Chapter 2 Installing the Cisco MDS 9500 Series
Starting Up the Switch
Se n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a ck - d o c @ c i s c o . c o m .
Step 2 Ensure that the system (earth) ground connection is made. See the “System Grounding” section on page
Step 3 Turn the power switch on the power supply to off (0).
Step 4 Unfasten the two screws securing the terminal block cover and pull the cover off the terminal block. Step 5 Connect the DC power cables to the terminal block as follows:
a.Identify the ground, negative, and positive DC cables and verify that all are copper and sized per local and national installation requirements.
b.Strip the cable ends to allow for
c.Loosen the screws in the terminal block and connect the DC power cables to the terminal block in the following order:
–Ground
–Negative
–Positive (+)
Caution The DC return connection (Negative
Warning When installing or replacing the unit, the ground connection must always be made first and disconnected last. Statement 1046
d.Secure the cables in place by tightening the terminal block screws.
e.Replace the terminal block cover and fasten the two screws attaching it to the chassis.
Caution To prevent a short circuit or shock hazard after wiring the DC power supply, reinstall the terminal block cover before restoring power to the DC circuit.
Step 6 If a second DC power supply is installed, repeat the procedure for the other power supply, using a separate power source to provide redundancy in case of a line failure and ensuring the related circuit is off.
Caution Leave the power to the DC circuit off until you are ready to provide power to the switch.
Step 7 If there are no other DC power cables to connect and you are ready to power the switch on, restore power to the DC circuit by removing the tape from the circuit breaker handle and flipping the handle to on.
Providing Power to a DC Power Supply in the Cisco MDS 9506 Director
Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
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