▌1▐ Online indicator
▌2▐ Fault indicator
3. Rotate both handles on the new secondary expander module to an open
position, as shown in Figure 85.
4. Carefully align the edges of the secondary expander module in the guide slot
in the enclosure, as shown in Figure 86 on page 89.
Figure 84. LEDs on a secondary expansion module
Figure 85. Open the secondary expander module handles
88 SAN Volume Controller: Model 2145-SV1 Hardware Installation Guide