Liebert 100-1000A User Manual

Certain models of the Liebert STS2 do not include the LCD Color Graphical Display with the touch 

screen interface. This display is replaced by an LED front panel to allow you to monitor the unit and 

alert you when a problem occurs. The LED panel can be replaced with the Color Graphical Display, if 

desired. Instructions for using the LCD are in 13.0 - Liebert STS2 Touch Screen Display.
You can use a PC running terminal emulation software connected to the RS-232 port to access the 

data and configuration settings that are available in the Color Graphical Display touch screen.
See 12.1 - Using the RS-232 Port for instructions on setting up and using a terminal with the unit.

The LED Display unit is monitored and controlled through a series of LEDs and buttons and an 

optional key lockout switch. This section includes illustrations of the LEDs, buttons and key lockout 

switch, plus tables providing definitions of these components.

The front panel contains the LEDs to monitor the Liebert STS2, plus selection buttons to choose the 

preferred source. Figure 62 provides a breakdown of the front panel.
Table 15 on page 104 defines the LEDs and the push buttons on the display.

4

3

3A

(B) 2

(D)

(F)

5

(J)

(H)

(E)

1

(C)

1

(A)

(K)

(M)

!

(N)

PS211002
Rev. 0

2

(L)

(G)