3. Connect the end of the power cord to the power receptacle on the second PSU.
4. Plug the AC power cord into a power source such as a wall socket or power strip.When you apply
power, the Power 2 LED on the switch front panel lights. If the Power 2 LED does not light, check that
the power cord is plugged in correctly and that the power source is good.
Optional Step 9: Connect a Redundant Power Supply
This procedure is optional for model M4300-52G-POE+ only, which can support an optional ProSAFE
RPS5412 external redundant power supply (RPS).That is, model M4300-52G-POE+ can support two internal
power supply units (PSUs) and an external RPS.
To install the RPS and apply power:
1. Power off the switch.
2. Loosen the screws of the RPS cover plate to remove the cover plate and expose the RPS interface.
DescriptionNumber
RJ-45 RS232 console port1
RPS interface2
PSU with AC connector3
Bay for PSU24
3. Connect the RPS cable to the RPS receptacle on the switch.
4. Connect to other end of the RPS cable to the RPS.
5. Plug the AC power cord of the RPS into a power source such as a wall socket or power strip.
6. Power on the switch.
Optional Step 10: Connect a Console to the Switch
This procedure is optional.You can manage the switch through its web management interface or through
a console that is attached to the switch. To be able to use a console, you need the following items:
• A computer with a Windows, MAC, or Linux operating system, a UNIX workstation, or a VT100/ANSI
terminal.
• Depending on the connector type at your computer or terminal, use one of the following cables, both of
which are included in the product package:
Installation
50
Managed Stackable Switch Series M4300
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