protech PS3100 Series - Page 26

Chapter 2 Hardware Configuration
PS3100 SERIES USER’S MANUAL
Page: 2-9
2-5. COM PORT RI & VOLTAGE SELECTION
JP_COM1 , JP_COM2, JP_COM3: COM Port 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.