1
Power-on indicator
2
On/off button
3
Power cable
3. Disconnect the power cable from the main power source
3
.
4. Replace the power cable and make sure it is seated. The 2145 UPS-1U enters standby mode. All
indicators are off and power is not available to the SAN Volume Controller. The battery recharges
when necessary.
5. To turn the 2145 UPS-1U on, press and hold the on/off button
2
until the 2145 UPS-1U power
button
1
is illuminated (approximately five seconds). On some versions of the 2145 UPS-1U, you
need a pointed device, such as a screwdriver, to press the on/off button. The front panel indicators
then cycle through a startup sequence while the 2145 UPS-1U conducts a self-test. When the self-test
completes, the power-on indicator and the load indicators illuminate to show that the 2145 UPS-1U is
supplying power. The 2145 UPS-1U resumes service in normal mode.
Removing the 2145 UPS-1U battery
Follow all safety notices when you are removing the 2145 UPS-1U battery.
CAUTION:
Lead-acid batteries can present a risk of electrical burn from high, short-circuit current. Avoid battery
contact with metal materials; remove watches, rings, or other metal objects, and use tools with
insulated handles. To avoid possible explosion, do not burn.
Exchange only with the IBM-approved part. Recycle or discard the battery as instructed by local
regulations. In the United States, IBM has a process for the collection of this battery. For information,
call 1-800-426-4333. Have the IBM part number for the battery unit available when you call. (C004)
Use the reference numbers in parentheses at the end of each notice, such as (C003) for example, to find
the matching translated notice in IBM Systems Safety Notices.
Perform the following steps to remove the 2145 UPS-1U battery:
1yyyrr
1
2
3
+ -
LOAD 1LOAD 2
Figure 319. Front and back panels for the 2145 UPS-1U
284 IBM SAN Volume Controller Hardware Maintenance Guide
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