Multi-Media Card
(MMC)/SD Slot
Your 900 Series™ Fishing System also has a
illustration to locate the position of the MMC/SD slot cover, remove the MMC/SD slot cover, then insert the MMC/SD into the slot. The label on the MMC/SD should face toward the left side of the unit. Press down on the card until it clicks into place and replace the slot cover. Then, replace and tighten snugly - do NOT overtighten, as this will not improve water resistance, and may damage the cover.
Software Updates
Use the MMC/SD slot to update the software version of your control head. To update the software in your control head, plug in the appropriate MMC/SD card that contains a software update file; the unit will recognize it, will tell you what software version your control head is currently running, and will ask you if you want to update the software in the unit to match that on the MMC/SD card. You can obtain software updates from the www.humminbird.com website.
Accessory Bus
Use the Accessory Bus to expand the functionality of your 900 Series™. Accessories plug directly into the 900 Series™, enabling Advanced features such as WeatherSense® and the SmartCast® Wireless Sonar Link. Additional tabs and menu choices will be added to the menu system automatically when
Accessory Bus an accessory is plugged into the unit. In addition, multiple accessories can be attached simultaneously. See Accessories Menu Tab and 900 Series™ Accessories in this manual, as well as your accessory Operations Manual for additional details.
NOTE: Accessories to enable WeatherSense® and the SmartCast® Wireless Sonar Link require separate purchases. You can visit our website at www.humminbird.com or contact our Customer Resource Center at
Installation Overview
Please read all instructions that are relevant for your configuration before beginning the installation process.
NOTE: Installation procedures will depend on product configuration.
5