User`s guide

ACLD-9185 • 5
1.2.4 Connect to add-on card
The ACLD-9185 can be controlled with NuDAQ ISA or PCI add-on cards.
The configurations of connection are shown in the following diagram.
Please make sure to connect to the digital output port of the add-on cards
with correct pin-assignment.
ACLD-9185
1.3 Usage
The function diagram of Form C relays on the ACLD-9185 is shown here.
NO
NC
COM
Control Bit = High (1)
NO
NC
COM
Control Bit = Low (0)
This relay has three contacts: NC (Normal Closed), NO (Normal Open),
and COM (Common). The COM post, located at the middle, can make
contact either NO post or NC post. When the control bit is high (1), the
COM post and NO post are contacted. If the control bit is low (0), the
COM post and NC post make contact.
In normal power-up and reset, the relay is in low status.