Figure 2.23:Pci-1603 Rs-232 Mode Jumper Setting; Figure 2.25:Active Mode Jumper Setting - Advantech PCI-COMM Series User Manual

PCI-1603 RS-232/Current-loop Mode Selection
For RS-232 mode operations, the jumpers will be set as the default mode.
The jumpers on the 10*2 pin jumper must be set to A, B, C, D and E.
Figure 2.23: PCI-1603 RS-232 Mode Jumper Setting
To enable the channel to operate in the current-loop mode, you should set
F, G, H, I and J on the 10*2 pin jumpers.
Figure 2.24: PCI-1603 Current-loop Mode Jumper Setting
Then decide which mode the Tx and Rx will operate in. The options are
active or passive. In the active mode, the Tx or Rx will generate the cur-
rent requirement for data transfer over the link. In the passive mode, the
current is generated by the card at the other end of the link.
A and B are set to be active Rx, and E is set to be active Tx.
Figure 2.25: Active Mode Jumper Setting
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