Optex RC-20U-ADAPTOR Installation Instructions

2000

CHIME BOX W/RELAY RECEIVER

RC-20U INSTALLATION INSTRUCTIONS

Please read this manual carefully before installation.

1 CAUTION AND WARNING

WARNING

1. Harsh environments

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.

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.

2 PARTS IDENTIFICATION

Zone indicator 1

Zone indicator 2

Zone indicator 3

Power
indicator

Speaker

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

FRONT

Switch 1

Power
Switch

Switch 2

Adaptor
Jack

Mounting
hole

Connection
terminal
cover

Output
connection
terminal
(Inside of the
cover)

BACK

4 INSTALLATION

Wall Mounting

Use the mounting screw
on a wall. Leave some
length of the screw out
for mounting hole of the
RC-20U.

Function

Switch 1

Switch 2

Stand

Desktop

Pull out the stand on the
back of the RC-20U and
place it on any flat surface.

FEATURES

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

TR-20U(Repeater), TC-10U(Door/Window Transmitter) and any transmission units of WIRELESS1000 series.

・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).

CAUTION

1. Impact/Shock

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

2. Electric Devices

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.

3. Transmission range

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.

4. Cleaning

Harsh cleaners such as paint removers or benzene may ruin the surface. Use a soft wet
cloth and mild soap to clean.

3 TRANSMISSION RANGE (REFERENCE)

Transmission range must be changed according to environment.

Activating “LEARN MODE” and
“TERMINAL OUTPUT DURATION
MODE”.
Activating “VOLUME ADJUSTMENT
MODE” and making selection.

AC Adaptor

Mounting screw

Please check if system works properly for the site.
In the case of insufficient transmission range, use TR-20U (Repeater unit)
to extend range.

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)

Receiver/ Repeater

RC-20U/ TR-20U

5 POWER CONNECTION

Use only the power adaptor supplied with the
product.

Terminal connection

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.

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.

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

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.)

Teach the transmitter code to RC-20U

Activate “LEARN MODE”

A) The RC-20U automatically

starts in “LEARN MODE”
if no transmitter code has
been programmed.

B) Press and hold switch 1

OR

until the power indicator
starts to flash.

Note:

・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.

Zone 1 Zone 2 Zone 3

Receiver starts
in Zone 1.

Activate the transmitter you wish to teach the receiver.

The corresponding zone indicator flash rapidly at interval’s of

(

1 sec according to the related transmitter.

Press switch 2 to advance to the next zone
and chime sound.

Erasing codes from RC-20U’s memory.

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.

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

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

(

Zone 4

(Special/ refer 8 )

Press switch 2 to return to
normal operation status.

Normal

Operation Status

Light

Blink

7 VOLUME ADJUSTMENT

This adjustment is applicable for zone 1 to 3 as a group and
zone 4 independently.
There are volume setting from Level 0 to 4. (Default setting for
zone 1-3 is level 3, for zone 4 is level 4.)

RC-20U will automatically return to normal operation status after 5 seconds without
any operation. (Zone indicators will go OFF and power indicator will remain lit.)

Press switch 2 to change volume level (Level 4 is the loudest.)

Level 0 Level 1 Level 2 Level 3 Level 4

Press switch 2 for 1 time to activate “VOLUME
ADJUSTMENT MODE” for zone 1-3 or hold switch 2 for 5
seconds for zone 4. (Power indicator goes OFF and zone
indicators display the current setting).

8 TERMINAL OUTPUT DURATION ADJUSTMENT

2 modes can be set according to the application.

Zone 1 Chime tone 1

Chime tone 2

Zone 2

Chime tone 3

Zone 3

Continuous tone and terminal output

Zone 4

(Latches until switch 2 is presses to inactivate.)

Note: Time of the chime will not change according to terminal output
duration adjustment.

Press switch 1 twice within 2 seconds to activate
“TERMINAL OUTPUT DURATION MODE” (zone
indicators display the current setting).

9 TROUBLESHOOTING

1. The system is not

operating

Terminal output
(Time duration according to setting)

RC-20U will automatically return to normal operation status after 5 seconds without
any operation. (Zone indicators will go OFF and power indicator will remain lit.)

Press switch 2 to change duration time and setting.

NO OUTPUT 1 SEC. 5 SEC. 30 SEC. 60 SEC.

Utility Output modeRegular mode

Note: Time of the chime will not change according to terminal output
duration adjustment.

Check the transmitter.

Does the status indicator light up when
you trigger the transmitter?

Is the status indicator of the transmitter flashing?

Check to see whether the battery is inserted correctly.
If the battery is old, replace it with a new one.

The battery is old. Replace the battery.

Check the receiver.

Is the power indicator of the RC-20U lit?

Have all the transmitter codes have been
taught correctly?

Is the volume setting correct? Is the volume set to “0”? If so, readjust the volume.
Are there other high power appliances using the

same electrical power outlet?
The zone indicator of the RC-20U is on, but
nothing happens.

Is there anything blocking the

Are the zone indicators flashing slowly?

transmission?

Is the receiver on? Check the wiring

Teach the transmitter codes correctly. The system will
not operate without this process.

Please connect the RC-20U to a different electrical
outlet.
Check to see whether the terminal is properly

connected to other devices.

Relocate the receiver and/or the RC-20U. Metal
objects can shorten the effective transmission

Follow directions in 10 LOW BATTERY INDICATION.

and connection.

range.

2. The system is not operating correctly.

The RC-20U does not learn the transmitter
codes.

The RC-20U gets reception in the wrong zone.

The RC-20U does not respond to some of
the transmitters.

A certain zone seem to malfunction.

Before contacting the supplier!

• If the above solutions do not work, please contact your supplier for services.

13 COMPLIANCE

FCC ID : DC9RC-20U

The changes or modifications not expressly approved by the OPTEX could void the user’s authority to operate the equipment. To
comply with the FCC RF exposure compliance requirements, this device and its antenna must not be co-located or operating to
conjunction with any other antenna or transmitter.Note: This equipment has been tested and found to comply with the limits for a Class
B Digital Device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction, may cause harmful interference to radio communication. However, there is no grantee that
interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures.(1)Reorient or relocate the receiving antenna. (2)Increase the separation between the equipment and
receiver.(3)Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.(4)Consult the dealer
or an experienced radio/TV technician for help.

IC : 4012A-000000TD20U

Operation is subject to the following two conditions.(1)this device may not cause interference, and (2) this device must accept any
interference, including interference that may cause undesired operation of the device.
To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically
radiated power (e.i.r.p.) is not more than that permitted for successful communication.

Check whether the transmitter codes have already
been learned in a different zone. If so, erase the
memory and teach again.

Erase memory in the zone in which the RC-20U responds
and teach using the correct zone.

You may have taught multiple transmitter codes in
the same zone. Teach the transmitter codes for which
no response is received using an empty zone.

This is probably the transmitter’s problem. Check the transmitter
that corresponds to that zone.

Go through the setups again after turning on the
power while holding down switch 1.

Normal

Operation Status

Louder

Zone 1 Chime tone 1

Chime tone 2

Zone 2

No chime

Zone 3

Continuous tone and terminal output

Zone 4

(Latches until switch 2 is presses to inactivate.)

No terminal output

Terminal output for only 5 sec.

UTILITY

OUTPUT MODE

10 LOW BATTERY INDICATION

Zone indicator start slow flashing and sound a chime
followed by 2 beeps whenever the corresponding
transmitters have low battery. Any operation cannot be
done until one of operations below are conducted.

1) Replace transmitter’s batteries.

2) Press switch 2.
RC-20U will not need to relearn transmitter after replacing
the batteries.
Note: Check low battery status at the corresponding
transmitter in case several units are learned in 1 channel.

11 SPECIFICATION 12 DIMENSIONS

Model

Description
Power Source
Power Consumption

Chime Tone

Volume
Relay output

Output Timer
Status Indicator

Frequency
Operating
Temperature
Installation Location
Weight
Accessories

Specifications may change without notice

Chime Box w/Relay Receiver
9VDC (Exclusive AC Adaptor)
8W Max. (Including AC Adaptor 120V,

60Hz)
3 Tone & Continue Zone (Selectable)

Adjustable: 0~80dB/ 5 levels

Form “C” MAX 1A/50VAC 24VDC
Selectable: Off/1/5/30/60sec/ Utility output mode
Power Indicator: Green

Zone Indicator: Red x 3

418MHz

15° F ~ 105°F (-10°C ~ +40°C)

Indoor

6.0 oz (170g)

Mounting Screw × 1. AC Adaptor

RC-20U

Unit: inches (mm)

3.5 (88)

14 WARRANTY

1. This product is warranted under normal use for 2 years from the date of purchase. If the
product proves to be defective, return it with a copy of your dated sales receipt for repairs or
replacement without charge.

2. The warranty is not applicable when below circumstances will be found:

• Mechanical or electrical modification(s) are made to the product or it is otherwise altered

manually.

• The product is already been serviced at place(s) other than the manufacturer.

• It is determined that the product malfunction has resulted from improper use or from an

accident.

• No copy of the dated sales receipt has been submitted together with the product to be

serviced.

Normal

Operation

Status

5.3 (134)

1.1
(28)

5916470

7.4 (188)