Technical Specifications

Part Number: 51304362-300 (51304362300)

Alternate Model: MU-PSIM11

Channel Count: 2 isolated serial channels

Interface Standards: EIA-232 (RS-232), EIA-422 (RS-422), EIA-485 (RS-485)

Baud Rate: 300–115.2 kbps (per-channel configurable)

Data Format: 7/8 data bits, 1/2 stop bits, odd/even/no parity

Isolation: 250Vrms channel-to-channel; 500Vrms field-to-backplane

Power Supply: 24VDC ±10%, 5–7W typical

Operating Temperature: -40°C to +70°C

Storage Temperature: -55°C to +85°C

Humidity: 5%–95% RH, non-condensing

Dimensions (H×W×D): 308 × 120 × 35 mm

Weight: 0.58 kg (1.28 lbs)

Certifications: CE, UL, RoHS (conformally coated for harsh environments)

Interface & Communication Configuration

Field Interface: Dual DB25 ports (or compression ports) for direct serial device wiring; compatible with Honeywell FTA (Field Terminal Assembly)

System Interface: Dedicated UCN backplane connector for high-speed controller communication

Communication Protocol: Honeywell UCN (Universal Control Network), 1Mbps data rate

Supported Protocols: ASCII, Modbus RTU/ASCII, and custom serial protocols (configurable via system software)

Diagnostics: On-board LEDs for power, run, fault, and communication status; real-time reporting of framing/parity errors and timeouts

Redundancy: Not supported (single-module operation only)

Core Functions

2-Channel Serial Data Bridging: Connects DCS controllers to third-party serial devices via RS-232/422/485.

Multi-Protocol Support: Handles ASCII, Modbus RTU/ASCII, and custom protocols for flexible device integration.

Electrical Isolation: Provides 250Vrms channel isolation to suppress noise and ground loops in industrial environments.

High-Speed Data Transfer: Supports baud rates up to 115.2 kbps for low-latency real-time data exchange.

Comprehensive Diagnostics: Detects and reports communication errors (framing, parity, timeout) for quick troubleshooting.

Conformal Coating: Protected against dust, moisture, and chemical vapors for reliable operation in harsh conditions.

Application Scenarios

Process Industries: Chemical, petrochemical, oil & gas, power generation, pulp & paper, pharmaceuticals, water treatment.

Third-Party Device Integration: Connects DCS to PLCs, flow meters, gas analyzers, temperature controllers, and serial printers.

Legacy System Upgrades: Interfaces older serial devices with modern Honeywell TDC3000/TPS/Experion PKS DCS.

Data Logging & Printing: Enables DCS to send process data to serial printers or loggers for record-keeping.