Description of the GPIB-232CT
Chapter 1
GPIB-232CT User Manual
1-6
© National Instruments Corp.
The LEDs show the current status of the GPIB-232CT at all times. Table
1-4 describes each LED.
Table 1-4. LED Descriptions
!
LED
Indication
!
!
POWER
Indicates that power to the unit has been applied and the
ON/OFF switch is in the ON position.
!
!
READY
Indicates that the power-on self-test has passed successfully
and the unit is ready to operate.
!
!
TALK
Indicates that the GPIB-232CT is configured as a GPIB
Talker.
!
!
LISTEN
Indicates that the GPIB-232CT is configured as a GPIB
Listener.
!
!
SRQ
Indicates that the GPIB signal line SRQ* is asserted (low).
!
!
ATN
Indicates that the GPIB signal line ATN* is asserted (low).
!
Note:
* indicates that the signal is active low (negative logic).
