Cisco ONS 15454 Hardware Installation Manual page 214

NTP-G343 Install the Air Plenum in ONS 15454 M2 Shelf
Warning
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1074
Warning
Before working on a chassis or working near power supplies, unplug the power cord on AC units.
Statement 246
Warning This equipment is intended to be grounded. Ensure that the host is connected to earth ground during
normal use. Statement 39
Note For nominal voltage of -60 VDC, the input voltage range is from -40 to -72 VDC.
Note Use only the fastening hardware provided with the ONS 15454 M2 to prevent loosening, deterioration, and
electromechanical corrosion of the hardware and joined material.
Warning
When installing or replacing the unit, the ground connection must always be made first and disconnected
last. Statement 1046
Warning
The air plenum is installed on a rack or a cabinet using thread-forming screws that remove any paint
or non-conductive coatings inside the hole threads, and establish a metal-to-metal contact. Also, clean
both surfaces outside the screw points that come in contact, so that they are free of paint and other
nonconductive coating. Apply an appropriate antioxidant compound to the surfaces.
Procedure
Depending on the rack or cabinet, complete the necessary tasks:
• DLP-G763 Install Air Plenum for ONS 15454 M2 Shelf in ANSI 19-inch Configuration, on page 185
• DLP-G764 Install Air Plenum in ONS 15454 M2 Shelf for ANSI 23-inch Configuration, on page 187
• DLP-G765 Install Air Plenum for ONS 15454 M2 Shelf in ETSI Configuration, on page 191
Stop. You have completed this procedure.
Cisco ONS 15454 Hardware Installation Guide
184
Installing the ONS 15454 M2 Shelf