Power Requirements
Specific power requirements must be met for the entry station to function correctly. If these are not met there is a
risk of damaging the unit or encountering performance issues.
Power requirements are listed in the
Technical Specifications
Voltage drop between the power supply and the entry station may cause the entry station to receive insufficient
voltage. If this occurs the display may be faint or flickering and the unit may reboot unexpectedly.
When designing the supply of power to the entry station, ensure that you account for the following factors which
may contribute to voltage drop:
⦁
The run length (length of cable from power supply to entry station)
⦁
The composition of the wire
⦁
The CSA (cross-sectional area) / AWG of the cable
⦁
The temperature of the cable and how the mechanical protection applied to the cable relates to the
temperature
After installation, we recommend that you measure the input voltage at the entry station to ensure that it is
sufficient for correct operation.
12V DC 4A Power Supply
Power is supplied to the entry station via a 12V DC power supply capable of supplying a minimum of 4A.
A Protege power supply module is recommended for this purpose, although any clean 12VDC 4A power supply is
suitable. When using a Protege power supply, connect V+ to the red wire and V- to the black wire of the 9-PIN
expansion cable, as illustrated below.
B+
B-
L
N
NA
N+
N-
NB
Power Supply
V1+
V-
V1+ V1+ V1+ V1+ V1+
V-
V-
V-
V-
V-
Mains Input
Red: 12VDC
Black: 0V GND
Green: Reserved
White: Reserved
Orange: Postal Lock
Brown: Reserved
Yellow: Reserved
Purple: Reserved
Blue: Output 1
Entry Station
Gel Cell Backup Battery
+
-
If using a Protege power supply module, a battery backup must be connected to the module network to provide a
monitored supply. The battery plays an important role in power conditioning and provides a continuous source of
power in the event of a power outage.
PRT-ENTR-17 | Protege Vandal Resistant Touchscreen Entry Station | Installation Manual
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