COMMELL MPX-24794S - Manual (Page 27)

MPX-24794S User’s Guide Ver 1.10
Taiwan Commate Computer Inc. 22
Figure 15 How to use OALUSB-H4 cable
2.4 Optional GPIO Signal Isolation Boards
In the real practical situations, cases are connecting signal isolation boards to MPX-
24794S cards before connecting to those input and /or output devices. Both ADP-
GPIO4I4O5V and ADP-GPION8I5V boards are designed for this purpose.
MPX-24794S card provides a convenient way to connect to the ADP-GPION4I4O5V
and ADP-GPION8I5V signal isolation boards. The OAL-24794S-ADP cable is
designed specially to connect to these two boards.
2.4.1 ADP-GPION4I4O5V (option)
ADP-GPION-4I4O5V is a signaling isolation board for Commell GPIO products.
This board has four photo-couple input connectors and four relay output connectors.
Four photo-couple diodes protect input lines from the damage caused by ElectroStatic
Discharge (ESD) and other transients. Four relays feature high current contacts
capability.