GPIO (pin of work start ?)

[ctoutmoi]

Hi,
I would like a confirmation. I want to use the signal 'work start' on the GPIO connector for controlling the air base. The technical documentation is not updated, what is the allocation of pins because now there are more than 4 pins instead of 5.

1 = Gnd
2 = ?
3 = ?
4 = +VCC 5V

(I always measure a high level on pins 2 and 3 even when the work start )
Thanks

[maralb]

I have connected Solid State Relay to pin the +5V VCC out and connector number 3.
you must activate the function If blowing in the setup of the card

[ctoutmoi]

I have activated the function "if blowing" but I still have a high signal on pin #3.
I've always the message "write error" but I can change the settings because when I read, some parameters have been considered but not all.
Here are my current settings :

[maralb]

My Dsp to be the version with blue panel, these are my connections
brown red 4-5 If Blowing
purple blue 1-2 If protection On
orange yellow 1-4 Water protect