SECO-LARM USA ST-LA105-TTQ Manuale Utente

®

Installation Manual

Voltage Converters

Introduction:
The ENFORCER Voltage Converter is a low voltage step-down voltage converter. It converts low voltage AC or
DC to 

one of three

 different regulated DC outputs. It is useful for CCTV DC cameras, access controls, as well

as many other applications where low DC voltage is required.

• Adjustable voltage output to compensate

for voltage drop.

• Dual-color LED power output indicator:

– Red indicates 5/12 VDC output.
– Blue indicates 24 VDC output.

• Green power input LED indicator.

Features:
• Selectable 5, 12, or 24 VDC output via jumper.
• Built-in overload protection.
• Regulated and filtered output.
• Output current protection:

  – 0.5 Amp for ST-LA105-TTQ
  – 1.0 Amp for ST-LA110-TTQ

1. Remove the cover by simultaneously pressing the

2 indented slots located on the side of the cover.

2. Set the desired output voltage to 5, 12, or 24 VDC.

See table 3. The factory default output setting is
12 VDC.

3. Connect the output wires from the power supply to the

power input terminal blocks. See specification chart
for the power requirements. Turn on the power of the
power supply.

4. Use table 2 to check the LED status for the input

and output voltage.

5. To avoid potential damage, use a voltage meter

to check if the voltage reading at the input and
output terminal blocks is correct.
Observe correct polarity.
Note: 1.  Use between 16 AWG and 26 AWG wire

 for the input and output terminal blocks.

          2.  Use the included SECO-LARM DC pigtail

 connector for easy installation.

6. Connect device to the power output terminal blocks.
7. If the output voltage is low, then turn the rotary

knob clockwise to increase the voltage or counter-
clockwise to decrease the voltage.
Note: If the output voltage set by the jumper is
higher than the input voltage, then the output voltage
reading will be the same as that of the input voltage.

8. Replace the plastic cover on the voltage converter

and secure it in the desired location.

  

Power output LED (red for 5 or 12 VDC, blue for 24 VDC)

      1

1

/

2

” x 1

31

/

32

” x 

29

/

32

”

 

 

 

Jumper Setting

 

A       B        C         D

Output
Voltage

24 VDC

 

  5 VDC

 12 VDC

 

5/12/24 VDC (pre-set 12 VDC), selectable by jumper

1A@5/12 VDC

 

 (500mA  for ST-LA105-TTQ, 1A for ST-LA110-TTQ)

LED indicators:

Current protection:

Size:

Output current:

Input voltage:

Output voltage:

Connector:
Overload protection:

 

 8~30 VDC/VAC for   5 VDC

15~30 VDC/VAC for 12 VDC
24~30 VDC/VAC for 24 VDC

ST-LA105-TTQ:

Power input LED (green)

PTC (Positive Temperature Coefficient)

     

  

(46 x 50 x 23.5 mm)

Terminal blocks

 

Built-in

ST-LA110-TTQ:

500mA@24 VDC

500mA@5/12/24 VDC

Green

 

LED colors

  Indications

 

Red
Blue

 Output voltage is 5 or 12 VDC.

Output voltage is 24 VDC.

Input power is connected.

    Adjustable voltage range

 

  

5  VDC

  4.5 ~

  5.6 VDC

12  VDC

12.2 ~ 13.5 VDC

24  VDC

23.0 ~ 25.2 VDC

Output voltage