Imagine Communicaons considers this document and its contents to be proprietary and condenal. Except for
making a reasonable number of copies for your own internal use, you may not reproduce this publicaon, or any part
thereof, in any form, by any method, for any purpose, or in any language other than English without the wrien consent
of Imagine Communicaons. All others uses are illegal.
This publicaon is designed to assist in the use of the product as it exists on the date of publicaon of this manual, and
may not reect the product at the current me or an unknown me in the future. This publicaon does not in any way
warrant descripon accuracy or guarantee the use for the product to which it refers. Imagine Communicaons reserves
the right, without noce to make such changes in equipment, design, specicaons, components, or documentaon as
progress may warrant to improve the performance of the product.
Trademarks
6800+™, ADC™, CCS Navigator™, Channel ONE™, ChannelView™, ClipSync™, Delay™, D Series™, D Series DSX™, Deliver
the Moment™, Delivering the Moment™, FAME™, Farad™, G8™, G Scribe™, HView™, IconMaster™, IconLogo™, IconSta
PAC®, Imagine ICE®, Inscriber®, Inscriber® Connectus®, Invenio®, NEO®, Nexio®, Nexio AMP®, PersonalizedTV®, RouterWorks®, Videotek®, Videotek® ASI STAR®, Videotek® GEN STAR®, and Videotek® HD STAR® are registered trademarks of
Imagine Communicaons or its subsidiaries.
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manualiii
Contents
ivUDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
Manual Information
Purpose
This manual details the features, installation, operation, maintenance,
and specifications for UDC-5212 and DTD-5225 Digital Time/Date
Display Clocks.
Audience
This manual is written for engineers, technicians, and operators
responsible for installation, setup, maintenance, and/or operation of
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks.
Revision History
Preface
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manualv
Table P-1. Revision History of Manual
EditionDateComments
CDecember 1998 Full release
DAugust 2006Manual reformatted and updated
Preface
Writing Conventions
To enhance your understanding, the authors of this manual have
adhered to the following text conventions:
ItalicsIndicates E-mail addresses, the names of books or
CAPSIndicates a specific key on the keyboard, such as
CodeIndicates variables or command-line entries, such as a
>Indicates the direction of navigation through a hierarchy
hyperlinkIndicates a jump to another location within the
Internet address
Note
Description
check boxes, list boxes, combo boxes, menus,
submenus, windows, lists, and selection names
publications, and the first instances of new terms and
specialized words that need emphasis
ENTER, TAB, CTRL, ALT, or DELETE
DOS entry or something you type into a field
of menus and windows
electronic document or elsewhere
Indicates a jump to a Web site or URL
Indicates important information that helps to avoid and
troubleshoot problems
Obtaining Documents
Product support documents can be viewed or downloaded from our
Web site at www.broadcast.harris.com/leitchDocumentation). Alternatively, contact your customer service
representative to request a document.
viUDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
(go to Support>
Unpacking/Shipping Information
Unpacking a Product
This product was carefully inspected, tested, and calibrated before
shipment to ensure years of stable and trouble-free service.
1.Check equipment for any visible damage that may have occurred
during transit.
2.Confirm that you have received all items listed on the packing list.
3.Contact your dealer if any item on the packing list is missing.
4.Contact the carrier if any item is damaged.
5.Remove all packaging material from the product and its associated
components before you install the unit.
Keep at least one set of original packaging, in the event that you need to
return a product for servicing.
Preface
Product Servicing
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks are not
designed for field servicing. All upgrades, modifications, or repairs
require you to return the product to the Customer Service center.
Returning a Product
In the unlikely event that your product fails to operate properly, please
contact Customer Service to obtain a Return Authorization (RA)
number, then send the unit back for servicing.
Keep at least one set of original packaging in the event that a product
needs to be returned for service. If the original package is not available,
you can supply your own packaging as long as it meets the following
criteria:
•The packaging must be able to withstand the product’s weight.
•The product must be held rigid within the packaging.
•There must be at least 2 in. (5 cm) of space between the product and
•The corners of the product must be protected.
the container.
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manualvii
Ship products back to us for servicing prepaid and, if possible, in the
original packaging material. If the product is still within the warranty
period, we will return the product prepaid after servicing.
Preface
Restriction on Hazardous Substances (RoHS)
Compliance
Directive 2002/95/EC—commonly known as the European Union (EU)
Restriction on Hazardous Substances (RoHS)—sets limits on the use of
certain substances found in electrical and electronic equipment. The
intent of this legislation is to reduce the amount of hazardous chemicals
that may leach out of landfill sites or otherwise contaminate the
environment during end-of-life recycling. The Directive takes effect on
July 1, 2006, and it refers to the following hazardous substances:
•Lead (Pb)
•Mercury (Hg)
•Cadmium (Cd)
•Hexavalent Chromium (Cr-V1)
•Polybrominated Biphenyls (PBB)
•Polybrominated Diphenyl Ethers (PBDE)
According to this EU Directive, all products sold in the European Union
will be fully RoHS-compliant and “lead-free.” (See our Web site,
www.broadcast.harris.com/leitch
deadlines for compliance.) Spare parts supplied for the repair and
upgrade of equipment sold before July 1, 2006 are exempt from the
legislation. Equipment that complies with the EU directive will be
marked with a RoHS-compliant emblem, as shown in Figure P-1.
Figure P-1. RoHS Compliance Emblem
, for more information on dates and
viiiUDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
Waste from Electrical and Electronic
Equipment (WEEE) Compliance
The European Union (EU) Directive 2002/96/EC on Waste from
Electrical and Electronic Equipment (WEEE) deals with the collection,
treatment, recovery, and recycling of electrical and electronic waste
products. The objective of the WEEE Directive is to assign the
responsibility for the disposal of associated hazardous waste to either
the producers or users of these products. Effective August 13, 2005,
producers or users will be required to recycle electrical and electronic
equipment at end of its useful life, and may not dispose of the
equipment in landfills or by using other unapproved methods. (Some
EU member states may have different deadlines.)
In accordance with this EU Directive, companies selling electric or
electronic devices in the EU will affix labels indicating that such
products must be properly recycled. (See our Web site,
www.broadcast.harris.com/leitch
deadlines for compliance.) Contact your local sales representative for
information on returning these products for recycling. Equipment that
complies with the EU directive will be marked with a WEEE-compliant
emblem, as shown in Figure P-2.
, for more information on dates and
Preface
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manualix
Figure P-2. WEEE Compliance Emblem
Preface
Safety
Carefully review all safety precautions to avoid injury and prevent
damage to this product or any products connected to it. If this product is
rack-mountable, it should be mounted in an appropriate rack using the
rack-mounting positions and rear support guides provided. It is
recommended that each frame be connected to a separate electrical
circuit for protection against circuit overloading. If this product relies
on forced air cooling, it is recommended that all obstructions to the air
flow be removed prior to mounting the frame in the rack.
If this product has a provision for external earth grounding, it is
recommended that the frame be grounded to earth via the protective
earth ground on the rear panel.
IMPORTANT! Only qualified personnel should perform service
procedures.
Safety Terms and Symbols in this Manual
WARNING
Statements identifying conditions or
practices that may result in personal injury
or loss of life. High voltage is present.
CAUTION
Statements identifying conditions or
practices that can result in damage to the
equipment or other property.
xUDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
UDC-5212 Universal Digital Clock
Overview
Chapter 1
This chapter provides installation and operation information about the
UDC-52125 Universal Digital Clock. It includes the following topics:
•“Introduction” on page 2
•“Installation” on page 3
•“Control Modes” on page 4
•“Operation” on page 6
•“Clock Setting Controls” on page 10
•“Specifications” on page 12
•“Specifications” on page 12
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual1
Chapter 1: UDC-5212 Universal Digital Clock
Introduction
The UDC-5212 Universal Digital Clock is a silent, digitally controlled,
self-setting clock with an analog-looking face. It may operate either
stand-alone via power line frequency or internal crystal, or with a
SMPTE or EBU serial timecode input as either a clock or a timecode
reader.
When provided with a SMPTE or EBU timecode source, the UDC-5212
is instantly self-setting.
In the event of a power failure, the UDC-5212 maintains the correct
time internally via a battery-backed timekeeping memory. If power
should be restored without timecode, the UDC-5212 will self-set to the
correct time as maintained by the battery backup, and then continue to
operate on internal crystal or power line timebase.
The UDC-5212 clock may operate with either a sweep or single step
second “hand” as simulated by the perimeter LEDs. The UDC will also
automatically decode either SMPTE or EBU timecode inputs.
Additionally, the UDC may function as a timecode generator when
operated from its internal crystal. Either SMPTE or EBU timecode may
be generated and used to drive other clocks.
The UDC-5212 clock is compatible with a user-defined auxiliary offset
and date when driven from a MTG-3901, CSD-3901/3902, or
CSD-5300 Master Clock System Driver. A local offset can also be
programmed for any offset up to 23:59:59. Time display can be in either
12 or 24 hour format and may display hours:minutes:seconds or
minutes:seconds.frames. When available, the date may be displayed as
month:day:year or day:month:year.
In the event of an input timecode failure, the colon LEDs will flash at
the rate of twice per second. The UDC clock will then automatically
switch to the user-selected secondary timebase, either power line
frequency or internal crystal. (The power line frequency is
automatically determined during power-up.)
If timecode operation is not required, the UDC clock may be set to use
the secondary timebase permanently, and the colon LEDs will not flash.
If operated as a timecode reader display, the UDC continually tracks the
input code and stops when the input fails.
The colon LEDs extinguish when timecode is absent in this mode.
2UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
Installation
General
Clock Mounting
Chapter 1: UDC-5212 Universal Digital Clock
This UDC-5212 Universal Digital Clock has been carefully inspected,
tested, calibrated, and aligned before shipment to insure years of
trouble-free operation. Please check the equipment for any visible
damage which may have occurred in shipping.
The UDC-5212 Universal Digital Clock is designed for wall mounting.
Rack mounting kits are optional.
The rear panel of the UDC-5212 is provided with four rubber feet and
four keyholes. These are dimensioned for #8 screws. The rear panel is
recessed for connectors and to allow the clock to be placed close to the
wall.
Rack Mounting
Table 1-1 provides information about the UDC-5212 clock wall
mounting and clearance specifications. The minimum clearances, are
measured in inches from the mounting keyhole centers to the outside
edge of each clock
Table 1-1. Clock Wall Mounting and Clearance Specifications
Overall
Dimensions
14.0×14.0×3.375 in.12.0×10.5 in. (4 keyholes)
Mounting Keyhole
Centers
Clearances
(Inches)
• Top edge 1.125
• Sides 1.0
• Bottom edge 2.375
Note
A convenient template drawing showing the correct mounting centers
is included with the clock.
The UDC-5212 clock can be rack mounted with the optional rack
mounting kit. The kit is installed by removing the back panel side
screws, placing the rack mount in position, and reinstalling the screws.
The rack mount kits are designated as 5212RM.
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual3
Chapter 1: UDC-5212 Universal Digital Clock
Table 1-2 lists the required rack space for each clock.
Table 1-2. Required Space For Rack Mounting UDC-5212
Rack UnitsInches
814.0
Rear Panel
The rear panel is provided with two spring-loaded speaker-type
connectors. Depending on the configuration, these may be used to
accept the serial timecode (SMPTE or EBU) or may be used as the
timecode output terminals. The rear panel also indicates the type of
operation, that is either MASTER or SLAVE. All clocks are shipped
configured for timecode input (slave) operation, unless otherwise
specified when ordering. A standard AC power connector and cord are
also included.
Control Modes
Selection of the clock control modes is achieved with the rear panel DIP
switches. Figure 1-1illustrates the possible two DIP switch states
6
5
4
3
2
1
Switch in right postiition
Switch in left postiition
Figure 1-1. DIP Switch Positions
4UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
Chapter 1: UDC-5212 Universal Digital Clock
Table 1-3 lists the Clock Control mode DIP switch options.
Table 1-3. Clock Control Mode DIP switch options
Switch Postion Options
Dip Switch
Left Right
6
Clock
(See “Clock Mode” on page 6)
Timecode
(See “Timecode Reader
Mode” on page 6)
5SMPTEEBU (Sweep seconds)
4InternalLine
3NormalUse offset (MTG-3901,
CSD-3901/3902, or
CSD-5300 required)
(See “Auxiliary Offset” on
page 7)
2NormalUse secondary reference
(date if code is present)
(See “Secondary Reference
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual5
Chapter 1: UDC-5212 Universal Digital Clock
Operation
Clock Mode
To set the UDC-5212 to operate as a timecode reading clock, DIP
Switch 6 must be in the CLOCK position. No setting of time is required
when input timecode is provided to the UDC-5212 clock. Once valid
timecode is detected, either SMPTE or EBU, the clock will instantly
self-set.
If there is a failure or error with the input timecode, the clock will
switch to the secondary reference as selected by DIP Switch 4 on the
rear panel. Either the clock’s own internal crystal or the power line
frequency may be selected as the secondary reference. Both will
provide the clock with a timebase during the absence of input timecode.
(Note that either a 50 Hz or 60 Hz power line frequency is suitable for
the timebase, since the clock automatically selects the correct frequency
available.)
To signal the failure of the input timecode, the colon LEDs on the clock
face will flash at a rate of twice per second. When correct timecode is
re-established, the clock will again self-set to the new time, and the
colon LEDs will stop flashing.
Similarly, if there is an error in the input timecode, the clock will
automatically switch to the secondary reference, and the colon LEDs
will flash.
When used in Clock mode, the UDC may display time in either 12- or
24-hour format. DIP Switch 1 selects the display format, 12-hour
format uses the AM/PM LEDs, while the 24-hour format does not.
Timecode Reader Mode
To set the UDC-5212 to operate strictly as a timecode display, DIP
Switch 6 must be in the TIME CODE position. In this mode, the
UDC-5212 will operate only as a digital reader.
If there is a failure of input timecode, the colons will extinguish, and the
last valid time will remain displayed. No switching to a secondary
reference occurs.
6UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
When used in timecode mode, the UDC always displays time in
24-hour format, without AM and PM indications. The digits may be
configured for HH:MM:SS display or MM:SS.FF display using DIP
Switch 1.
Secondary Reference Mode
The UDC-5212 will run as standard wall clock when no input timecode
is provided. Rear panel DIP Switch 4 selects the timebase to be used,
either the clock’s internal crystal, or the power line frequency
(50/60Hz). DIP Switch 6 must be in the CLOCK position.
Rear panel DIP Switch 2 should be switched to the RUN ON
SECONDARY position when the clock is used in this mode. When in
this position, the colon LEDs will not flash. Note that the clock will still
function without selecting RUN ON SECONDARY. However, the
colon LEDs will flash at the rate of twice per second to indicate the
absence of input timecode.
Chapter 1: UDC-5212 Universal Digital Clock
Seconds Display
Auxiliary Offset
When operating in this mode, the time must be set manually using the
rear panel set switches, MANUAL SET, CW, and CCW. Once set,
however, the correct time is maintained even in the event of a power
failure. Upon the return of external power, the clock will automatically
self-set to the correct time. The internal battery-backed timekeeping
function will maintain time for up to four years in the absence of
external power.
The perimeter LEDs may display seconds one at a time or in a sweep
fashion—leaving on each successive LED until the top of the minute is
reached. To enable the sweep display, use DIP Switch 5 to select EBU
(SWEEP SECONDS). For single LED per second display, place DIP
Switch 5 in the SMPTE position.
DIP Switch 3 allows access to a user-programmed auxiliary offset from
the input timecode’s user bits. However, the timecode source must have
the ability to generate the correct information in the user bits.
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual7
Chapter 1: UDC-5212 Universal Digital Clock
The MTG-3901, CSD-3901/3902, and CSD-5300 Master Clock System
Drivers are real time timecode source, which can program such an
offset into the timecode’s user bits. The offset is programmed in 30
minute intervals up to 23 hours and 30 minutes, using 6 bits of the
timecode’s user bit space.
The offset is encoded using timecode bits 36, 37, 38, 52, 53, and 54. Bit
36 is the least significant bit (LSB), while bit 54 is the most significant
bit (MSB).
When DIP Switch 3 on the UDC-5212 clock is in the USE AUX
OFFSET position, the auxiliary offset found in the input timecode’s
user bits is added to the input timecode. The clock then displays the
total. If no input timecode is available, DIP Switch 3 has no effect. If
the user bits are incorrectly programmed, the offset is disregarded.
A programmed local offset (See -Clock Setting Controls on page 1 of
this manual) is still in effect while using the auxiliary offset. The local
offset is totally transparent to the input timecode’s user bit offset.
If input timecode is removed while USE AUX OFFSET is selected, the
clock will retain the time with the offset added, not the original time.
Date Display
The UDC may display the date on the central digits when used with a
MTG-3901, CSD-3901/3902, or CSD-5300 Master Clock System
Driver. The perimeter seconds LEDs will continue to follow the time
from the input timecode. DIP Switch 2 must be set to the RUN ON
SECONDARY (DATE IF CODE PRESENT) position to activate the
Date display. DIP Switch 1 is used to select the date display format;
either DD:MM:YY or MM:DD:YY may be displayed.
Timecode Generator Mode
The UDC-5212 clock can also function as real time timecode generator,
essentially operating as a master clock. This timecode output may be
used to drive other clocks or Time-Code-reading devices.
To configure the UDC as a timecode generator, an internal connector
must be transposed so that the rear panel speaker-type connectors
become the timecode output terminals.
8UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
Chapter 1: UDC-5212 Universal Digital Clock
To do this, remove the 10 small screws along the outside edge of the
clock. Carefully lift the rear panel from the chassis, being sure not to
remove the panel as it will remain connected to the display assembly
and face.
Follow the two wires from the speaker-type terminals to their connector
on the PC board attached to the front chassis. The connector must be
removed and reversed. Normally, the wires on the connector are located
near the left side of the 10-pin header, at Pin 1. Reversing this will
relocate the wires on the connector to Pin 10. When completed, return
the rear panel to the chassis and refasten the 10 screws.
After completing this procedure, the rear panel speaker-type terminals
will output real time timecode when DIP Switch 4 is set to the
INTERNAL position. The clock uses the internal crystal for a timebase
when operated in this fashion.
Additionally, DIP Switch 2 must be set to the RUN ON SECONDARY
position. This disables the flashing colons.
DIP Switch 5 is used to select the output timecode format: either
SMPTE (non-Drop Frame) or EBU.
If EBU timecode output format is selected, the seconds LEDs will
switch to sweep display mode. To return to the single step seconds
LEDs, move DIP Switch 3 to the USE AUX OFFSET position.
Brightness Adjustment
The central digit’s brightness is incrementally adjusted by holding the
MANUAL SET and either the CW or CCW buttons simultaneously.
Holding MANUAL SET and CW increases the brightness one level
per second, while holding MANUAL SET and CCW decreases the
brightness. There are 16 levels of brightness.
To adjust the perimeter seconds LEDs, two single-turn variable resistors
are located behind the two small holes on the rear panel. A small
flat-blade screwdriver may be inserted to adjust the brightness of the
outer seconds LEDs and the inner 5th second marker LEDs. Turning the
adjustment clockwise (as viewed from the back) increases brightness.
To illuminate all the LEDs, press and hold both the CW and CCW
buttons for ten seconds. Re-power the UDC to return to normal
operations.
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual9
Chapter 1: UDC-5212 Universal Digital Clock
Clock Setting Controls
The UDC-5212 Clock may be set using the three push button switches
located on the rear panel. The push buttons, labeled MANUAL SET, CW, and CCW, may be used to program a local time zone offset, or to
manually set the time.
Manual Time Setting
To manually set the clock time, follow these steps:
1.Verify that DIP Switch 2 (the second one up from the bottom) is in
the NORMAL position.
2.Enter Manual Set Mode by pressing the MANUAL SET button
until the seconds LEDs become illuminated and the seconds digits
flash.
3.Use the CW and CCW buttons to set the time. The CW button
increments the displayed value by one, while the CCW button
resets the value to zero.
4.Press and release the MANUAL SET button to move to the next
pair of digits from seconds to minutes and minutes to hours.
5.After setting the desired hours value, press and release the
MANUAL SET button to start the new time.
Manually setting the time in this fashion erases any local offset
previously programmed (See “Local Offset Programming”).
Local Offset Programming
A local time offset may be electronically programmed in order to
provide an offset from the input timecode. This is particularly useful for
displaying multiple time zones from the same timecode source.
DIP Switch 3 (the third one up from the bottom) MUST be in the USE
AUX OFFSET position in order to program the local offset. This switch
may be returned to its previous position after programming the offset.
To set a local offset, follow these steps:
1.Enter Manual Set Mode by pressing the MANUAL SET button
until the seconds LEDs turn off and the seconds digits flash.
2.Use the CW and CCW buttons to set the offset time value. The
CW button increments the displayed value by one, while the CCW
button resets the value to zero.
10UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
3.Press and release the MANUAL SET button to move to the next
4.After setting the hours value, press and release the MANUAL SET
The local offset may be used in addition to any AUX. OFFSET as
programmed by a MTG-3901, CSD-3901/3902, or CSD-5300 Master
Clock System Driver. All offsets are additive.
Time Zone Changes
To simplify clock setting for seasonal time zone changes, do one of the
following:
Chapter 1: UDC-5212 Universal Digital Clock
pair of digits, from seconds to minutes and minutes to hours.
button to complete the programming procedure. The offset will
become effective immediately.
Note
The offset value programmed is always ADDED to the current time. To
achieve a -3 hour offset, program an offset value of 21 hours.
•To advance the time by one hour, press and hold the CW button for
10 seconds. The clock will automatically self-set to the new time.
•To set the time back by one hour, press and hold the CCW button
for 10 seconds. The clock will automatically self-set to the new
time.
For information on the module that controls the UDC-5212, please See
-5100DL Drive Logic Module on page 1 of this manual.
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual11
Chapter 1: UDC-5212 Universal Digital Clock
Specifications
Specifications and designs are subject to change without notice.
Electrical
Table 1-4. Electrical
ItemSpecification
Electrical voltage 115/230 VAC ±20%, internally selectable
Frequency 50 or 60 Hz, automatic selection
Inputs and Outputs
Table 1-5. Inputs
ItemSpecification
Time Base
Serial timecodeSMPTE/EBU
ImpedanceHi-Z, balanced
Level 4 Vp-p ±8 dB
Table 1-6. Outputs
ItemSpecification
Serial timecodeSMPTE/EBU (non-drop frame)
ImpedanceLo-Z, balanced
Level +10 dB nominal unloaded -3dB
into 180 Ohms
Table 1-7. Time Base
ItemSpecification
TimecodeSMPTE/EBU, automatic selection
Internal Crystal, ± 4 sec/month, 0°—50°C
Power line50 or 60 Hz, automatic selection
Battery backupCrystal, ± 10 sec/month, 0°—50°C
12UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
Controls
Chapter 1: UDC-5212 Universal Digital Clock
Table 1-8. Controls
ItemSpecification
Output timecode formatSMPTE/EBU
Secondary reference Internal or power line
Second LEDsSingle step or continuous sweep
Aux. offsetRequires one of the following system
clock drivers:
• MTG-3901
• CSD-3901/3902
•CSD-5300
Date displayM/D/Y or D/M/Y
Requires one of the following system
clock drivers:
Mechanical
• MTG-3901
• CSD-3901/3902
•CSD-5300
Local offsetAny amount, user selectable
Display12 or 24 hour format, H:M:S or M:S:F
Table 1-9. Mechanical Specifications
ItemSpecification
StyleWall-mount
Face diameter11.5 in. (292 mm)
Overall dimensions14.0×14.0×3.375 in. (356×356×86 mm)
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual13
Chapter 1: UDC-5212 Universal Digital Clock
14UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
DTD-5225 Series Digital Time/Date
Overview
Chapter 2
Display
This chapter provides installation and operation information about the
DTD-5225 series digital time/date display. It includes the following
topics:
•“Introduction” on page 16
•“Installation” on page 17
•“Table 2-10 lists the Clock Control mode DIP switch options.” on
page 18
•“Clock Setting Controls” on page 23
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual15
•“Specifications” on page 25
•“Specifications” on page 25
Chapter 2: DTD-5225 Series Digital Time/Date Display
Introduction
The DTD-5225 Digital Time/Date Display Clock is a silent, digitally
controlled, self-setting clock. It may operate either stand-alone via
power line frequency or internal crystal or with a SMPTE or EBU serial
timecode input as either a clock or a timecode reader.
When provided with a SMPTE or EBU timecode source, the DTD-5225
is instantly self-setting.
In the event of a power failure, the DTD-5225 maintains the correct
time internally via a battery-backed timekeeping memory. If power
should be restored without timecode, the DTD-5225 will self-set to the
correct time as maintained by the battery backup, and then continue to
operate on internal crystal or power line timebase.
The DTD will automatically decode either SMPTE or EBU timecode
inputs. Additionally, the DTD may function as a timecode generator
when operated from its internal crystal. Either SMPTE or EBU
timecode may be generated and used to drive other clocks.
The DTD-5225 clock is compatible with a user-defined auxiliary time
offset and date when driven a MTG-3901, CSD-3901/3902, or
CSD-5300 Master Clock System Driver. A local offset can also be
programmed for up to 23:59:59. Time display can be in either 12 or 24
hour format and may display hours:minutes:seconds or
minutes:seconds.frames. When available, the date may be displayed as
month:day:year or day:month:year.
In the event of a timecode input failure, the colon LEDs will flash at the
rate of twice per second. The DTD clock will then automatically switch
to the user-selected secondary timebase, either power line frequency or
internal crystal. (The power line frequency is automatically determined
during power-up.)
If timecode operation is not required, the DTD clock may be set to use
the secondary timebase permanently, and the colon LEDs will not flash.
If operated as a timecode reader display, the DTD continually tracks the
input code and stops when the input fails. The colon LEDs extinguish
when timecode is absent in this mode.
16UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
Installation
General
Clock Mounting
Chapter 2: DTD-5225 Series Digital Time/Date Display
Before installing the clock, seethe DTD-5225 Quick Setup Instructions
included with this product.
Your DTD-5225 Digital Time/Date Display Clockhas been carefully
inspected, tested, calibrated, and aligned before shipment to insure
years of trouble-free operation. Please check the equipment for any
visible damage which may have occurred in shipping.
The DTD-5225 Digital Time/Date Display Clock is designed for wall
mounting. Rack mounting kits are optional.
The rear panel of the DTD-5225 is provided with four rubber feet and
two keyholes. These are dimensioned for #8 screws. The rear panel is
recessed for connectors and to allow the clock to be placed close to the
wall. The clocks overall dimensions are listed in the “Specifications” on
page 25.
Rack Mounting
Rear Panel
Note
A convenient template drawing showing the correct mounting centers
is included with the clock.
The DTD-5225 clock can be rack mounted with the optional rack
mounting kit. The kit is installed by removing the back panel side
screws, placing the rack mount in position, and re-installing the screws.
The DTD-5225 requires two rack units of height (2 RU) or 3.5 inches.
The rear panel is provided with two spring-loaded speaker-type
connectors. Depending on the configuration, these may be used to
accept the serial timecode (SMPTE or EBU) or may be used as the
timecode output terminals. A label indicates whether the clock is in
Master or Slave configuration. All clocks are shipped configured for
timecode input (slave) operation, unless otherwise specified when
ordering. A standard AC power connector and cord are also included.
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual17
Chapter 2: DTD-5225 Series Digital Time/Date Display
Control Modes
Selection of the clock control modes is achieved with the rear panel DIP
switches. Figure 2-2illustrates the possible two DIP switch states
6
5
Switch in right postiition
Switch in left postiition
4
3
2
1
Figure 2-2. DIP Switch Positions
Table 2-10 lists the Clock Control mode DIP switch options.
Table 2-10. Clock Control Mode DIP switch options
Switch Postion Options
Dip Switch
Left Right
6
5SMPTEEBU (Sweep seconds)
Clock
(See “Clock Mode” on page 19)
Timecode
(See “Timecode Reader
Mode” on page 19)
4InternalLine
3NormalUse offset (MTG-3901,
2NormalUse secondary reference
1
18UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
Chapter 2: DTD-5225 Series Digital Time/Date Display
To set the DTD-5225 to operate as a timecode reading clock, DIP
switch 6 must be in the CLOCK position. No setting of time is required
when input timecode is provided to the DTD-5225 clock. Once valid
timecode is detected, either SMPTE or EBU, the clock will instantly
self-set.
If there is a failure or error with the input timecode, the clock will
switch to the secondary reference as selected by DIP switch 4 on the
rear panel. Either the clock’s own internal crystal or the power line
frequency may be selected as the secondary reference. Both will
provide the clock with a timebase during the absence of input timecode.
(Note that either a 50 Hz or 60 Hz power line frequency is suitable for
the timebase, since the clock automatically selects the correct frequency
available.)
To signal the failure of the input timecode, the colon LEDs on the clock
face will flash at a rate of twice per second. When correct timecode is
re-established, the clock will again self-set to the new time, and the
colon LEDs will stop flashing.
Similarly, if there is an error in the input timecode, the clock will
automatically switch to the secondary reference, and the colon LEDs
will flash.
When used in Clock mode, the DTD may display time in either 12- or
24-hour format. DIP switch 1 selects the display format; 12-hour format
uses the
AM/PM LEDs, while the 24-hour format does not.
Timecode Reader Mode
To set the DTD-5225 to operate strictly as a timecode display, DIP
switch 6 must be in the TIMECODE position. When input SMPTE or
EBU timecode is present, the DTD will follow it directly, either up,
down, or paused.
If there is a failure of input timecode, the colons will extinguish and the
last valid time will remain displayed. No switching to a secondary reference occurs.
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual19
Chapter 2: DTD-5225 Series Digital Time/Date Display
When used in timecode mode, the DTD always displays time in 24-hour
format without AM and PM indications. The digits may be configured
for HH:MM:SS display or MM:SS.FF display using DIP switch 1.
Secondary Reference Mode
The DTD-5225 will run as standard wall clock when no input timecode
is provided. Rear panel DIP switch 4 selects the timebase to be used,
either the clock’s internal crystal, or the power line frequency
(50/60Hz). DIP switch 6 must be in the CLOCK position.
Rear panel DIP switch 2 should be switched to the RUN ON
SECONDARY position when the clock is used in this mode. When in
this position, the colon LEDs will NOT flash. Note that the clock will
still function without selecting RUN ON SECONDARY. However, the
colon LEDs will flash at the rate of twice per second to indicate the
absence of input timecode.
When operating in this mode, the time must be set manually using the
rear panel set switches, MANUAL SET, CW, and CCW (see the Clock
Setting Controls section). Once set, however, the correct time is
maintained even in the event of a power failure. Upon the return of
external power, the clock will automatically self-set to the correct time.
The internal battery-backed timekeeping function will maintain time for
up to four years in the absence of external power.
Auxiliary Offset
DIP switch 3 allows access to a user-programmed auxiliary offset from
the input timecode’s user bits. The timecode source, however, must
have the ability to generate the correct information in the user bits.
The MYG-3901, CSD-3901/3902, and CSD-5300 Master Clock
System Drivers are real time timecode source which can program such
an offset into the timecode’s user bits. The offset is programmed in 30
minute intervals up to 23 hours and 30 minutes, using 6 bits of the
timecode’s user bit space.
The offset is encoded using timecode bits 36, 37, 38, 52, 53, and 54. Bit
36 is the least significant bit (LSB), while bit 54 is the most significant
bit (MSB).
20UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
Date Display
Chapter 2: DTD-5225 Series Digital Time/Date Display
When DIP switch 3 on the DTD-5225 clock is in the USE AUX
OFFSET position, the auxiliary offset found in the input timecode’s
user bits is added to the input timecode. The clock then displays the
total. If no input timecode is available, DIP switch 3 has no effect. If the
user bits are incorrectly programmed, the offset is disregarded.
A programmed local offset is still in effect while using the auxiliary
offset. The local offset is totally transparent to the input timecode’s user
bit offset.
If input timecode is removed while USE OFFSET is selected, the clock
will retain the time with the offset added, not the original time.
The DTD may display the date when used with a MTG-3901,
CSD-3901/3902, or CSD-5300 Master Clock System Driver. DIP
Switch 1 is used to select the date display format; either YY:MM:DD or
DD:MM:YY may be displayed.
Timecode Generator Mode
The DTD-5225 clock can also function as real time timecode generator,
essentially operating as a master clock. This timecode output may be
used to drive other clocks or timecode reading devices.
To configure the DTD as a timecode generator, an internal connector
must be transposed so that the rear panel speaker-type connectors
become the timecode output terminals.
To do this, remove the 4 small screws along the outside edge of the
clock. Carefully lift the out rear panel from the chassis.
Follow the two wires from the speaker-type terminals to their connector
on the PC board. The connector must be removed and reversed.
Normally, the wires on the connector are located at pin 1. Reversing this
will relocate the wires on the connector to pin 10. When completed,
return the rear panel to the chassis, and re-fasten the 4 screws.
After completing this procedure, the rear panel speaker-type terminals
will output real time timecode when DIP switch 4 is set to the
INTERNAL position. The clock uses the internal crystal for a timebase
when operated in this fashion.
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual21
Additionally, DIP switch 2 must be set to the RUN ON SECONDARY
position. This disables the flashing colons.
Chapter 2: DTD-5225 Series Digital Time/Date Display
DIP switch 5 is used to select the output timecode format: either
SMPTE (non-Drop Frame) or EBU.
Brightness Adjustment
The digit’s brightness is incrementally adjusted by holding the
MANUAL SET and either the CW or CCW buttons simultaneously.
Holding MANUAL SET and CW increases the brightness one level
per second, while holding MANUAL SET and CCW decreases the
brightness. There are 16 levels of brightness.
22UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
Clock Setting Controls
The DTD-5225 Clock may be set using the three push button switches
located on the rear panel. The push buttons, labeled MANUAL SET, CW, and CCW, may be used to program a local time zone offset, or to
manually set the time.
Note
If this operation is attempted while input timecode is available, NO time
change will occur. The clock will automatically reset itself according to
the input timecode.
Manual Time Setting
To manually set the clock time, follow these steps:
1.Verify that DIP Switch 2 (the second one up from the bottom) is in
the NORMAL position.
Chapter 2: DTD-5225 Series Digital Time/Date Display
2.Enter Manual Set Mode by pressing the MANUAL SET button
until the seconds LEDs become illuminated and the seconds digits
flash.
3.Use the CW and CCW buttons to set the time. The CW button
increments the displayed value by one, while the CCW button
resets the value to zero.
4.Press and release the MANUAL SET button to move to the next
pair of digits from seconds to minutes and minutes to hours.
5.After setting the desired hours value, press and release the
MANUAL SET button to start the new time.
Manually setting the time in this fashion erases any local offset
previously programmed (See “Local Offset Programming”).
To simplify clock setting for seasonal time zone changes, follow these
steps to make one hour time changes:
•To advance the time by one hour, press and hold the CW button for
10 seconds. The clock will automatically self-set to the new time.
•To set the time back by one hour, press and hold the CCW button
for 10 seconds. The clock will automatically self-set to the new
time.
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual23
Chapter 2: DTD-5225 Series Digital Time/Date Display
Local Offset Programming
A local time offset may be electronically programmed in order to
provide an offset from the input timecode. This is particularly useful for
displaying multiple time zones from the same timecode source.
DIP Switch 3 (the third one up from the bottom) MUST be in the USE
AUX OFFSET position in order to program the local offset. This switch
may be returned to its previous position after programming the offset.
To set a local offset, follow these steps:
1.Enter Manual Set Mode by pressing the MANUAL SET button
until the seconds digits flash.
2.Use the CW and CCW buttons to set the offset time value. The
CW button increments the displayed value by one, while the CCW
button resets the value to zero.
3.Press and release the MANUAL SET button to move to the next
pair of digits, from seconds to minutes and minutes to hours.
4.After setting the hours value, press and release the MANUAL SET
button to complete the programming procedure. The offset will
become effective immediately.
The local offset may be used in addition to any AUX. OFFSET as
programmed by a MTG-3901, CSD-3901/3902, or CSD-5300 Master
Clock System Driver. All offsets are additive.
Note
The offset value programmed is always ADDED to the current time. To
achieve a -3 hour offset, program an offset value of 21 hours.
24UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
Specifications
Specifications and designs are subject to change without notice.
Electrical
Table 2-11. Electrical
Inputs and Outputs
Chapter 2: DTD-5225 Series Digital Time/Date Display
ItemSpecification
Electrical voltage 115/230 VAC ±20%, internally selectable
Frequency 50 or 60 Hz, automatic selection
Table 2-12. Inputs
ItemSpecification
Time Base
Serial timecodeSMPTE/EBU
ImpedanceHi-Z, balanced
Level 4 Vp-p ±8 dB
Table 2-13. Outputs
ItemSpecification
Serial timecodeSMPTE/EBU (non-drop frame)
ImpedanceLo-Z, balanced
Level +10 dB nominal unloaded -3dB
into 180 Ohms
Table 2-14. Time Base
ItemSpecification
TimecodeSMPTE/EBU, automatic selection
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual25
Internal Crystal, ± 4 sec/month, 0°—50°C
Power line50 or 60 Hz, automatic selection
Battery backupCrystal, ± 10 sec/month, 0°—50°C
Chapter 2: DTD-5225 Series Digital Time/Date Display
Controls
Table 2-15. Controls
ItemSpecification
Output timecode formatSMPTE/EBU
Secondary reference Internal or power line
Second LEDsSingle step or continuous sweep
Aux. offsetRequires one of the following system
Date displayM/D/Y or D/M/Y
clock drivers:
• MTG-3901
• CSD-3901/3902
•CSD-5300
Requires one of the following system
clock drivers:
Mechanical
• MTG-3901
• CSD-3901/3902
•CSD-5300
Local offsetAny amount, user selectable
Display12 or 24 hour format, H:M:S or M:S:F
Table 2-16. Mechanical Specifications
ItemSpecification
StyleWall-mount
Face diameter11.5 in. (292 mm)
Overall dimensions14.0×14.0×3.375 in. (356×356×86 mm)
26UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
Supporting Information
Clock Battery Replacement Procedure
Typically, the battery will last for more than four years of actual use; the
battery is only in use when AC power is removed from the unit. Once
battery failure has occurred, the clock will NOT self-set when AC
power is restored.
The battery is a Duracell CR2032. It should be replaced only with a
battery of the same type and size. Before installation, verify that the
new battery voltage is 3.0 Volts or greater. To replace the battery, follow
these steps:
1.Remove AC power from the clock and remove the back panel.
2.Remove the old battery B1 from its socket, being careful not to
damage other components.
Chapter 3
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual27
3.Carefully short U4 Pin 16 to GROUND.
4.Short U4 Pin 10 to GROUND.
5.Install the new battery (B1) in the holder, noting the proper polarity.
6.Momentarily short U4 Pin 10 to GROUND.
7.Replace the back panel. Do NOT re-install the screws at this time.
8.Re-apply AC power to the clock, and confirm start-up (LED
remains on, hands do NOT move).
9.Remove AC power from the clock, and again remove the back
panel.
Chapter 3: Supporting Information
10. Confirm that U4 Pin 9 is exactly at GROUND. Any voltage greater
than zero is not allowable, even a few tenths of a Volt. If a non-zero
voltage is observed, remove AC power, remove battery B1, and
repeat this procedure from the beginning.
11. Confirm that the voltage of battery B1 is still 3.0 Volts or greater.
12. Re-attach the back panel completely, re-installing all screws.
13. Apply AC power to the clock. The LED will remain ON.
Immediately perform the Local Offset procedure described in
“Clock Setting Controls” for the appropriate model of clock.
28UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
5225DB Display Module
The 5225DB Display module communicates with the microcontroller
on the 5100DL board via a high speed serial bus. The digits data is
transferred from the microcontroller to a MAX7219 8x8 display driver
IC.
This display driver IC generates all the control functions to drive the
multiplexed digit displays. The segment control lines are fed to a pair of
LM339 voltage comparators. These comparators perform a level-shift
of the display driver output voltage (5 V) to a higher voltage (12 V)
required by the LEDs. This higher voltage signal is then used to turn on
the 2N4401 transistors which provide the current to actually drive the
LED segments.
Similarly, the display driver IC directly controls the sink transistors for
each LED digit. These 2N5323 transistors are capable of passing the
large amounts of current supplied to the LEDs.
The voltage regulator provides 12 Volts for half of the digits, while the
regulator on the 5100DL board provides this voltage for the other half
of the digits.
Chapter 3: Supporting Information
UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual29
Chapter 3: Supporting Information
30UDC-5212 and DTD-5225 Digital Time/Date Display Clocks Installation and Operation Manual
Broadcast Communications Division
4393 Digital Way | Mason, OH USA 45040 | Tel: 1 (513) 459 3400