Ac Grounding; Inspecting The Bridge Tool - IBM totalstorage 2109 M12 Installation And Service Manual

AC grounding

Check the voltage label on the bottom of the device to ensure that it matches the
voltage at the power source.
1. Check the voltage level at the power source.
2. Check for proper grounding.
3. With the power cable connected to the switch, verify that there is 0.1 ohm or
4. If the switch passes the test in steps 1 to 3, connect the power cable to the

Inspecting the bridge tool

Note: The bridge tool (PN 18P5855) is only shipped with a replacement 2109
Perform the following safety label checks for the bridge tool:
1. Verify that the bridge tool alignment label shown in Figure 8 on page xix is
xviii
IBM TotalStorage SAN Switch: 2109 Model M12 Installation and Service Guide
DANGER
An electrical outlet that is not correctly wired could place
hazardous voltage on metal parts of the system or the devices
that attach to the system. It is the responsibility of the customer
to ensure that the outlet is correctly wired and grounded to
prevent an electrical shock. (D004)
Attention: Always use an analog meter, never a digital meter, to perform the
ground check of the power outlet. A digital meter can give the wrong reading if
ground current is present.
less resistance between the ground lug on the power cable plug and the metal
frame.
power source.
Model M12 and is not part of the normal ship group. Inspect the bridge tool
and ensure that the two adjustable supports are securely fastened and are
rotated 90° from the base plate.
installed on the load plate.