Download Advantech PCA-6155 Specifications

RS-232/422/485 connection (COM2)
COM2 is an RS-232/422/485 serial port. The specific port type is
determined by jumper settings, as detailed in Chapter 1. The
following table shows the pin assignments for COM2.
RS-232/485 connector pin assignments
Pin
RS-232
RS-422/485
1
RLSD
TX - or DATA -
2
DSR
3
RX
4
RTS
5
TX
6
CTS
7
DTR
8
RI
9
GND
GND
10
NC
NC
TX + or DATA +
RX +
RX -
Power connectors CN11
If you prefer not to acquire power through PCA-6151’s backplane
via the gold H-connectors, CN11 also provide power input
connectors for +5 V and +12 V.
Warning! Before making the connection, make sure the
voltage is absolutely correct and matched with
the right connector.
Chapter 2 Connecting Peripherals
19