IBM R30 Operator's Manual page 145

Manually Powering On the AC Rack Containing a PDU
1. Set the key mode switch to the Service position.
Operator Panel
Note: For a translation of this notice, see the System Unit Safety Information manual.
CAUTION:
This product is equipped with a 3-wire power cable and plug for the user's safety. Use
this power cable in conjunction with a properly grounded electrical outlet to avoid
electrical shock.
Note: Ensure that the power button is in the off position (button in the out position) before
plugging the CPU enclosure power cord into the power distribution system on your
rack.
2. Plug the system unit power cord into the electrical outlet.
3. If the battery backup unit is installed, set the Master CB2 circuit breaker to On.
Note: Ensure that the key mode switch is set to the Service position to prevent system unit
power from being switched on unexpectedly.
4. Set the Master CB1 circuit breaker to On.
Master CB1
Master CB2
Normal
Secure
Service
Key Mode Switch
Battery Backup Unit
Power Distribution Unit
Using the AC Rack
5-3