APC ACRP100 User Manual

Use this option to define the System Name, Contact, and Location values used to identify the cooling 
unit. For example, you might configure Name as Test Lab, Contact (whom to contact about the device) 
as Donald Adams, and Location as Building 3.

Use this option to set the time and date used by the cooling unit. The option displays the current 

settings, and allows you to change those settings manually or through a Network Time Protocol (NTP) 
Server.

•  Manual: Use this selection to do one of the following: 

– Enter the date and time for the cooling unit
– Mark the checkbox Apply Local Computer Time to match the date and time settings of the 

computer you are using, and click Apply.

•  Synchronize with NTP Server: Use this selection to have an NTP Server define the date and 

time for the cooling unit.

Use this option to enable either traditional United 

States Daylight Saving Time (DST) or to enable and configure a customized daylight saving time, with 
starting and ending dates and time that you specify to match how Daylight Saving Time is implemented 
in your local area. DST is disabled by default.

When customizing Daylight Saving Time:

•  If the local Daylight Saving Time always starts or ends on the 4th occurrence of a specific 

weekday of a month (for example, the 4th Sunday), choose Fourth/Last. If a 5th Sunday occurs in 
that month in a subsequent year, the time setting will still change to or from Daylight Saving Time 
on the 4th Sunday.

•  If the local Daylight Saving Time always starts or ends on the last occurrence of a specific 

weekday of a month, such as the last Sunday of that month, regardless of whether that last Sunday 
is the 4th or the 5th Sunday, choose Fifth/Last. 

Primary NTP 
Server

Enter the IP address or domain name of the primary NTP server.

Secondary NTP 
Server

Enter the IP address or domain name of the secondary NTP server, when a 
secondary server is available.

Time Zone

Select a time zone. The number of hours preceding each time zone in the list is 
the offset from UTC (Coordinated Universal Time, Temps Universel Coordonné, 
formerly Greenwich Mean Time), the international time standard.

Update Interval

Define how often, in hours, the cooling unit accesses the NTP Server for an 
update. The minimum is 1 hour; the maximum is 8760 hours (1 year).

Update Using 
NTP Now

Mark this checkbox and click Apply to initiate an immediate update of the date 
and time by the NTP Server.