35
FUNCTIONAL ARCHITECTURE
Table 2.9. Mouse Connector Pinout
PIN
DESCRIPTION
1
MOUSE-DATA
2
N/C
3
LOGIC-GROUND
4
MOUSE-Vcc
5
MOUSE-CLOCK
6
N/C
7
SHELL-GROUND
1
8
SHELL-GROUND
1
9
SHELL-GROUND
1
1
: Pins 7-9 are connector-mounting hole pins connected to the metal
connector housing.
2.9.5.
Universal Serial Bus Connectors
The Universal Serial Bus (USB) is a communications architecture that gives
a PC the ability to interconnect a variety of devices via a simple four-wire
cable. The USB is actually a two-wire serial communication link that runs at
12 megabits (Mbs) per second. USB protocols can configure devices at
startup or when they are plugged in at run time. These devices have been
broken into five major classes:
§
Monitors
§
Communication devices
§
Audio
§
Human input
§
Mass storage
More classes will be identified as the USB Standard matures.
The IN440EX-D is equipped with two USB Serial Ports. This permits
connection of two USB peripheral devices directly to the system without an
external hub. If more devices are needed, an external hub can be connected
to either of the built-in ports.
Reference: J3, (USB-1) + USB2
Connector Type: USB CONN, DUAL
Connector Part Number: Molex, 87525-001 or equivalent
Table 2.10. USB-1 & 2 Connector Pinout
PIN
DESCRIPTION
COMMENT
1
VCC
Cable power