6Intel® Server System SR1520ML User’s Guide
System Rear

Except for the shared AC power supply, each server board has its own back panel

connectors.

Figure 3. Back Panel Connectors

The LEDs at the right and left of each NIC provide the following information.

A. AC power connector (one per
system) E. Serial port (one for each server
board)
B. PCI Express* add-in card slot
location (one for each server board) F. NIC 2 (10 / 100 / 1000 Mb) (one for
each server board)
C. NIC 1 (10 / 100 / 1000 Mb) (one for
each server board) G. USB ports 0-1 (one sets of two ports
for each server board)
D. Video connector (one for each server
board)

Table 3. NIC LED Descriptions

LED LED State Description
Left Off No network connection
Solid amber Network connection in place
Blinking amber Transmit/receive activity
Right Off 10 Mbps connection (if left L ED is on or blinking)
Solid amber 100 Mbps connection
Solid green 1000 Mbps connection

ACC

B B

DEFG

DEFG

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