Chapter 3
LEDs, DIP Switches, and Connectors
NI CVS-1450 Series User Manual
3-2
ni.com
POWER OK LED
Under normal operating conditions, the
POWER OK
LED remains green
while the CVS-1450 device is powered on. A green
POWER OK
LED
indicates that CVS-1450 device main power is receiving power and that the
CVS-1450 device is not in a fault state. A red
POWER OK
LED indicates
that the CVS-1450 device has shut down because of a fault state. A fault
state occurs when the user shutdown input is asserted, the processor
overheats, or the watchdog timer expires.
Note
The
POWER OK
LED does
not
indicate the status of the isolated power, Viso.
STATUS LED
The orange
STATUS
LED remains off under normal operating conditions
and flashes a specific number of times to indicate error conditions or certain
DIP switch settings. The
STATUS
LED remains lit if the CVS-1450 device
detects an internal error.
Refer to the
for information about LED error indications.
ACT/LINK LED
The orange
ACT/LINK
LED blinks when the CVS-1450 device receives
data from or transmits data to the network through the Ethernet connection.
Unrelated network activity causes this LED to blink occasionally even
when the CVS-1450 device is inactive.
Figure 3-2 shows the location of the
ACT/LINK
LED on the
CVS-1450 device.
100 Mbps LED
The green
100 Mbps
LED is lit when the network provides 100 Mbps
support and the CVS-1450 device is communicating at 100 Mbps. If the
100 Mbps
LED is not lit, the CVS-1450 device is not operating at
100 Mbps.
Figure 3-2 shows the location of the
100 Mbps
LED on the
CVS-1450 device.
