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CL-A12 / CL-A16 Analog Clocks

1.  Frequently Asked Questions

2.  Troubleshooting

E.  Support

Where is the best location for the Transmitter/Repeater to be mounted?

Usually, the hallway is the best location because it is mostly open space in typical applications.

How far can the Transmitter/Repeater transmit the wireless signal?

The Transceiver can transmit up to 6500 ft in open space.

Can analog wireless clocks be combined with digital wireless clocks?

Absolutely. The analog and digital wireless clocks are designed to work together, whether the clocks are running on battery
(analog wireless clock only), or 24 volts (digital clocks only).

Will the Transmitter/Repeater have interference from cordless or cellular phones?

No, because with Viking’s innovative frequency-hopping technology, interference will not occur. The repeater switches frequencies
automatically when the receiver and transmitter is open, thus interference is avoided.

My power source is 220 volts. Can the Transmitter/Repeater be powered on that voltage?

Yes, the Transmitter/Repeater can work on 110 volts/50-60 Hz or 220 volts/50-60 Hz.

The clocks aren’t receiving the signal. What should I do?

Make sure that the Transmitter/Repeater is in a place where the signal can be transmitted in open space.

What should I do if the Transmitter/Repeater is not powering up?

Measure the voltage between pins L1 & L2. The voltmeter should read 90 - 230 VAC between the hot and the neutral.

CL-A12 Clock Size: 

12.65” (32.13cm) outer diameter, 2.18” (5.54cm) depth

CL-A16 Clock Size:

16.65” (42.29cm) outer diameter, 2.18” (5.54cm) depth

Time Base: 

Quartz automatic calibration

Battery Life: 

5 years (normal mode), 8 years (economy mode) using (2)

Duracell Procell “D” Batteries (not included). 

Note: 

Standard alkaline

batteries can be used but will have a slightly shorter battery life.

Input Sensitivity:

-103 dbm

Transmitter (Repeater) Power Output:

1/4 watt (8 dbm). Transmits up to

500 ft in open space.

Operating Sensitivity:

915-928 MHz frequency hopping technology

Color:

Standard black

Dial: 

Durable polystyrene material

Case: 

Smooth surface ABS case

Crystal: 

Shatterproof, side molded polycarbonate crystal

Movement Dimensions: 

7.32” x 3.46” x 1.81” (18.59cm x 8.79cm x 4.6cm)

Shipping Weight: 

CL-A12: 2.9 lbs (1.32 kg)

CL-A16: 4.5 lbs (2.04 kg)

Mounting Kit Includes:

(2) plastic anchors, (2) 10 x 1.5 sheet metal

screws, (1) 4mm threaded 10mm length screw (attached to bracket), (1)
mounting bracket, (1) knurled nut, (1) battery cover screw

Compliance: 

FCC compliant, part 15, section 15,247 (no license required)

Environmental: 

0° C to 32° C (32° F to 90° F) with 5% to 95% non-

condensing humidity

* Note: 

Each clock has a built-in Repeater (Transceiver) which receives and

retransmits the clock sync signal up to 500 ft in open space. For longer
distances, a 

CL-RFT

can be set up as a repeater for up to 6500 ft in open

space.

CL-A12

(12” Analog

Clock)

CL-A16

(16” Analog

Clock)

Place the main 

CL-RFT

Transmitter in the building with optional repeaters (

CL-RFT

with JP1 and JP2 in “Repeater” position, see

section C above) as needed to cover the entire premise. Repeaters are synchronized wirelessly to the main transmitter.

1.

Place the main transmitter (

CL-RFT

) in a central location (hallway recommended).

2. 

Pick the location of the optional repeaters.

3. 

Place the repeaters in a location where the signal is available from the main transmitter. 

4. 

Repeat the above mentioned steps with the corresponding repeaters. Please note that the corresponding repeaters can receive 
a signal from another repeater, and not only from the main transmitter.

D.  Installation

A.  Specifications

Summary of Contents for CL-A12

Page 1: ...mbers surface or double mount housing not included CL DMA12 16 Double Mount Housing for 12 16 Analog Clocks clocks not included CL SMD2 4 Surface Mount Housing for 2 5 4 Digital Clocks clock not included CL WGA12 16 Wire Guard for 12 16 Analog Clocks CL WGD4 Wire Guard for 2 5 or 4 Digital Clocks CL DMD2 4 Double Mount Housing for 2 5 4 Digital Clocks clocks not included CTG 2A Master Clock Tone G...

Page 2: ...wn not included see DOD 489 Adjust master volume to match paging level from phone system and or 1 8 mono plug and or CL A16 CL A12 CL D2 CL D4 25AE 30AE RS485 Input A B Viking RF Synchronized Clocks with Built In Repeaters Paging Horns and or Ceiling Speakers 13 8V AC Adapter included 120V AC 12V DC Adapter included Yellow Orange Yellow Orange 120V AC Note Clock is not polarity sensitive Note Cloc...

Page 3: ...the repeater will read the data from RS485 ports 9 and 10 It will then transmit time data as both a wireless signal and as a RS485 data through ports 7 and 8 The repeater will ignore incoming wireless time data in this mode JUMPERS IN REPEATER POSITION When the jumpers are on the lower pair of pins the repeater will read time data from wireless signal sent by Viking RF transmitters or wireless Clo...

Page 4: ... 2 Duracell Procell D Batteries not included Note Standard alkaline batteries can be used but will have a slightly shorter battery life Input Sensitivity 103 dbm Transmitter Repeater Power Output 1 4 watt 8 dbm Transmits up to 500 ft in open space Operating Sensitivity 915 928 MHz frequency hopping technology Color Standard black Dial Durable polystyrene material Case Smooth surface ABS case Cryst...

Page 5: ...rm this task for both clocks 5 Plug and secure wiring to clock Loosen and slip excess wiring through provided wire clamp comes attached to each clock adaptor and tighten the clamp After securing excess wiring plug the jack at the end of the wiring into the appropriate jack on the back of the clock 6 Attach and screw clocks to adaptors Find all four 4 tabs located on each adaptor Snap the clock ont...

Page 6: ... and the clock is not moving The clock should move at normal speed upon power up If it does not move at normal speed check the battery and make sure the clock receives power Also be sure to remove the pin prior to starting up the clock What happens if the clock does not receive the signal Take the clock within close proximity to the CL RFT Transmitter and power up the clock If the clock is battery...

Page 7: ...ostic will test the battery level of the clock To enter Diagnostic 4 mode push the Diagnostic Switch four 4 times which is indicated by the LED flashing four times every two seconds The second hand will display the battery level by stopping at one of the numbers on the clock s face For example If the second hand lands on 7 the battery level is 2 7V If the second hand lands on 8 the battery level i...

Page 8: ...CL D2 CL D4 Digital Clocks 1 Mount Housing to Wall and or Gang Box To mount the housing to the wall drive two 2 plastic anchors into the wall not supplied in kit and take two pan head screws also not supplied in kit and drive them into the plastic inserts leaving an 1 8th inch gap between the head of the screw and the wall Mount the housing to the wall by lining up the two holes in the back of the...

Page 9: ...e into the hole in the middle of each clock housing Align each housing one at a time with the four holes on the mounting pole and screw from the inside of the housing into the pole using the four 4 8 32 x 7 16 screws supplied in the assembly kit 4 screws per clock Note End caps from one side of each clock must be removed to mount both clocks to the mounting pole Remove one end cap from each clock ...

Page 10: ...ks work together with CL A12 16 Series analog wireless clocks Yes the CL D2 4 wireless clocks work integrally with Viking s CL A12 16 series wireless analog clocks How many ways can I mount the CL D2 4 Series clock The clock can be mounted in either surface or double mount Please see pages 8 and 9 for more information on mounting instructions Can the CL D2 4 digital clocks be used as an independen...

Page 11: ... use with the Viking CL A12 12 round analog clock Dimensions 18 75 x 16 x 5 47 63cm x 40 64cm x 12 7cm Shipping Weight 3 9 lbs 1 77 kg Wire 3 6 and 9 gauge Finish Zinc plated epoxy lacquered baked clear coat Description Optional wire guard for use with the Viking CL A16 16 round analog clock Dimensions 23 x 19 x 5 58 42cm x 48 26cm x 12 7cm Shipping Weight 5 2 lbs 2 36 kg Wire 3 6 and 9 gauge Fini...

Page 12: ...er normal use and service for a period of two years from the date of purchase from any authorized Viking distributor If at any time during the warranty period the product is deemed defective or malfunctions return the product to Viking Electronics Inc 1531 Industrial Street Hudson WI 54016 Customer must contact Viking s Technical Support Department at 715 386 8666 to obtain a Return Authorization ...

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