Acer Veriton X4620G Acer Veriton X4620G Desktop Service Guide - Page 117

COM2 : Onboard serial port header Connect a serial port extension bracket to this header to add a second serial port toyour system. Pin Signal Name 1 DCD 2 SIN 3 SOUT 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 RI 10 Key Function Data Carrier Detect Serial Input Serial Output Data Terminal Ready Ground Data Set Ready Request to Send Clear to Send Ring Indicator No pin OBR1: One button recovery jumper Pin Signal Name 1 OBR 2 GND PRINTER: Onboard parallel port header This is a header that can be used to connect to the printer, scanner or other devices. Pin Signal Name 1 STROBE 2 PD0 3 PD1 4 PD2 5 PD3 6 PD4 7 PD5 8 PD6 9 PD7 10 ACK 11 BUSK 12 PE 13 SLCT Pin Signal Name 14 ALF 15 ERROR 16 INIT 17 SLCTIN 18 Ground 19 Ground 20 Ground 21 Ground 22 Ground 23 Ground 24 Ground 25 Ground 26 Key 109 Chapter 5