One talker in. Every listener fed, on one input or two.
WaveBridge Buffer repeats one NMEA 0183 talker across galvanically isolated outputs, in two models. The single-input model drives ten RS422 outputs and one RS232 output. The dual-input model watches two sources and feeds nine RS422 outputs, switching to the standby within two seconds and closing an alarm contact if both inputs go quiet.
When one input stops, the other carries on.
Failover without intervention
Both inputs are watched continuously. If the live one stops, the unit changes over to the standby source and the outputs keep carrying data.
Main and emergency supply
The unit runs from two independent feeds, so when one supply is unavailable the other keeps the distribution unit itself alive.
Reported, not silent
If both inputs fail the alarm output changes state instead of the data simply stopping, and the selector beside it decides whether the source is chosen automatically or by hand.
Key Benefits
Automatic failover between two NMEA 0183 inputs in two seconds, on the dual-input model.
Ten isolated RS422 outputs plus RS232 on the single-input model, nine on the dual-input model.
Alarm contact when both inputs fail, with Auto, Input-1 and Input-2 selection.
Main and emergency supplies with automatic bus polarity correction.
Redundancy built into the line
Uninterrupted signal flow.
WaveBridge Buffer protects the talker from its listeners: every output is galvanically isolated, so a short or a faulty device stays on its own line. Choose the single-input model for ten RS422 outputs plus RS232, or the dual-input model for redundancy across nine RS422 outputs.
System Specifications
Data inputs | 2 × galvanically isolated NMEA 0183 inputs
Outputs | 9 × galvanically isolated RS422 outputs
Failover | INPUT-1 to INPUT-2 in two seconds, return to INPUT-1 immediately
Alarm output | COM / NO / NC contact, changes state when both inputs fail
Input selector | External switch for Auto, Input-1 or Input-2
Output current | 60 mA continuous per output
Baud rate | 300 bps to 250 kbps
Supply | Main and emergency 12–36 V DC isolated 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 | 8P 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 and IEC 61162-2 high-speed data
Typical use | Duplicated gyro, GPS or speed-log feeds where the listener side must not lose data
WaveBridge Buffer System Includes
1 × Line Splitter Unit
WaveBridge Buffer, SMB1X10 (single input) or SM2X9 (dual input), with built-in DIN rail connection and wall mount adapter
1 × Input Selector Switch
External switch for Auto, Input-1 and Input-2 selection
1 × Terminal Connector Set
8P pluggable 5.08 mm screw terminals for both inputs, the nine outputs, the alarm contact and both supplies
Also supplied
Quick-start card, digital-manual QR card and the installation manual
Keep the Signal on Every Output
Duplicated gyro, GPS or speed-log feeds where the listener side must not lose data.
