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Surface Inductive Modem (SIM)
The Surface Inductive Modem (SIM) is a vital link in Sea-Bird’s inductive modem (IM) telemetry systems, which provide data communications without the need for underwater electrical connections. The SIM provides the link between the underwater IM instruments and the computer / buoy controller. Communication with the computer / buoy controller is via RS-232. SIM-Direct is for typical cable-to-shore applications, where the inductive modem wire is insulated above the surface and connected to the SIM. A second wire from the SIM connects directly to seawater ground. SIM-Coupled is useful for buoy applications, where the jacketed wire is grounded to seawater on each end and connected to the SIM via an Inductive Cable Coupler (ICC).
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Key Features
- Communication link between SIM and underwater IM is half-duplex, so talking and listening is sequential.
- SIM and user’s computer/controller communicate at 1200, 2400, 4800, or 9600 baud; SIM and underwater IM communicate at 1200 baud.
- Sea-Bird’s field-proven IM telemetry, with more than 3000 Sea-Bird IM instruments deployed since 1997.
- Five-year limited warranty
Specifications
| Specification | Value |
|---|---|
| Communication Options | RS-232 |
| Power Consumption | 7-25 VDC, 30 mA |
Accessories
Curious what accessories and spares you can purchase for the Surface Inductive Modem (SIM)? Get in touch with our experts for more information.
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