Interface module DL485/13-xx-ST-SBT
19
Indicators
119
Building Technologies
008837_q_en_--
Fire Safety
14.05.2012
19.4
Indicators
LED
Color
Function
Condition
Meaning
V DC
Green
Supply
Off
No operating voltage available
On
+24 V voltage available on VDC1 or VDC2
FAIL
Red
Error
Off
Normal condition
On
Data error
RX
Yellow
Data line
Off
No data transfer
On
Data is being received
STA
Red
Status
Off
Normal condition
On
Optical receiving signal incorrect
19.5
Adjustment elements
The terminating resistor needed for the bus is selected using the DIP switch.
R
W
= wave resistance
R
PU
= pull-up resistance
R
PD
= pull-down resistance
Switch
Designation
Position
Function
6
OFF
Not connected
5
OFF
Not connected
4
OFF
Not connected
3
R
W
ON
120 between the data lines
2
R
PU
ON
390 fol5 V
1
R
PD
ON
390 following 0 V
1
6