Applying Ac Power - IBM TotalStorage SAN256N Director 2045-N16 Installation And Maintenance Manual

10. Verify that each TCM module is seated properly in the chassis and tightly connected
11. Verify that the appropriate number of power supply assemblies are installed for this
Note: The power supply serial numbers can be obtained from the white bar-code label
12. Locate the serial number on the label and record the serial number on the
13. Verify that the power supply assemblies are secured in position.
14. Verify that blank panel air baffles (for TFIO and/or TSM modules) are installed in all
Note: If blank panel air baffles for TFIO and/or TSW modules are not installed in the
15. Check the AC power cables to ensure that all cables are connected firmly and
16. Remove the protective plastic cover from the front of the front panel door.
17. Remove the protective plastic cover from the rear of the front panel door.The front

Applying AC power

Before you apply AC power to the SAN256N director, take the following precautions:
• Verify that the site is set up to provide full AC power redundancy. Two separate,
independent power lines with two separate circuit breakers are required for a single
chassis (SAN256N director-16). An uninterruptible power supply (UPS) should be
connected to the redundent power source.
• Verify that the SANC40 cabinet is properly grounded according to local electrical
codes.
• Verify that AC power can be shut down quickly in case of an emergency. You should
have easy access to the AC input power connections.
• Verify that the supplied power cables are of adequate length and are correct for the
site. Refer to Appendix B. AC power reference on page 123 if the power cables do not
appear to be correct.
to the appropriate Midplane connectors.
site configuration, and record each of the power supply assembly serial numbers.
located on each power supply handle.
SAN256N director Site Configuration Worksheet under Power Supply Assembly
Serial Numbers.
empty chassis slots.
empty chassis slots, or are not shipped with the chassis, contact the Account
Executive, Sales Engineer, and call the Help Desk to report that these parts are
missing and are required to complete the installation.
correctly to the power supplies, the wire bail strain reliefs are firmly connected to the
AC power cord connectors, and that the AC power cable plugs going to the
customers AC power receptacles are the correct plugs for this site. If the AC power
cable plugs are incorrect for this installation, refer to "AC power reference" on
page 123.
and rear panel doors should remain unlocked and open at this time.
Attention: Refer to safety notices before starting the installation.
Chapter 3. Installation
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