NEXCOM APPC 1240T - Manual (Page 94)

Copyright © 2015 NEXCOM International Co., Ltd. All Rights Reserved. 78 APPC 1240T/1245T/1540T/1740T/1940T User Manual
Chapter 3: System Setup
6. With the bracket still facing backwards, align the mounting holes on
the bracket to the mounting holes on the back of the chassis, then
tighten screws to secure it. Once secured, plug the power adapter cable
into the DC input.
DC input