background image

2000

Reception/Transmission range must be changed according to environment.

Please check if system works properly for the site.

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

extend range.

Receiver/ Repeater

RC-20U/ TR-20U

Sensor unit

TD-20U

Repeater

TR-20U

Contact unit

TC-10U

Button unit

TS-10U

TR-20U INSTALLATION INSTRUCTIONS 

REPEATER

Please read this manual carefully before installation.

2   PARTS IDENTIFICATION

1   CAUTION AND WARNING

4   INSTALLATION

5   POWER CONNECTION

6   TEACH TRANSMITTER CODES TO TR-20U “LEARN MODE”

3  RECEPTION/ TRANSMISSION (REFERENCE)

2000ft (Open field, line of sight)

150ft (Stucco/Plaster construction)

100ft (Concrete construction)

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)

Wall Mounting

Use the mounting screw 

on a wall. Leave some 

length of the screw out 

for mounting hole of the 

TR-20U.

Desktop 

Pull out the stand on the back 

of the TR-20U and place it on 

any flat surface.

 

Note:

・ 

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

・ 

Single transmitter cannot be learned by multiple channel.

・ 

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

Erasing codes from TR-20U’s memory.

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

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

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

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

A) The TR-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.

 

TR-20U

Mounting 

hole

Stand

FRONT

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

BACK

Channel indicator 1

Channel indicator 2

Channel indicator 3

Switch 1

Switch 2
Adaptor 

Jack

Power

Switch

Power 

indicator

Function

AC Adaptor

Mounting screw

Switch 1

Activating “LEARN MODE” and

“TEACH MODE”
Activating for making selection

Switch 2

Activate “LEARN MODE” 

Teach the transmitter code to TR-20U

Channel 1

Channel 2

Channel 3

Channel 4

Activate the transmitter you wish to teach the receiver.

Receiver starts

in channel 1.

Press switch 2 to advance to the next channel 

and chime sound.

Press switch 2 to return to 

normal operation status.

FEATURES

Compatible with RC-20U (Chime box W/Relay), TD-20U (Indoor/Outdoor Sensor Transmitter), TS-10U 

  (Hand-Held Transmitter), TC-10U(Door/Window Transmitter) and also compatible with any units of 

  WIRELESS1000 series.

Identifies the channel (location) by LED lights (4 channels).

Able to learn 4 transmission codes.

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

Over 8 million codes possible, eliminates interference from neighbors.

Low battery indicator to recognize transmission units’ battery status. 

Powered by a 9VDC adaptor(Included).

Erasing all codes from TR-20U. (Return to the factory default)

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

CAUTION

1. Impact/Shock 

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

2. Electric Devices

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

    PCs, Microwave ovens, or any other device with an electric motors. 

    This may cause the unit to malfunction.

3. Transmission range

    Transmission range may decrease under the following conditions: 

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

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

      transmission unit and TR-20U.

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

4. Cleaning

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

    cloth and mild soap to clean.

WARNING

1. Harsh environments

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

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

    This may cause the unit to malfunction.

2. Tampering

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

    authority to operate the equipment.

3. Adaptor

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

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

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

Normal 

Operation Status

Blink

Light

Reviews: