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Locomotive Cab Display Module (LCDM)
Maintenance Manual
Doc. No. IP-235
03
4.3.6
Status LEDs
Three (3) Status LEDs, are located in the front. The LEDs can be activated from the applica-
tion via envcon daemon. The LED colors are:
Table 4-1 Status LEDs
4.3.7
Audible Alarm
*782340 with Serial Number Prefix prior to "GO" and 782342 with Serial Number Prefix prior
to "HO" have internal audible alarms.
Table 4-2 Overview of Acoustic Signaling Transmitter
4.3.8
System Clock
When powering up the operating system, the system time is synchronized with the time value
of the high-precision RTC of the mainboard.
4.3.9
Keyboard
The LCDM is delivered with 11 softkeys.
Designation
Color
Function
LED 1
Red
Error status (optional)
Freely Available via AP1
LED 2
Yellow
Operating state display:
Off – Device is off
On – Device is ready for operation
1 Hz Blinking – Device is outside of operating tem-
perature
4 Hz Blinking – Device off, watchdog limit achieved
LED 3
Blue
Freely available via AP1
LCDMs w/Internal Alarm*
LCDMs w/External Alarm
Location
Mainboard
Rear panel
Form
Miniature piezoelectric buzzer
Miniature piezoelectric buzzer
Volume
85 dB (at 24” (60 cm) distance, free
field)
85 dB (at 24” (60 cm) distance, free field)
Frequency
4 kHz
2.75 kHz
