optex RC-20U Manuale Utente

Transmission range must be changed according to environment.

Please check if system works properly for the site.

In the case of insufficient transmission range, use TR-20U (Repeater unit) 

to extend its range.

Receiver/ Repeater

RC-20U/ TR-20U

Sensor unit

TD-20U

Repeater

TR-20U

Contact unit

TC-10U

Button unit

TS-10U

2000ft (Open field, line of sight)

150ft (Stucco/Plaster construction)

100ft (Concrete construction)

1400ft (Open field, line of sight)

150ft (Stucco/Plaster construction)

100ft (Concrete construction)

Use the mounting screw 

on a wall. Leave some 

length of the screw out 

for mounting hole of the 

RC-20U.

Pull out the stand on the 

back of the RC-20U and 

place it on any flat surface. 

Remove the connection 

terminal cover

. 

Use the terminal marked 

“COM-N.O.” for N.O. 

devices and “COM-N.C.” for 

N.C. devices.

 

Remove knockouts 

according to wiring 

needs.

 

Close the connection 

terminal cover. 

Each transmitter has a unique transmitter code which can be automatically learned by RC-20U.

The RC-20U’s zones must be taught to respond to the appropriate transmitter. (No transmitter is taught on default setting.)

・ Verify that each transmitter has been successfully learned by RC-20U by triggering them.

・ Each zone can learn max. 3 transmitters.

・ Zone indicator shows the activated transmitter by the number of flash. 

   (e.g. If learned second transmitter in zone 1 is activated, zone 1 indicator flashes twice.)

・ Single transmitter cannot be learned by multiple zones

・ RC-20U learned code will keep memorized even if turning OFF the power. 

A) The RC-20U automatically 

starts in “LEARN MODE”  

if no transmitter code has 

been programmed.

OR

B) Press and hold switch 1 

until the power indicator 

starts to flash.

Use only the power adaptor supplied with the 

product.

 

Any device with a zero 

voltage input terminal can 

be connected to this 

terminal. This may include 

electronic locks, 

emergency sounding 

devices, and automatic 

reporting equipment.

    Impact or Shock can cause severe damage or break the RC-20U.

    Use RC-20U at least 3ft (1m) away from electronic devices such as TVs, Radios, PCs, 

    Microwave ovens, or any other devices with an electric motors. 

    This may cause the unit to malfunction.

    Transmission range may decrease under the following conditions: 

    - Either transmission units or RC-20U installed on a metal surface. 

    - Presence of a steel door, reinforced concrete or other metal obstructions between 

      transmission units and RC-20U.

    - Places near strong radio sources such as broadcast stations or substation.

    Harsh cleaners such as paint removers or benzene may ruin the surface. Use a soft wet 

    cloth and mild soap to clean.

    Do not use the RC-20U outdoors, severe conditions as out of warranted 

    temperature, rapid temperature change, high humidity, or steam.

    This may cause the unit to malfunction.

    Any changes or modifications not expressly approved by OPTEX could void the user’s 

    authority to operate the equipment.

    Do not use any other AC adaptor except what is included.

FRONT

Note: When you recycle this product, please disassemble product and recycle according to state law.

BACK

AC Adaptor

Mounting screw

Activating “LEARN MODE” and

“TERMINAL OUTPUT DURATION

 MODE”.

Activating “VOLUME ADJUSTMENT 

MODE” and making selection.

The corresponding zone indicator flash rapidly at interval’s of 

1 sec according to the related transmitter.

Activate the transmitter you wish to teach the receiver.

(

(

Receiver starts

in Zone 1.

Press switch 2 to advance to the next zone 

and chime sound.

Press switch 2 to return to 

normal operation status.

Blink

Light

・ Compatible with TD-20U (Indoor/Outdoor Sensor Transmitter),TS-10U (Hand-Held Transmitter), 

・ Identifies 4 zones by 3 different tones and LED lights (3 normal zones + 1 continuous zone).

・ Able to learn 12 transmission codes (Each zone can learn 3 transmitters maximum). 

・ Automatic “Learning” function facilitates to preset transmission codes to RC-20U.

・ Over 8 million codes possible, eliminates interference from neighbors.

・ Latches into alarm with “Continuous mode” function.

・ Programmed ”Utility Output Mode” to inactivate chime tone (applicable for zone 3).

・ Adjustable duration for terminal output. 

・ Adjustable volume.

・ Low battery indicator to recognize transmission units’ battery status. 

・ Powered by a 9VDC adaptor(Included).

1) Hold down switch 1 until the power indicator starts to flash.

2) Press switch 2 until the appropriate zone indicator is lit.

3) Press switch 1 to erase. The zone indicator will start to flash.

    (Note: All programming in that particular zone will be erased.)

4) Press switch 2 a few times until the power indicator stops flashing and remains lit.

To erase all programming, turn on power while holding switch 1.