HP D5970A - NetServer - LCII Reference Manual page 14

Chapter 1
NOTE Older HP Systems racks may require that enclosures to be tied
together before any components are mounted inside them. To
avoid problems, if older rack versions are to be tied together,
do so before installing slide members, rails, shelves, units, or
other hardware. Otherwise, you may have to remove
components from the rack to gain access to the tie-bolt
locations.
2. If present, remove the front and rear doors to increase accessibility inside
the rack. Follow instructions shipped with the rack to do so.
NOTE
Older HP Systems racks may also require door hardware to be
in place before mounting components. If you are using front or
rear doors on older models of the HP Systems Rack, be sure
the hinge and latch hardware is mounted before putting on any
other hardware. This prevents later disassembly.
WARNING
When the back door of a rack is removed, the hinge and latch
catch brackets protrude. To avoid injury, temporarily remove
these brackets prior to installing components into the rear of
the rack.
3. If present, remove side panels to allow better access. Follow instructions
included with the rack to do so.
8. Install Fans If Required and Redundant Switch and UPS First If You Have Them
1. If an extractor fan unit is to be used, install it following instructions which
accompany the unit.
NOTE
Most HP NetServers have an internal fan system. However,
rack doors must be perforated (front and/or rear). In this case,
you do not need an extractor fan.
2. If an Uninterruptible Power Supply (UPS) is used, install the UPS
mounting rails and fasten the unit in place following instructions which
accompany it. Place the UPS equipment in the lowest EIA Units of the
rack. Plug the UPS in to charge the batteries as soon as possible.
10
Preparation for Cabling the HP NetServer LXr8500