Vertiv Liebert APS series - Page 56

The user-interface module provides three network ports and one USB port. Of those, one network port
(LCD port) is used for power supply and communication of the user interface module. Other network ports
and the USB port are reserved for use only by customer-service personnel.
Figure 4.6 LCD port
ITEM DESCRIPTION
1 LCD port
2 User-interface module
Vertiv | Liebert® APS™ Installer/User Guide | 56