Two 300 W DC power supplies are available: model 10933 (front-to-back airflow) and model 10944 (back-to-front airflow). Both can connect to either a +24 V or a –48 V power source.
The connection instructions, starting at step 4, are different depending upon whether you are connecting to a +24 V power source or a –48 V power source.
The DC power connection at your facility must be made by a qualified electrician, following these instructions.
Warning
Always make sure that the DC circuit is de-energized before connecting or disconnecting the DC power cables on the DC power supply.Caution
Provide proper connection and strain relief on the DC power cables in accordance with all local and national electrical codes.Leave the ESD strap permanently connected to the rack, so that the strap is always available when you need to handle ESD-sensitive components.
You can now connect network interface cables to the switch, using the instructions in Connect Network Interface Cables.