
 
Chapter 2 Hardware Configuration 
 
 
 
Page: 2-8 
PCI-471LF USER
′
S MANUAL 
 
 
2-6. COM2 RI & VOLTAGE SELECTION 
 
JP7 : COM2 RI & Voltage Selection 
The selections are as follows: 
 
SELECTION
JUMPER 
SETTINGS 
JUMPER 
ILLUSTRATION
RI 1-2 
 
VCC12 3-4 
 
VCC 5-6 
 
***Manufacturing Default – RI.