Plura UD Series User manual

Installation and Operating Manual
Version: 4.5
September 25, 2019
UD Series Displays

Installation and Operating Manual UD Series Displays
Page 3
CONTENTS
A1 REVISION HISTORY
A2 COPYRIGHT
A3 WARRANTY
A4 UNPACKING/SHIPPING/REPACKAGING INFORMATION
A5 SAFETY INSTRUCTIONS
A6 CERTIFICATIONS & COMPLIANCES
FUNCTIONAL DESCRIPTION 13
INTRODUCTION 13
MODELS 15
ACCESSORIES AND OPTIONS 17
EPSW: External AC/DC Power Supply 17
UD-AP: Optional AC Power Inlet, attached 17
UD-BP: Optional AC Power Inlet, integrated 17
UD-PoE: Power over Ethernet 17
UD56-W: Wall, Tripod, and Table Mount Kit 17
UD56S, UD56LS and UD56ES: Integrated LED Seconds Ring for UD56 18
UD300D, UD300LD and UD300ED: Appended Display for UD300 18
INTERFACES 19
LTC (MTD) 19
IRIG 19
RS485 (MTD) 19
GPI 20
RS232/RS422 20
Ethernet 21
STATUS AFTER POWER-ON 22
Displays in LTC, IRIG or serial modes 22
Displays in Ethernet mode 23
FIRMWARE UPDATE 24
CONFIGURATION 25
The UD/SC Configuration Program 25
“Profile“ Tab: Store and Load a Complete Set-Up 26
“System“ Tab: View and Change System Parameters 27
“Source” Tab: Select the Signal Source 28
“LTC“ Tab: Set-Up of the LTC Reader 30
“Serial“ Tab: Set-Up of the Serial Interface 31
“Ethernet“ Tab: IP Addresses ... 33
“Real-Time“ Tab: Set the Time Zone Parameters 35
“Display“ Tab: Display Mode, Brightness, ... 37
“GPI“ Tab: Programming GPI as Input or Output 39
SPECIAL FEATURES 43
Colour Changing Modes 43
Switching the Display Mode by a Button 44

Installation and Operating Manual UD Series Displays
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TECHNICAL DATA 45
CONNECTIONS AT THE REAR 45
SPECIFICATIONS 47
AC/DC POWER SUPPLIES 50
EPSW: External Power Adapter 50
UD-AP: Attached AC Power Inlet 51
UD-BP: Integrated AC Power Inlet 52
PI: Ethernet Power Injector for UD-PoE 53
Notes on PoE Operation 55
Safety Precautions 56
APPLICATIONS 57
CONTROLLING MTD STOP TIMERS BY USE OF GPI COMMANDS 57
MTD SLAVE: LOCAL STOP TIMER AND EXTERNAL DISPLAYS 58
REAL-TIME DISPLAY WITH A GPS16/GPS17 REFERENCE 59
REAL-TIME DISPLAY WITH A RUB GPS 10 MHZ REFERENCE 61
INSTALLATION 63
TERMINAL BLOCK CONNECTIONS 63
LTC/MTD LOOP ADAPTER 64
STRAIN RELIEF FOR CONNECTING CABLES: UTILIZING CABLE TIE HOLDERS 65
UD56-W: WALL, TRIPOD, AND TABLE MOUNT KIT 66
UD300: WALL MOUNTING 68
UD126 + UD178: MOUNTING AND TECHNICAL DATA 69
UD25TT: SPACE SAVING HOUSING 70

Installation and Operating Manual UD Series Displays
Page 5
A1 Revision History
No.
Date
Subject
0.x
Preliminary documents, changes without notice.
1.0
August 27, 2008
First released document.
1.1
September 04, 2008
UD56.
1.2
September 15, 2008
UD56E.
Revised.
1.3
October 23, 2008
Operating mode “MTD Slave”.
1.4
October 28, 2008
GPI features.
1.5
November 13, 2008
Operating mode “MTD Slave” extended.
New: Chapter “Special Features –Colour Changing Modes”.
1.6
March 02, 2009
Wall and table mount kit: UD56-W.
UD300.
2.0
March 20, 2009
Completely revised.
2.1
April 29, 2009
Status after power-on and RS232/RS422 revised.
New: Specification of free-run accuracy.
New: Chapter “Real-Time Display with a GPS16/GPS17 Reference”.
New: Chapter “Real-Time Display with a RUB GPS 10 MHz Reference”.
2.2
June 16, 2009
Revised.
New feature “Set Clock” at the “Real-Time” tab.
New feature “Reset+Continue” at the “GPI” tab.
Housing UD25TT.
3.0
March 25, 2010
Revised.
MTDoE and PoE versions.
3.1
April 16, 2010
Revised.
UD-AP: Attached power supply.
New rear with XLR connectors.
3.2
December 02, 2010
UD300LD and UD300ED.
Installation: Cable tie holders.
3.3
December 21, 2010
UD126L (preliminary).
3.4
April 12, 2011
UD126L/UD126E.
UD56 housing: Depth will change from 45 mm to 56 mm.
UD-BP: Integrated power supply.
New GPI functions.
Special features: Switching the display mode by a button.
3.5
May 13, 2011
New GPI features.
3.6
May 30, 2011
Technical data revised.
GPS connection changed regarding PPS input.
3.7
February 10, 2012
Changes at tab “Ethernet”.
New: Store and load “profiles”.
New serial protocols.
New GPI modes.
Description of a “Loop Adapter” for “L” version displays.
3.8
August 10, 2012
Page layout revised.
3.9
August 01, 2013
Tab “Ethernet”: It is possible to enter an IP address of a “Secondary MTD Master”.
UD56-W: Now fitted with tripod screw thread.
3.A
October 23, 2013
UD178L/UD178E.
Table of “Readability/Distance” added to Specifications.
3.B
April 02, 2014
Chapter “System Tab: View and Change System Parameters”: added note if password is lost.
4.0
April 24, 2014
New chapter: “PI: Ethernet Power Injector for Option UD-PoE”.
4.1
May 02, 2014
New chapter: “Notes on PoE Operation”.
Chapter revised: “UD56-W: Wall, Tripod, and Table Mont Kit”.
Chapter revised: “Real-Time Tab: Set the Time Zone Parameters”.
4.2
July 31, 2014
Chapter revised: “Models”.
Chapter revised: “Connections at the Rear”.
Chapter revised: “UD56-W: Wall, Tripod, and Table Mont Kit”.
4.3
May 28, 2015
Added “universal” display versions.
4.4
July 20, 2017
Added DC IN specifications to UD300 / UD300D
4.5
September 25, 2019
Changed address of Plura Europe GmbH.

Installation and Operating Manual UD Series Displays
Page 6
Due to constant product development the features of UD Series Displays are subject to
change. The current functional description always refers to the current firmware and the
current configuration tool. You can download the latest version of the standard firmware from
https://www.plurainc.com
Please be sure to use the latest configuration program after having done an update. You can
download the latest version from the address above.
A2 Copyright
Copyright © Plura Europe GmbH 2008-2019. All rights reserved. No part of this publication
may be reproduced, translated into another language, 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 Plura Europe GmbH.
Printed in Germany.
Technical changes are reserved.
All brand and product names mentioned herein are used for identification purposes only and
are trademarks or registered trademarks of their respective holders.
Information in this publication replaces all previously published information. Plura Europe
GmbH assumes no responsibility for errors or omissions. Neither is any liability assumed for
damages resulting from the use of the information contained herein.
For further information please contact your local dealer or:
Plura Europe GmbH
Binger Weg 12
D- 55437 Ockenheim
Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]
Internet: http://www.plurainc.com

Installation and Operating Manual UD Series Displays
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A3 Warranty
Plura warrants that their products will be free from defects in materials and workmanship for a
period of two years from the date of shipment. If this product proves defective during the
warranty period, Plura, at its option, will repair or replace the defective product without
charge, provided this product is returned to Plura freight prepaid.
In order to obtain service under this warranty, Customer must notify Plura of the defect before
expiration of the warranty period and make suitable arrangements for the performance of
service. Customer shall be responsible for packaging and shipping the defective product to
Plura, please notice the Shipping Information given below.
This warranty shall not apply to any defect, failure or damage caused by abuse, misuse,
improper use, negligence, accident, modification, alteration, or improper or inadequate
maintenance and care.
This warranty is given by Plura with respect to this product in lieu of any other warranties,
express or implied. Plura and its vendors disclaim any implied warranties of merchantability or
fitness for a particular purpose. Plura’s responsibility to repair or replace defective products is
the sole and exclusive remedy provided to the customer for breach of this warranty. Plura and
its vendors will not be liable for any indirect, special, incidental, or consequential damages
irrespective of whether Plura or the vendor has advance notice of the possibility of such
damages.

Installation and Operating Manual UD Series Displays
Page 8
A4 Unpacking/Shipping/Repackaging Information
This product has been carefully inspected, tested and calibrated before shipment to ensure
years of stable and trouble-free service.
The shipping carton and pads provide protection for the product during transit. Retain the
shipping cartons in case subsequent shipment becomes necessary.
Carefully unpack the product from its transit material and carefully check the product for signs
of damage. In the event that the product has been damaged during transit, contact the carrier
and your Plura dealer.
Please confirm that all items listed on the packing list have been received. Check the items
against your original order to ensure that you have received the correct parts. If any item is
missing, please contact your Plura dealer.
Ensure that all packaging material is removed from the product and its associated
components before installing the unit.
Products returned to Plura for servicing or repair should have a tag attached showing:
•Name and complete address of the owner and the name of the person that can be
contacted.
•Unit’s serial number and a description of the service required, or failure detected.
Products returned should be shipped prepaid in the original packaging material if possible. If
the original packaging is not available or is unfit for use, supply an adequate packaging
which should meet the following criteria:
•Packaging must be able to withstand the product weight.
•Product must be held rigid within the packaging.
•Allow at least two inches of space between the product and the container.
•The corners of the product must be protected.
•Seal the carton with shipping tape or an industrial stapler.
If the product is still within the warranty period, the product will be returned by prepaid
shipment after servicing.

Installation and Operating Manual UD Series Displays
Page 9
A5 Safety Instructions
The general safety information in this part is for both operating and service personnel. Plura
products are only to be used as directed. Specific warnings and cautions will be found
throughout the manual where they apply.
Review the following safety instructions to avoid injury and prevent damage to this product or
any products connected to it.
•Read these instructions.
•Keep these instructions.
•Heed all warnings.
•Follow all instructions.
Safety Terms and Symbols
Terms and Symbols in this manual:
WARNING: Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION: Caution statements identify conditions or practices that could result in
damage to this product or other property.
Terms and Symbols which may be found on the product:
ATTENTION: Refer to the manual.
Observe precautions for handling electrostatic-sensitive devices.
Signal Ground.
Product Damage Precautions
PREVENT OVERHEATING
To prevent product overheating, position the unit only where sufficient air
circulation can be maintained. Good air circulation is essential to prevent
internal heat build-up, do not block any ventilation openings. Do not expose the
unit to direct sun light or any other strong lights. Keep the unit away from heat
sources.
PROVIDE PROPER ENVIRONMENT
Dust, humidity, shocks and strong electromagnetic fields must be avoided. Do
not expose this apparatus to dripping or splashing water. Ensure that no objects
filled with liquid are placed on the apparatus.

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OBSERVE EMC REGULATIONS
The EMC regulations are observed only under the following condition: use high
quality shielded cables at data inputs and outputs.
SUSPECTED FAILURES
Whenever it is likely that safe operation is impaired, the apparatus must be made
inoperative and secured against unintended operation. The appropriate service
authority must then be informed. Do not operate with suspected failures.
Servicing is required when the apparatus has been damaged in any way, such as
power-supply is damaged, liquid has been spilled or objects have fallen into the
apparatus, the apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.
PREVENTIVE MAINTENANCE: CLEANING
Qualified Service Personnel Only: The apparatus should be cleaned often
enough to prevent dust or dirt from accumulating. Dust accumulating in the
apparatus acts as an insulating blanket, preventing proper cooling, and possibly
causing overheating and component breakdown. Under high humidity
conditions, accumulated dust can also provide an electrical conduction path.
Remove accumulated dust with a soft cloth or small paint brush. Remove
hardened dirt with a soft cloth, dampened in a mild detergent and water
solution. Do not use polish or abrasive cleaners or any other chemical cleaning
agents.
PREVENTIVE MAINTENANCE: VISUAL INSPECTION
Qualified Service Personnel Only: Visually inspect the apparatus for signs of
damage, scorched components, and loose or disconnected pin connectors. If you
discover heat damaged parts, try to determine the cause of the overheating
before replacing the damaged parts; otherwise, the damage may repeat.
ATTENTION:
Observe precautions for handling electrostatic-sensitive devices. See “Electrostatic
Discharge (ESD) Precautions” below for details.

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Page 11
Electrostatic Discharge (ESD) Precautions
All semiconductor devices are sensitive to ESD. To prevent any damage or
degradation on components of the product caused by ESD, observe these
precautions when directed to do so (installing, removing sensitive components):
1. Use a Ground Strap. Wear a grounded anti-static wrist or heel strap to discharge the
static voltage from your body.
2. Use a Safe Work Area. Avoid handling components in areas that have a floor or work
surface covering capable of generating a static charge. Also, nothing capable of
generating or holding a static charge should be allowed in the work area.
3. Handle ESD sensitive components carefully. Do not slide components over any surface.
Do not touch exposed connector pins. Pick-up components by the body, never by the
leads.
4. Transport and store sensitive components or assemblies in a static-protected bag or
container.

Installation and Operating Manual UD Series Displays
Page 12
A6 Certifications & Compliances
CE-Declaration UD25, UD25L, UD25E, UD25TT, UD25TTL, UD25TTE, UDD25,
UDD25L, UDD25E:
We,
Plura Europe GmbH
Binger Weg 12
D- 55437 Ockenheim
herewith declare under our sole responsibility that the
UD Series Displays UD25, UD25L, UD25E, UD25TT, UD25TTL, UD25TTE, UDD25,
UDD25L, UDD25E
meet the intent of the following directives, standards and specifications:
2004/108/EC EMC Directive
applying the following standards:
EN 55022:2006 Emission
EN 55024:1998 + A1:2001 + A2:2003 Immunity
CE-Declaration UD126, UD126L, UD126E, UD178, UD178L, UD178E, UD56,
UD56L, UD56E, UD56S, UD56LS, UD56ES, UD300, UD300L,
UD300E, UD300D, UD300LD, UD300ED:
We,
Plura Europe GmbH
Binger Weg 12
D- 55437 Ockenheim
herewith declare under our sole responsibility that the
UD Series Displays UD126, UD126L, UD126E, UD178, UD178L, UD178E, UD56,
UD56L, UD56E, UD56S, UD56LS, UD56ES, UD300, UD300L,
UD300E, UD300D, UD300LD, UD300ED
meet the intent of the following directives, standards and specifications:
2006/95/EC Low Voltage Directive
applying the following standard:
EN 60950-1:2006 Electrical and mechanical safety
2004/108/EC EMC Directive
applying the following standards:
EN 55022:2006 Emission
EN 55024:1998 + A1:2001 + A2:2003 Immunity

Installation and Operating Manual UD Series Displays
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Functional Description
Introduction
These are the common features of our UD Series Displays:
•6-digits time and date display.
•Selectable colours for the LEDs: red / green / yellow. Exception: UD126, UD178.
•GPI (General Purpose Interface) inputs or outputs to connect external buttons or to pro-
gram a trigger signal output. Each of the four GPI’s is individually programmable.
•USB interface for setup and firmware flash updates.
Various interfaces are available.
UD displays of “universal” version (not “L”or “E”):
•can be integrated in the MTD system of type LTC(MTD)/RS485(MTD),
•can read LTC and use it as a reference for a real-time operating mode,
•can read IRIG and use it as a reference for a real-time operating mode,
•can receive display data via serial interface,
•can be integrated in the MTD system of type MTDoE,
•can operate as an NTP Client in a real-time operating mode.
UD displays of version “L“:
•can be integrated in the MTD system of type LTC(MTD)/RS485(MTD),
•can read LTC and use this LTC as a reference for a real-time operating mode,
•can receive display data via serial interface.
UD displays of version “E“:
•can be integrated in the MTD system of type MTDoE,
•can operate as an NTP Client in a real-time operating mode.
The MTD system:
Plura has developed a system called the Multiple Time Display (MTD) system. An MTD system
consists of a central generator unit, control units, digital displays and/or studio clocks. The
central MTD generator (RUB GT or RUB GL module) is the time & date reference and manages
stop timers.
The MTD data of the central generator include six independent programmable timers (stop
timers, time zones), real-time, date and status data.
The LTC(MTD)/RS485(MTD) system: The MTD generator outputs a specific LTC format which is
referred to as LTC(MTD) in this document. LTC(MTD) fully complies to the SMPTE 12M
specification for Linear Time Code. The time addresses can be decoded by every time
code reader, only the binary groups (32 user bits) carry multiplexed data which can be
decoded by Plura units only. The LTC(MTD) transfers data to UD displays of “universal”
or “L” versions. Control units communicate with the central generator via an RS485 bus.
This interface is referred to as RS485(MTD) in this document. As many control units as
needed can be connected to the same RS485(MTD) interface. UD displays of
“universal” or “L” versions can operate as a control unit using the GPI inputs.

Installation and Operating Manual UD Series Displays
Page 14
The MTDoE system: This system utilizes the Ethernet to transport the MTD data as well as to
communicate between control units and central generator. The central generator
transmits the MTD data to the RUB IE (with option M) Ethernet module via the internal
TC_link interface of the RUBIDIUM system, the RUB IE module then opens the gates to
the local Ethernet. UD displays of “universal” or “E” versions read these data and
communicate via Ethernet. Plura’s MTDoE devices have the property to perform an auto-
installation within an Ethernet network, i.e. the units find them selves, assign them selves
to a group and can be listed, named and configured centrally.
Please refer to “The MTD System –Installation and Operation Manual” to read about
installation and basic set-up of UD displays in an MTD system.

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Page 15
Models
There are various models differing by their housings, interfaces, digits heights etc.:
Interfaces
Model
Housing
LTC
MTD
Ethernet
MTDoE
IRIG
GPI
Display
digits height
Power
supply
UD25
19”/1 RU
yes
yes
yes
yes
single
25 mm/1.0 in
DC: EPSW
AC: UD-AP
UD25TT
210 mm
1 RU
yes
yes
yes
yes
single
25 mm/1.0 in
DC: EPSW
UDD25
19”/1 RU
yes
yes
yes
yes
double
25 mm/1.0 in
DC: EPSW
AC: UD-AP
UD25L
19”/1 RU
yes
no
no
yes
single
25 mm/1.0 in
DC: EPSW
AC: UD-AP
UD25TTL
210 mm
1 RU
yes
no
no
yes
single
25 mm/1.0 in
DC: EPSW
UDD25L
19”/1 RU
yes
no
no
yes
double
25 mm/1.0 in
DC: EPSW
AC: UD-AP
UD25E
(+ UD-PoE)
19”/1 RU
no
yes
no
yes
single
25 mm/1.0 in
DC: EPSW
(UD-PoE)
AC: UD-AP
UD25TTE
(+ UD-PoE)
210 mm
1 RU
no
yes
no
no
single
25 mm/1.0 in
DC: EPSW
(UD-PoE)
UDD25E
(+ UD-PoE)
19”/1 RU
no
yes
no
yes
double
25 mm/1.0 in
DC: EPSW
(UD-PoE)
AC: UD-AP
UD56
19”/2 RU
yes
yes
yes
yes
single
56 mm/2.2 in
DC: EPSW
AC: UD-BP
UD56S
19”/2 RU
yes
yes
yes
yes
single
56 mm/2.2 in
+ LED ring
DC: EPSW
AC: UD-BP
UD56L
19”/2 RU
yes
no
no
yes
single
56 mm/2.2 in
DC: EPSW
AC: UD-BP
UD56LS
19”/2 RU
yes
no
no
yes
single
56 mm/2.2 in
+ LED ring
DC: EPSW
AC: UD-BP
UD56E
(+ UD-PoE)
19”/2 RU
no
yes
no
yes
single
56 mm/2.2 in
DC: EPSE
(UD-PoE)
AC: UD-BP
UD56ES
(+ UD-PoE)
19”/2 RU
no
yes
no
yes
single
56 mm/2.2 in
+ LED ring
DC: EPSW
(UD-PoE)
AC: UD-BP
UD300
square
324 mm/
12.75 in
yes
yes
yes
yes
single
56 mm/2.2 in
AC
UD300D
324 mm x
382 mm
yes
yes
yes
yes
56 mm/2.2 in
+
25 mm/1.0 in
AC

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Page 16
UD300L
square
324 mm/
12.75 in
yes
no
no
yes
single
56 mm/2.2 in
AC
UD300LD
324 mm x
382 mm
yes
no
no
yes
56 mm/2.2 in
+
25 mm/1.0 in
AC
UD300E
(+ UD-PoE)
square
324 mm/
12.75 in
no
yes
no
no
single
56 mm/2.2 in
AC
(UD-PoE)
UD300ED
(+ UD-PoE)
324 mm x
382 mm
no
yes
no
no
56 mm/2.2 in
+
25 mm/1.0 in
AC
(UD-PoE)
UD126
808 x 237 x
90 mm
yes
yes
yes
yes
one colour (!)
126 mm
AC
UD126L
808 x 237 x
90 mm
yes
no
no
yes
one colour (!)
126 mm
AC
UD126E
808 x 237 x
90 mm
no
yes
no
no
one colour (!)
126 mm
AC
UD178
808 x 237 x
90 mm
yes
yes
yes
yes
one colour (!)
178 mm
AC
UD178L
808 x 237 x
90 mm
yes
no
no
yes
one colour (!)
178 mm
AC
UD178E
808 x 237 x
90 mm
no
yes
no
no
one colour (!)
178 mm
AC

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Page 17
Accessories and Options
EPSW: External AC/DC Power Supply
This is a 24V/20W AC/DC power adapter. This will be the right external AC/DC adapter for
all displays equipped with the 2-pole DC connector.
Details in chapter: Technical Data → AC/DC Power Supplies
→ EPSW: External Power Adapter.
Please also observe: Technical Data → AC/DC Power Supplies → Safety Precautions.
For “universal” or “E” version displays please also observe:
Technical Data → AC/DC Power Supplies → Notes on PoE Operation.
UD-AP: Optional AC Power Inlet, attached
With UD-AP an UD25 device receives an AC/DC adapter attached to the rear. This enables to
directly connect an AC power cord.
Details in chapter: Technical Data → AC/DC Power Supplies
→ UD-AP: Attached AC Power Inlet.
Please also observe: Technical Data → AC/DC Power Supplies → Safety Precautions.
UD-BP: Optional AC Power Inlet, integrated
With UD-BP an UD56 device receives an integrated AC/DC adapter. This enables to directly
connect an AC power cord.
Details in chapter: Technical Data → AC/DC Power Supplies
→ UD-BP: Integrated AC Power Inlet.
Please also observe: Technical Data → AC/DC Power Supplies → Safety Precautions.
UD-PoE: Power over Ethernet
Power over Ethernet or PoE technology describes a system to pass electrical power, along with
data, on Ethernet cabling. This feature is built-in with UD25, UDD25, UD56 and UD56S
displays and available as an option for UD300, UD300D and most “E” version displays. PoE
is not available for the models UD126, UD56E, UD178 and UD178E.
In the case your network devices cannot supply PoE it is possible to use a PoE injector. This
keeps the advantage to have only one cable –carrying data and power - connected to your
UD display.
Detailed description of our recommended power supply in chapter:
Technical Data → AC/DC Power Supplies → PI: Ethernet Power Injector for UD-PoE.
Please also observe: Technical Data → AC/DC Power Supplies → Safety Precautions.
Please also observe: Technical Data → AC/DC Power Supplies → Notes on PoE Operation.
UD56-W: Wall, Tripod, and Table Mount Kit
The UD56-W mount kit is an option for UD56 displays. It serves to mount the display at a
wall, to a tripod, or to a table. See chapter “Installation →UD56-W: Wall, Tripod, and Table
Mount Kit” for detailed description.
It is not included in delivery, please order separately.

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Page 18
UD56S, UD56LS and UD56ES: Integrated LED Seconds Ring for UD56
The UD56 devices can be ordered as UD56S, UD56LS or UD56ES. These versions of UD56
are equipped with an additional LED ring. 60 LEDs arranged in a circle mark the seconds, 12
additional LEDs mark the 5-seconds intervals, and 4 additional LEDs mark the 15-seconds
intervals.
UD300D, UD300LD and UD300ED: Appended Display for UD300
The UD300 devices can be ordered as UD300D, UD300LD or UD300ED. These versions of
UD300 are equipped with a second display (HH:MM:SS). It can be attached to the bottom or
top of the housing. This display can receive a set-up independently from the main display.

Installation and Operating Manual UD Series Displays
Page 19
Interfaces
LTC (MTD)
Devices with this interface accept a standard LTC (SMPTE/EBU) signal. Refer to chapter
“Technical Data” for LTC input specifications.
Connect a balanced or unbalanced signal:
Balanced Unbalanced
MTD
LTC
12345
XLR3F
LTC IN
12 3XLR3M
LTC_IN_A
LTC_IN_B
GND
12
3
Cinch/RCA/BNC
MTD
LTC
123 45
LTC_IN_A
LTC_IN_B
GND
XLR3F
LTCIN
12 3
Plura has developed a system called the (MTD) Multiple Time Display system. An MTD system
consists of a central generator unit, user console(s), digital displays and/or analogue clocks.
The central generator unit generates and outputs a special LTC format. This LTC will
henceforth be denoted as LTC(MTD). The LTC(MTD) contains real-time, date and various user
selectable/configurable timers. Having the LTC(MTD) connected the device can be switched to
various operating modes (please refer to chapter “Display Tab”).
IRIG
“Universal” devices accept IRIG signals. Usually an unbalanced signal with BNC connector is
used. It can be connected the same way as the unbalanced LTC signal above.
RS485 (MTD)
This denotes a RS485 serial interface with “MTD” protocol. Refer to chapter “Technical Data”
for RS485 specifications.
Devices with this interface can be used in various applications:
•The UD Series Display can be a control unit of the MTD system, controlling an MTD timer
by use of external keys (GPIs with e.g. START, STOP and RESET functionality). The
RS485(MTD) has to be connected to the central timer unit, thus a communication between
these units can be established.
•Selecting the “MTD Slave” mode the device receives and displays timer values from a
“MTD Master” – please refer to chapter “MTD Slave: Local Stop Timer and External
Displays”.
•Selecting the “MTD Master” mode the device transmits the time of the local stop timer,
thus external units (“MTD Slaves” as a display or a video character inserter) can display
this timer as well.

Installation and Operating Manual UD Series Displays
Page 20
GPI
Four GPIs can get a function independently from each other, as an input or as an output.
Select the function from the drop-down lists (chapter ‘”GPI” Tab: Programming GPI as Input or
Output’). For technical details please refer to the chapter “Specifications”. The functionality
determines the input or output characteristic of the GPI.
Examples:
Switching the display mode Controlling the local stop timer or an MTD
by external buttons timer
UD
GPI
Buttons
5: GPI_1
4: GPI_2
3: GPI_3
2: GPI_4
1: GND
Mode TimerA
Mode Timer B
Mode Timer C
Mode Real Time
UD
GPI
Buttons
5: GPI_1
4: GPI_2
3: GPI_3
2: GPI_4
1: GND
START
STOP
RESET
HOLD
Impulse output during zero-crossing of
a down counter
UD
GPI
2: GPI_4
1: GND
RS232/RS422
Serial interface, selectable as RS232 or RS422. Devices with this interface decode a time
(HH:MM:SS) out of a serial data string. Various data formats can be selected (chapter ‘”Serial”
Tab: Set-Up of the Serial Interface’).
Examples:
RS232 RS422
6: TxD
5: RxD
4: RTS
3: CTS
2:
1: GND
2: RxD
3: TxD
8: CTS
7: RTS
5: GND
PC
RS232
ComPort
UD
RS232
RS422
UD
RS232
RS422
6: TA-
5: RB+
4: RA-
3: TB+
2:
1: GND
RA-
TB+
TA-
RB+
TxC
RxC
RS422
Device