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SECTION III.
TYPE 123 CARD READER
Main Control Panel Switches
The switches are momentary-contact MICRO SWITCH push buttons which become effective
upon depression.
A description of these switches follows.
POWER ON
Pressing this switch turns on primary power in the card reader.
POWER OFF
TRANSPORT ON
TRANSPOR T OFF
RUNOUT
START
The POWER ON indicator is illuminated when power is applied
to the card reader.
Pressing this switch turns off all power in the card reader and
extinguishes the POWER ON indicator.
If the POWER OFF
switch is pressed while a card is being read, the effect upon
data transfer is unspecified.
Pressing the TRANSPORT ON switch starts the transport motors
(provided the POWER ON switch has been pressed) or restarts
the transport motors if they have been stopped because of a jam
condition.
Pressing this switch also illuminates the TRANSPORT
ON indicator.
Pressing this switch stops the transport motor
s.
If the TRANSPOR T
OFF switch is pressed while a card is being read, the effect
upon data transfer is unspecified.
Pressing the TRANSPORT
OFF switch extinguishes the TRANSPORT ON indicator.
This switch is effective only when the reader is in the STOP
mode.
Pressing the RUNOUT switch generates the "clear"
signal and causes the card in the wait station to be moved through
the read station to the output stacker.
The clear signal resets
a VALIDITY check and a TRANSPORT check; it also resets a
cycle check when the instruction is not stored.
If an instruction
is stored, the R uNOUT switch clear s the stored instruction
and sets a cycle check.
Pressing the START switch places the reader in a "ready"
status and illuminates the START indicator.
The START
switch moves a card into the wait station (if it is empty)
resets the CARDS and INPUT indicators, and deactivates the
busy signal to the central processor.
If the START switch
is pressed before five seconds has elapsed following the
starting of the transport motors, or when the STOP indicator
is not illuminated, no action results.
3-2
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