
User Guide
26
www.bull.com
RJ45 Leds
Refer to
“LAN Connector Lamps” on page 251
for more information.
Identification of Servers ~ UID Switch ~
An "UID (Unit ID) LED" is provided on the front panel and rear panel. If more than
one server is mounted in a single rack, the LED identifies the server you are going to
maintain.
The UID LED (A) goes on when the UID (Unit ID) switch (B) on the front panel is
pressed. It goes off when the switch is pressed again.
Maintenance from the rear of the rack has to be carried out in a dark, narrow space. The
interface cable of a server or power supply unit in normal state may be disconnected by
accident in this situation. To prevent this problem, you should start maintenance after
confirming the target server by using the UID switch.
ID
NMI
B
2
ID
1
A
B
B
A
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