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33.2
Power and Alarm Inputs
The LNL-3300 accepts 12 to 24 VDC for power. Locate power source as close to the unit as possible.
Connect power with minimum of 18 AWG wires. Inputs TMP and FLT are used for monitoring cabinet
tamper and power failure with normally closed contacts. These two inputs are for contact closure monitoring
only, and do not use EOL resistor(s). If these inputs are not used, install a short piece of wire at the input to
indicate safe condition.
Observe POLARITY on VIN!
33.3
Memory Backup Battery
Remove the factory-installed plastic safety strip from the memory backup battery. This plastic strip prevents
the battery from being effectively seated. The battery will not function properly until the plastic strip is
removed. When the battery is enabled, event memory is protected.
33.4
Configuration
The controller is configured through jumpers, DIP switches, and web browser.
33.4.1
Setting DIP Switches
Set DIP switches as required. The following chart describes the use of each DIP switch.
Wiring ports 2 and 3
TR2+
TR2-
GND
TR3+
TR3-
GND
Earth
PORT 2
Ground
2-WIRE RS-485
Wire with 24 AWG, stranded
Wiring for power, power fault, and cabinet tampering
+
VIN
-
GND
TMP
GND
FLT
GND
Hardware Installation Guide
TR2+
TR2-
GND
TR3+
TR3-
GND
PORT 3
2-WIRE RS-485
12 to 24 VDC (wire pow
stranded twisted pair, 1
CABINET
TAMPER
POWER
FAULT
Earth
Ground
175
revision 7 —
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