Asus A55BM-A USB3 A55BM-A USB3 User's Manual - Page 28

USB 2.0 connectors 10-1 pin USB34, USB56, Serial port connector 10-1 pin COM

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8. USB 2.0 connectors (10-1 pin USB34, USB56) These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2.0 specification that supports up to 480Mbps connection speed. USB56 USB34 USB+5V USB_P5USB_P5+ GND NC USB+5V USB_P3USB_P3+ GND NC A55BM-A/USB3 PIN 1 PIN 1 USB+5V USB_P6USB_P6+ GND USB+5V USB_P4USB_P4+ GND A55BM-A/USB3 USB2.0 connectors Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard! The USB 2.0 module is purchased separately. 9. Serial port connector (10-1 pin COM) This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis. COM PIN 1 RXD DTR DSR CTS DCD TXD GND RTS RI A55BM-A/USB3 A55BM-A/USB3 Serial port connectors The COM module is purchased separately. 1-20 Chapter 1: Product introduction

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1-20
Chapter 1: Product introduction
8.
USB 2.0 connectors (10-1 pin USB34, USB56)
These connectors are for USB 2.0 ports. Connect the USB module cable to any of
these connectors, then install the module to a slot opening at the back of the system
chassis. These USB connectors comply with USB 2.0 speciļ¬cation that supports up to
480Mbps connection speed.
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB 2.0 module is purchased separately.
9.
Serial port connector (10-1 pin COM)
This connector is for a serial (COM) port. Connect the serial port module cable to this
connector, then install the module to a slot opening at the back of the system chassis.
The COM module is purchased separately.
A55BM-A/USB3
A55BM-A/USB3 Serial port connectors
PIN 1
COM
D
C
D
D
X
T
D
N
G
S
T
R
I
R
D
X
R
R
T
D
R
S
D
S
T
C
A55BM-A/USB3
A55BM-A/USB3 USB2.0 connectors
PIN 1
USB+5V
USB_P5-
USB_P5+
GND
NC
USB+5V
USB_P6-
USB_P6+
GND
USB56
USB34
PIN 1
USB+5V
USB_P3-
USB_P3+
GND
NC
USB+5V
USB_P4-
USB_P4+
GND