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SX-AuroraTSUBASA A300-8 User's Guide
Universal Serial Bus (USB) Ports
Four USB 3.0 port (USB1/2, 3/4) are located on the I/O back panel. A Type A internal USB
2.0 header provides front access. Connect appropriate cables here to use USB support. (USB
cables are not included).
Back Panel USB (3.0)
Pin Definitions
Pin#
1
Definition
VBUS
Pin#
10
Definition
Power
2
D-
11
USB 2.0 Differential Pair
3
D+
12
4
Ground
13
Ground of PWR Return
5
StdA_SSRX-
14
SuperSpeed Receiver
6
St
15
Differential Pair
7
GND_DRAIN
16
Ground for Signal Return
8
StdA_SSTX-
17
SuperSpeed Transmitter
9
St
18
Differential Pair
USB (2.0)
Pin Definitions
Pin#
Definition
1
Vcc
2
Data-
3
Data+
4
Ground
Unit Identifier Switch/UID LED Indicator
A Unit Identifier (UID) switch and a rear UID LED (LE1) are located on the I/O back panel. A
front UID switch is located on pins 7 & 8 of the front panel control (JF1). When you press the
rear UID switch, both front and rear UID LEDs will be turned on. Press the UID switch again to
turn off the LED indicators. The UID indicators provide easy identification of a system that may
be in need of service.
UID LED
Pin Definitions
Color
Status
Blue: On
Unit Identified
