Chapter 1 GPIB Hardware
© National Instruments 1-27 GPIB Hardware Guide
Startup
Turn on the front-panel power switch. The POWER LED turns
solid green. The READY LED flickers green rapidly while the
GPIB-ENET/1000 completes its boot process and attempts to acquire its
network parameters.
By default, the GPIB-ENET/1000 attempts its network configuration
automatically through DHCP. If there is no DHCP response, the
GPIB-ENET/1000 reverts to Auto IP addressing and assigns itself an
IP address in the range of
169.254.
x
.
x
. Refer to Auto IP Addressing for
more information. The time required for assigning the IP address depends
on your network and the configuration of your GPIB-ENET/1000. Allow
up to 30 seconds and observe the state of the READY LED to determine
the outcome of the boot process. One of the following should occur:
• A steady green READY LED indicates the GPIB-ENET/1000
finished the boot process and acquired its IP address. The unit is now
ready to operate. When using DHCP, the GPIB-ENET/1000 typically
is ready to operate about 15 seconds after you power it on.
•If the READY LED blinks a slow red pattern, the GPIB-ENET/1000
boot process failed. Refer to READY LED Signaling to interpret the
flash pattern before calling National Instruments Technical Support.
• A steady red READY LED indicates that the GPIB-ENET/1000 has
corrupt firmware and has entered Safe Mode. The only operation
allowed in Safe Mode is to update the firmware. Refer to the Firmware
Update section for instructions on how to update the firmware.
Table 1-2 summarizes the functionality of all the front-panel LEDs on the
GPIB-ENET/1000.
Table 1-2. GPIB-ENET/1000 LED Descriptions
LED Description
POWER Indicates the power cable is connected and the GPIB-ENET/1000 is switched on.
READY Flashes green rapidly at startup while booting and acquiring network parameters.
A steady green state indicates the box is ready for operation. A steady red or
slow red flashing pattern indicates an error occurred.
TALK Indicates the GPIB-ENET/1000 is configured as a GPIB Talker.
LISTEN Indicates the GPIB-ENET/1000 is configured as a GPIB Listener.
ACT/LINK Indicates the GPIB-ENET/1000 detected an Ethernet link and flickers to indicate
network activity.
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