ZyXEL Communications IES-1248-51 Guía de usuario Pagina 595

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IES-1248-51V User’s Guide
595
APPENDIX A
Changing a Fuse
This appendix shows you how to remove and install fuses for the IES-1248-51V.
If you use a fuse other than an included fuse, make sure it
matches the fuse specifications in the chapter on product
specifications.
Removing a Fuse
Disconnect all power from the IES-1248-51V before you begin this
procedure.
This process requires partial disassembly of the IES-1248-51V.
Only a qualified technician should perform this process.
1 Remove the power wires from the IES-1248-51V.
2 Remove the IES-1248-51V’s top cover.
3 See the product specifications for the location of the fuse. A burnt-out fuse is
blackened, darkened or cloudy inside its glass casing. A working fuse has a
completely clear glass casing.
Use a small flat-head screwdriver to carefully pry out the fuse from the fuse clip.
4 Dispose of the burnt-out fuse properly.
Installing a Fuse
1 Gently press the replacement fuse into the fuse clip until you hear a click.
2 Replace the IES-1248-51V’s cover.
3 Reconnect the power wires to the unit.
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