Hardware Installation of ATCA-7150
ATCA-7150 and RTM-ATCA-7150 Getting Started (6806800G42B) 95

3.7.2.1.1 Checks Before Power-Off

Before power-off, you need to confirm that:
zData has been saved on the ATCA-7150.
zNo application runs on the ATCA-7150.
zThe ATCA-7150 has quitted the operating system (OS).

3.7.2.1.2 Procedure

To power off the ATCA-7150, proceed as follows:
1. Wear the ESD-preventive wrist strap.
For details, see Wearing the ESD-Preventive Wrist Strap on page 75.
2. Open the upper and lower ejector handles.
The ATCA-7150 is powered off properly when:
zThe HOTSWAP LED blinks at the short blink rate and then is on (blue).
zThe OOS LED is on (red or amber).
zThe HEALTHY LED is off.
3.7.2.2 Removing the ATCA-7150
To remove the ATCA-7150, proceed as follows:
1. Wear the ESD-preventive wrist strap.
For details, see Wearing the ESD-Preventive Wrist Strap on page 75.
2. Open the upper and lower ejector handles to power off the ATCA-7150, as shown in Figure
3-9.
For details, see Power Off on page 94.
3. Use the screwdriver to unfasten the captive screws anticlockwise, as shown in Figure 3-9.