FSD210: Valid IO signal types

Pulse Type Compatibility Matrix

	ON	+V	OSSD	A-Pulse	B-Pulse	C-Pulse	D-Pulse	invA-Pulse	invB-Pulse	invC-Pulse	invD-Pulse	win	invWin	frq	invFrq
ON		OK1	OK3	OK4	OK4	OK4	OK4	OK4	OK4	OK4	OK4	N	N	N	N
+V	OK1	N	N	OK2	OK2	OK2	OK2	OK2	OK2	OK2	OK2	N	N	N	N
OSSD	OK1	N	N	N	N	N	N	N	N	N	N	N	N	N	N
A-Pulse	OK2	OK2	N	N	OK2	OK2	OK2	OK2	OK2	OK2	OK2	N	N	N	N
B-Pulse	OK2	OK2	N	OK2	N	OK2	OK2	OK2	OK2	OK2	OK2	N	N	N	N
C-Pulse	OK2	OK2	N	OK2	OK2	N	OK2	OK2	OK2	OK2	OK2	N	N	N	N
DPulse	OK2	OK2	N	OK2	OK2	OK2	N	OK2	OK2	OK2	OK2	N	N	N	N
invA-Pulse	OK2	OK2	N	OK2	OK2	OK2	OK2	N	OK2	OK2	OK2	N	N	N	N
invB-Pulse	OK2	OK2	N	OK2	OK2	OK2	OK2	OK2	N	OK2	OK2	N	N	N	N
invC-Pulse	OK2	OK2	N	OK2	OK2	OK2	OK2	OK2	OK2	N	OK2	N	N	N	N
invD-Pulse	OK2	OK2	N	OK2	OK2	OK2	OK2	OK2	OK2	OK2	N	N	N	N	N
win	N	N	N	N	N	N	N	N	N	N	N	OK1	N	N	N
invWin	N	N	N	N	N	N	N	N	N	N	N	OK1	N	N	N
frq	N	N	N	N	N	N	N	N	N	N	N	N	N	OK5	N
invFrq	N	N	N	N	N	N	N	N	N	N	N	N	N	N	OK5

Legend

OK1

Fast response

OK2

xPulses: max external delay 300us, if > 300us - may get external failure error

OK3

cannot safely handle disconnection by itself - should be combined with redundant signal of other type

OK4

OK2+OK3, ie, max external delay 300us and cannot safely handle disconnection by itself

OK5

As OK 2) but will be developed in next step, not included in first certification.

N

Not allowed

Note

The table shows compatibility between different pulse types and system states. Each cell indicates the compatibility level using the codes defined in the legend above.