Back Panel Features
The diagram and table show the back panel connectors and LEDs. For information about LEDs, see
“Light-Guided Diagnostics” on page 27.
Figure 1. Back Panel Connectors and LEDs
A. Status LED H. Diagnostic LED 2
B. System Identification LED I. Diagnostic LED 1
C. Diagnostic LED 7 (MSB LED) J. Diagnostic LED 0 (LSB LED)
D. Diagnostic LED 6 K. Serial Port A
E. Diagnostic LED 5 L. Video Port
F. Diagnostic LED 4 M. NIC 1 (top, default management port),
two USB ports (bottom)
G. Diagnostic LED 3 N. NIC 2 (top), two USB ports (bottom)
The NIC LEDs at the right and left of each NIC provide the following information.
Table 1. NIC LEDs
LED Color LED State Description
Left LED Off No network connection is in place
Solid Green Network connection is in place
Blinking Green Transmit/receive activity is occurring
Right LED Off 10 Mbps connection (if left LED is on or
blinking)
Solid Green 100 Mbps connection
Solid Amber 1000 Mbps connection
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