Serial PC updater

[Barracuda]

I have a D100, a D120, an HS34, and an AP74.  The manuals don't appear to be clear on where the serial PC updater should be located.  Is it OK to leave it connected to the D120?

 

[dynonsupport]

Connect to the EFIS-D100 and update the EFIS-D100. It will update the AP74 and the servos.

Connect to the EMS-D120 to update it after you update the EFIS-D100.

See our new manual on updating.

I have a D100, a D120, an HS34, and an AP74.  The manuals don't appear to be clear on where the serial PC updater should be located.  Is it OK to leave it connected to the D120?