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Chapter 2 USB Port Connectors The mainboard provides 2 USB 1.1 ports (plus 1 pin-headers for up to 2 additional USB connections). USB-compatible devices can be plugged di- rectly into these ports. 5 6 7 8 Pin Definition PIN SIGNAL DESCRIPTION 1 2 3 4 USB Ports 1 VCC 2 -Data 0 3 +Data 0 4 GND 5. VCC 6. -Data 1 7. +Data 1 8. GND +5V Negative Data Channel 0 Positive Data Channel 0 Ground +5V Negative Data Channel 1 Positive Data Channel 1 Ground RJ-45 NIC Port The mainboard provides one standard RJ45 port for connection to the Local Area Network (LAN). You can connect a network cable to the LAN port. Parallel Port Connector: LPT1 The mainboard provides a 25-pin female connector for LPT (parallel port). A parallel port is a standard printer port that supports Enhanced Parallel Port (EPP) and Extended Capabilities Parallel Port (ECP) modes. Pin Definition 13 25 PIN SIGNAL DESCRIPTION 1 1 STROBE Strobe 2 DATA0 Data0 3 DATA1 Data1 4 DATA2 Data2 5 DATA3 Data3 6 DATA4 Data4 14 7 DATA5 8 DATA6 Data5 Data6 9 DATA7 Data7 10 ACK# Acknowledge 11 BUSY Busy 12 PE Paper End 13 SELECT Select 14 AUTO FEED# Automatic Feed 15 ERR# Error 16 INIT# Initialize Printer 17 SLIN# Select In 18 GND Ground 19 GND Ground 20 GND Ground 21 GND Ground 22 GND Ground 23 GND Ground 24 GND Ground 25 GND Ground 2-8