Guidelines For Powering The Lxr In A Rack - HP D5970A - NetServer - LCII Reference Manual

Chapter 2

Guidelines for Powering the LXr in a Rack

Wide Ranging PDU Configurations
Use of four possible 200/240 VAC PDU configurations depends upon the power
requirements of the devices in the rack. Table 2-4 shows how to determine how
many PDUs are supplied with each rack configuration. In configurations that use a
wide-ranging 10-amp PDU, it will always be plugged into a wide-ranging 16-amp
PDU.
Table 2-4. Number, Type, and Ratings of 200/240 VAC PDUs
Wide Wide Part #s
Range Range
16 Amp 10 Amp
(Note 3)
1 0 E7671A (Note 1)
1 1 E7672A (Note 2)
2 0 E7671A + E7671A
2 1 E7671A + E7672A
Note 1 The E7671A includes one 16 amp PDU. The cord that attaches it to the power
source must be ordered separately, specifying the cord end required.
Note 2 The E7672A includes one 16 amp PDU, one 10 amp PDU, and the cord that
attaches them together. The cord that attaches the 16 amp PDU to the power source must be
ordered separately, specifying the cord end required.
Note 3 The 10-amp PDU can be ordered as an accessory using part number E7670A.
The cord that connects it to the 16-amp PDU must be ordered separately.
Guidelines for PDU Placement
Your wide-range PDU configuration is determined using Table 2-4 and by
application of the following guidelines:
1. The first configuration in the list in Table 2-4 that meets receptacle
count, current requirements, and power requirements is recommended
by rack configuration tools and supplied, unless the purchaser has over-
ridden this choice.
2. The total power drawn by all components in the rack is accumulated by
rack configuration tools, and a second UPS is recommended if wattage
of the first is exceeded.
3. One 16-amp PDU is supplied for each Uninterruptible Power Supply
(UPS) in a rack.
4. (a) When several HP Rack Storage/8 or Rack Storage/12 units are in
the same rack, use of two wide-range 16-amp and one wide-range 10-
Rack Cabling References
C-19 C13
Receptacles Receptacles
2 6
2 15
4 12
4 21
Total Amps
16
16
32
32
21