•
There must be an earth ground connection to the chassis that you are installing the replacement module.
To ground the chassis, see
Grounding the Chassis, on page 25
.
Step 1
If the power supply slot has a blank filler panel, remove it from the slot by moving its release latch to the left and pulling
the panel out of the slot.
Step 2
Holding the replacement power supply with one hand underneath the module and the other hand holding the handle,
align the back end of the power supply (the end with the electrical connections) to the open power supply slot and slide
the power supply all the way into the slot until it clicks into place.
Step 3
If the DC power cables and a grounding cable are already connected to an electrical connector block, insert the block
into the power receptacle on the power supply.
If the electrical cables have not been connected to the electrical connector block, wire them as described in
V DC Electrical Connector Block, on page 42
.
Step 4
Turn on the circuit breaker for the DC power source connected to the power supply.
Step 5
Verify that the power supply
LED turns on and becomes green.
Wiring a 48 V DC Electrical Connector Block
You must connect the ground, negative, and positive DC power cables to a connector block in order to connect
the power cables to a 48 V DC power supply.
The recommended wire gauge is 8 AWG. The minimum wire gauge is 10 AWG.
Note
Statement 342
—
Before Connecting to System Power Supply
High leakage current earth connection essential before connecting to system power supply.
Warning
Statement 1024
—
Ground Conductor
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority
or an electrician if you are uncertain that suitable grounding is available.
Warning
Before You Begin
You must turn off the circuit breaker for the DC power cables that you are connecting to prevent electrocution.
Step 1
Verify that the circuit breaker for the DC power source you are connecting is turned off.
Step 2
Remove the DC power connector block from the power supply by doing the following:
Cisco Nexus 93120TX NX-OS Mode Switch Hardware Installation Guide
42
Replacing Modules
Installing a DC Power Supply
Содержание Nexus 93120TX
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Страница 22: ...Cisco Nexus 93120TX NX OS Mode Switch Hardware Installation Guide 12 Preparing the Site Clearance Requirements ...
Страница 64: ...Cisco Nexus 93120TX NX OS Mode Switch Hardware Installation Guide 54 LEDs Power Supply LEDs ...