American Fibertek N-TAH - Manual (Page 9)

9
Connecting contacts
The N-TAH has two ports for contact input (alarms) and contact output (aux). These
ports are five pin headers with supplied plugs with screw terminals. Customer
connections to the contact ports are made by securing stripped wire ends into the screw
terminals.
Note: All connections to the screw terminals should be made with the terminal plug
removed from the unit, and with power disconnected from any customer equipment
being connected to the terminals.
Connecting an alarm input
The contact blocks have two terminals which are used as an alarm/contact input.
Viewing the left side of the N-TAH, these two terminals are the two on the left side of
each contact block. These terminals are intended to be connected to customer
equipment which will make or break a connection between the two terminals, such as a
door open switch or motion detector contact output. It can be designated through the
configuration web page if an alarm condition will correspond to the connection being
made or the connection being broken.
To connect an alarm source such as a door switch or motion detector to the N-TAH, use
two wires, 16-28 AWG in size. Strip about ¼” of the insulation from the end of the wires
before inserting them into the terminal block. Tighten the terminal screws to secure the
wires in the terminal block.