Cisco AJ732A - MDS 9134 Fabric Switch Installation Manual page 114

Starting Up the Switch
S e 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 c k - d o c @ c i s c o . c o m .
Ensure that the system (earth) ground connection is made. See the
Step 2
page
Step 3 Turn the power switch on the power supply to off (0).
Unfasten the two screws securing the terminal block cover and pull the cover off the terminal block.
Step 4
Connect the DC power cables to the terminal block as follows:
Step 5
a.
b.
c.
Caution
Warning
d.
e.
Caution
If a second DC power supply is installed, repeat the procedure for the other power supply, using a
Step 6
separate power source to provide redundancy in case of a line failure and ensuring the related circuit is
off.
Caution
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
Cisco MDS 9500 Series Hardware Installation Guide
2-34
2-17.
Identify the ground, negative, and positive DC cables and verify that all are copper and sized per
local and national installation requirements.
Strip the cable ends to allow for metal-to-metal contact.
Loosen the screws in the terminal block and connect the DC power cables to the terminal block in
the following order:
– Ground
Negative (-)
–
Positive (+)
–
The DC return connection (Negative (-)) to this system is to remain isolated from the system
frame and chassis (DC-I). Loosen the captive screw on the power supply.
When installing or replacing the unit, the ground connection must always be made first and
disconnected last. Statement 1046
Secure the cables in place by tightening the terminal block screws.
Replace the terminal block cover and fasten the two screws attaching it to the chassis.
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.
Leave the power to the DC circuit off until you are ready to provide power to the switch.
Chapter 2 Installing the Cisco MDS 9500 Series
"System Grounding" section on
OL-17467-02