Chapter 2, Hardware installation, 1 jumper setting – Jetway Computer JBC370F33 User Manual
Page 12: 2) jcomp1: com1 pin 9 function select
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