Boat NMEA buffer WaveBridge

Overview
The WaveBridge Buffer repeats NMEA 0183 feeds to multiple isolated outputs for reliable distribution to navigation receivers and instruments. Two models are available: SMB1X10 (single NMEA input with multiple outputs) and SM2X9 (dual inputs with automatic failover and alarm contact). Designed for marine and vessel electronics integration, with DIN‑rail or wall mounting.

Models

• SMB1X10: one galvanically isolated NMEA 0183 input replicated to ten galvanically isolated RS422 outputs plus one RS232 output.
• SM2X9: two galvanically isolated NMEA 0183 inputs, automatic failover to the standby source within 2 s and distribution to nine galvanically isolated RS422 outputs; includes alarm contact when both inputs fail and an external selector (Auto / Input‑1 / Input‑2).

Key benefits

• Automatic failover between two NMEA 0183 sources (SM2X9) with immediate return to INPUT‑1 on recovery.
• Galvanically isolated outputs protect the source from faulty listeners and prevent faults propagating between outputs.
• Choice of single or dual input topologies: SMB1X10 supplies ten RS422 outputs plus RS232, SM2X9 supplies nine RS422 outputs with monitoring and alarm.
• Alarm contact and external selector for operational control and status signalling.
• Main and emergency isolated 12–36 V DC supplies with automatic polarity correction; independent inputs for redundancy.
• DIN‑rail mounting and wall‑mount adapter for flexible installation in equipment racks or cabinets.

System Specifications
Data inputs | 2 × galvanically isolated NMEA 0183 inputs
Outputs | 9 × galvanically isolated RS422 outputs (SM2X9); SMB1X10 provides 10 RS422 + 1 RS232
Failover | INPUT‑1 → INPUT‑2 in 2 s; immediate return to INPUT‑1 on recovery
Alarm output | COM / NO / NC contact changes state when both inputs fail
Input selector | External switch: Auto / Input‑1 / Input‑2
Output current | 60 mA continuous per output
Baud rate | 300 bps to 250 kbps
Supply | Main and emergency isolated 12–36 V DC inputs; 200 mA at 24 V
Temperature | −20 °C to +80 °C operating; −55 °C to +85 °C storage
Dimensions | 91 × 108 × 33.5 mm

Interfaces & Integration
Compatibility | RS422, RS485 and RS232
Connectors | 8‑pole pluggable 5.08 mm pitch screw terminals
Mounting | Built‑in DIN‑rail connection and wall‑mount adapter
Indicators | Four status LEDs for power, both inputs and the output
Polarity correction | Bus polarity corrected automatically in 76 ms
Input protection | ±16 kV HBM and ±12 kV IEC 61000‑4‑2 contact discharge; −18 V to +18 V maximum
Standards | EN 60945, IEC 61162‑1 C4, IEC 61162‑2 (high‑speed)
Typical use | Distribution of duplicated gyro, GPS or speed‑log feeds where listeners must not miss data

What's included

• 1 × WaveBridge Buffer unit: SMB1X10 (single input) or SM2X9 (dual input) with DIN‑rail connection and wall‑mount adapter.
• 1 × External input selector switch (Auto / Input‑1 / Input‑2).
• 1 × Terminal connector set: 8‑pole pluggable 5.08 mm screw terminals for inputs, outputs, alarm contact and supplies.
• Documentation: quick‑start card and digital installation manual.

Technical specifications

• Data inputs: 2 × galvanically isolated NMEA 0183 inputs.
• Outputs: 9 × galvanically isolated RS422 outputs (SM2X9); SMB1X10 provides 10 RS422 outputs plus RS232.
• Failover: automatic INPUT‑1 → INPUT‑2 in 2 s; immediate return to INPUT‑1 on recovery.
• Alarm output: COM / NO / NC contact changes state when both inputs fail.
• Input selector: external switch (Auto / Input‑1 / Input‑2).
• Output current: 60 mA continuous per output.
• Baud rate: 300 bps to 250 kbps.
• Supply: main and emergency isolated inputs 12–36 V DC; 200 mA at 24 V.
• Temperature range: −20 °C to +80 °C operating; −55 °C to +85 °C storage.
• Dimensions: 91 × 108 × 33.5 mm.
• Connectors: 8P pluggable 5.08 mm pitch screw terminals.
• Mounting: DIN‑rail and wall‑mount adapter.
• Indicators: four status LEDs (power, input1, input2, output).
• Polarity correction: automatic bus polarity correction in 76 ms.
• Input protection: ±16 kV HBM and ±12 kV IEC 61000‑4‑2 contact discharge; −18 V to +18 V maximum.
• Standards: EN 60945, IEC 61162‑1 C4, IEC 61162‑2 (high‑speed).