Jetway Computer JBC370F33 - Manual (Page 12)

7
INVERTER1 LVDS Inverter Connector 7-pin Block
VGA1 VGA Port Header 15-pin Connectors
Chapter 2
Hardware Installation
2-1 Jumper Setting
(1) JCOM1: COM1 Port RS232/422/485 function select
3-4 closed : RS485
JCOM1
1
1-2 closed: RS232
1 1
5-6 closed : RS422
(2) JCOMP1: COM1 Pin 9 function select
3-4 closed : +12V
JCOMP1
1-2 closed: RS232 5-6 closed : +5V
1
1 1