Intel IB935 Computer Hardware User Manual


 
INSTALLATIONS
JP1, JP2, JP3: RS232/422/485 (COM2) Selection
COM1 is fixed for RS-232 use only.
COM2 is selectable for RS232, RS-422 and RS-485.
The following table describes the jumper settings for COM2 selection.
COM2
Function
RS-232 RS-422 RS-485
Jumper
Setting
(pin closed)
JP1:
1-2
JP2:
3-5 & 4-6
JP3:
3-5 & 4-6
JP1:
3-4
JP2:
1-3 & 2-4
JP3:
1-3 & 2-4
JP1:
5-6
JP2:
1-3 & 2-4
JP3:
1-3 & 2-4
JP4: Configure and Recovery (Factory use only)
JP9 Setting Function
Pin 1-2
Short/Closed
Normal (default)
Pin 2-3
Short/Closed
Configure
Open
Recovery
JP5: Power ON Setting
JP17 Setting Function
Pin 1-2
Short/Closed
Power on by syste
m
button
Pin 2-3
Short/Closed
Power on by power
supply AC on
10 IB935 User’s Manual