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14 IBM Netfinity EXP300 - Type 3531 Hardware Maintenance Manual
System-management software, such as IBM Netfinity Manager™, uses the ID when it
provides data and alerts for the expansion unit.
For more information on option switch settings, see “Setting the interface options and
ID settings” on page 10.
The following illustration shows the location of the switch card on the expansion unit.
Front controls, indicators, and devices
The primary controls on the front of the expansion unit are shown in the following
illustration.
Power-on LED (green)
This green light indicates that the unit has good dc power.
0
1
2
3
4
5
6
7
8
9
External option switches
Switch card
Unit ID switch
0
1
2
3
4
5
6
7
8
9
1
2
3
5
4
Power-on LED (green)
Activity
LED (green)
General-system-
error LED (amber)
Fault
LED (amber)
Drive bays
Tray
handle
Latch
Bridge
card bay
Drive CRU
Filler panel