Chapter 1
Description of the GPIB-PRL
© National Instruments Corp.
1-5
GPIB-PRL User Manual
The LEDs show the current status of the GPIB-PRL 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-PRL is configured as a GPIB
Talker.
LISTEN
Indicates that the GPIB-PRL is configured as a GPIB
Listener.
BUSY
Indicates the current status of the parallel bus signal BUSY.
FULL
Indicates that the internal data buffer of the GPIB-PRL has
become full. This is not an error condition, but is merely
a signal that bus performance may be reduced to the speed
of the slower interface.
