bus communication velocity licenses.

When modernizing architectures toward Profinet / EtherNet/IP deterministic networks, these passive repeaters shield the electrical drops from ground loops and electromagnetic interference. The module layout supports broad I/O density scaling profiles, enabling up to 31 distributed racks to return complex variable tables back to the master processor over thousands of meters without signal attenuation or frame timeouts.

Frequently Asked Questions

Q: Does the 490NRP95400 require custom firmware flash compatibility adjustments to switch between electrical and optical modes?

A: No. The hardware functions at physical layer 1 of the OSI protocol model. The electrical-to-optical conversion is purely parametric and component-driven, meaning it processes incoming Manchester data streams instantaneously without requiring internal software routines or parameter scripting.

Q: What are the consequences of removing or plugging the optical ST-type connectors while the remote drop link is active?

A: Unplugging the ST-type connectors breaks the fiber communication link, causing an immediate link drop fault on that branch of the network. If configured in a non-redundant line drop layout, the master CPU will instantly register a loss of communication with all subsequent downstream nodes.

Q: How does the repeater handle power supply selection between AC and DC input ranges?

A: The hardware contains dedicated hardware link configurations on the internal terminal board to select between the nominal 115/230 V AC utility connection or the 24 V DC plant battery source. Applying mismatched power ranges outside of the designated terminal layout will result in permanent destruction of the input transformer stages.

Field Installation Guidelines

Isolate all primary AC and DC power distribution points before mounting the repeater assembly inside the enclosure panel.
Install the housing using the designated fixing screw patterns on a structural panel or shelf, verifying the orientation allows vertical convective cooling airflow.
Connect clean ST-type fiber optic terminations to the receive (RX) and transmit (TX) ports, ensuring the bend radius of the optical cable stays within specified limits to prevent attenuation.
Tighten the coaxial F connector assembly on the electrical interface port to prevent grounding fluctuations or noise injection on the copper line segment.
Attach a low-impedance ground bonding conductor from the repeater grounding terminal directly to the enclosure main ground plate to suppress electrostatic transient buildup.

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