APC AP9924 - Manual (Page 14)

12 Wire Harness: Installation
Connect to the Battery Management System
Install the Battery
Management System
Install the Battery Management System in a battery cabinet, in a rack or
enclosure, or on top of the battery cabinet. The system must be installed
in a location that is safe, convenient, and accessible for connection
procedures.
String connection After attaching the wire harnesses to the batteries and securing the
harnesses to the cabinets or racks, connect the battery strings to the
Battery Management System.
1. Plug the connector for String A into the right rear of the Battery
Management System in the port marked Battery/Power Input A.
2. If applicable, plug the connector for String B into the left rear of
the Battery Management System in the port marked Battery
Input B.
See also
For instructions and safety information on installing the
Battery Management System (AP9921X and AP9921XS),
see the Battery Management System Installation and Quick
Start manual (990-1649A), included with your Battery
Management System. You can also obtain the manual and
other documentation for currently available models of the
Battery Management System at www.apc.com by searching
for the product's part number (e.g., AP9921X).
Note
Verify that the ON/OFF button is in the OFF position on
each Battery Management System before plugging in
connectors.