2.3. Device rear panel

Rear panel distribution is different depending on the versions of the product chosen:

BVA 2 relays

4 position connector
4 position connector, including 2 relay connections (relay 1 and 2) and two independent common contacts.

BVA 12 relays

4 position connector
4 position connector, including 2 relay connections (relay 1 and 2) and two independent common contacts (COM1 and COM2). In such a way that COM1 contact corresponds to relay 1 and COM2, to relay 2.

10 position connector
10 position connector, which corresponds to relay connections (from relay 3 to 12). These connections share the same common contact COM2.