Replacing Power Supply Units
Note
Should you experience any problems with the unit, refer to
“Troubleshooting Power Supply Units” on p.88. If the unit does not
respond, remove it from the slots as described above. Install another
replacement unit or reinsert the appropriate dummy module into the
empty slots as described in “Inserting a Dummy Module” on p.773 and
“Removing a Dummy Module” on p.775.
Step 12 Place the removed power supply unit in the original static-protective package.
Step 13 Put the static-protective package into the original shipping box and lay the box
aside.
Step 14 If available, mount the front cover to the shelf as described in “Mounting an
SH7HU, SH9HU, or SHX9HU Front Cover” on p.769.
Step 15 Detach the wrist strap from your wrist, disconnect the grounding wire from the
ESD grounding point on the shelf (if available) or the rack and lay the grounding
wire aside.
Step 16 Return the defective module to ADVA Optical Networking, as described in the
Installation and Commissioning Manual.
If you have any problems that result in a deviation from the insertion procedure
described above, contact ADVA Optical Networking Technical Services.
Replacing a PSU/7HU-DC, PSU/7HU-DC-HP, or
PSU/7HU-DC-800
CAUTION
Only Service Personnel are allowed to replace a PSU/7HU-DC,
PSU/7HU-DC-HP, or PSU/7HU-DC-800.
For specific information about these power supply units, refer to the Hardware
Description.
A malfunctioning PSU/7HU-DC, PSU/7HU-DC-HP, or PSU/7HU-DC-800 can be
swapped out while the shelf is in service. The system will keep running with its redundant
power supply unit provided that one is installed in the shelf.
Equipment Required
Before starting the procedure, ensure the following is available.
• Torx screwdriver TX10 to assist in loosening the knurled screws
• Flat blade screwdriver (3.5 mm x 0.5 mm) or Phillips crosstip screwdriver for
clamping and detaching the wires of the DC power cord
• TPA25 A fuse and AWG 10 power cord when upgrading to a PSU/7HU-DC-800
• ESD-preventive wrist strap or other personal grounding device
• Suitable grounded surface or an antistatic mat for placing the power supply unit
• Replacement power supply unit packaged in the shipping box
FSP 3000R7 Maintenance and Troubleshooting Manual - Product Release 16.2 - Document Issue A 709
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