Impulse 7108 - Manual (Page 4)

Card Setup
Sealevel Systems ULTRA COMM+I.LPCI Page 2
Card Setup
Electrical Interface Selection
The ULTRA COMM+I.LPCI has the ability to be used as RS-232, RS-422 or RS-485. This is selectable via
DIP-switch SW1. Please use the following examples to configure your adapter.
Figure 1- RS-232
Figure 2 - RS-422
Figure 3 - RS-485, 4-Wire with Echo
Figure 4 - RS-485 2-Wire with Echo
Figure 5 - RS-485, 2-wire without Echo
1 2 3 4 5 6 7
ON
OFF
8 9 10
1 2 3 T P P L L E
RS-232
1 2 3 4 5 6 7
ON
OFF
8 9 10
1 2 3 T P P L L E
RS-422
1 2 3 4 5 6 7
ON
OFF
8 9 10
1 2 3 T P P L L E
4-Wire
RS-485
W/Echo
1 2 3 4 5 6 7
ON
OFF
8 9 10
1 2 3 T P P L L E
2-Wire
RS-485
W/Echo
1 2 3 4 5 6 7
ON
OFF
8 9 10
1 2 3 T P P L L E
2-Wire
RS-485
NO Echo