RES-12XR3 Installation Manual - Configuration 7
Version 1.1
A-2
Themis Computer
A.2
USB Ports
The RES-12XR3 supports two USB (Universal Serial Bus) ports (see
for
pinouts), USB 0 and USB 1, on the rear I/O panel. In addition, six USB ports are
supported from internal headers: USB 2/3, USB 4/5, USB 6, and USB 7.
Pinout descriptions are listed in
.
A.3
Serial Ports
The RES-12XR3 supports one
male
DB9 serial port connector on the rear I/O panel
(see
)—TTYA (COM 1). Another serial port TTYB (COM 2) is accessed
from the motherboard. COM 1 signal definitions are listed in
Figure A-1.
USB Connector Pinout
Table A-2.
USB Connector Signal Definitions
Pin
Signal Name
Pin
Signal Name
1
+5V
3
PO+
2
PO–
4
GND
Figure A-2.
COM 1 Serial Connector Pinout
Table A-3.
COM 1 Serial Connector Signal Definitions
Pin
Signal Name
Pin
Signal Name
Pin
Signal Name
1
DCD
4
DTR
7
RTS
2
RXD
5
GND
8
CTS
3
TXD
6
DSR
9
RI
Содержание RES-12XR3
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