§ h e rotary sw itch , labeled
"D ecim al Inp ut-O utput,
may be m anually rotated
or motor d riv e n . Connected
d ire c tly with the pointer
knob there is a w iper arm
underneath the computer
p an e l. As the w iper arm and
the pointer knob move around th
c irc le of co n tacts, the w iper arm
momentarily connects w ith each set of
contacts on the rotary switch d ial in turn
The w ip er arm rotates w ith the pointer knob and makes
an e le c tric a l connection w ith each set of contacts
in turn around the rotary switch d ial (see the
follow ing illu stra tio n ). The contacts
are designated by:
D = Decim al Input-O utput
8
= term inal number (1 to 19)
. . . for exam ple D
8
The contact on the w ip er arm is
referred to as "D 16 . "
For exam p le, when the pointer
knob points at
1
, the w iper
arm makes an e le c tric a l
connection between
D l and D16.
V IE W UAID ER P A N E L
20
Summary of Contents for Minivac 601
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