IP Substation - Additional DAK keys

The IP substation board supports input for digits 0 - 9, 10 DAK-keys, as well as M-key and C-key. The inputs are available on soldering pads on the substation PCB.

Location of soldering pads on the substation PCB

Inputs for DAK-keys, M- and C-key

DAK 1:  N115 + N112
DAK 2:  N115 + N113
DAK 3:  N115 + N114
DAK 4:  N105 + N110
DAK 5:  N105 + N111
DAK 6:  N105 + N112
DAK 7:  N105 + N113
DAK 8:  N105 + N114
DAK 9:  N105 + N115
DAK 10: N106 + N110
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M-key:  N115 + N111
C-key:  N115 + N110

If more than 10 DAK keys are needed, it is possible to use the digit keys as DAK keys. The function needs to be enabled by the flag "Digit Key is DAK" in the Users & Stations > Station Type menu in AlphaPro. The regular DAK keys are then moved to DAK 11 - 20.

Inputs for digit keys

Digit 0:  N111 + N110
Digit 1:  N112 + N110
Digit 2:  N112 + N111
Digit 3:  N113 + N110
Digit 4:  N113 + N111
Digit 5:  N113 + N112
Digit 6:  N114 + N110
Digit 7:  N114 + N111
Digit 8:  N114 + N112
Digit 9:  N114 + N113

The keyboard matrix

The keyboard matrix of the IP station

KEY0 = N110
KEY1 = N111
KEY2 = N112
KEY3 = N113
KEY4 = N114
KEY5 = N115
KEY6 = N105
KEY7 = N106
KEY8 = N107