Underside
1) Charger socket
2) Programming socket
Rear panel
1)
Socket for Buddy button 1 (corresponds to "Activate /
scroll through drive mode" button).
2)
Socket for Buddy button 2 (corresponds to "ON/OFF"
button)
3)
Socket for Buddy button 3 (corresponds to "Activate /
scroll through adjustment mode" button).
4)
Socket for bus cable
7