User manual

10
English Seriell RS-422/485 PCIe Board
3. Layout and Jumpersetting
3.1 Layout
JP4: S1
RS-422/485
Mode Selector
JP2, JP5:
RS-485TXD Control
J2:
Factory Use Only
JP8:
S1 Terminator
Enable / Disable
J4: Port 2 (S2)
DB9 male
RS-422/485 Port
J3: Port 1 (S1)
DB9 male
RS-422/485 Port
JP9:
S2 Terminator
Enable / Disable
JP7: S2
RS-422/485
Mode Selector
JP3, JP6:
RS-485TXD Control
3.2 Octopus cable (DB25 female to 2 x DB9 male)
P2
Port 1 (DB 9 pin male connector)
Port 2 (DB 9 pin male connector)
To J2 female connector
(DB 25 male connector)
P1
P1
P2