Specifications
29. UPS & Power Consumption
IP Office Matrix - Release 8.1 (2)
Page 86
IP Office System VA Watts BTU/hour
IP500 System
161 115 392
IP500 V2 System
161 115 392
IP406 V2 Control Unit
23 16.4 56
IP412 Control Unit
25 17.9 61
HP DL 360 Server Edition
728 520 1775
HP DL 120 Server Edition
568 406 1386
Individual Equipment
VA Watts BTU/hour
Analog 16 Module
13 8.8 30
Digital Station 16 Module
44 31 106
Digital Station 30 Module
79 56 191
Digital Station 16A Module
48 34 116
Digital Station 30A Module
84 60 205
WAN3 Module
17 12 41
So8 Module
34 24 82
Phone 8 Module
17 12 41
Phone 16 Module
23 16 55
Phone 30 Module
42 30 102
Typical Server PC
600 428 1461
Typical Desktop PC
400 285 973
Mid Span PSU - 6 ports
150 107 365
Mid Span PSU - 12/24 ports
300 214 730
• The 1151C2/1151D2 power supply units for Avaya H.323 IP phones include a backup battery. This typically
provides 15 minutes backup at maximum load (20 Watts) and up to 8 hours at light load (2 Watts).
IP Office Specific VA Values
The web site http://ups.avayaups.com provides a calculator into which you can enter the equipment you want supported on a UPS. It will
then display various UPS options. The site uses VA values for typical IP Office systems. However, if more specific values are required for
a particular system, the table below can be used to enter values.
Nominal Input 120 (Vrms)
Note that the numbers are for reference only. For practical
purposes, for example the calculation of heat dissipation, it
is recommended to base environmental requirements (for
example air cooling or UPS ratings) on the maximum input
rating of the power supplies of the planned IP Office
configuration, as follows. In order to calculate the maximum,
that is worst case, amount of heat that can be generated by
an IP Office system, it is assumed that all input power is
converted to heat; whether from the PSU itself, the system
unit,expansion module and/or cabling.Heat dissipation is
normally measured in British Thermal Units (BTU's). A heat
value expressed in Watts can be converted to BTU/hr by
multiplying by 3.41297. As indicated above, you should use
the maximum power input of each power supply to calculate
this most accurately. Using the conversion factor: Heat
Dissipation = max power in watts x 3.41297 = xxx
BTU/hour. See values to the left. The metric equivalent to
BTU is a Joule where 1 BTU = 1,055 to 1,060 Joules. This
calculates the BTU value per power supply. The maximum
BTU per system is therefore calculated, based on adding the
BTUs/hr for each expansion module plus the control unit.
Remember to budget for the power requirements of any
additional devices that are to be co-located with the IP Office
such as server PC's (voicemail, etc).