6. Product Description
KISS 4U KTC5520 – User's Guide (Version 1.01)
6.1.3.2.
Gigabit-Ethernet (GbE LAN) LEDs
These two LEDs on the front side (see Fig. 13 and Fig. 15) and marked “LAN1” and “LAN2”, lights up/flashing, when
Ethernet Link/Activity is established/detected.
Fig. 15: LAN2 and LAN1 LED on the front side
6.1.3.3.
LEDs for Displaying of System Status and System Failures (if occur)
These two LEDs at the front side (see Fig. 13 and Fig. 16) and marked “SYSF1” and “SYSF2”, indicate the system status and
signalize if a system failure occurs (refer to the table below).
Fig. 16: SYSF2 and SYSF1 LED
Behavior of the LEDs during:
Normal operation (S0),
Suspend to RAM (S3; standby mode),
Soft Off (S5)
LED
if system is OK
If non critical failure occurs
If critical failure occurs
SYSF1 (green)
ON (continuous green)
OFF
OFF
SYSF2 (red)
OFF
ON (blinking red)
ON (continuous red)
6.1.3.4.
System ID LED and Button
This SYSID button (see Fig. 13, and Fig. 17, pos. 1) allows you to power on the SYSID LED (Fig. 17, pos. 2), in order to
mark the system for an intended maintenance/retrofitting. The SYSID LED may be powered off via this SYSID button.
2
1
2
SYSID LED
1
SYSID button
Fig. 17: SYSID LED and SYSID button on the front side
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