User`s manual

Chapter 2 Hardware Configuration
Page: 2-10
Prox-1750 USER'S MANUAL
2-6. JCOM1 & COM2(JCOM2) RI & VOLTAGE SELECTION
JP4: JCOM1 & COM2(JCOM2) RI & Voltage Selection
The selections are as follows:
COM PORT SELECTION
JUMPER
SETTINGS
JUMPER
ILLUSTRATION
RI 7-9
9
10
1
2
JP4
5V 1-3
9
10
1
2
JP4
JCOM1
12V 3-5
9
10
1
2
JP4
*** Manufactory default -- RI.