Plura SC series Installation And Operator's Manual

Installation and Operating Manual

Version: 3.2

March 20, 2015

Studio Clocks

PLURA SC Series Clocks

Installation and Operating Manual Studio Clocks

Page 3

CONTENTS

A1 REVISION HISTORY
A2 COPYRIGHT
A3 WARRANTY
A4 UNPACKING/SHIPPING/REPACKAGING INFORMATION
A5 SAFETY INSTRUCTIONS
A6 CERTIFICATIONS & COMPLIANCES

FUNCTIONAL DESCRIPTION 10

INTRODUCTION 10
MODELS 12
ACCESSORIES 13

UD-EP: External AC/DC Power Supply 13
UD-PoE: Power over Ethernet 13

INTERFACES 14

LTC/MTD 14
RS232/RS422 14
Ethernet 15
Impulse Telegram: 2–Wire and 4–Wire Interface 15

OPERATIONAL FEATURES 16

The “Hand Detect” Procedure 16
Synchronizing to the Reference Input 16
Error Indication by an Error LED 17
Backlight 17

CONFIGURATION 18

The UD/SC Configuration Program 18

“Profile“ Tab: Reset to a Basic Configuration 19
“System“ Tab: View and Change System Parameters 20
“Source“ Tab: Select the Signal Source 22
“LTC“ Tab: Set-Up of the LTC Reader 23
“Serial“ Tab: Set-Up of the Serial Interface 24
“Ethernet“ Tab: : IP Addresses ... 25
“Real-Time“ Tab: Set the Time Zone Parameters 27
“Clock“ Tab: Select the Time, Backlight ... 29

FIRMWARE UPDATE 31

TECHNICAL DATA 32

CONNECTIONS AT THE REAR 32
SPECIFICATIONS 34
AC/DC POWER SUPPLIES 39

UD-EP: External Power Adapter 39
Safety Precautions 40

INSTALLATION 42

TERMINAL BLOCK CONNECTIONS 42
WALL MOUNTING 43

Installation and Operating Manual Studio Clocks

Page 4

A1 Revision History

No.

Date

Subject

0.x Preliminary documents, changes without notice.

1.0

October 21, 2008

First released document.

1.1

January 06, 2009

 2–wire interface: cable length revised.
 Chapter “Configuration” added.
 SC305E.

1.2

February 19, 2009

SC304L.

1.3

November 30, 2009

 2–wire interface with loop-through capability.
 More features for configuration.

2.0

September 22, 2010

Completely revised.

3.0

November 09, 2011

Specification revised.

3.1

August 10, 2012

Page layout revised.

3.2

April 02, 2014

Chapter “System Tab: View and Change System Parameters”: added note if password is lost.

A2 Copyright

Copyright © PLURA Europe GmbH 2002. 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

Muehlweg 11
D-73433 Aalen
Phone: ++49 - (0)7361 – 589 46 0
Fax: ++49 - (0)7361 – 589 46 55
E-Mail: [e-mail]
Internet: http://www.plura.tv

Installation and Operating Manual Studio Clocks

Page 5

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 are 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 Studio Clocks

Page 6

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 Studio Clocks

Page 7

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:

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.

Installation and Operating Manual Studio Clocks

Page 8

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 “Electro
Static Discharge (ESD) Precautions” below for details.

Installation and Operating Manual Studio Clocks

Page 9

Electro Static 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 sur-

face 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.

A6 Certifications & Compliances

CE-Declaration:

We,

PLURA Europe GmbH

Muehlweg 11
D-73433 Aalen

herewith declare under our sole responsibility that the

Studio Clocks, SC Series Clocks

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

Installation and Operating Manual Studio Clocks

Page 10

Functional Description

Introduction

These are the common features of our studio clocks:

 Completely self-setting.
 Maintenance free operation.
 Ultra quiet action.
 2-motor drive.
 Stepping second and minute hand.
 USB interface for setup and firmware flash updates.

The studio clocks adjust their time to an external reference. Various interfaces are available.
Studio clocks 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 a time via serial interface.

Studio clocks of version “E“:

 can be integrated in the MTD system of type MTDoE,
 can operate as an NTP Client and synchronize to an NTP Server.

Studio clocks of version “T“:

 receive power and time via a 2–wire interface.

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 studio clocks of
version “L”.

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. Studio clocks of version “E” 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.

Installation and Operating Manual Studio Clocks

Page 11

Please refer to “The MTD System – Installation and Operation Manual” to read about

installation and basic set-up of SC studio clocks in an MTD system.

Installation and Operating Manual Studio Clocks

Page 12

Models

The models differ by their housings, interfaces, battery-buffered real time clock (RTC), and
some optoelectronic outfits:

Interfaces

Model

Housing

LTC
MTD

Ethernet

2–Wire

RTC

AM/PM
Indicator

Back
light

Error
LED

SC303L

square

yes

no

no

yes

yes

yes

yes

SC304L

square

yes

no

no

yes

no

yes

yes

SC305L

square

yes

no

no

yes

no

no

no

SC303E

square

no

yes

no

yes

yes

yes

yes

SC304E

square

no

yes

no

yes

no

yes

yes

SC305E

square

no

yes

no

yes

no

no

no

SC306T

round

no

no

yes

no

no

no

no

Installation and Operating Manual Studio Clocks

Page 13

Accessories

UD-EP: External AC/DC Power Supply

This is a 24V/20W AC/DC power adapter. See chapter “Technical Data → AC/DC Power
Supplies → UD-EP: External Power Adapter” for detailed description.

This will be the right external AC/DC adapter for all studio clocks equipped with the 2-pole
DC connector.

UD-PoE: Power over Ethernet

Power over Ethernet or PoE technology describes a system to pass electrical power, along
with data, on Ethernet cabling.

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 connected to your studio clock.

Installation and Operating Manual Studio Clocks

Page 14

Interfaces

LTC/MTD

Devices with this interface accept a standard LTC (SMPTE/EBU) signal as a time reference.
Refer to chapter “Technical Data” for LTC input specifications.

Connect a balanced or unbalanced signal:

Balanced Unbalanced

1

2

3

XLR3M

MTD
LTC

1 2 3 4 5

LTC_IN_A
LTC_IN_B
GND

Cinch/RCA/BNC

MTD
LTC

1 2 3 4 5

LTC_IN_A
LTC_IN_B
GND

PLURA has developed a system called the (MTD) Multiple Time Display system. A 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 “Clock Tab”).

RS232/RS422

Serial interface, selectable as RS232 or RS422. Devices with this interface decode a time 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
Com Port

SC
RS232
RS422

SC
RS232
RS422

6: TA­5: RB+
4: RA­3: TB+
2:
1: GND

RA­TB+
TA­RB+

TxC
RxC

RS422
Device

Installation and Operating Manual Studio Clocks

Page 15

Ethernet

10/100Base-T Ethernet interface. Devices with this interface work either as a NTP Client or as
a part of the MTDoE System.

NTP Client: The “Network Time Protocol” (NTP) is used for time synchronization within
networks. NTP servers are queried by NTP clients, which then can synchronize their
internal clocks accordingly. SC studio clocks operating in this mode can connect to such a
server and synchronize to it.

MTDoE 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 the stop timers. The MTDoE system utilizes the Ethernet to
transport the MTD data. SC studio clocks operating in this mode can receive these data
and synchronize to an MTD time.

Impulse Telegram: 2–Wire and 4–Wire Interface

The clocks receive power and data via a 2–wire interface. The “TELEGRAM“ output of a
RUBIDIUM distribution module transmits the appropriate time telegram, i.e. negative going
pulses each second. The complete data set (i.e. time, date, check and synchronization bits) is
spread over one full minute. Connect the wires (e.g. of type J-Y(ST)Y) at a terminal block
located at the rear. You cannot damage the clock by a reverse polarity, because the wires are
interchangeable.

It is provided to connect a 4–wire interface instead of 2–wire. The 4–wire interface has
separate DC and data lines. In this case the wires are not interchangeable. The use of 2–wire
or 4–wire can be selected by a jumper.

2–wire

4–wire

Jumper setting and
connections at the
SIGNAL/DC
connector.

Jumper fitted.

1 2 3 4

SIGNAL/DC

Jumper

Signal +
Signal -

Telegram

Loop-through
to further clocks

Connect: 1: Loop of pin 2

2: Signal+
3: Signal–
4: Loop of pin 3

Jumper removed.

1 2 3 4

SIGNAL/DC

Jumper

V­Signal - (GND)
Signal +
V+

Connect: 1: V+

2: Signal+
3: Signal–
4: V–

Refer to chapter “Technical Data” for more detailed specifications.

Installation and Operating Manual Studio Clocks

Page 16

Operational Features

The “Hand Detect” Procedure

Studio clocks are equipped with a sensor which can detect the six o’clock position of the
hands. During the “hand detect” procedure the hands will be moved rapidly (≈ 3 Hz). There is
one motor for the second’s hand and one motor for the minute’s and hour’s hands. The pro­cedure starts a few seconds after power-on.

In the first step the second’s hand will be moved to pass the sensor. If the sensor was able to
detect the second’s hand the hand now will be moved to the 12 o’clock position. In case the
sensor could not detect the second’s hand after 60 steps it is assumed that the sensor is
covered by the minute’s or the hour’s hand. So these hands will be moved a bit, then the
procedure starts again.

Next the position of the minute’s hand has to be detected. Both the minute’s and the hour’s
hands will start to move. Because the minute’s hand gives a short signal to the sensor com­pared to the hour’s hand it is possible to distinguish between these two hands. After success-
fully detected the minute’s hand the position of the hour’s hand has to be detected. Now

every time the minute’s hand passes the 12 o’clock position it stops for one second
indicating that its position has been verified. After successfully detected the hour’s hand the
hands will show six or seven o’clock.

Under normal circumstances the duration of the whole procedure will be nine minutes
maximum.

Synchronizing to the Reference Input

Having an external time reference connected (see chapter “interfaces”) the studio clock
synchronizes its internal clock to this reference during the “hand detect” procedure. So just

after detecting the positions of the hands the studio clock moves the hands to the correct
time.

Without an external reference the behaviour depends on the model. Models with built-in real
time clock (RTC) will show the time of the RTC. Models without RTC or with a faulty RTC will
just wait for a reference, so the hands will not move after the “hand detect” procedure.

If the external reference gets lost during normal operation the clock continues the time with
its internal clock.

Installation and Operating Manual Studio Clocks

Page 17

Error Indication by an Error LED

Some models indicate an error
by a red LED at the front.

This LED lights up in case of a
source failure.

Models until Oct. 2011

Alpermann +Velte

Models from Nov. 2011

Alpermann +Velte

Backlight

Some models have a backlight of white LEDs. The brightness can be adjusted via
configuration – please refer to chapter “Configuration” – “’Clock’ tab ...”.

Models from November 2011 additionally offer two buttons. Please use a small tool to reach
the button inside the opening. Button left = increase brightness; button right = decrease
brightness.

Installation and Operating Manual Studio Clocks

Page 18

Configuration

The UD/SC Configuration Program

Configuration requires the UD SC Config.exe program running on a computer (32 or 64 bit
Windows operating system 2000/XP/2003/Vista/2008/7). You can download the latest
version of the program from:

http://plura.tv/service/688).

Every SC device can be configured via a USB interface. “E” version devices can be configured
via Ethernet as well; the computer then must be connected to the network. Access via

Ethernet can be protected by a password (chapter “System Tab”). Firmware update is
performed by this program as well, but this requires the USB connection (chapter “Firmware
Update”).

USB connection requires a standard USB cable (A – B type). It is recommended but not
needed to have the device connected to an external power supply. If no power supply is
connected, the device can be configured as usual, but the device will stay in a shut-off mode,
regardless of current set-up. The first time the device is plugged to the PC, Windows will
install a driver for it. This driver is part of Windows, you don’t need a CD.

After program start a list is given of all devices found:

Open the configuration by marking the device on the list and pressing button “Configure”, or
by a double click on a device in the list. Additional tabs will be shown. On these tabs you can
check or change the configuration of the selected device as described in the following
chapters.

Installation and Operating Manual Studio Clocks

Page 19

“Profile“ Tab: Reset to a Basic Configuration

With a click on the Load button the Load Profile window opens.

Click on OK to set the device into a basic configuration.

Installation and Operating Manual Studio Clocks

Page 20

“System“ Tab: View and Change System Parameters

Unit

Name Give the device a significant name. This name appears wherever SC devices can

be found, either via Browser or via USB.
Enter a text (10 characters) in the Name field. Complete with Enter or Tab key.

Reboot Warm boot of the unit.

Security – available only for “E” version devices

It is provided to protect the unit against non permission or unintentional access via Ethernet.
Any configuration with a USB connection ignores the password.

With a click on the Change button the following entry opens:

Enter the password twice and press the OK button.
Clear an existing password by checking No Password.
Password forgotten? → Please read chapter “Passwords” of “The MTD System” manual.

Info

Installation and Operating Manual Studio Clocks

Page 21

Indicates some device status, e.g. the version of the installed firmware.

Installation and Operating Manual Studio Clocks

Page 22

“Source“ Tab: Select the Signal Source

“L” version devices: “E” version devices:

“L” version devices:

LTC(MTD) Please refer to chapter “Interfaces – LTC (MTD)“ as well. LTC(MTD) denotes a

special LTC format which contains the local time and various user selectable/­configurable timers. Only this choice enables the device to use the extensive
functionality of the PLURA MTD system.

LTC Please refer to chapter “Interfaces – LTC (MTD)“ as well. With this operating

mode the device reads a standard LTC signal. The tabs “LTC“ and “Real-Time“

offer additional set-ups. Typical application:

 Real-time functionality with offset selection for different time zones.

Serial Please refer to chapter “Interfaces – RS232/RS422“ as well. This operating

mode enables the serial interface. The tabs “Serial“ and “Real-Time“ offer

additional set-ups. Typical applications:

 Decoding a time out of a serial protocol.
 Real-time functionality with offset selection for different time zones.

“E” version devices:

MTD SC studio clocks are able to decode the MTD data. These data include the local

time, six independent programmable timers A – F, and a time of a time code.
Each timer can show a stop timer, a remaining time, a time difference, a time
of a time zone etc.

NTP SC studio clocks operating in this mode can connect to an NTP server and

synchronize to it. The received reference time can get a programmable offset.
It is possible to enable a Daylight Saving Time handling.

Installation and Operating Manual Studio Clocks

Page 23

“LTC“ Tab: Set-Up of the LTC Reader

This tab is available in case of source = LTC.

Framerate Select the frame rate of the incoming LTC signal:

 Auto = automatic detection (24/25/30/30df).
 24 = 24 frames/second.
 25 = 25 frames/second.
 30 = 30 frames/second.
 30df = 29.97 frames/second with NTSC drop mode.

User Mode The real-time operating mode expects time & date from the external

reference. Please select the format of the date so that the date can be
decoded out of the user bits (binary groups) of the LTC.

The date becomes important e.g. in a real-time operating mode if a Daylight
Saving Time [DST] switching should be done automatically.

Installation and Operating Manual Studio Clocks

Page 24

“Serial“ Tab: Set-Up of the Serial Interface

This tab is available in case of source = Serial.

Interface Electrical RS232 or RS422.

Protocol Select the data protocol out of the dropdown list.

The data protocols can be divided into “real-time” and “display” protocols.
Real-time protocols convey time & date with an always continuously up-

counting time, e.g. the “Meinberg“ and “NMEA“ protocols. These protocols are

suitable for a real-time operation of the device. Display protocols can convey
an up-counting, a down-counting or a “frozen” time and are not suitable for
this device.

Some data protocols may contain an address. The device accepts the data only
if the address matches the serial address selection at the “Clock” tab.

Baudrate/Data Bits/Parity/Stop Bits Select the parameter of the data transmission.

Use Timeout ASCII based protocols in general use STX and ETX to synchronize the com-

munication. Other protocols may use a timeout for this purpose. The receiver
expects the start of a new data string if for the time of the timeout value [in
milliseconds] no data has been received.

Select a suitable Timeout value dependent on baud rate and frequency of the
data. Recommendation:

Baud rate Timeout [ms] Timeout [ms]
Data string per second Data string per frame

2400 100 ­4800 100 ­9600 100 6
19200 100 11
≥ 38400 100 14

Installation and Operating Manual Studio Clocks

Page 25

“Ethernet“ Tab: : IP Addresses ...

“Source = NTP“ “Source = MTD“:

Interface

Use DHCP With this checkbox activated the device will automatically request its IP

parameters (IP address, subnet mask and gateway) from a DHCP server. In
this case the “IP Address”, “Subnet Mask” and “Gateway” boxes have no
relevance.

Please let the device restart (power off – on) if you select this mode.

IP Address The IP address of the device.

Subnet Mask The subnet mask helps the device to locate other IP devices (e.g. the NTP

server) within the local network or within other networks using the
gateway.

Gateway The gateway IP address, used only if the device should communicate with

IP addresses beyond the local network.

NTP Client - if “Source = NTP“ has been selected

Enter the IP addresses (primary and secondary) which the NTP client of the device uses to
request time & date information of a NTP server.

MTD - if “Source = MTD“ has been selected

Installation and Operating Manual Studio Clocks

Page 26

Verify and maybe change the MTDoE group number.

Show Current Configuration Click this button to see the current Ethernet configuration:

Installation and Operating Manual Studio Clocks

Page 27

“Real-Time“ Tab: Set the Time Zone Parameters

Working in a real-time operating mode the device receives an external time & date reference
and calculates the UTC (Universal Time Coordinated = world time reference without a
Daylight Saving Time [DST]), to set the internal clock. Having the UTC as a time base any local
time zone can be calculated and displayed. At this tab all the necessary settings for these
calculations have to be done.

The Reference Time Zone and the Local Time Zone settings use the same principle: the time
zone will be defined with respect to the UTC. Devices with an additional display can be set to
different local time zones, in this case settings for more than one local time zone are
provided.

Enable Real-Time Enables or disables the time zone handling. If activated the real-time

indication switches to internal clock if the source fails.

Set Clock ... Pressing this button the internal clock receives a hard set to the time of

the PC clock. If no external reference source is available and the device
should work in a free-running mode we recommend the following set­up: Select Serial at the “Source” tab.

Select Interface = Off at the “Serial” tab.
Activate Enable Real-Time at the “Real-Time” tab.

Installation and Operating Manual Studio Clocks

Page 28

Offset from UTC

Enter the sign and hours/minutes offset for the standard time (winter time) to
UTC.

Automatically set Daylight Saving Time

Check this box if the reference input has a DST period.

If the time zone has a DST period the following parameters should be selected:
DST Bias Enter the DST correction value. Most of the cases the correction value will be (+)

one hour.

DST Start Using these inputs (e. g. last Sunday of March at 2 o’clock) the device calculates

the start of DST for the current year.

DST End Using these inputs (e. g. last Sunday of October at 3 o’clock) the device calculates

the end of DST for the current year.

Installation and Operating Manual Studio Clocks

Page 29

“Clock“ Tab: Select the Time, Backlight ...

Mode Select the time indication – only if “Source = LTC(MTD)” has been selected:

Mode

Description

Real-Time

Clock shows the real-time, decoded out of the LTC(MTD).

LTC

Clock shows the LTC time.

Timer A ... F

Clock shows the selected timer (time zone) decoded out of the LTC(MTD).

Main 1 ... 3

Clock shows “Main Time 1” (... 3) decoded out of the LTC(MTD).

Time Zone This set-up defines your real-time operating mode together with the set-up at

the Real-Time tab.

Time
Zone

Enable Real-Time at
the Real-Time tab

Description

Off

Not checked

Shows the time of the source without offset calculation.
Clock continues if the source fails.

Off

Checked

Displays the time of the source +/- offset according to
“Reference Time Zone“ set-up. Clock continues if the
source fails.

Time
Zone 1

Time
Zone 2

Checked

The time of the source will be corrected with the offset
according to “Reference Time Zone“ set-up. This time
base +/- offset according to „Local Time Zone“ will be
the time showed. Clock continues if the source fails.

Brightness

Backlight Brightness of the backlight and the AM/PM indicator:

7 steps, 7 = maximum brightness.

Serial

Address Some serial data protocols may contain an address. The device accepts the

data only if the address matches the serial address selection at this tab. If
the device has an additional display, the clock and the display get their own

Installation and Operating Manual Studio Clocks

Page 30

address.

Installation and Operating Manual Studio Clocks

Page 31

Firmware Update

Firmware updates require a (windows operating system) computer with a USB interface and
the UD SC Config.exe program. You can download the latest version of the program from:

http://plura.tv/service/688).

The new firmware should already be stored as a .tcf file at your computer.

Please now execute the following steps:

1. Connect the device to the computer with a standard USB cable (A – B type). It is recom-

mended not to have more than one device connected to this USB port.

2. Execute UD SC Config.exe on your computer. The program gives a list of all devices

found. Click (not a double click) on the device in the list which shows the USB
connection.

3. Select “Flash Update“ in the File menu.

4. Open the .tcf file. The program checks whether the new firmware matches the correct

type of the device. In case there is no match an error message appears: “Incompatible

Flash Update File”. Update starts automatically if everything is ok. Click the OK button at
the end.

5. Update is finished now. We recommend checking the configuration of the device.

During the flash update the operation of the device stops!

Installation and Operating Manual Studio Clocks

Page 32

Technical Data

Connections at the Rear

Square housing:

GPI

MTD
LTC

DC

RS232
RS422

USB

1 21 2 3 4 51 2 3 4 5 61 2 3 4 5

ETHERNET

Round housing:

USB

1 2 3 4

SIGNAL/DC

Pin assignments:

GPI

1: GND
2: GPI_4
3: GPI_3
4: GPI_2
5: GPI_1

RS232/RS422

1: GND
2: Vout
3: CTS / TB+
4: RTS / RA­5: RxD / RB+
6: TxD / TA-

ETHERNET

RJ45
Connector

USB

Type-B
Connector

MTD/LTC

1: GND
2: LTC_IN _B
3: LTC_IN_A
4: RS485 TRB
5: RS485 TRA

DC

1: V–
2: V+

SIGNAL/DC

1: V+
2: Signal+
3: Signal–
4: V–

Installation and Operating Manual Studio Clocks

Page 33

Signal descriptions:

GND

Signal ground.

GPI_1, GPI_2
GPI_3, GPI_4

Programmable General Purpose Interfaces: Inputs or Outputs.
Vout

DC voltage output.

ATTENTION: Using “Vout” please make sure not to exceed the
total power rating of the connected Power Supply adapter.

CTS, RTS, RxD, TxD
TB+, RA-, RB+, TA-

Signal lines of the RS232 serial interface.

Signal lines of the RS422 serial interface.

LTC_IN_A, LTC_IN_B

Balanced LTC (Linear Time Code) input.

RS485 TRA, RS485 TRB

Balanced in- or outputs of a RS485 serial interface.

V–, V+

Power supply input:

V– = GND

V+ = DC voltage input

Signal+, Signal–

Time telegram input of the 2–wire interface.

Installation and Operating Manual Studio Clocks

Page 34

Specifications

LTC input

Format

According to ANSI/SMPTE 12M-1-2008, balanced

Input impedance

18 k

Signal level

100 mV

p-p

to 5 V

p-p

, auto-ranging

Frequency

20–38 frames/s

RS485

RS485(MTD) Format

9600/8/E/1

Ethernet

Medium

10Base-T or 100Base-T, automatic detection

GPI

Input specification

Input “Low“: –24.0 to +0.7 V
Input “High“: +2.0 to +24.0 V

Impedance: ≈ 24 kΩ
Frequency: 0–10 kHz

GPI

Output specification

Open Collector output of a NPN Darlington transistor.
Internal 33 k pull-up resistor.

Max. power dissipation: 250 mW.

“High“ state: 2.4 V (no load). For higher switching levels an external

pull-up to a positive power source of less than or equal to 24 VDC is
needed, typically 1 kΩ when connected to an external +5 VDC power
source.

“Low“ state: output switched to GND.
Max. collector current: 200 mA DC, not fused.
Collector-emitter saturation voltage:

@ 20mA: typical 0.72 V ( 0.85 V)
@ 100mA: typical 0.9 V ( 1.1 V)

Frequency: 0–1 kHz

Vout

Output of the DC
power supply

Reversible fused. A continuous current of up to 120 mA can be
applied over the whole specified operating temperature range. At an
ambient temperature of e.g. 22 °C the output switches to a high­resistance state after a few seconds if a current of 400 mA is applied.

Other common specifications

Environmental characteristics,

Temperature: +5 °C to +40 °C

Installation and Operating Manual Studio Clocks

Page 35

operating

Relative humidity: 30 % to 85 %, non-condensing

Environmental characteristics,
non-operating

Temperature: –10 °C to +60 °C
Relative humidity: 5 % to 95 %, non-condensing

Installation and Operating Manual Studio Clocks

Page 36

Model dependent specifications

Model

Dimensions
(W x H x D)

Weight

Operating voltage

Power/Current
consumption

SC303L

SC303E

SC304L

SC304E

324 x 324 x 57 mm

12.75 x 12.75 x 2.25 in

≈ 3.2 kg

Models until 10/2011:
V+: 10–30 VDC

Models from 11/2011:
V+: 15–30 VDC

SC303L: 7.6 W

SC303E: 8.0 W

SC304L: 7.6 W

SC304E: 8.0 W

SC305L

SC305E

324 x 324 x 57 mm

12.75 x 12.75 x 2.25 in

≈ 3.1 kg

V+: 10–30 VDC

SC305L: 1.0 W

SC305E: 1.3 W

SC306T

300 x 300 x 65 mm

11.81 x 11.81 x 2.65 in

≈ 970 g

See specifications of
2–wire and 4–wire

max 110 mA

4–wire interface: V+/V– and signal+/signal–

V+/V–

Operating voltage: 10–30 VDC

Signal+/Signal–

Signal– = signal ground.

“High” level of Signal+: > 4.5 V and ≤ 30 V
“Low” level of Signal+: ≥

–0.5 V and < 4.5 V

Signal+ input impedance: ≥ 50 kΩ
Time telegram with negative going pulses, coding according to the

DCF77 time code.

Installation and Operating Manual Studio Clocks

Page 37

2–wire interface: signal+/signal–

Signal input
specification

“High” level of signal input: ΔV between signal+ and signal– under

full load must be ≥ 19 V and ≤ 30 V.

“Low” level of signal input: ΔV between signal+ and signal– under

full load must be ≥ –0.5 V and ≤ 0.5 V.

Time telegram with negative going pulses, coding according to the
DCF77 time code.

Driver capability of
RUBIDIUM Series
distribution
modules

Each output stage of a VD or VL or GT-Option M module is capable of
driving two studio clocks. Each output stage of a VT module is
capable of driving eight studio clocks. The RUBIDIUM modules must
receive power from a 24 VDC power supply.

Cable lengths
connecting at
RUBIDIUM Series
distribution
modules

Under the driver conditions described above it is recommended not
to exceed the following cable lengths dependent on the number of
studio clocks (1/2 and 1/2/8) connected:

Cross section type of wire length [m] length [m]
[mm2] example at VD/VL/GT at VT
1 2 1 2 8

0.205 AWG24 solid bar 165 45 270 132 22

0.280 J-Y(ST)Y ..x2x0.6 225 60 370 180 30

0.324 AWG22 solid bar 260 70 420 206 33

0.500 J-Y(ST)Y ..x2x0.8 410 100 670 330 53

0.519 AWG20 solid bar 430 110 700 343 55

Note: Network CAT5 cables use AWG24 or AWG26 wires, please
check. It is not recommended to use conductors with cross sections
less than 0.2 mm2 (AWG24/1). AWG26-7/34 wires have a cross section
of 0.141 mm2. CAT cables contain four pairs of wires. The wires of a
pair are twisted together. It is possible to enlarge the cross section or
to reduce the number of clocks per line by using several pairs of the
cable. A pair can be identified by the colour: Solid colour wire + white
and colour striped wire.

orange
green
blue
brown

Conductor size

CAUTION: The maximum continuous current rating for a cable is
limited by many factors. The following recommendation indicating
the maximum number of 2–wire clocks connected to one line gives
enough safety to prevent overheating the cable. The number relates
to cable with 2–3 conductors, the number in brackets relates to cable
with 6–10 conductors. It is not recommended to use conductors with
cross sections less than AWG24/1.

Cross section [mm2] e.g. type of wire number

Installation and Operating Manual Studio Clocks

Page 38

0.205 AWG24 solid bar 26 (18)

0.280 J-Y(ST)Y ..x2x0,6 31 (21)

0.324 AWG22 solid bar 35 (24)

0.500 J-Y(ST)Y ..x2x0,8 43 (30)

0.519 AWG20 solid bar 46 (32)

Installation and Operating Manual Studio Clocks

Page 39

AC/DC Power Supplies

UD-EP: External Power Adapter

The “UD-EP” AC/DC adapter is an accessory for the PLURA SC Studio Clocks.

It has a fully enclosed plastic case, a three pole AC inlet according to IEC/EN 60320-1/C14
protection class 1, and a DC output cable with a plug suitable to connect to the DC terminal
block of the SC studio clock. The power supply cord must match the AC outlet of your
country and is not part of the delivery.

Please notice the following specifications:

Input

100–40 VAC / 0.6 A / 47–63 Hz

Output

24 VDC, 850 mA, 20 W max.

Length of output cable

115 cm / 45.3 in

Dimension (W x H x D)

50 x 30 x 110 mm / 1.97 x 1.18 x 4.33 in

Weight

165 g (incl. output cable)

Environment

Operating: temp. +0 °C to +40 °C, humidity 20 –80 %
Storage: temp. –20 °C to +85 °C, humidity 10–95 %

Safety standards

EN60950, UL listed

Installation and Operating Manual Studio Clocks

Page 40

Safety Precautions

The general safety information in this part is for both operating and service personnel. PLURA
products and accessories are only to be used as directed. Review the following safety
instructions to avoid injury and prevent damage to the product or any products connected to
it.

RECOMMENDED INSTALLATION

1. Make use of the strain relief plate to avoid stressing the conductors.

2. Make sure that the power cord is not inserted when you plug the DC output
connector to the terminal block of your device.

3. Insert the power cord into the three pole AC inlet of the AC/DC adapter.

4. Plug the power cord into the wall outlet.

WARNING

Use a power supply cord that matches the power supply voltage of the AC power
outlet. The power supply cord you use must have been approved by and comply
with the safety standards of your country.

Never modify the power cord or excessively bend, twist, or pull it. Do not place any
heavy objects on the power cord or expose it to heat. Damage to the cord may
cause shock or fire.

Use only the AC adapter specified for the PLURA product. Never use a voltage
other than that for which the AC adapter is rated.

Do not place any objects onto the AC adapter and do not use the AC adapter
outdoors. Keep the AC adapter away from heat sources.

Never touch the AC adapter while your hands are wet. To avoid injury or fire
hazard, do not operate in an explosive atmosphere.

Immediately unplug the power cord from the wall outlet or extension cord and
refer servicing to qualified servicing personnel, when the power cord or plug is
damaged, split or broken.

CAUTION

Do not expose the AC adapter to dripping or splashing water.

Make sure that the power cord is fully inserted into the wall outlet or extension
cord.

Make sure that you unplug the AC adapter from an outlet before attempting to
move it to another location.

Always carefully disconnect the plug by pulling on the plug and not on the cord.

PREVENTIVE MAINTENANCE, QUALIFIED SERVICE PERONNEL ONLY

Installation and Operating Manual Studio Clocks

Page 41

Visually inspect the AC adapter for signs of damage. If you discover heat damage,
try to determine the cause of the overheating before replacing the AC adapter;
otherwise, the damage may repeat.

At least once a year, unplug the AC adapter from the power outlet and clean the
area around the prongs of the plug. Dust accumulated around the prongs ­especially under high humidity conditions - can result in fire.

Installation and Operating Manual Studio Clocks

Page 42

Installation

Terminal Block Connections

The terminal block connection consists of the male connector fixed to the printed board and
the pluggable female connector. The terminal blocks are protected against mismating.

Conductors have to be inserted into the clamping units. A clamping unit consists of a spring
pressure connecting system which safely clamps the inserted conductor.

For installation please detach the pluggable part.

To introduce (or pull out) the conductor the clamping spring has to be opened. Use a small
screwdriver or a similar tool with a fine tip (≈ 2.5 x 0.4 mm / ≈ 0.098 x 0.016 in). Insert this
tool into the operating slot and push it to open the clamping spring. Then immediately push
the conductor in up to the stop (or pull it out). Please refer to picture 1.

Picture 1 Picture 2

Acceptable wires: Solid, stranded, fine-stranded or tip bonded stripped conductors.

Sizes: cross sections 0.08–0.5 mm2, AWG 28–20, Ø 0.33–0.96 mm.

Conductor material: copper or tin plated copper.

Stripping:

5 - 6 mm / 0.22 in

The female connector has marker strips. Additional coding is possible by removal of coding
finger(s). Using the strain relief plate is recommended to avoid stressing the conductor.
Please refer to picture 2.

CAUTION: These connectors can only be mated and unmated at voltages below
42 V and in the “no load” condition.

Installation and Operating Manual Studio Clocks

Page 43

Wall Mounting

Square clock

All dimensions in millimetres.

28 29

57

324

320

73

18562189

324
320

65 190 65

19465 65

15 15160

10

6

12

52

Screws or hooks with diameters up to 6 mm (0.236 in) can be used.

20

12

Ø

= 10

Ø

= 6

Installation and Operating Manual Studio Clocks

Page 44

Round clock with 2–wire interface

All dimensions in millimetres.

Use the metal bow for wall mounting.

Screws or hooks with diameters up to 5.5 mm (0.217 in) will fit into the bow.

USB

1 2 3 4

Øi

= 5.5



50

300

300

65

53

12

SIGNAL/DC