Avaya IP Office Essential Edition PARTNER Version Reference Manual page 26

· What equipment to place on the UPS?
Remember to include server PCs such as the voicemail. It is recommended that the total load on a new UPS is never
greater than 75% capacity, thus allowing for future equipment.
· How many minutes of UPS support is required?
Actual UPS runtime is variable, it depends on what percentage of the UPSs capacity the total equipment load
represents. For example, a 1000VA capacity UPS may only support a 1000VA (100%) load for 5 minutes. This
relationship is not linear, the same UPS would support a 500VA (50%) load for 16 minutes. Therefore the lower the
percentage of capacity used, the increasingly longer the UPS runtime, typically up to 8 hours maximum. Remember
also that for most UPSs the ratio of discharge to full recharge time is 1:10.
· How many output sockets does the UPS provide?
Multiple UPS units may be required to ensure that every item of supported equipment has its own supply socket.
The web site http://powerquality.eaton.com/AVAYA/default.asp?cx=101
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.
PARTNER® Version, Installation and Reference Manual
IP Office Essential Edition
Typical IP Office System
IP Office System
Individual Equipment
Phone 8 Module
Typical Server PC
Typical Desktop PC
Mid Span PSU - 6 ports
Mid Span PSU - 12/24 ports
System Overview: Power Supplies
provides a calculator into which you can enter
VA
230
VA
17
600
400
150
300
- Issue 1a (30 January 2010)
Page 25