Asus PRL-DL PRL-DL M/B User Guide - Page 45
Connectors
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2.8 Connectors This section describes and illustrates the internal connectors on the motherboard. Always connect ribbon cables with the red stripe to Pin 1 on the connectors. Pin 1 is usually on the side closest to the power connector on hard drives and CD-ROM drives, but may be on the opposite side on floppy disk drives. 1. Floppy disk drive connector (34-1 pin FLOPPY1) This connector supports the provided floppy drive ribbon cable. After connecting one end to the motherboard, connect the other end to the floppy drive. (Pin 5 is removed to prevent incorrect insertion when using ribbon cables with pin 5 plug). FLOPPY1 ® PRL-DL PIN 1 NOTE: Orient the red markings on the floppy ribbon cable to PIN 1. PRL-DL Floppy Disk Drive Connector 2. Serial port 2 connector (10-1 pin COM2) This connector accommodates a second serial port using an optional serial port bracket. Connect the bracket cable to this connector then install the bracket into a slot opening at the back of the system chassis. ® PRL-DL COM2 PIN 1 PRL-DL Serial COM2 Connector ASUS PRL-DL motherboard user guide 2-19