Asus A55M-E A55M-E User's Manual - Page 28

A55M-E USB2.0 connectors, A55M-E Serial port COM1 connector

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8. USB 2.0 connectors (10-1 pin USB56, USB78) 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. USB78 USB56 USB+5V USB_P6USB_P6+ GND NC USB+5V USB_P8USB_P8+ GND NC A55M-E PIN 1 PIN 1 USB+5V USB_P5USB_P5+ GND USB+5V USB_P7USB_P7+ GND A55M-E 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. COM1 CTS DSR DTR RXD RI PIN 1 RTS GND TXD DCD A55M-E A55M-E Serial port (COM1) connector 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 USB56, USB78)
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.
A55M-E
A55M-E Serial port (COM1) connector
PIN 1
COM1
DCD
TXD
GND
RTS
RI
RXD
DTR
DSR
CTS
A55M-E
PIN 1
USB+5V
USB_P8-
USB_P8+
GND
NC
USB+5V
USB_P7-
USB_P7+
GND
USB78
PIN 1
USB+5V
USB_P6-
USB_P6+
GND
NC
USB+5V
USB_P5-
USB_P5+
GND
USB56
A55M-E USB2.0 connectors