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Troubleshooting & Specifications
In-Band Access
5.1.4
You can access the management agent in the switch from anywhere within the attached network
using Telnet, a Web browser, or other network management software tools. However, you must first
configure the switch with a valid IP address, subnet mask, and default gateway. If you have trouble
establishing a link to the management agent, check to see if you have a valid network connection.
Then verify that you entered the correct IP address. Also, be sure the port through which you are
connecting to the switch has not been disabled. If it has not been disabled, then check the network
cabling that runs between your remote location and the switch.
Replace the Power Supply Unit
5.2
The switch has two power supply units (PSU). The PSUs can be replaced without the use of special
tools. Before replacing any of the PSUs, verify the status of the PSU to determine if there is a need for
replacement.
Remove the Power Supply Unit
5.2.1
Disconnect the AC power cord of the PSU that you want to remove.
1.
CAUTION:
Ensure that the AC power cord is disconnected from the PSU that you want to
remove.
Press the plug retainer and pull by the handle to slide the PSU away from the chassis.
2.
Remove Power Supply Unit
Figure 5-1:
Take note of the part number of the removed PSU.
3.
Replace the Power Supply Unit
5.2.2
Make sure that the part number of the new PSU is the same as the part number of the removed
1.
PSU.
Ensure the PSU orientation is correct and then slide the new PSU into the chassis until it is firmly
2.
seated.
Connect the AC power cord to power on the switch.
3.
WARNING:
Do not install the new PSU into the chassis by force. It should slide into the chassis
smoothly. In case otherwise, check if the PSU is properly oriented.
