Honeywell 51305896-200 Rev D Nim Modem Circuit Board PLC Module

Honeywell 51305896-200 Rev D Nim Modem Circuit Board PLC Module

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Description:

The Honeywell 51305896-200 is a CE-compliant I/O interface board designed to work with the EPNI (Enhanced Process Network Interface) board 51401583-100, serving as the critical link between Universal Control Network (UCN) and Local Control Network (LCN). This essential component enables seamless communication between xPM/LM nodes while maintaining point databases across networks. For Sequence of Events (SOE) time synchronization, firmware revision 'H' or later is required on the EPNI board.

As the modem paddle card in the CE NIM, this board simplifies legacy setups by consolidating functions previously handled by multiple components—including the PNM, PNM I/O, PNI I/O, and mini-coax connections. It features dual UCN network cable ports (A & B) and supports carrier-band PIN (Plant Information Network) operations, making it ideal for modern network gateway applications.

The Network Interface Module (NIM) serves as the central reference point for UCN topology, defining node-specific parameters for PMs, APMs, and other UCN devices. Typically deployed in redundant pairs, NIMs ensure high availability for mission-critical process control systems in industries like oil & gas, power generation, and chemical processing.

The 51305896-200 enhances system integration while reducing legacy hardware dependencies. Its compact, single-board design lowers maintenance complexity and improves signal integrity across UCN and LCN networks.