HP 8000 tower manual Universal Serial Bus Interface, USB Connector

Input/Output Interfaces

5.6Universal Serial Bus Interface

The Universal Serial Bus (USB) interface provides asynchronous/isochronous data transfers with compatible peripherals such as keyboards, printers, or modems. This high-speed interface supports hot-plugging of compatible devices, making possible system configuration changes without powering down or even rebooting systems.

These systems provide ten externally-accessible USB ports; four front panel USB ports (which may be disabled) and six USB ports on the rear panel. In addition, the SFF and CMT form factors support a media reader accessory that uses two USB ports through a system board header connection. The USB ports are dynamically configured to either a USB 1.1 controller or the USB

2.0controller depending on the capability of the peripheral device. The 1.1 controllers provide a maximum transfer rate of 12 Mb/s while the 2.0 controller provides a maximum transfer rate of 480 Mb/s. Table 5-5 shows the mapping of the USB ports.

USB

		Table 5-5.
		ICH10 USB Port Mapping
ICH10
Controller	Signals	USB Connector Location (all form factors
USB 1.1 #1,	Data 0P, 0N	System board header P150
USB 2.0 #1
	Data 1P, 1N	System board header P150
USB 1.1 #2	Data 2P, 2N	Front panel
USB 2.0 #1
	Data 3P, 3N	Front panel
USB 1.1 #3	Data 4P, 4N	Front panel
USB 2.0 #1
	Data 5P, 5N	Front panel
USB 1.1 #4	Data 6P, 6N	Rear panel, quad
USB 2.0 #2
	Data 7P, 7N	Rear panel, quad
USB 1.1 #5	Data 8P, 8N	Rear panel, quad
USB 2.0 #2
	Data 9P, 9N	Rear panel, quad
USB 1.1 #6	Data 10P, 10N	Rear panel, dual
USB 2.0 #2
	Data 11P, 11N	Rear panel, dual

5.6.1 USB Connector

These systems provide type-A USB ports as shown in Figure 5-7.

1 2 3 4

Figure 5-7. Universal Serial Bus Connector (as viewed from rear of chassis)

Technical Reference Guide www.hp.com 5-9