Chapter 4
  |  Power and Grounding
How to Connect to AC Power
–  30  –
How to Connect to AC Power
To supply AC power to the switch, first verify that the external AC power supply can 
provide the power requirement as listed in Table 3 for each PSU installed.
Caution:
 For electrical safety purposes, please pay attention to the following 
notices, printed on the switch unit.
To connect the switch to a power source:
1. Install one or two AC PSU units. Slide them into the PSU slots at the rear of the 
switch until they click into place. (Push the release lever to remove a PSU from 
the switch.)
Figure 16:  AC PSU and Power Connection
2. Plug the power cord into a grounded, 3-pin, AC power source.
Note:
 For international use, you may need to change the AC power cord. You must 
use a cord set that has been approved for the socket type in your country.
AC Power Supply Unit AC Power Cord
PSU Release Lever