Masterclock CLDTCD12 User Manual

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Thank you for your purchase of a
CLDTCD12 digital clock from
MASTERCLOCK. Here you’ll find

instructions for unpacking and
installing your clock(s), including
suggestions for proper care and
configuration.

We are here to help.

You can reach us using various
contact methods (phone, email, etc.)
found at our website:

www.masterclock.com

Before calling, please attempt to find
the answer to your situation here.

You’ll find this user manual will

handle virtually all of your questions.

Disclaimer - The material in this
document is for information only and
subject to change without notice.
While reasonable efforts have been
made in the preparation of this
document to assure its accuracy,
MASTERCLOCK assumes no liability
resulting from errors or omissions in
this document, or from the use of
the information contained herein.
MASTERCLOCK reserves the right to
make changes or revisions in the
product design or the product
manual without reservation and
without obligation to notify any
person of such revisions and changes

The CLDTCD12 digital clocks contains
microprocessor control electronics designed to

operate indoors between 32˚ to 140°F (0˚ to
60˚C) with 0-90% relative humidity, non-

condensing.

The CLDTCD12 digital clocks are not water- or
moisture-proof. Treat it as you would any
other delicate electronic device and do not
expose it to water, excessive heat or physical
abuse

Table of Contents

Introduction ......................................................................... 3

Supplied (Ship Kit) Checklist ................................................ 5

Connections ......................................................................... 6

USB Device Driver ................................................................ 7

WinDiscovery - Installation and Configuration .................. 8

Addressing Modes ............................................................. 13

Settings ............................................................................... 16

Operating Environment ..................................................... 18

Trouble Shooting ............................................................... 23

Care and Cleaning .............................................................. 25

Limited Warranty .............................................................. 27

Health and Safety ............................................................... 28

Compliance ........................................................................ 39

Service/Contact Information ............................................. 30

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Caution: This icon signifies a potential hazard, and gives tips on how to avoid them.

Important Information: This icon indicates to an important step that must be followed.

Technical Note: This icon describes technical terms and actions.

Helpful Hint: This icon suggests the general setup and practice.

Introduction

Icons Used In This Manual

CLDTCD12

The CLDTCD12 is a precision, multi-featured time code driven digital time display. The CLDTCD12
decodes VITC, IRIG-B and SMPTE linear/longitudinal time code formats to function as a clock.

VITC

Vertical Interval Time Code (VITC) is a form of SMPTE time code embedded as a pair of black-and-

white bars in a video signal. These lines are typically inserted into the vertical blanking interval of
the video signal. There can be more than one VITC pair in a single frame of video: this can be used
to encode extra data that will not fit in a standard time code frame.

VITC contains the same payload as SMPTE linear time code frame embedded in a new frame
structure with extra synchronization bits and an error-detection checksum. The VITC code is
always repeated on two adjacent video lines, one in each field. This internal redundancy is
exploited by VITC readers, in addition to the standard time code "flywheel" algorithm.

A video frame may contain more than one VITC code if necessary, recorded on different line-pairs.
This is often used in production, where different entities may want to encode different sets of
time-code metadata on the same tape.

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The CLDTCD12 does not support decoding of SMPTE drop-frame, reverse running, NTSC,
color frame, blackburst or other video time code formats and synchronization options.

Please refer to the “Specifications” section of this document for additional details.
For available options, visit Masterclock’s website: www.masterclock.com

IRIG-B

Defined by the Range Commanders Council, U.S. Army White Sands Missile Range. The format
is used by military, government, power industry and many other commercial and industrial
applications. The CLDTCD12 decodes IRIG-B in both a 1 kHz modulated (IRIG-B1) and un­modulated/pulse width coded/DC level shifted (IRIG-B0) format. All formats of IRIG-B time
code decoded by the CLDTCD12 use the time of year information BCD (Binary Coded
Decimal). All formats of IRIG-B time code decoded by the CLDTCD12 also use the extended
year/date and time zone information in the control functions as defined by the IEEE 1344
specification. SBS (Straight Binary Seconds) information is not decoded. Manchester
format/encoding is not supported.

The CLDTCD12 can be configured for world-wide time zone offset and automatic DST (Daylight
Saving Time) adjustment and allows for reliable, accurate and maintenance free operation. Use of
the automatic DST feature requires that the clock be enabled to accept the time code date
encoding, using the USB port and WinDiscovery software application. The time code source must
provide date encoding in the control bits/fields to the Masterclock/Leitch date encoding standard
for SMPTE or the IEEE-1344 year encoding for IRIG-B.

SMPTE

Society of Motion Picture and Television Engineers format is available in frame rates of 24, 25, and
30 frames second. The CLDTCD12 time code clock supports all three formats. All formats of SMPTE
time code decoded by the CLDTCD12 use the full date information in the user bits as defined by
Leitch, Inc.

Features

 Time or Date display
 24 or 12 hour display mode
 AM/PM indicator (12 hour mode)
 +12 to -11 hour time zone offsets
 Programmable time and date when time code not present
 Automatic level adjustment to incoming time code signals
 Automatic detection of time code type and date encoding availability
 Retains time and date during loss of power and/or time code using a battery

backed real-time clock (RTC) and maintenance free rechargeable battery

General Use Precautions

Do not expose this clock to temperatures outside the range of 0° C to 50° C (32° F to 122° F).
Placing your device in an environment that is too cold or humid may damage the unit. Do not
place heavy objects on top of this clock or use excessive force on it. Never use benzene, paint
thinners, detergent or other chemical products to clean the outside of this clock. Such products
will disfigure and discolor the casing.

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Never insert any metallic object into the clocks case, doing so increases the risk of
electrical shock, short circuiting, fire or personal injury.

Never expose your clock to rain or use it near water or in damp or wet conditions. Never
place objects containing liquids on or near this clock, as they may spill into its openings
increasing the risk of electrical shock, short circuiting, fire or personal injury.

Please refer to the “Care and Cleaning” section of this document for details on cleaning
and recommended products.

The CLDTCD12 warranty may be void as a result of the failure to respect the precautions
stated above.

WinDiscovery Configuration Utility

Power cord

Unpacking and Installation

Supplied (Ship Kit)

The list below is for illustration purposes. Refer to your sales order for actual items shipped.

 CLDTCD12 digital-analog clock/date display
 CD-ROM (WinDiscovery Configuration Utility and User Manual)
 Power cord

CLDTCD12

Powder coated steel case

4 Digit LED Display

Only qualified persons are authorized to carry out maintenance on this device. Read this User’s
Manual carefully and follow the correct procedure when setting up the device. Do not open your
Masterclock product or attempt to disassemble or modify it.

Connections

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Un-balanced Signal: Connect the 50 ohm (Ω)
RG59 coaxial cable (not included) to the BNC
connector, located on the back panel.

Balanced Signal: Secure the wires (not included) to
the terminal block, located on the back panel.

USB Port: For configuration.

DC: Insert the DC power cord into the 2.1 mm
connector located on the back panel.

Connections

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Do not route power or signal cables between the case and the wall (along the exterior of the
wall), which may pinch the power or signal cable and create a hazardous condition.

Mounting

Wall Mount Key Hole’s

Wall mounting key holes are position on back case for easy installation.

Mounting

The CLDTCD12 digital time display is designed wall mount. Power and low voltage signal wiring
should be installed according to local electrical codes, so to access the back of the clock.

Wall Mount Bracket

A wall mounting bracket is supplied which has been designed to fit on either a standard 2”x 4” or
4” x 4” conduit box. Mount the bracket on the wall/conduit box, attach the power cord and RG58

coax cable and secure the clock to the bracket using the supplied retaining screws.

Back of Clock

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Wall Mount Dimensions

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CLDTCD12 Dimensions

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USB A cable end

(to computer)

USB B cable end

(to clock)

USB B port

(back of clock)

USB Device Driver

A USB type B port has been included on the rear cover of the clock to provide a means of
configuring the clock via software and to allow for firmware upgrades for either firmware
corrections or future product enhancements.

To utilize the USB port, connect a USB type A to USB type B cable from the computer to the clock.

Installing the Device Driver

First, power-on the CLDTCD12. Next, use a USB cable (not supplied) and connect to the PC.
The Windows Plug and Play manager will detect a new USB device and request device drivers. If
Windows is unable to install the USB device drivers, the system will send an alert.

Open “Device Manager” and locate “CLDTCD12” listed under “Other devices”. Right
click the device and click on “Update Driver Software”. This will need to be

performed for both USB device drivers (i.e. COM and BUS).

There are two locations for the USB Device Driver:

1. C:\ Program Files\Masterclock\WinDiscovery \Drivers\

2. CD labeled, “WinDiscovery” X:\Products\WinDiscovery\Drivers\

Note: “X” is the CD/DVD drive letter of your Windows PC.

WinDiscovery

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The WinDiscovery software application is a clock setup and
configuration program that operates in the Microsoft Windows
operating system and is supplied FREE with your CLDTCD12
device.

INSTALLING WINDISCOVERY

To install the WinDiscovery complete the following steps:

Insert the CD that shipped with your CLDTCD12 device.

1. Run the “WinDiscovery.exe” application from the CD.

2. By default, the setup utility will suggest installing files to

C:\Program Files\MASTERCLOCK\WinDiscovery. Click OKAY.

USING WINDISCOVERY

It is highly recommended that only one user opens
WinDiscovery at a time. Other methods should not be used to
manage the network devices while using this software
application.

Open WinDiscovery from the “Start Menu” or by double-clicking
the shortcut icon on the desktop.

Once you click [Discover], all devices accessible on the network
will announce their presence and the status bar will display the
count of devices found. When complete, a list of device families
and groups will be displayed in the left pane of the
WinDiscovery window.

Each device is configured with a device name from the factory.
This name includes the model name and a MAC address
extension. You should change the device name to one that can
identify the location of the device.

Click on the plus [+] sign to the left of any family or group to
open and view device types that were found.

Click on the minus [-] sign to collapse these files.

Click on any device group and it will list the devices in the right

pane with all devices of that type found. To configure another
device group, click on the device name in the left window and
the device names will then appear in the right window, ready to
be managed.

To configure and manage a device, right click the device name
in the left panel and a drop-down menu appears. The top item is
a [Properties] button.

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To open the “Device Settings” window, double click the

CLDTCD12 clock name. The top left item is labeled

“Configurable Options.”

WITHIN THE DROP-DOWN WINDOW:

Click on a menu choice to open the window for that function.

[PROPERTIES] BUTTON

The “Properties” window lists the name, model, firmware and

network configuration of your CLDTCD12 clock. These
configurations may be changed in other windows, but not in this
one. Click [OK] to exit.

[NETWORK CONFIGURATION] BUTTON

The “Network Configuration” window (lower left) lists the

device name and offers a checkbox to “Automatically obtain
network configuration from DHCP/BOOTP” or not. If not, you

may manually fill in the IP address, Netmask, Gateway and DNS.

DEVICE SETTINGS BUTTON

The “Device Settings” window is the same one that appears with
a left double-click of the device on the “Network Discovery”
window (left above, grayed out) and is detailed on page 17.

SET PASSWORD BUTTON

The “Set Password” window permits the user to enter a unique

password for every device to change the factory default
password, “public”.

A password is one to eleven characters and is case-sensitive. For
added password strength, you should use a combination of
alphanumeric and special ASCII characters.

Fill in the old password, “public” then enter the new password
twice. Click [Change Password] to save.

When a password is set for a device, each time you click [OK],
[Apply] or [Apply and Close] for that device you will be asked for
the password. You can select the “Remember this password for
the session” box and you will not be prompted for the
password, until you restart WinDiscovery. Or you can use the

Global Password feature, (page x).

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If you enter the wrong password and selected the [Remember
this password for the session] checkbox, you will receive an

error upon clicking [Save] or [Save and Close] to any
configuration changes. You can close the WinDiscovery session
to forget the wrong password(s), however this will require
entering the passwords again for each device.

Alternately, you can remove the incorrect password entry during
a WinDiscovery session by going to the drop-down menu for the
device and selecting the [Forget memorized password] button.

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[SET TIME/DATE] BUTTON

Here you may break the link to UTC time to create a custom
time. Click this button to reveal a preliminary warning. Read the
warning and continue if you wish to create a custom time for
your CLDTCD12 clock by unclicking the [UTC] button. By clicking
the [UTC] button you will return to UTC time.

[STATUS] BUTTON

The “Status” window includes a “Display snapshot” of the
clock’s face. On the right are constantly updated listings of the

UTC Time, Local Time, Current Reference, Reference Status, Last
Time Lock Lost (UTC) and Last Time Lock Restored (UTC). Below
is a Time Code Reader tab. The first lists the name and model
number of the unit followed by the network configuration

numbers. These would echo the “Network Configuration”

window figures (page 15). The tab lists whether or not the server
and/or client is enabled and various stats about each.

[RESET DEVICE] BUTTON

This button brings up the “Are you sure?” window. Press the

[Yes] button and you will “soft reset” your clock to allow the
device to clear its current communications buffer and re­initialize its processing, which includes re-requesting of a DHCP
address. This feature is intended to allow the user to remotely
reset the unit and does not restore the factory default state.

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The Global Password being used must
match the password on all the devices
being administered. On any new system
being installed, the factory default

password on all devices is “public”.

GLOBAL PASSWORD

The Global Password feature allows the user to enter a single
password for all devices using the same password. During this
session and subsequent sessions of WinDiscovery, you will not
have to enter the password.

1. Check [Enable Global Password].

2. Type your password.

3. Click [OK]

To disable the Global Password, de-select the [Enable Global

Password] checkbox and click [OK].

[DEVICE SETTINGS] BUTTON

The “Device Settings” window includes three
sections. In “Configurable options” the [Input

Control] button takes you to a [Time Code Reader
button]. Clicking it permits the user to enable or

disable the Time Code client. If enabled, you can
choose SMPTE and IRIG Code Settings or VITC
Encoding.

The [Time Code Reader] button and window are
detailed on page 13.

The [Display Properties] button and window (at
left) permits the user to change the brightness of
the LEDs, to change the Time/Date presentation
order, to choose 12 or 24-hour time formats with
leading zeroes on or off and to choose UTC or local
time (once local time offsets have been input).

The “Local Time Settings” section includes two

buttons for [Daylight Savings Time] and [Time
Zone/Time Offset] to offset your displayed time

from UTC to Local time.

The [Save] and [Save and Close] buttons must be
clicked before hitting the [Exit] button. Otherwise
any entered changes will not take effect.

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ADMINISTRATIVE FUNCTIONS

From the “Device Settings” window, click [Administrative
Functions].

SET TIME AND DATE

This feature may be most useful for demonstration, in lab
situations, environments where an external reference time
signal is not available, when the built-in Time Code client is
disabled or when a network connection to an Time Code server
is not available.

SET PASSWORD

See page 9.

INSTALL NEW OPTION

Paste the Option Key you receive here.

LEAP SECOND DATE

Manually enter the date of the next leap second. The leap
second insertion/deletion always occurs at 11:59:59 p.m. UTC
time on the date selected.

RESET DEVICE

See page 9 under Properties Button.

SET TO DEFAULT CONFIGURATION

Click this button to set your clock back to the factory defaults.
The password will revert to “public”.

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Setting up to receive SMPTE Time
Code, IRIG Time Code or VITC
Encoding is relatively easy to do

once you known what you want.

LTC/VITC Switch
(set in up position)

Time Code Reader - SMPTE

SMPTE TIME CODE

The CLDTCD12 supports SMPTE
Time Code by using the switch
located on back of the clock. Make
sure the LTC/VITC switch is in up
position and LTC is selected. By
switching to LTC from VITC, the clock
will display time from a SMPTE Time
Code source once you have
configured input. From the “Input

Control”, select “Time Code Reader”
and select from the “SMPTE Time

Code Setting”. Options include:
Ignore date on incoming time code,
date using Leitch encoding format or
SMPTE 309M encoding.

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LTC/VITC Switch
(set in up position)

Time Code Reader - IRIG

IRIG

The CLDTCD12 supports IRIG-A, B
or E time code by using the switch
located on back of the clock. By
switching to LTC from VITC, the clock
will display time from an IRIG Time
Code once you have configured IRIG

input. From the “Input Control”,
select “Time Code Reader” and

check box from within the “IRIG
Time Code Settings”. This will set

clock to “Ignore Day of Year and

Year on incoming time code. Time
Code will be either IRIG-A, B or E
with no Day of Year and no IEEE1344
year encoding.

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LTC/VITC Switch
(set in down position)

Time Code Reader – VITC (for units with this option)

VITC ENDCODING

The CLDTCD12 supports VITC by
using the switch located on back of
the clock. By switching to VITC from
LTC, the clock will display time from
a video source once you have
configured VITC input. From the

“Input Control”, select “Time Code
Reader” and select from the “VITC
Encoding” drop down box. The drop

down box lets you choose from lines

6/8 thru 25/27. Selecting “AUTO”

will scan all lines automatically.

Time Zone Offset

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US/Canada Standard, Post 2006

European Union Standard

Time Zone/DST

Modify the time zone by clicking the [Time Zone] button. This opens a new window that gives
you a list of time zones, including descriptions to help with the selection. Select the desired
time zone and click [OK] to close the window. Changes are applied when you click [OK].

Daylight Saving Time

Configure and/or enable the daylight saving function by clicking the [Daylight Saving Time]
button. North American and European Union DST settings are quickly entered by clicking the
appropriate button; [US Standard] or [EU Standard].

Daylight saving time configurations will be applied when you click [OK].

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Practical use of this feature requires the clock to be removed from the time code
source.

When the clock has access to a valid time code source, information obtained via time
code will immediately overwrite any manually established time/date.

Time Code Settings

To use the automatic DST adjustments requires that date/year encoding is enabled.

This product contains an automatic detection and gain control circuit for the incoming SMPTE
30/25/24 fps longitudinal/linear time code or for IRIG-B(0) pulse width modulated or IRIG-B(1)
amplitude modulated time code.

To support common SMPTE/IRIG-B standard time codes without date/year encoding to the
aforementioned standards, an option of ignoring the date information encoded in the time code is
provided.

Display Properties

The settings on this window control how the clock displays time, date and level of brightness.

Display Properties configurations will be applied after you click [OK] and then click
[Apply] from the main window.

Set Date Time

The [Set Date Time] feature lets you manually set the time and date for the clock. This may be
most useful for lab situations as the clock keeps time via its internal precision oscillator and
real-time clock when time code is not present. The time can either be set to the time of the
Windows PC or a manual time and date can be entered.

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The CLDTCD12 is not water or moisture proof. Treat it as you would any other delicate
electronic device and do not expose it to water, excessive heat or physical abuse.

The time code input circuit of the CLDTCD12 can automatically detect and
synchronize to either a single-ended unbalanced or a differential balanced time
code signal.

When time and/or date information is available from the time code source it will
always override any operator-programmed information.

Operating Environment

The CLDTCD12 contains microprocessor control electronics designed to operate indoors
between 32˚ to 140°F (0˚ to 60˚C) with 0-90% relative humidity, non-condensing.

Operation

After applying power, the clock will go through an internal check. Time from the RTC backup will
be applied until a Time Code reference is acquired.

Connect a valid time code signal to the unbalanced BNC connector located on the back of the
clock.

Once a source of VITC, IRIG-B or SMPTE time code is “Locked”, the time should appear on the
display. If the time code signal is lost or disconnected, the CLDTCD12 will continue to display time
based on its internal reference until the time code signal is returned.

The colons of the clock display will flash when the time displayed is not locked to time code.
When time code is present and decoding properly the colons will remain steady-on.

If the CLDTCD12 is configured for a 12-hour time display mode an AM/PM indicator will appear in
the bottom right corner of the display during the PM hours.

To change the display to/from local time, the user must select the time zone offset for the region
of interest and if desired, the optional DST feature which automatically adjusts according to the
currently entered DST rules.

In the event that a time code source is not present, the unit is designed to operate as a standard
(stand-alone) clock using the built in RTC (Real Time Clock). The RTC is battery backed with a
maintenance free rechargeable battery. When operating in time/date display mode the operator
may program time and date information into the clock.

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SETTING

CONFIGURATION SELECTION

Disabled

Time Zone Offset

Disabled

Daylight Savings Time

Enabled

Date information in time code

Enabled

24 Hour format

The CLDTCD12 ships from the factory with “Time Zone / Time Offset” options set to
off in order to display UTC time.

The CLDTCD12 interprets the incoming time code as UTC.

Default

Recommendation

(Examples)

SL26-21:4B

Bldg101-Rm121

SL29-45:8A

Conference_Room-342

Default Configuration

The CLDTCD12 digital clock maintains its configuration data in non-volatile flash memory allowing
the unit to retain configuration settings even when power is off. The clock may be configured by
using the WinDiscovery configuration utility and a USB cable.

The CLDTCD12 ships from the factory with the following configuration as defined below.

NAMING

All CLDTCD12 devices can be provided with a verbose
name. The name is arbitrary and may be useful for
organizing and managing devices once installed. By
default, device names are the product name

abbreviation followed by the device’s MAC address.

Customers should designate their own custom names
relating to their own organizational requirements, 32
characters max.

DEFAULT PASSWORD

The factory-default password for the network device
is: public.

Please use lower case.

RESET FACTORY DEFAULT CONFIGURATION

In some situations (such as a lost password) it may be
necessary to return your device to its factory default
configuration. A [RESET] button is located on the
clock’s rear cover.

To reset the configuration to factory default:

Press and hold the reset button for 10 seconds (until

dashes appear on the digits) and then release. The
configuration will now be reset, including the
password. The unit will need to be reconfigured to
your custom settings.

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If the Time Code input is
different from UTC, do not
adjust the Time Zone and/or DST
offset. These will adjust
automatically.

European customers: Please
carefully consult the section
entitled “Device Settings” for
details on setting your

“Summertime Period.”

Daylight Savings Time (DST)
adjustments must be configured

using the daylight time option
and not with the Time Zone
offset option in order to ensure
proper year-around operation.

LED
STATE

STATUS INDICATION

Flashing

No Reference: The
CLDTCD12 is not able
to reference Time
Code

On Solid

Referenced Time: The
CLDTCD12 is receiving
time referenced from
a Time Code

Configuration

STATUS LED (LIGHT EMITTING DIODE)

The LED colons on the display will follow the following protocol
after power is applied:

TIME ZONE OFFSETS

The CLDTCD12 digital time display maintains time as UTC
initially. A Time Zone offset or bias can be provided to adjust the
time for display purposes. A bias can be set as a positive (+) or
negative (-) value. Expect a resolution of one second.

DAYLIGHT SAVING TIME

An automatic Daylight Saving Time (DST) adjustment can be
configured separately and in addition to a Time Zone offset. DST
begins on the second Sunday of March at 2:00 AM (Local Time)
and ends the first Sunday of November at 2:00 AM (Local Time).

EU STANDARD – EUROPEAN UNION

In the European Union, daylight change times are defined
relative to the UTC time of day. Summertime Period begins at
1:00 AM, UTC on the last Sunday of March and ends at 1:00 AM,
UTC on the last Sunday of October.

FREEWHEELING ACCURACY

The CLDTCD12 has built-in provisions to allow it to freewheel
and maintain accuracy for extended periods in the absence of
Time Code. These features also allow the unit to be set manually
and run without Time Code with precision.

TCXO AND RTC CIRCUIT

The CLDTCD12 contains a precision TCXO (Temperature
Compensated Crystal Oscillator) and RTC (Real Time Clock)

circuit allowing the clock to maintain an accuracy of ± 1 minute
per year to the last known Time Code input (±165 mSec per day)
when Time Code is not present or cannot be decoded (i.e.
freewheeling mode)

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MAINTENANCE-FREE RECHARGEABLE BATTERY

The RTC and TCXO are maintained continuously from a
rechargeable battery circuit during periods of power outage.
Minimum holdover period is two weeks with a fully-charged
battery under constant drain.

DEFAULT CONFIGURATION

The factory defaults may be restored by using the WinDiscovery
program or by using the reset button at the rear of each clock.

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There are no user serviceable parts inside the CLDTCD12 digital clock.
Please contact MASTERCLOCK if you require servicing or repair.

Physical Size
Width

Height
Depth

Weight

Material
Case

Lens

4 Digit Display

CLDTCD12

12” (30.48 cm)
12” (30.48)

2.080” (5.28cm)

4.23 lb (1.92 kg)

Powder Coated Steel
Acrylic

3V,17 mAh, coin cell
Rechargeable manganese lithium
Panasonic ML1220/V1A

Power Requirements

DC

DC Input Voltage .....................................12-28 VAC

DC Input Frequency .................................47-63 Hz

DC Input Connector .................................2.1 mm

DC power consumption ...........................15 W

Internal Battery Circuit
Maintenance Free Rechargeable Battery

3V,17 mAh, Coin Cell
Rechargeable Manganese Lithium
Panasonic ML1220/V1A

Rechargeable Manganese Lithium coin cell (Panasonic ML1220) and recharging
circuit requires no maintenance and retains all configuration settings for two weeks (minimum
holdover) without applied external power.

Operating/Storage Temperature and Humidity

Operating Temperature ..............................0 to +50°C

Relative Humidity ........................................Up to 90% (non condensing @ 25°C)

Storage Temperature ..................................-40 to 70°C

............................................................... Size and Weight

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Time Code Formats

DST supported

MASTERCLOCK/Leitc

h

Date Encoding

IEEE - 1344

Year Encoding

I

N

P

U

T
S

SMPTE – 30 fps

√

-

SMPTE – 25 fps (EBU)

√

-

SMPTE – 24 fps (FILM)

√

-

IRIG-B* & IRIG-B(1)

-

√

VITC

-

-

Specifications and Communications I/O

USB……………………........................................B type connect

Format……………………………………………………..v1.1

Type…………………………………… .........................LTC (Longitudinal/Linear Time Code), forward

running,
automatic detection and automatic gain adjustment.

Impedance .....................................................> 50 K

Nominal Level ................................................1.5 Vpp (0dB/600)

Input Level Range ...........................................0.175-12 Vpp (-15dBV to 20dBV)

Auto-Detection/Gain Adjustment Range .......IRIG-B00 un-modulated, 0.5 to 12 Vpp

IRIG-B12, 1KHz AM, 0.5 to 8 Vpp, 3:1 mark to space ratio
SMPTE 24, 25 and 30 fps, NDF, 0.2 to 12 Vpp

Input Signal and Connector . …………………….…BNC-female, Single Ended, Unbalanced:

Center pin: Time Code Signal (+)

Outer Conductor: Time Code Return (Common)

Terminal Block, Differential, Balanced:

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Pin 1: Signal (+)
Pin 2: Return (-)
Pin 3: Shield (optional)

26

There are no user serviceable parts inside the CLDTCD12 digital clock/display.
Please contact MASTERCLOCK if you require servicing or repair.

Troubleshooting

The easiest way to verify that CLDTCD12 is decoding time code is to observe the LED colons on the
front of the clock. The colons will be on continuously when the CLDTCD12 synchronized to a time
source (i.e. decoding time code). If the colons are flashing at a rate of 1 pulse per second or
dashes are displayed, then there is an issue with the input time code signal.

A secondary method is to monitor the time code status while using the WinDiscovery application.

Time code decoding problems can include any of the following:

 No time code present
 Ground loops or other interference such as coupling from nearby AC power lines,

bad/intermittent cables, wiring or connectors incorrect wiring connection for unbalanced
or balanced input signals

 Out of range signal level that is too high or too low
 Fluctuating signal level
 A signal that is distorted
 Excessive loading on the time code line
 A time code type or encoding that the CLDTCD12 option does not support

Clock is displaying dashes (- - - - ) and/or colon’s are flashing (i.e. unable to “lock” to time code)

Possible reasons/solutions:

1. Clock is not currently connected to a time code source.

2. There is a problem with the cabling between the clock and the time code source.

3. There is a ground loop or other interference between the clock and the time code source.

Verify that a common ground exists between the clock and the time code source. If the
cabling distance between the time code source and clock is large you may want to
consider inserting an audio distribution amplifier between the devices.

4. The signal level of the incoming time code is out of the range of the time code circuitry.

5. The signal level of the incoming time code is fluctuating or has changed. The signal level

must be stable for the CLDTCD12 to detect and decode the time code. Cycle power of the
CLDTCD12 device to re-initiate the auto-detection of time code.

6. The time code being fed to the CLDTCD12 is not a recognized format. Verify that your time

code source is providing one of the time code formats that the CLDTCD12 can decode.

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27

Not displaying the correct local time and/or date.

Possible reasons/solutions:

1. The CLDTCD12 has a time zone offset and/or DST offset configured.

2. Your time code source and/or the CLDTCD12 are set with time zone and/or DST offsets.

3. Your time code source is not providing the time and/or date that you expect. Contact the

individual responsible for the time code source for more information.

Clock did not properly negotiate the DST.

Possible reasons/solutions:

1. Your time code source is not providing date information and/or a valid date was not

programmed into the CLDTCD12.

2. Your time code source already provides the DST adjustment.

3. Your time code source or the CLDTCD12 does not have the correct DST rules configured.

UTC time and/or date is incorrect.

There are several potential failure points:

 Invalid, intermittent or missing time code source
 Date/year overwrite function for non-date encoded time code may be configured

improperly

 Battery may need to be replaced
 A local time zone or DST configuration not set correctly

1. Verify that your time code source is generating the UTC referenced time and date that you

expect and that this time code format is at an acceptable signal level and quality that can
be detected at the client side (i.e. CLDTCD12 input).

2. When using SMPTE time code, verify that you are not using drop frame time code. Use

only NDF (non-drop frame) SMPTE time code.

3. If you are using in-house time code, verify that the time code source is locked to the GPS

satellite system for UTC time code. Time code sources such as SMPTE time code that is fed
via a broadcast satellite will have a delay due to the satellite transmission. The CLDTCD12
cannot compensate for satellite transmission delays.

4. If you are using a time code source from another vendor, be certain your time code

contains encoded year/date information to the VITC or SMPTE time code encoding
formats. SMPTE-type time codes must have the date be encoded to the specification in the
user bits.

5. If your time code source is providing DST adjustments and time zone offsets these

functions must be disabled in your CLDTCD12 in order to eliminate double offsets.
If you are using the date/time display such as on a Windows system to validate the time on the
clock, this may provide misleading information as these may be configured to display local time
zone and daylight saving time information and they may not be currently synchronized to UTC
time. This is configured through the Date/Time applet in the Control Panel.

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28

Care and Cleaning

Adherence to regular and proper cleaning procedures is recommended to preserve appearance.
Scratched or otherwise damaged lens caused by misuse, mishandling and improper storage or
improper cleaning is not covered under the limited warranty.

Job Site Precautions

It is recommended the clock be removed from the wall and stored face up in its protective
shipment bag during painting and construction.

New construction and renovations frequently require that the job site be cleaned of any excess
mortar, paint, sealant, primers or other construction compounds. Only recommended cleaners
should be used to clean the polycarbonate lens. Contact with harsh solvents such as methyl ethyl
ketone (MEK) or muriatic acid can result in surface degradation and possible crazing of the
polycarbonate.

When the clock is first installed, glazing compound and masking tape adhesive can be easily
removed from the lens by applying naphtha (VMandP) or kerosene with a soft cloth, followed
immediately with a thorough soap and water cleaning.

Stainless Steel Case

If your clock has a stainless steel case, a cleaner and polish designed for use on stainless steel is
recommended. Use a recommended product to maintain and protect the stainless steel finish
while resisting water spots and fingerprints.

Compatible Cleaners and Polish

The following cleaning and polish agent has been found to be compatible with the
stainless steel case finish. Manufacturer's instructions should be followed.
Magic® Complete™ Stainless Steel Cleaner and Polish Spray (Magic American Products.

Washing to Minimize Scratching

Wash with a mild soap or detergent (such as 409™ (Clorox Co.), cleaner) and lukewarm water,

using a clean sponge or a soft lint free cloth. DO NOT USE PAPER TOWELS OR PAPER PRODUCTS
TO CLEAN OR DRY THE LENS. Rinse well with clean water. Dry thoroughly with a chamois or moist
cellulose sponge to prevent water spots. Do not scrub or use brushes or abrasives on these
products; the UV coating is not mar resistant. Also do not use butyl cellosolve in direct sunlight.

Fresh paint splashes, grease and smeared glazing compounds can be removed easily before drying
by rubbing lightly with a good grade of naphtha or isopropyl alcohol. Follow the alcohol rub with a
mild detergent wash with warm water and end with a thorough rinsing with clean water using a
clean damp lint free cloth.

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29

Minimize Hairline Scratches

Always store the clock face-up in the protective plastic shipping bag until ready for installation and
during transporting to the installation site. Do not place the clock face (lens surface) down on any
surface as this may scratch or mar the lens.

Scratches and minor abrasions can be minimized by using a mild automobile polish. Three such
products that tend to polish and fill scratches are:

1. Johnson Paste Wax (Johnson and Johnson Co.)

2. Novus Plastic Polish #1 and #2 (Novus, Inc.)

3. Mirror Glaze plastic polish (MG M10)

(Mirror Bright Polish Co.)

It is suggested that a test be made on a very small section of the polycarbonate lens with the
polish selected and that the manufacturer's instructions be followed.

"Don't" - Very Important

 Don't store the clock without the protective plastic shipment bag.
 Don't store or place the clock face down on any surface, as this may scratch the lens.
 Don't use abrasive or highly alkaline cleaners.
 Don't use paper towels, paper products, rayon or polyester cloths to clean or dry the lens.
 Don't scrape the lens with squeegees, razor blades or other sharp instruments.
 Don't ever use benzene, gasoline, acetone, methyl ethyl ketone (MEK), muriatic acid or

carbon tetrachloride on the lens.

 Don't clean lenses in hot sun or on very hot days.

Cleaning the Lens

The following cleaning agents have been found to be compatible with the Polycarbonate and
Acrylic lens. Manufacturer's instructions should be followed.

 Formula 409™ (Clorox Co.)
 Top Job™ (Proctor and Gamble)
 VM and P grade Naphtha Joy™ (Proctor and Gamble)
 Windex w/Ammonia D™ (Drackett Products)

 Palmolive Liquid™ (Colgate Palmolive)

Foreign Substance Removal

 Butyl Cellosolve (For removal of paints, marking pens, lipstick, etc.)
 The use of adhesive tape or lint removal tools work well for lifting off old weathered

paints.

 To remove labels, stickers, etc., the use of kerosene, naphtha or petroleum spirits is

generally effective. When the solvent will not penetrate sticker material, apply heat (hair

dryer) to soften the adhesive and promote removal. Gasoline should never be used.

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30

Limited Warranty

This MASTERCLOCK product warranty extends to the original purchaser.

MASTERCLOCK warrants this product against defects in materials and workmanship for a period of
five years from date of sale. If MASTERCLOCK receives notice of such defects during the warranty
period, MASTERCLOCK will, at its option, either repair or replace products that prove to be
defective.

Should MASTERCLOCK be unable to repair or replace the product within a reasonable amount of
time, the customer's alternate remedy shall be a refund of the purchase price upon return of the
product to MASTERCLOCK. This warranty gives the customer specific legal rights. Other rights,
which vary from state to state or province to province, may be available.

Exclusions

The above warranty shall not apply to defects resulting from improper or inadequate installation
or maintenance by the customer, customer-supplied software or interfacing, unauthorized
modification or misuse, operation outside of the environmental specifications for the product or
improper site preparation and maintenance (if applicable).

Limitations

MASTERCLOCK makes no other warranty, either expressed or implied, with respect to this
product. MASTERCLOCK specifically disclaims the implied warranties of merchantability of fitness
for a particular purpose.

In any state or province which does not allow the foregoing disclaimer, any implied warranty of
merchantability or fitness for a particular purpose imposed by law in those states or provinces is
limited to the one-year duration of the written warranty.

Exclusive Remedies

The remedies provided herein are the customer’s sole and exclusive remedies. In no event shall
MASTERCLOCK be liable for any direct, indirect, special, incidental or consequential damages,
whether based on contract, tort or any other legal theory.

In any state or province that does not allow the foregoing exclusion or limitation of incidental or
consequential damages, the customer may have other remedies.

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31

Never insert any metallic object into
the devices case. Doing so increases
the risk of electrical shock, short
circuiting, fire or personal injury.

Never expose this device to rain, or use
it near water or in damp or wet
conditions.

Never place objects containing liquids
on or near this device, as they may spill
into its openings increasing the risk of
electrical shock, short circuiting, fire or
personal injury

Health and Safety

These devices generate, use and can radiate radio frequency energy and, if not installed and used
in accordance with the instructions, may cause harmful interference to radio communications.
There is no guarantee that interference will not occur in a particular installation. If this device
does cause harmful interference to radio or television reception, which can be determined by
removing power from the device, the user is encouraged to try to correct the interference by one
or more of the following measures:

1. Connect the devices AC power cord into an outlet

on a different circuit than other devices.

2. Increase the physical distance between the

CLDTCD12 digital time display and other devices.

3. Contact MASTERCLOCK.

This CLDTCD12 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.

Only qualified persons are authorized to carry out

maintenance on this device. Read this User’s Manual

carefully, and follow the correct procedure when
setting up the device. Do not open your Masterclock
product or attempt to disassemble or modify it.

COPYRIGHT

©All rights reserved. No part of this publication may be reproduced, stored in a retrieval system,
or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or
otherwise, without the prior written consent of Masterclock.

TRADEMARKS

Microsoft is a registered trademark of Microsoft Corporation. Other trademarks mentioned in this
manual are the property of their respective owners.

PRINTING

While optimized for onscreen viewing, the pages of this manual are formatted for printing on 8.5”
x 11” and A4 sized paper, giving you the option to print the entire manual or just a specific page or

section.

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32

Electromagnetic Compatibility 2004/108/EC
Tested and Conforms to EMC standards
Low voltage directive 2006/95/EC
Tested and Conforms to Safety standards

This device complies with Part 15 of the FCC Rules and found to comply with
the limits for a Class B digital device. These limits are designed to provide
reasonable protection against harmful interference in a commercial/residential
installation.

Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation

Waste Electrical and Electronic Equipment Directive (WEEE) 2002/95/EC

The CLDTCD12 is considered WEEE Category 9 (Monitoring and Control
Instruments Equipment) as defined by the WEEE Directive and therefore fall
within the scope of the WEEE Directive.

Compliant

by
Exemption

Restriction of the Use of Certain Hazardous Substances Directive 2002/95/EC

The RoHS directive covers the same scope of electrical and electronic
equipment that are under the WEEE directive, except that Category 8, Medical
Devices, and Category 9, Monitoring and Control Instruments, which are under
WEEE, are excluded from the RoHS directive.

The CLDTCD12 falls under the category of Monitoring and Control Instruments
Equipment (Category 9 as defined in Annex 1A of WEEE 2002/96/EC Directive)
which is excluded from the RoHS directive 2002/95/EC (reference Article 2,
paragraph 1) requirements.

These products are manufactured using lead in the soldering process as
allowed for items excluded from the RoHS directive. These units are RoHS
Compliant only in that they are excluded from the RoHS directive under
Category 9, Monitoring and Control Instruments.

Compliance

FCC Statement

WEEE

RoHS

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33

All content Copyright © MASTERCLOCK
1999-2013. All rights reserved.

USA OFFICE

Masterclock, Inc.,

2484 West Clay Street
Saint Charles, MO 63301

USA and Canada: Tel [phone] | [phone] | Fax [phone]

International: Tel [phone] | Fax [phone]

Email Contacts

General Enquiries:

[e-mail]

Sales Enquiries:

[e-mail]

Technical Support:

[e-mail]

Website: www.masterclock.com

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Service Information

We sincerely hope that you never experience a problem with any Masterclock product. If you do
need service, contact Masterclock. Many problems are easily resolved with a single phone call or
email.

Visit our website for FAQs and contact information.

http://www.MASTERCLOCK.com/faq.php

Please supply us with as many details about the problem as you can. The information you provide
will be supplied to the repair department before your unit arrives. This helps us to provide you
with the best service, in the fastest manner.

We apologize for any inconvenience that the need for repair may cause you. We hope that our
rapid service meets your needs. If you have any suggestions to help us improve our service, please
give us a call. We appreciate your ideas and will respond to them.

Contact Information

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34

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