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Payload Mounting Interfaces

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Last updated 3 months ago

Smart Dovetail

Smart Dovetail is a payload quick release with mechanical connection and electrical connections for power and data. It's an open standard that implements the .

Smart Dovetail is not hotswap compatible. To avoid damaging Astro or your sensor, please power off the aircraft before attaching or removing a Smart Dovetail payload.

CAD

This model contains the entire smart dovetail assembly. You are welcome an encouraged to use this model to Integrate Smart Dovetail into your payload! This also serves as the reference design for the Pixhawk Payload Bus Quick Release.

BOM and Gerber files

Revision
Description
Date

Alpha

Initial design release

11/12/2021

Beta

Complete model released

3/24/2022

Production

Available in store

6/17/2022

Pinout

Plate KEL

Smart Dovetail Plate uses KEL DY11-040L to connect with the Aircraft side. Integrate this connector into your payload (e.g. for mass production).

Plate ZPD

VBAT is on the IO Panel bus, which includes the XT30, and is protected at 5 A.

Max current per pin is 2 A.

Available Products

Limitations

No hotswap protection. Do not mate or demate Smart Dovetail while the aircraft is powered.

If the payload has even modest capacitance or other inrush current the connector contacts on both aircraft and payload side will be eroded.

Astro Vibration Isolator

Pinout is defined in the standard doc. See page 9 for pinout table and pin identification diagram.

Smart Dovetail Plate offers a connector for payloads. The pinout nominally matches the .

The mating connector needed to build a payload cable is .

If you need camera trigger or capture feedback on the Payload Adaptor ZPD connect, remove the PCBA from the housing and connect a 0 ohm resistor to R5 for trigger, and to R2 for the capture pin. Pins 24 (capture) and 26 (trigger) can then be used. If you need help configuring Astro to use these pins for your payload, reach out to our .

Not all ZPD pins are implemented. Power, ethernet, serial, and usb are present. Please let us know if unimplemented pins are blocking you: .

Hard-mounting to Astro chassis requires standoffs ( included in the kit). The requirement is due to interference between the cable bundle and Herelink Air Unit.

The is designed to be adaptable. By default, it comes preconfigured to work best with the , and it ships with 4 x 30A durometer isolators. Our engineering team decided this is the best configuration based on real-world testing.

Isolator plates allow up to 8 isolators. Different durometers to the Astro , which include 30A, 40A, and 50A options.

Pixhawk Payload Bus
ZPDR-26V-S
support team
Full Dovetail Kit
Airside Receiver
Payload Adapter
support@freeflysystems.com
M3 male-female, 8mm length
Astro Vibration Isolator
Astro Mapping Payload
store
Pixhawk Payload Bus
ZPDR-26V-S JST
Astro Payload Connector
21MB
Assembly Smart Dovetail Quick Release 3-24-2022.STEP
1MB
840-00245-pcba-dovetail-passthrough-revC.zip
archive
Payload Adaptor ZPD