The PRO3200 Input Module provides connections for 16 supervised inputs and two relay outputs. You can either mount the board in a rack or open and flat. If you rack-mount the board, only one edge is accessible for wiring; however, a flat mount increases the amount of available I/O slightly but significantly decreases the number of boards that can be mounted in one enclosure.
Starting at the bottom of the rack-mount side of the board:

• The first connector provides power to the board.
• The next connector provides communication with the Controller (PRO22IC OR PRO32IC).
• Continuing up this edge, the next eight connectors provide supervised input connections.
• The last connector on the rack-mount edge provides terminals for one relay output.

When the board is mounted flat, one additional relay output and two dedicated alarm inputs for cabinet tamper and power fault detection are provided on the opposite edge of the board.

Both form-C relay outputs are designed to handle dry-circuit signals. All of the inputs are capable of four-state supervision by using End-of-Line (EOL) resistor termination except the two dedicated inputs. Communication to the control panel is accomplished via an RS-485 interface. This board requires 12 VDC input power with an operating range of 10 to 14VDC.

When communication to the controller is lost, this board maintains all previous output settings at the time communication was lost.