Liebert STS2 Touch Screen Display
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13.8.6 Liebert SiteScan® Configuration

An optional RS-422 port, contained in the Comms Board, can be installed in the Liebert STS2 to
provide communications with Liebert SiteScan. Liebert SiteScan is system monitoring software that
allows you to utilize a PC to monitor the Liebert STS2’s status and check alarms. See 6.5 - Comms
Board for more information on this board.
If the Liebert STS2 will be connected to Liebert SiteScan:
• Select YES for the Liebert SiteScan choice in the Comm Options dialog box to activate the card.

13.8.7 Saving Your Communications Configurations

To save you communications configuration settings:
1. When you have completed the Comm Options configurations, ensure you have selected YES for all
the settings that you want activated.
2. Select SAVE to keep the settings.
Whenever you make modifications to the any of the Comm Options, select SAVE to keep the changes.
13.9 System Options
Most System Options are configured at the factory. However, you may need to set two of the choices
after the unit is installed: Wye Output Transformer and Remote Source Selection.
• Select SYSTEM OPTIONS from the System Settings Menu. (If needed, see 13.7.4 - System
Settings to access the System Settings menu.)
The System Options dialog box is displayed.
• An option is enabled by selecting YES.
• An option is disabled by se lecting NO.
Figure 59 System options

Dual Output Breaker

This selection is set at the factory. The choice is set to YES to enable both output breakers (CB3 and
CB3A) when two are installed in the unit. If only one output breaker (CB3) is installed, the setting is
set to NO.

PDU

This selection is set at the factory. This setting allows the LCD to draw the Mimic accordingly and
display PDU specific metering and alarm information.