[Main](/) ❯ [Navigation & tracking systems](/navigation_and_tracking_systems_en) ❯ **Zima2-SL: Device specification**

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| ![logo](/documentation/sm_logo.png) | ![zima2_sl](PENDING) | | :---: | ---: | | [www.unavlab.com](https://www.unavlab.com/)
[support@unavlab.com](mailto:support@unavlab.com) | **Zima2-SL** — solver of the **Zima2 LBL** navigation system
Device specification | ## KEY FEATURES * **Position calculation from ranges to beacons with known coordinates** * **Storage of beacon coordinates (up to 4)** * **GNSS protocol emulation (GGA, RMC, MTW)** for the data consumer * **Communication with Zima2-LX over 3.3 V UART** * **Compact board that can be placed underwater or on the surface** * **Configuration via the [PAZM](Zima2_Protocol_Specification_en.md) protocol** ## DESCRIPTION **Zima2-SL** is the computing module (solver) of the long baseline navigation system [Zima2 LBL](/documentation/EN/Zima/Zima2_LBL_DataBrief_en.md). The module receives over UART the measured range data from the [Zima2-LX](/documentation/EN/Zima/Zima2LX_Specification_en.md) transceiver, stores the coordinates of the [Zima2-R](Zima2R_Specification_en.md) responder-beacons and calculates its own position. The result is output to the data consumer in the form of standard GNSS sentences (**GGA**, **RMC**, **MTW**), which allows **Zima2-SL** to be used as a "transparent" replacement for a GNSS receiver in existing systems. The module can be placed either underwater or on the surface, depending on the task to be solved. ________________

## TECHNICAL SPECIFICATIONS | PARAMETER | VALUE | | :--- | :--- | | DIMENSIONS (Ø x h) | PENDING | | WEIGHT | PENDING | | SUPPLY VOLTAGE | 12 V | | DATA LINE VOLTAGE | 0 .. 3.3 V | | INTERFACE WITH Zima2-LX | UART 9600 bit/s | | INTERFACE WITH THE DATA CONSUMER | UART 9600 bit/s | | CONFIGURATION PROTOCOL | NMEA 0183 [PAZM](Zima2_Protocol_Specification_en.md) | | EMULATED GNSS SENTENCES | GGA, RMC, MTW | | OPERATING TEMPERATURE RANGE | PENDING | | POWER CONSUMPTION | PENDING | | MAXIMUM POSITION UPDATE RATE^{[1](#footnote1)} | PENDING | | NOMINAL POSITIONING ACCURACY (RMS)^{[2](#footnote2)} | PENDING | ________________ - ¹ Determined by the speed of sequential interrogation of the beacons by the [Zima2-LX](/documentation/EN/Zima/Zima2LX_Specification_en.md) transceiver and by the number of beacons in the set. - ² PENDING.