Smiths, Synchro Multiturn Indicator, PSI

Pin	Function
A	165 R to B	Synchro R1, 115V 400Hz live
B	Chassis Common	SYnchro R2, 115v 400Hz return
C	624R to D&E	Synchro S1 (26v)
D	624R to C&E	Synchro S2 (26v)
E	624R to C&D	Synchro S3 (26v)
F	n/c
G	n/c
H	n/c
I	n/c
J	n/c
K	n/c
L	n/c
M	n/c
N	n/c