Unit: inches (mm)
1. The system is not operating
Check the transmitter.
Does the status indicator light up when
you trigger the transmitter?
Check to see whether the battery is inserted correctly.
If the battery is old, replace it with a new one.
Is the status indicator
of the transmitter flashing?
The battery is old. Replace the battery.
Check the receiver.
Is the power indicator of the RC-20U lit?
Is the receiver on? Check the wiring and connection.
Have all the transmitter codes have been
taught correctly?
Teach the transmitter codes correctly. The system will
not operate without this process.
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?
Please connect the RC-20U to a different electrical
outlet.
The zone indicator of the RC-20U is on, but
nothing happens.
Check to see whether the terminal is properly
connected to other devices.
Are the zone indicators flashing slowly?
Follow directions in 10 LOW BATTERY INDICATION.
Is there anything blocking the transmission?
Relocate the receiver and/or the RC-20U. Metal
objects can shorten the effective transmission 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.
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.
The RC-20U does not respond to some of
the transmitters.
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.
A certain zone seem to malfunction.
This is probably the transmitter’s problem. Check the transmitter
that corresponds to that zone.
Before contacting the supplier!
Go through the setups again after turning on the
power while holding down switch 1.
•
If the above solutions do not work, please contact your supplier for services.
Model
Description
Power Source
Chime Tone
Volume
Relay output
Output Timer
Frequency
Operating
Temperature
Installation Location
RC-20U
Chime Box w/Relay Receiver
3 Tone & Continue Zone (Selectable)
9VDC (Exclusive AC Adaptor)
Power Consumption 8W Max. (Including AC Adaptor 120V,
60Hz)
Adjustable: 0~80dB/ 5 levels
Selectable: Off/1/5/30/60sec/ Utility output mode
Status Indicator
Power Indicator: Green
Zone Indicator: Red x 3
Form “C” MAX 1A/50VAC 24VDC
418MHz
15° F ~ 105° F (-10°C ~ +40°C)
Indoor
Accessories
Mounting Screw × 1. AC Adaptor
Weight
6.0 oz (170g)
Specifications may change without notice
7 VOLUME ADJUSTMENT
8 TERMINAL OUTPUT DURATION ADJUSTMENT
9
TROUBLESHOOTING
10
LOW BATTERY INDICATION
11
SPECIFICATION
12
DIMENSIONS
14
WARRANTY
13
COMPLIANCE
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.
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.
3.5 (88)
1.1
(28)
7.4 (188)
5.3 (134)
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.)
2 modes can be set according to the application.
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).
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.)
Louder
Press switch 2 to change volume level (Level 4 is the loudest.)
Level 0
Level 1
Level 2
Level 3
Level 4
Normal
Operation Status
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 MODE
Normal
Operation
Status
Utility Output mode
Regular mode
Zone 1 Chime tone 1
Terminal output
(Time duration according to setting)
Continuous tone and terminal output
(Latches until switch 2 is presses to inactivate.)
Note: Time of the chime will not change according to terminal output
duration adjustment.
Chime tone 2
Chime tone 3
Zone 2
Zone 3
Zone 4
Zone 1 Chime tone 1
No terminal output
Terminal output for only 5 sec.
Continuous tone and terminal output
(Latches until switch 2 is presses to inactivate.)
Note: Time of the chime will not change according to terminal output
duration adjustment.
Chime tone 2
No chime
Zone 2
Zone 3
Zone 4
Press switch 1 twice within 2 seconds to activate
“TERMINAL OUTPUT DURATION MODE” (zone
indicators display the current setting).
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.
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