18
Device Description
753-646 KNX/EIB/TP1 Module
Manual
Version 1.2.0
3.3
Display Elements
Figure 4: Display Elements
Table 5: Legend for Figure “Display Elements”
LED Designation
State
Function
A
Router mode
Off
Operating mode Router not active
On
Operating mode Router active
Flashing
Synchronization
B
KNX programming mode
Off
KNX programming mode not active
On
KNX programming mode active
Flashing
Checksum error
C
Data transfer local bus
Off
Local bus data transfer not active
Flashing
Local bus data transfer active
D
Data transfer KNX
Off
KNX data transfer not active
Flashing
KNX data transfer active
E
Device mode
Off
Device mode not active
On
Device mode active
Flashing
Synchronization
F
Buffer overflow
Off
No buffer overflow
On
Overflow
G
Internal fault
Off
No fault
On
Checksum error / device not
configured
H
KNX bus voltage
Off
KNX bus voltage not available
On
KNX bus voltage available