ZyXEL Communications XGS4700-48F - DC Power Module

Chapter 2 Hardware Installation and Connection
XGS4700-48F User’s Guide
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3 Push the lever leftward.
4 Grab the handle and slide the power module out.
2.4.2.2 DC Power Module
1 Refer to Section 3.3.4 on page 51 to disconnect the power before you begin.
2 Use a screwdriver to loosen the screw on the front panel of the power module.