APC ACRP500 User Manual

You can manage the cooling unit through the Web interface, display interface, control console, Modbus, 
or SNMP. SNMP requires the PowerNet

®

 MIB, available on the Utility CD or from the APC Web site, 

www.apc.com.

Only one user at a time can log on to the cooling unit to use its internal user interface features. The 
priority for access is as follows:

•  Local access to the control console from a computer with a direct serial connection to the cooling 

unit always has the highest priority.

•  Telnet or Secure SHell (SSH) access to the control console from a remote computer has the next 

highest priority.

•  Web access, either directly or through the InfraStruXure Central, has the lowest priority.

For more information about the menu-driven interfaces of the cooling unit, see “Web 
Interface” on page 13 and “Control Console” on page 6.

For more information about the display interface, see the Operation and Maintenance manual 
for your cooling unit, available on the Utility CD or on the APC Web site, www.apc.com.

To download the latest version of the Modbus register map, go to the APC Web site, 
www.apc.com, search by part number, and click the link to the register map in the list of 
documentation. Check the publication date at the start of the file.
For more information about Modbus, see the Modbus Standard Library at www.modbus.org.

To use the PowerNet MIB with an SNMP browser, see the PowerNet SNMP Management 
Information Base (MIB) Reference Guide, provided on the Utility CD.

For information on how to control SNMP access to the cooling unit, see “SNMP” 
on page 46.