Siemens NCU 7 0.2 Series Manual page 96

Connectable components
9.2 COM01.2 RS 232C (V.24) module
Display
Figure 9-6
LED displays
LED H1 is located under the COM port. This can display the following operating states:
Table 9- 11
Color
Orange
Green
Red
96
COM01.2 RS 232C (V.24) module
LED displays, H1
Status Meaning
lights up COM01.2 is ready; after reset.
lights up COM01.2 is active.
lights up Operating error
Manual, 02/2011, 6FC5397-0AP20-0BA0
NCU 7x0.2