
2-5Using the Calibrator
Original — December 1991 UM4.6:CS6003
2.2.2.12 Family Switches
The family switches, CONT and MUX, determine which family of cards
the controller family or the multiplexer family, can be calibrated. The
calibrator initializes in the controller mode and the indicator on the CONT
switch should illuminate when the calibrator is turned on. The switches
are pressure-sensitive switches whose mechanism is built into the
calibrator front panel. Built-in LED indicators illuminate when a switch is
activated.
2.2.2.13 Group Mode Switches
There are five groups of multiplexer cards. Each group has a
corresponding group mode switch that must be turned on before a card
can be calibrated or tested. The five switches are AI1 (analog input type
1), AI2 (analog input type 2), AO (analog output), DI (discrete input), and
DO (discrete output). The switches are pressure-sensitive and each is
equipped with an LED indicator to show it is activated. Only one group
mode switch can be on at a time.
2.2.2.14 CHK MOM Switch
The CHK MOM (check momentary) switch is used in testing discrete
output multiplexer cards. Pressing the CHK MOM switch illuminates LED
indicators on the discrete output card, showing which output channels
have been activated. The CHK MOM switch is a pressure-sensitive
switch, but has no indicator.
2.2.2.15 CARD IDENT Switch
The CARD IDENT (card identity) switch, when pressed, causes the card
identity code of the multiplexer card being calibrated to be displayed on
the calibrator numerical display. The CARD IDENT switch is a
pressure-sensitive switch, but has no indicator.
2.2.2.16 Mode Switches
The calibration mode switches (RESET, CAL LOW, CAL HIGH, and
SCAN) are used when calibrating cards in the controller family.
Pressing the RESET switch activates a card self-test in each of the
controller family cards except the indicator card. While the test is in
progress, the IN PROGRESS indicator on the switch is illuminated.
When the test is completed, the COMPLETE indicator on the switch
illuminates. The RESET switch is a pressure-sensitive switch with two
LED indicators.
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