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5.7
COM Headers
The conga-PA5 provides two COM port headers (X15, X16) routed from the SoC through a transceiver (ISL3333). Both ports support RS-232,
RS-422, and RS-485. The ports can be configured in the BIOS setup menu.
Note
The validated Intel
®
Table 21
X15, X16 Pinout Description
Pin
RS232 Signal
1
GND
2
TXD
3
RTS#
4
CTS#
5
RXD
Connector Type
X15, X16: 5x1 pins, 1.25mm pitch (Molex 53261-0571); Possible Mating Connector: Molex 51021-0500
Caution
If termination is required, a 120Ohm termination must be added externally across pin 4 (RX+) and 5 (RX-).
Note
congatec offers adapter cables for the COM ports (see section 1.2.3 "Optional Cables) with embedded termination (for RS422 / RS485) and
without embedded termination (for RS232).
Copyright © 2017 congatec GmbH
HSUART driver is available at www.congatec.com.
RS422 / RS485 Signal
GND
TX-
TX+
RX+
RX-
X15, X16
PA50m112
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