12048321 Rev. 01 (Draft)
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4.15. RS485 (SER2) Connector
Reference Designator: J50
1.25mm Pitch Molex PicoBlade wire-to-board header, SMT, straight, 4 circuits
Description
The J50 connector provides SER2 UART of the SMARC module over MAX3443E RS485 transceiver.
Interfaces used
SER2 of the SMARC module converted to RS485
Connector drawing and contact-numbering scheme
Figure 24 Connector
– J50
Pinout according to Data Modul Inhouse-Standard DMIS09
J50
Pin
Signal / Function
Pin Type
Signal Description
1
VCC
Power 5.0V(S0)
Power supply for attached device; max. current 200mA
2
RS485_N
IO DP
Neg. signal of the differential RS485 datapair
3
RS485_P
IO DP
Pos. signal of the differential RS485 datapair
4
GND
GND
Connected to ground potential of the PCB