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GOMspace NanoUtil AR6 Manual

Antenna release mechanism
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NanoUtil
AR6
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NanoUtil Antenna Release Mechanism

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Summary of Contents for GOMspace NanoUtil AR6

  • Page 1 NanoUtil Manual NanoUtil Antenna Release Mechanism...

  • Page 2: Table Of Contents

    ......... 5 Disclaimer Copyright © 2013-2018 GomSpace A/S. All rights reserved.

  • Page 3: Changelog

    AR6 Manual 21 February 2018 gs-man-nanoutil-ar6-3.1.0-19-gb4d5423+ 1. Changelog Table 1.1: Changelog Date Description Revision Author Description 23/01-2018 3.1.0 JESM/ANM First release Copyright © 2013-2018 GomSpace A/S. All rights reserved.

  • Page 4: Introduction

    2. Introduction The primary function of the GomSpace NanoUtil AR6 is to provide a release mechanism for VHF antennas in GomSpaces 6U structure. The AR6 is placed on the 6U side of a structure. On each side, there are four slots allocated for the AR6’es. All can be set in series through the connectors on the PCB.

  • Page 5: Hardware

    3.1 Mounting This section describes how to mount the AR6 on the 6U nanosatellite structure. 3.1.1 Standard Tightening Torque for Screws Below is shown a table for GomSpace suggested standard tightening torque for screws. Screw Diameter [mm] Torque [Nm] 3.1.2 Mounting the AR6 on the NanoStructure 6U The AR6 is placed on the 6U side of a structure.
  • Page 6 PCB will be covered from the outside by solar panels. Fig.3.3 Fig.3.4 show an AR6 mounted in a 6U structure. Fig. 3.3: AR6 mounted in the 6U structure (top) Fig. 3.4: AR6 mounted in the 6U structure (bottom) Copyright © 2013-2018 GomSpace A/S. All rights reserved.

  • Page 7: Software

    21 February 2018 gs-man-nanoutil-ar6-3.1.0-19-gb4d5423+ 4. Software The NanoUtil AR6 is intented to be used together with the libgssb software library. A part of libgssb comes with the AR6. It implements the GSSB protocol and functions on top of a layer.

  • Page 8: Interfaces

    The AR6 is a GSRB/GSSB compatible device. It uses GSRB (GomSpace Release Bus) over , which is a variant of GSSB (GomSpace Sensor Bus). The bus carries the supply for AR6 in form of GND and 3.3 V and the two signals SDA and SCL are used for communication.
  • Page 9 The max burn duration is 10 seconds. Setting a wrong max burn duration can damage the resistors used on the thermal knifes or ICs on the PCB. If in doubt, contact GomSpace Support. Copyright © 2013-2018 GomSpace A/S. All rights reserved.

  • Page 10: Ar6 Client Api

    AR6 Client API. The AR6 API header is shown below: #ifndef _GS_GSSB_AR6_H_ #define _GS_GSSB_AR6_H_ #include <gs/gssb/gssb_dev.h> / ** Get ar6 internal temperature. Gets the ar6 temperature inside MCU. Copyright © 2013-2018 GomSpace A/S. All rights reserved.
  • Page 11 @param[out] channel_status Pointer to backup status. gs_error_t gs_gssb_ar6_get_backup_status(uint8_t addr, uint16_t timeout_ms, gs_gssb_ backup_status_t backup_status); / ** Get ar6 board status. Gets the ar6 board status. It tells reboot count. It tells uptime. Copyright © 2013-2018 GomSpace A/S. All rights reserved.
  • Page 12 / ** Reset ar6 counters. Resets burn counters and reboot counter on ar6. @param[in] addr I2C address. @param[in] timeout_ms Timeout in milliseconds. @param[out] settings Pointer to settings. gs_error_t gs_gssb_ar6_reset_count(uint8_t addr, uint16_t timeout_ms); #endif Copyright © 2013-2018 GomSpace A/S. All rights reserved.

  • Page 13: Disclaimer

    GomSpace. GomSpace assumes no responsibility for any errors that may appear in this document. In no event shall GomSpace be liable for incidental or consequential damages arising from use of this document or the software and hardware described in this document.

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