Jbat1: Cmos Setup; Jp1: Compactflash Master/ Slave Select; Jv1: Com1 Power Source Special Support; Jrs1: Com 2 Rs-232/422/485 Select - ROHS ITX-i9453 User Manual

Installation
Jumpers

2.2 JBAT1: CMOS Setup

Pin Mode
1-2 Keep CMOS (Default)
2-3 Clear CMOS

2.3 JP1: CompactFlash Master/ Slave Select

Pin Master
1-2 Short

2.4 JV1: COM1 Power Source Special Support

Pin Mode
1-2 POS: 5V on Pin1
2-3 Standard (Default)

2.5 JRS1: COM 2 RS-232/422/485 Select

It can be configured COM 2 to operate in RS-232, RS-422 or RS-485 mode
Pin
1-2 (Short)
3-4 (Short)
5-6 (Short)
16
Slave
Open (Default)
Mode
RS-232 (Default)
RS-422
RS-485
1
1
1
1
5
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