Harness document

Flight Preparation Panel

Connector for charging and and debugging will be placed on a sidepanel PCB together with the remove-before-flight pins.

1,2 (OBC_TX, OBC_RX) RS-232 Debug interface for OBC on pins

3,4 (CANH, CANL) CAN on pins

5,6 (GND, V+) Charging connector directly to battery on pins

7,8 (GND, V+) Solar panel connector on pins

Connector pin map: TBD

1 3 5 7

2 4 6 8

4 remove-before-flight jumpers:

Antenna safety pin

Remove before flight

Kill switch

Solar panel deployment safety pin

Stack Connector

Stack connector: 18 pin double-row PC-104 connector (2.54mm pitch)

1 - CANH

2 - OBC_TX

3 - CANL

4 - OBC_RX

5 - ADCS GND

6 - ADCS 5V

7 - ADCS GND

8 - ADCS 5V

9 - P/L GND

10 - P/L 5V

11 - P/L GND

12 - P/L 3V3

13 - OBC GND

14 - OBC 3V3

15 - COM GND

16 - COM 3V3

17 - COM GND

18 - COM 3V3

Footprint pin map relative to PCB:

Center of pin 1 placed at (x=2.352mm,y=-27.264mm) measured from the board outline.

NOTE: The Stack Connector in the library has center of component in the center of pin1, and therefore the coordinates above can be used directly as the component x,y coordinates. Remember to set the origin before placing the connector.

Please see the stack connector placement PCBDoc for precise placement of stack connector and stack connector PCB library for stack connector footprint: Stack connector placement PCBDoc

Stack connector PCB library

(0,0)           Y, Sidepanel D
  .___     ________________________     __
  |/  |___|                        |___|  \ 
  /     O                            O     \
  |17..18                                  |
  |15..16                                  |
  |13..14                                  |
  |11..12                                  |
  | 9..10                                  |
  | 7..8                                   |
  | 5..6                                   |
  | 3..4                                   |
  | 1..2                                   |
  |                                        |
  |                                        |
X | Sidepanel A                            |
  |                                        | 
  |                                        |   
  |                                        |  
  |                                        |  
  |                                        |  
  \    _O_                          _O_    /
   \__|   |________________________|   |__/

-=ADCS=- Connectors to side panels: TBD

-=Solar Panel Connectors=- One connector from each side to EPS board.

Wires are soldered to the solar panels and connected to EPS with a 2 pin connector TBD.

Antenna Connector

MMCX snap lock connector placed on radio or COM board.

Cable: 2 mm thick 50 Ohm coax connected to antenna panel with MMCX connector.