Foxboro FCP280 RH924WA Fiber Optic Network Adapter

Configured for high-speed deterministic fieldbus routing and optical noise immunity in Foxboro DCS architectures, the Foxboro FCP280 RH924WA (RH924WA Fiber Optic Network Adapter) provides direct physical/electrical execution.

Hardware Specifications

Cold Junction Compensation & 4-20 mA HART Loop Protocols

The FCP280 RH924WA optical interface adapter provides high-bandwidth fiber optic isolation to shield control networks from industrial ground loops and intense electromagnetic interference. Supporting 4 Gbps deterministic throughput, the module handles continuous high-density I/O traffic from analog 4-20 mA HART loops and process instruments without network transmission latencies. Built-in optical isolation guarantees channel-to-channel noise rejection while sustaining high-integrity communications across distributed plant-wide DCS nodes.

Frequently Asked Questions

Q: What are the maximum optical fiber link distances supported by the RH924WA network adapter?

A: The adapter supports link distances up to 2 km when using single-mode fiber (SMF) optic lines, and up to 500 m when configured with multimode fiber (MMF) optic lines.

Q: What power consumption and redundancy parameters apply to FCP280 controller pairs with RH924WA adapters?

A: The module operates on dual redundant 24 VDC inputs, consuming up to 11 W for a simplex controller setup and up to 20 W for a fault-tolerant redundant paired controller setup.

Q: Is the RH924WA adapter qualified for deployment in highly corrosive chemical plant environments?

A: Yes, the unit carries an ISA Class G3 conformal coating certification, allowing reliable operation across severe corrosive atmospheric environments from -40 deg C to 70 deg C.

Field Installation Guidelines

• Mount the network adapter securely onto the dedicated FCP280 controller baseplate slot, ensuring card retainers engage to lock the backplane electrical connection.

• Connect redundant 24 VDC power feeds from isolated DC power supplies using copper wiring rated for minimum 75 deg C operating conditions.

• Clean optical fiber cable ends prior to insertion into SC or LC transceiver ports, enforcing minimum fiber bend radius guidelines to eliminate optical signal attenuation.

• Secure the primary baseplate chassis grounding lug directly to the enclosure earth bus bar using a heavy gauge copper conductor to maximize surge voltage protection and EMC compliance.