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© Sealevel Systems, Inc. 12009-001-KT Manual | SL9679 10/2022
Header (P1) - Serial Ports
The carrier board has two serial ports intended for debugging purposes. Port 1 is a standard RS-232 serial
port, while Port 2 is a CMOS serial port. Transmit, Receive, and Ground are available on a Tyco Micro-MaTch
6-pin header connector (
TE Connectivity Part# 7-2178711-6
). Modem control signals are not implemented.
The serial ports are derived from the COM Express module and are enumerated by the operating system via
the standard Intel serial port driver. Mating connector is
TE Connectivity Part# 2178712-6.
Pin
Signal
Notes
1
TX 1
Port 1 Transmit (RS232)
2
RX 1
Port 1 Receive (RS232)
3
GND
Ground
4
GND
Ground
5
GND
Ground
6
GND
Ground
7
TX 2
Port 2 Transmit (3.3V CMOS)
8
RX 2
Port 2 Receive (3.3V CMOS)
Do not connect an RS232 device to the CMOS port. RS232 signal levels exceed that of CMOS
and therefore may damage the CMOS port.
Serial Ports Header (P1) Location
Serial Ports Header (P1) Drawing
Содержание 12009-001-KT
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