Advantech PCM-9577, User Manual

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PCM-9577 User’s Manual 24
2.23 USB connectors (CN1, CN2)
The PCM-9577 board provides up to four USB (Universal Serial Bus)
ports which support USB 1.1 (PCM-9577F) or USB 2.0 (PCM-9577FG).
This gives complete Plug and Play, and hot attach/detach for up to 127
external devices. The USB interfaces comply with USB specification
Rev. 1.1, and are fuse protected.
The USB interface is accessed through two 5 x 2-pin flat-cable connec-
tors, CN1 (USB1, 2); and CN2 (USB3, 4) in the PCM-9577F model. The
PCM-9577FG Support Embedded USB interface in PCM-9577FG
model which used one 9 x 2-pin header connector for USB 3, 4 and one 5
x 2 pin header connector for USB 1, 2. You will need an adapter cable if
you use a standard USB connector. The adapter cable has a 5 x 2-pin con-
nector on one end and a USB connector on the other.
The USB interfaces can be disabled in the system BIOS setup.
2.23.1 Embedded USB interface:
Overview
The Embedded USB interface Specification defines an alternate imple-
mentation for small form factor USB Module referred to in this specifica-
tion as a Embedded USB Module
This specification uses a qualified sub-set of the same signal protocol,
electrical definitions, and configuration definitions as the USB 2.0 Speci-
fication.
The primary differences between a standard USB 2.0 and a Embedded
USB Interface are:
*
Support more one Vcc +5V signal in the Embedded USB Interface
* Support Vcc 3.3V and OVER CURRENT signal in the Embedded
USB Interface
2.23.1.1 Features and Benefits
*Upgrade ability. Embedded USB Module are removable and upgrade-
able with available“new technology” cards.
* Flexibility. A single Mini PCI interface can accommodate various
types of communications, Flash memory storage, and Industry control I/
O devices.
* Serviceability. Mini PCI Cards can be removed and easily serviced if
they fail.