Expansion port RS485/RS422
Wieland Electric GmbH | BA000917 | 08/2021 (Rev. C)
28
7.5
Port status
LED port indicator
Green LED
Indicates data reception
Yellow LED
Indicates data transmission
Status indication is supported from 4
th
revision of boards.
7.6
Technical specifications
Expansions ports RS485/RS422
Power supply
External
+10 … +30 V
Internal
+3.3 V
Supply power
Max. 1 W
Supply current
Max. 4 mA
Environment
Operating temperature
-30 … +60 °C
Storage temperature
-30 … +85 °C
Standards
Emission
EN 55022/B
Immunity
ETS 300 342
Safety
EN 60950
RS422/RS485 specifica-
tions (EN 1434)
Max. devices (each 1,5 mA)
256
Max. bit rate
38400 bps
Short circuit strength
Permanent
Max. total cable length (300Bd, 200nF/km)
1200 m
7.7
Delivery identification
Trade name
Type name
Power supply
XC-RS485/422
XC-485-422
Internal or external supply
Figure 25: Example of expansion port RS485 label
NOTICE
