PCM-9577

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 127external devices. The USB interfaces comply with USB specificationRev. 1.1, and are fuse protected.The USB interface is accessed through two 5 x 2-pin flat-cable connectors,CN1 (USB1, 2); and CN2 (USB3, 4) in the PCM-9577F model. ThePCM-9577FG Support Embedded USB interface in PCM-9577FGmodel which used one 9 x 2-pin header connector for USB 3, 4 and one 5x 2 pin header connector for USB 1, 2. You will need an adapter cable ifyou use a standard USB connector. The adapter cable has a 5 x 2-pin connectoron 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:OverviewThe Embedded USB interface Specification defines an alternate implementationfor small form factor USB Module referred to in this specificationas a Embedded USB ModuleThis specification uses a qualified sub-set of the same signal protocol,electrical definitions, and configuration definitions as the USB 2.0 Specification.The primary differences between a standard USB 2.0 and a EmbeddedUSB Interface are:* Support more one Vcc +5V signal in the Embedded USB Interface* Support Vcc 3.3V and OVER CURRENT signal in the EmbeddedUSB Interface2.23.1.1 Features and Benefits*Upgrade ability. Embedded USB Module are removable and upgradeablewith available“new technology” cards.* Flexibility. A single Mini PCI interface can accommodate varioustypes of communications, Flash memory storage, and Industry control I/O devices.* Serviceability. Mini PCI Cards can be removed and easily serviced ifthey fail.PCM-9577 User’s Manual 24