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Electrical Interface Selection
The ULTRA COMM+I.PCI has the ability to be used as RS-232, RS-422 or
RS-485. This is selectable via DIP-switches, SW1. Please use the following
examples to configure your adapter.
RS-232
RS-422
4-Wire
RS-485
W/Echo
Figure 3 - RS-485, 4-Wire with Echo
2-Wire
ON
RS-485
W/Echo
OFF
Figure 4 - RS-485 2-Wire with Echo
Sealevel Systems ULTRA COMM+I.PCI
Card Setup
ON
OFF
1 2 3 4 5 6 7
1 2 3 T P P L L E
Figure 1- RS-232
ON
OFF
1 2 3 4 5 6 7
1 2 3 T P P L L E
Figure 2 - RS-422
ON
OFF
1 2 3 4 5 6 7
1 2 3 T P P L L E
1 2 3 4 5 6 7
1 2 3 T P P L L E
Card Setup
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