3-26
PFC-6075 • 5403593 • Rev C • 2/13
I/O Circuit Configuration
The PFC-6075 is equipped with two (2) I/O circuits that may be configured as either input or output devices. The panel has
ground fault detection on the I/O circuits. The impedance to ground for ground fault detection is 0 ohms.
Note:
The I/O circuits
only operate as Class B.
Refer to the figure shown below for a wiring example of an I/O circuit
configuration.
Example of I/O Circuit Wiring Example
Figure 25.
I/O 1 I/O 2
-
+ -
+
5.1k EOL
Potter Part #3005013
Notification
Appliance
5.1k EOL
Potter Part #3005013
Normally Open
Dry Contact
I/O Circuits as Inputs
When configured as inputs, the I/O circuits are used as a dry contact monitoring input.
Input Configuration Characteristics:
Maximum allowable wire length is 10,000 feet.
y
y
The selection of the contact input functions are the same as the MCM and SCM-4 modules.
y
y
I/O Circuits as Outputs
When configured as outputs, each I/O circuit is rated for one (1) amp continuous current at 24 vDC.
Output Configuration Characteristics:
Supervised and regulated by the main panel board.
y
y
Reverse polarity upon activation.
y
y
Circuits are power limited
y
y
Type of output is selectable. Strobes can be synchronized with all compatible strobe devices, including Potter/AMSeCO®,
y
y
Cooper Wheelock®, Gentex®, or System Sensor®.
I/O Maximum Impedance Formula
The maximum impedance is a
function
of the load
placed on the circuit. To calculate the maximum impedance, use the following
formula:
(Alarm Current of Notification Appliances) x (Wire Resistance) < 3 Volts
DWG #602-7A
