CyberResearch CPEN GX-333-X User Manual

Page of 98
CyberResearch
® 
CPU Cards 
 
CPEx GX-333-X 
CyberResearch, Inc.  
37 
25 Business Park Drive 
 
P: (203) 483-8815; F: (203) 483-9024 
Branford, CT USA 
 
www.cyberresearch.com 
20. CN20: Optical Drive Audio LINE_IN 
CN20 provides the connectivity to the audio input from optical drives.   
Table 2-23 
CN20 Audio LINE_IN Pinouts 
PIN 
DESCRIPTION 
CD_L 
2 CD_GND 
CD_GND 
4 CD_R 
 
Figure 2-29  CN20 Audio LINE_IN 
 
 NOTE: 
CN21 to CN24 are 90-degree connectors located on the slot bracket facing the 
rear-side of a chassis.  These connectors will be described in the following 
section.