Plura RUBIDIUM Series User manual

TIMING SOLUTIONS
Rubidium Series
RUB SW
Word Clock Monitoring and
Changeover Module
DARS Monitoring and Changeover
Module
Functional Description and Specifications
Supplement to the “Installation & Systems Manual RUBIDIUM SERIES”
Version: 4.2
December 2, 2020

Functional Description and Specifications RUB SW Page 3
CONTENTS
A1 REVISION HISTORY
A2 COPYRIGHT
A3 GENERAL REMARKS
1MODULE “SW” 7
1.1 GENERAL DESCRIPTION 7
1.2 REAR PANEL AND CONNECTIONS 8
1.3 SPECIFICATIONS 10
1.4 TYPICAL APPLICATION DIAGRAMS 11
1.5 SOFTWARE UPDATE 12
1.6 ELECTRONIC PART EXCHANGE 13
2OPERATING DESCRIPTION 14
2.1 FUNCTIONAL OVERVIEW 14
2.1.1 Basic Functions 14
2.1.2 Overview of Error Indications and Alarms in General 15
2.1.3 Overview of Error Indications at the Status Monitor 16
2.1.4 Error Reset 17
2.2 WORD CLOCK MONITORING 18
2.2.1 Overview 18
2.2.2 Measurement of Signal Level 19
2.2.3 Measurement of Signal Frequency 19
2.2.4 Signal to Signal Drift 21
2.2.5 Signal to PPS Drift 21
2.2.6 Consequences of Errors 22
2.3 WORD CLOCK CHANGEOVER 24
2.4 REAL-TIME REFERENCE MONITORING 25
2.4.1 Overview 25
2.4.2 The Individual Errors and Consequences of Errors 26
2.5 SELF TEST 28
2.6 ALARMS 30
2.6.1 Overview and Suggestions for Installation 30
2.6.2 Alarms by GPO Outputs 31
2.6.3 Alarms by SNMP Traps 32
2.6.4 Entries in the Log File of an Ethernet Module 33
3STATUS MONITOR 34
3.1 STATUS MONITOR BY THE ETHERNET MODULE 34
3.2 STATUS MONITOR BY A PC PROGRAM 34
3.3 SYSTEM STATUS 35
3.4 SIGNAL INPUT STATUS 37
3.5 TIME & DATE REFERENCE STATUS 39
3.6 STATUS OF FAN AND POWER SUPPLIES 40

Page 4 Functional Description and Specifications RUB SW
4THE RUBIDIUM CONFIGURATION TOOLS 41
4.1 THE RUBIDIUM CONFIGURATION PC PROGRAM 41
4.2 THE RUBIDIUM SERIES HTTP SERVER 42
4.3 “FUNCTIONS“ 43
4.4 “KEYS“: KEYS AND LAMPS, LEDS AND GPOS 44
4.5 “SWITCHER“: SET-UP OF GENERAL PARAMETERS 47
4.6 “WORD CLOCK“: SET-UP OF WORD CLOCK MONITORING 49
4.7 “LINK”: COMMUNICATION BETWEEN MODULES 51
4.8 “SYSTEM“: IDENTIFICATION, RESET, SNMP, FAN CONTROL 52

Functional Description and Specifications RUB SW Page 5
A1 Revision History
No.
Date
Subject
0.n
Preliminary documents, changes without notice.
1.0
August 6, 2010
First released document.
1.1
Revised.
2.0
February 21, 2011
Completely revised.
3.0
May 7, 2013
▪Revised.
▪Entries can be made to the log file of an Ethernet module.
▪The TC_link telegram ‘Reference’can be sent.
4.0
March 1, 2014
DARS functionality.
4.1
September 3, 2019
Changed address of Plura Europe GmbH.
4.2
November 4, 2019
Fixed NMEA baud rate to 4800.
4.3
December 2, 2020
Re-formatted in new design.
Due to constant product development the features of this module are subject to change. The
current functional description always refers to the current software and the current
configuration tool.
You can download the latest version of the standard software from
http://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.

Page 6 Functional Description and Specifications RUB SW
A2 Copyright
Copyright © Plura Europe GmbH 2002-2020. 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: https://www.plurainc.com
A3 General Remarks
This manual is a supplement to the ‘Installation & Systems Manual RUBIDIUM SERIES’. Please
read the below listed chapters of the ‘Installation & Systems Manual RUBIDIUM SERIES’, as
these chapters are necessary for the safe and proper use of RUB modules:
•A3 Warranty,
•A4 Unpacking/Shipping/Repackaging Information,
•A5 Safety Instructions,
•A6 Certifications & Compliances,
•Plug-In a Module,
•Remove a Module.

Functional Description and Specifications RUB SW Page 7
1 Module “SW”
1.1 General Description
This module can supervise and analyse incoming Word Clock and DARS signals of two
sources. Each source can deliver up to four different Word Clock and two different DARS
signals. In the event of a failure of one source, SW automatically switches to the other faultless
source. The SW module is a must for all Word Clock/DARS systems where a failure proof and
redundant Word Clock and DARS is a requirement. Additionally, it offers a status monitor
indicating errors, failures, and status information of all incoming signals.
A PC or the RUB IE module is required for the configuration of this module.
The front panel label SW visibly identifies where each module is located. The serial number is
located on the bottom side of the lower circuit board of each module.
The standard hardware of this module has all of the following key features:
•“Hot Swapping“, i.e. it is possible to insert or remove a module without interrupting the
operation of other modules in this frame.
•Failure relay, connected to the FAIL_A and FAIL_B pins of the RLC connector at the rear of
the frame.
•RS232 and TC_link (RLC connector) interfaces to have access to the internal bus of the
chassis.
•Four programmable function keys, lamps and LEDs on the front panel (RUB1 version only).
•Flash memory containing the firmware, so configuration and updates are possible via a
PC connection. You can download the latest version of the program from:
https://www.plurainc.com.
•2 x 4 Word Clock inputs.
•2 x 2 DARS inputs.
•Changeover regarding the Word Clock and DARS signals utilizing latching relays.
•Alarm outputs indicating failures and warnings: Lamps and LEDs (RUB1 version only),
GPOs, SNMP traps, and entries in the log file of an Ethernet module.
•Inputs for signals of a real-time reference (PPS, time & date data string).

Page 8 Functional Description and Specifications RUB SW
1.2 Rear Panel and Connections
DARS IN2
DARS OUT
8 . . . . . 1 8 . . . . . 1
1 . . . . . 8 1 . . . . . 8
REF/GPO
CLOCK IN 2
8 . . . . . 1
1 . . . . . 8
CLOCK IN 1 DARS IN1
CLOCKOUT
1 2
3 4
CLOCK OUT 1
BNC
CLOCK OUT 2
BNC
CLOCK OUT 3
BNC
CLOCK OUT 4
BNC
CLOCK IN 1
RJ45 jack
4: GND
5: CLOCK IN 1_1
3: CLOCK IN 1_2
6: GND
1: CLOCK IN 1_3
2: GND
7: CLOCK IN 1_4
8: GND
CLOCK IN 2
RJ45 jack
4: GND
5: CLOCK IN 2_1
3: CLOCK IN 2_2
6: GND
1: CLOCK IN 2_3
2: GND
7: CLOCK IN 2_4
8: GND
CLOCK IN 1/CLOCK IN 2
can be connected straight
(1:1) to the CLOCK OUT
(RJ45) at the RUB GW
module.
DARS IN 1
RJ45 jack
4: Signal 1_1 –
5: Signal 1_1 +
3: Signal 1_2 +
6: Signal 1_2 –
1, 2, 7, 8: GND
DARS IN 2
RJ45 jack
4: Signal 2_1 –
5: Signal 2_1 +
3: Signal 2_2 +
6: Signal 2_2 –
1, 2, 7, 8: GND
DARS IN 1/ DARS IN 2
can be connected straight
(1:1) to the DARS OUT (RJ45)
at the RUB GW module.
REF/GPO
RJ45 jack
1: PPS IN
2: RXD IN
4: GND
5: not connected
3: GPO_1
6: GPO_2
7: GPO_3
8: GPO_4

Functional Description and Specifications RUB SW Page 9
Signal descriptions
GND
Signal ground.
CLOCK IN
Word Clock signals, 8 inputs: 1_1 to 1_4 and 2_1 to 2_4.
CLOCK OUT
Word Clock signals, 4 outputs: Switched via relay to the corres-
ponding Word Clock inputs of CLOCK IN 1 or CLOCK IN 2.
DARS IN
Digital Audio Reference Signal, 4 balanced signal inputs:
1_1 and 1_2 of DARS IN 1; 2_1 and 2_2 of DARS IN 2.
DARS OUT
Digital Audio Reference Signal, 2 balanced signal outputs:
Switched via relay to the corresponding balanced inputs of
DARS IN 1 or DARS IN 2.
PPS IN
RXD IN
Pulse per second, input. Time mark of a real-time reference.
Reference time & date input, serial data string.
GPO_1 …GPO_4
Output signals, indicating failures and warnings.

Page 10 Functional Description and Specifications RUB SW
1.3 Specifications
Word Clock inputs CLOCK IN
Connector
RJ45 –suited for direct connection to CLOCK OUT of RUB GW
Input impedance
≈ 22 kΩ @ 48 kHz
Signal level
0.5 Vpp to 6.0 Vpp
Frequency
32 kHz to 256 x 48 kHz
PPS IN
Connector
Pin 1 at RJ45 REF/GPO
Characteristic
Typical input signal: 5 V impulse
Input impedance: ≈ 100 k
Input “Low“: -2.0 to +1.7 V
Input “High“: +2.8 to +12.0 V
RXD IN
Connector
Pin 2 at RJ45 REF/GPO
Characteristic
Typical input signal: RS232
Input impedance: ≥ 30 k
Input “Low“: -15.0 to +1.0 V
Input “High“: +2.8 to +15.0 V
Frequency: 0 –1 MHz
GPO_1, GPO_2, GPO_3, GPO_4
Output specification
Open Collector output of an NPN Darlington transistor.
Max. power dissipation: 125 mW each output.
“High” state: External pull-up needed to a positive power source of
≤ 24 VDC. Examples: 2.2 kΩat +5 VDC,
4.7 kΩat +12 VDC,
12 kΩat +24 VDC.
“Low“ state: Output switched to GND.
Max. collector current: 100 mA DC, fused (auto-recovery)
Collector-emitter saturation voltage:
@ 20 mA: Typ. 0.72 V (0.85 V)
@ 100 mA: Typ. 0.90 V (1.10 V)
Frequency: 0 –1 kHz.
Others
Operating voltage
12 –30 VDC
Power consumption
2.1 W at maximum
Weight
≈ 0.4 kg
Dimensions
Standard circuit board (W x D): 100 x 160 mm/3.94 x 6.30 inch
Rear panel: RUB1: 103 x 44 mm / 4.06 x 1.73 inch
RUB3: 8HP, 3RU
Environmental charac-
teristics, operating
Temperature: +5 °C to +40 °C
Relative humidity: 30 % to 85 %, non-condensing
Environmental charac-
teristics, non-operating
Temperature: –10 °C to +60 °C
Relative humidity: 5 % to 95 %, non-condensing

Functional Description and Specifications RUB SW Page 11
1.4 Typical Application Diagrams
Redundant Word Clock System
SW
DARS OUT CLOCK OUT
GPIO / REF REF
CLOCK OUT SYNC
1 2
3 4
DARS OUT CLOCK OUT
GPIO / REF REF
CLOCK OUT SYNC
1 2
3 4
Primary
Word Clock Generator
GW
Back-Up
Word Clock Generator
GW
DARS IN 2
DARS OUT
REF/GPO
CLOCK IN 2
CLOCK IN 1 DARS IN 1
CLOCK OUT
1 2
3 4
4 x Word Clock 4 x Word Clock
4 x Master
Word Clock
Output Signals
Black-Burst
Sync Signal
75 Ohm
Termination
Time & Date Reference

Page 12 Functional Description and Specifications RUB SW
1.5 Software Update
Software updates require a (windows operating system) computer and the “RUBIDIUM
CONFIGURATION“ program. You can download the latest version of the program from:
https://www.plurainc.com.
Please check the PC connector at your RUBIDIUM housing: There is an USB or RS232 (with a
DSUB9 connector) interface installed. You now need the same interface at your computer.
The new firmware should already be stored as a .tcf file at your computer.
Please now execute the following steps:
1. Connect your computer to the PC connector of that RUBIDIUM frame where the module
has been plugged.
In case of an RS232 interface: Use a straight (1:1) connection between the PC connector
at the RUBIDIUM frame and the RS232 of the computer.
In case of an USB interface: Use a USB A-B cable between your computer and the
RUBIDIUM frame.
Switch on the power of all units.
2. Execute “Rubidium Config.exe” on your computer. Select the “Port” according to the
interface (USB, RS232) you are using.
3. Select the module (unit 1, 2, 3 ...).
4. Select “Flash Update“ in the File menu.
5. Open the .tcf-file. Standard name: “Rubidium SW version.tcf“.
“version” stands for a revision no., e.g. 2.13.8.
Click the OK button, update starts. Click the OK button at the end.
6. Update is finished now. We recommend checking module’s configuration utilizing the
“RUBIDIUM CONFIGURATION“ program.
During the flash update the operation of the module stops!
The changeover relay remains in its last position, so the signal flow of the connected signals
will not be affected.

Functional Description and Specifications RUB SW Page 13
1.6 Electronic Part Exchange
The hardware of the module comprises three printed circuit boards: The main electronic board
at the bottom layer, the keyboard which is fixed to the main electronic board by soldered pins,
and the rear panel board which is attached to the main electronic board by screws.
The rear panel board with its connectors and the latching relays consists of “mechanical”
parts, so there is a good chance that a damage of the module concerns the electronic part
only. The following exchange procedure removes the main electronic board and the keyboard
without interrupting the signal output. No cable should be disconnected.
Main
Electronic
Board
Keyboard
Rear
1. Arrangement:
Contact your local dealer or Plura to order the main electronic board and the keyboard for
a replacement. It is essential that you have as much information ready as possible: Serial
number of the module, software version number, set-up and configuration. This will help to
ensure that you are getting a direct replacement, even regarding the set-up values –which
are stored in a non-volatile memory located at the main electronic board.
2. Preparation:
Have a screwdriver for recessed-head screws ready.
3. Removal:
Do not switch off the power. Do not disconnect cables. Follow the procedure described in
the chapter ‘Remove a Module’of the ‘Installation & Systems Manual RUBIDIUM SERIES’to
pull the module out of the slot. Observe precautions for handling electrostatic-sensitive
devices.
4. Dismantle:
Unscrew only the three screws as shown in the figure above: One screw at the rear plate
and two screws at the rear panel board. Release the levers of both the IDC connectors and
pull out the 20-way ribbon cables. Now the main electronic board and the keyboard can
completely be removed.
5. Reassemble:
In principle follow the procedure in the reverse order.

Page 14 Functional Description and Specifications RUB SW
2 Operating Description
2.1 Functional Overview
2.1.1 Basic Functions
•Measurement of frequency and level of all incoming word clock signals.
•Monitoring and failure analysis, changeover in an event of a failure.
•Measurement and monitoring of a drift between word clock signals and compared to a
PPS of a real-time reference.
1
2
3
4
Monitoring
Monitoring
Monitoring
Monitoring Change-Over
Monitoring
Monitoring
Monitoring
Monitoring
1
2
3
4
OUTPUT Word Clock
1
2
3
4
INPUT
Reference
INPUT 1
Word Clock
INPUT 2
Word Clock
Additional system status information is available:
•Monitor for manual and automatic changeover events, relay supervisor.
•Error counters and error indications in case frequency or level problems, different
frequencies between input 1 and 2.
•Error counters and error indications in case of an inadmissible drift between word
clock signals or compared to a PPS of a real-time reference.
•And more …
PC programs are available for free: Configuration of the module = RubidiumConfig.exe,
status monitor = RubStatSE.exe.
The RUBIDIUM SERIES HTTP server, located in the Ethernet module (RUB IE or RUB PM)
enables the configuration of the module and offers a status monitor as well.

Functional Description and Specifications RUB SW Page 15
2.1.2 Overview of Error Indications and Alarms in General
This module detects errors on the word clock signals, on signals of the real-time reference, or
on the module itself after a self-test.
Basically, each individual error will be represented by a status, an error counter, and an
indication of a failure. The indication of a failure can be disabled. If not disabled, special
alarms can be raised in case of an error. This gives the user the possibility to select individual
errors for an alarm indication.
Furthermore, two overall counters are giving a quick overview:
•The “overall errors” counter shows the sum of all individual errors. A count value of > 0
indicates that at least one error has been detected.
•The “overall failures” counter shows the sum of all individual failures, i.e. all those errors
with the failure indication not disabled. A count value of > 0 indicates that at least one
failure has been detected.
You can see all the individual errors and both overall counters at the status monitor. Please
open the status monitor to investigate the source of an error.
→Chapter ‘Overview of Error Indications at the Status Monitor’.
→Chapter ‘Status Monitor’.
RUB1 modules, i.e. modules plugged to a 1 RU chassis, indicate errors by the ERROR LED and
failures by the FAIL lamp (in the default configuration):
•The LED in the “Switcher Error“ function lights up as long as the “overall errors” counter
has a count value > 0.
•The lamp/key in the “Fail“ function lights up as long as the “overall failures” counter has
a count value > 0.
RUBI DI UM SERIES 1
OPER
ERROR
SET
SIGNAL
SW
SIG1 SIG2FAIL
PRIM
ARY
GPO outputs can indicate failures and warnings:
→Chapter ‘Alarms by GPO Outputs’.
SNMP Traps can indicate failures and warnings.
→Chapter ‘Alarms by SNMP Traps’.
Entries in the log file of an Ethernet module can indicate failures and warnings.
→Chapter ‘Entries in the Log File of an Ethernet Module’.

Page 16 Functional Description and Specifications RUB SW
2.1.3 Overview of Error Indications at the Status Monitor
The System page of the status monitor shows the “overall failures” counter, the “overall
errors” counter, and the individual errors of the system:
The Input 1 page shows the individual errors with respect to the signals at CLOCK IN 1.
The Input 2 page shows the individual errors with respect to the signals at CLOCK IN 2.
The Reference page shows the individual errors with respect to the real-time reference.
Please refer to the following chapters for a detailed description of the individual errors:
→Chapter ‘Word Clock Monitoring’.
→Chapter ‘Real-Time Reference Monitoring’.
→Chapter ‘Self-Test’.
Basically, the following happens in case of an error:
status
Indicates the error status at this very moment: Error yes (1) or no (0).
The status resets to 0 if this individual error has disappeared.
counts
Counter counts up with every new error. Some counters count up to a
maximum of 65,535, others to 255. A count value > 0 indicates that there has
been an error even if the status currently indicates no error.
Simultaneously, the “overall errors” counter counts up.
fail
Indicates the individual failure status at this very moment: Failure yes (1) or no
(0). The failure indication can be disabled. The failure indication corresponds
to the error status if ‘fail’ has been enabled. A failure can raise special alarms.
Simultaneously, the “overall failures” counter counts up.
disabled
The failure indication of this individual error can be disabled. If disabled, no
failure will be indicated, and no special alarm will be given in case of an error.

Functional Description and Specifications RUB SW Page 17
2.1.4 Error Reset
The following error indications are self resettable (reset, if no errors are present):
•The individual status bits at the status monitor.
•The GPO outputs of functions Signal 1 Failure,
Signal 2 Failure,
Word Clock Warning.
A reset of the System Warning error is done by one of the keys described below.
The following error indications remain as long as the overall counters have count values > 0:
„overall errors“ > 0
„overall failures“ > 0
•LED (ERROR) in the Switcher Error function.
•GPO in the System Error function.
•SNMP trap System Error.
•Lamp (FAIL) in the Fail function.
•GPO in the System Failure function.
•SNMP trap System Failure.
A reset of these counters and –at the same time –a reset of all individual error counters can
be done by:
Keystroke
RUB1 modules, i.e. modules plugged to a 1 RU chassis, offer four programmable keys.
The following functions are provided for a reset:
Function
Description
Recommended
Key
Clear
Resets all error counters to zero.
F1: FAIL
Reset All
Complete reset of error counters and status.
F1: FAIL
It is recommended to assign the „Reset All“ function to the FAIL key.
Configuration
Utilizing one of the configuration tools, a complete reset of error counters and status can
be done clicking the “Error Reset“ button at the Switcher page.

Page 18 Functional Description and Specifications RUB SW
2.2 Word Clock Monitoring
2.2.1 Overview
SW monitors 2 x 4 word clock signals. After the power has turned on, the monitoring starts if
once a valid signal has been received.
At each of the 2 x 4 word clock signals, the following measurements will be taken:
•Signal level
•Signal frequency
•Drift compared to the PPS of a reference
Furthermore, the signals within a signal pair will be checked. There are four signal pairs:
IN1:
IN2:
CLOCKIN1_1
CLOCKIN2_1
CLOCKIN1_2
CLOCKIN2_2
CLOCKIN1_3
CLOCKIN2_3
CLOCKIN1_4
CLOCKIN2_4
The signals within a signal pair will be checked against:
•Equal frequency
•Signal to signal drift
Apart from measurement results, each individual check outputs a status, an error counter, and
a fail indication. The fail indication can be disabled. Please refer to the next chapters for
details.

Functional Description and Specifications RUB SW Page 19
2.2.2 Measurement of Signal Level
The level is important for the “signal loss” detector. Only the peak-to-peak value should be
regarded, any DC offset will not be considered. SW sets the signal threshold to 62 % of the
level, approximately.
Signals within a pair should have the same level. Utilising one of the configuration tools, the
level of each signal pair can be selected. If “Auto” is selected, the threshold depends on the
measured level.
Instead of “Auto”, a level can be selected in the range of 1.0 V to 6.0 V, with steps of 0.5 V.
The threshold will be calculated from the selected level.
Example: Level = 5.0 V →threshold = 3.1 V.
In both cases, the measured level will be presented at the status monitor.
SW measures the level non-recurring; the measurement only takes place after the following
events:
•First detection of a signal.
•“Error Reset“ via front key at the module or via button at the configuration tool.
•Any change of level set-up at the configuration.
It is recommended to manually set the level, if the expected level is known and if SW operates
in a redundant word clock system.
Error Signal Loss
If the signal level falls below the threshold, a “signal loss” error will be indicated.
This error will be classified as a major error, so this error will be considered for a
changeover.
The status monitor indicates these measurements and errors at Input 1 page or Input 2 page
resp.
2.2.3 Measurement of Signal Frequency
SW permanently measures the frequency of all word clock signals. Signals within a pair
should have the same frequency. Utilising one of the configuration tools, the frequency of
each signal pair can be selected. If this is done, SW checks each signal of differences between
measured and selected frequency. If “Auto” has been selected instead, each signal will be
check for a valid word clock frequency only.
A valid word clock frequency should be a multiple of one of the basic sample frequencies:
32 kHz, 44.1 kHz or 48 kHz. The factor can be out of 1, 2, 4, 8, 16, 32, 64, 128 or 256.
Example: 96 kHz will be measured or selected as 48 kHz x 2.
The measurement is able to distinguish between all the Pull-Up and Pull-Down frequencies:
NTSC Pull-Down (NTSC_PD) = x 1/1,001,
PAL Pull-Down (PAL_PD) = x 24/25,
NTSC Pull-Up (NTSC_PU) = x 1,001,
PAL Pull-Up (PAL_PU) = x 25/24.

Page 20 Functional Description and Specifications RUB SW
As a result of the frequency measurement, the status monitor thus shows one of the following
frequencies [Hz]:
Basic frequency →
Pull-UP/Pull-Down ↓
32 kHz
44,1 kHz
48 kHz
NTSC_PD + PAL_PD
x 1/1.001 x 24/25
30 689
42 294
46 034
PAL_PD
x 24/25
30 720
42 336
46 080
NTSC_PU + PAL_PD
x 1.001 x 24/25
30 751
42 378
46 126
NTSC_PD
x 1/1.001
31 968
44 056
47 952
x 1
32 000
44 100
48 000
NTSC_PU
x 1.001
32 032
44 144
48 048
NTSC_PD + PAL_PU
x 1/1.001 x 25/24
33 300
45 892
49 950
PAL_PU
x 25/24
33 333
45 938
50 000
NTSC_PU + PAL_PU
x 1.001 x 25/24
33 367
45 983
50 050
Error Frequency
A “frequency” error will be indicated, if a frequency has been selected (not “Auto”) and
there is a difference of measured and selected frequency, or if “Auto” has been selected
and the measured frequency does not comply with a valid word clock frequency. This
check will be done permanently. Any Pull-Up or Pull-Down frequency will be converted
to the basic frequency; the check thus compares the basic frequency and factor only. The
cause of this error may be a faulty configuration of the signal source.
This error will be classified as a major error, so this error will be considered for a
changeover.
The status monitor indicates these measurements and errors at Input 1 page or Input 2
page resp.
Error Word Clock Frequency Difference
Signals within a pair should have the same frequency. In this case, even the Pull-Up and
Pull-Down frequencies are considered. SW permanently checks the signals for
differences. In case of differences, a “word clock frequency difference” error will be
indicated. The cause of this error may be a faulty configuration or synchronization of the
signal source.
This error can be assigned to a signal pair only, so this error will not be considered for a
changeover.
The status monitor indicates this error at the System page.