American Megatrends IB892 User Manual page 13

JP6, JP7, JP8: RS232/422/485 (COM1) Selection
COM2, COM3, COM4 are fixed for RS-232 use only.
COM1 is selectable for RS232, RS-422 and RS-485.
The following table describes the jumper settings for COM1 selection.
(pin closed)
COM1
RS-232
Function
Jumper
Setting
3-5 & 4-6
3-5 & 4-6
IB892 User's Manual
RS-422
JP7: JP7:
1-2 3-4
JP6: JP6:
1-3 & 2-4
JP8: JP8:
1-3 & 2-4
INSTALLATIONS
RS-485
JP7:
5-6
JP6:
1-3 & 2-4
JP8:
1-3 & 2-4
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