Belden Miranda DENSITE Series Instruction Manual

DENSITÉ series
SCO-1421
Intelligent ASI Change-Over
with Probing
Guide to Installation and Operation
M937-9900-103
4 October 2013
Miranda Technologies
3499 Douglas-B.-Floreani
St-Laurent, Québec, Canada H4S 2C6
Tel. [phone]
Fax. [phone]
www.miranda.com
© 2013 Miranda Technologies

GUIDE TO INSTALLATION AND OPERATION
SCO-1421
Electromagnetic Compatibility
This equipment has been tested for verification of compliance with FCC Part 15, Subpart B requirements for
Class A digital devices.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.
This equipment has been tested and found to comply with the requirements of the EMC directive
2004/108/CE:
•EN 55022 Class A radiated and conducted emissions
•EN 61000-3-2 Harmonic current injection
•EN 61000-3-3 Limitation of voltage changes, voltage fluctuations and flicker
•EN 61000-4-2 Electrostatic discharge immunity
•EN 61000-4-3 Radiated electromagnetic field immunity – radio frequencies
•EN 61000-4-4 Electrical fast transient immunity
•EN 61000-4-5 Surge immunity
•EN 61000-4-6 Conducted emissions immunity
•EN 61000-4-11 Voltage dips, short interruptions and voltage variations immunity
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GUIDE TO INSTALLATION AND OPERATION
SCO-1421
Table of Contents
1SCO-1421 Intelligent ASI Change-Over with Probing............................................................1
1.1 Introduction ......................................................................................................................................... 1
1.2 Features.............................................................................................................................................. 1
1.3 Block Diagram..................................................................................................................................... 2
1.4 Front Card-edge Interface................................................................................................................... 2
2Installation................................................................................................................................3
2.1 Unpacking........................................................................................................................................... 3
2.2 Installation in the Densité frame.......................................................................................................... 3
2.3 Rear Panel Connectors....................................................................................................................... 3
3Operation..................................................................................................................................5
3.1 Getting Started.................................................................................................................................... 5
3.2 Control options.................................................................................................................................... 5
3.3 Card-Edge Status LED ....................................................................................................................... 5
3.4 Local control using the Densité frame control panel........................................................................... 6
3.4.1 Overview................................................................................................................................ 6
3.4.2 Menu for local control............................................................................................................. 7
3.5 Remote control using iControl............................................................................................................. 8
3.5.1 The iControl graphic interface window................................................................................... 8
3.5.2 The Switch panel ................................................................................................................. 10
3.5.3 The Preview Output panel ................................................................................................... 11
3.5.4 The Alarms panel................................................................................................................. 12
3.5.5 The Probing panel................................................................................................................ 26
3.5.6 The Options panel................................................................................................................ 28
3.5.7 The Factory / Presets panel................................................................................................. 29
3.5.8 The Alarm Config panel....................................................................................................... 31
3.5.9 The Info panel...................................................................................................................... 34
4Specifications.........................................................................................................................36
ANNEX – SCO-1421 User Interface.............................................................................................37

GUIDE TO INSTALLATION AND OPERATION
SCO-1421

GUIDE TO INSTALLATION AND OPERATION
SCO-1421 | 1
1 SCO-1421 Intelligent ASI Change-Over with Probing
1.1 Introduction
The SCO-1421 is a 2x1 intelligent ASI change-over with built-in MPEG-TS probing. Changeovers are performed
electronically by the SCO-1421’s internal router. In the event of a power failure, the signal is protected by relays fitted
on the rear module, maintaining the integrity of the selected signal at the output.
Input selection can be performed automatically or manually. In automatic mode, the card will perform smart input
selection based on rules related to signal quality. In manual input selection mode, channel selection can be made
from the Densité controller, the iControl software, or simply by using a GPI. A GPI can be connected to an automation
system or any simple GPI control panel. The GPI outputs give status of the selected source, allowing tallies to be
triggered.
The card comes with sync-loss-free switching that prevents sync loss or sync drop errors upon switching.
MPEG-TS signal probing monitors PID presence of up to 12 services per input simultaneously.In the event of a loss
of data on any service PID, the SCO can be configured to automatically switch to the other input provided it is error-
free.
The optional advanced probing option enables full level 1 & 2 TR 101 290 probing and alarming. Combined with the
optional advanced probing, the SCO-1421 is not only the perfect ASI change-over but also a handy TS probe.
1.2 Features
•Two DVB-ASI source inputs and two DVB-ASI outputs (program and preview)
•Electronic switching with relay back up (on rear module) maintains selected input in the event of a power failure
•Automatic switch mode ruled by internal TS probes
•Manual changeover by local frame controller, iControl, iControl Solo or GPI
•GPI in for control & out for status monitoring (IN1, IN2, AUTO, BYPASS)
•Switching without TS sync loss errors
•Alarm reporting to iControl monitoring and control system
MPEG-TS signal Analysis
•Probing of up to 12 services
•SI Table structure display
•PID presence alarming
•Total bit rate monitoring & alarming
•Service PID bit rates measurements
•Basic TR 101 290 probing and alarming:
ots_sync_loss
ocountinuity_count_error
osync_byte_error
otransport_error
Optional advanced probing
•PSIP Table PID presence alarming
•Individual PID bit rate monitoring and alarming
•Teletext/subtitling PID presence alarming
•Probing for complete TR 101 290 L1 & L2 probing:
oCAT_Error
oCRC_Error
oPAT_Error
oPMT_Error
oPCR_Accuracy
oPCR_Error
oPTS_Error
o
PID_Error

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2| SCO-1421
1.3 Block Diagram
The following block diagram shows the functionality of the SCO-1421.
Figure.1.1 Functional block diagram SCO-1421
1.4 Front Card-edge Interface
The front card-edge of the SCO-1421 incorporates two
elements:
•Status LED (see section 3.3)
•Select Button (see section 3.4)
Select
Status
SCO-1421
Status LED
Select Button
Figure
1.2 Front Card-edge Layout

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SCO-1421 | 3
2 Installation
2.1 Unpacking
Make sure the following items have been shipped with your SCO-1421. If any of the following items are missing,
contact your distributor or Miranda Technologies Inc.
•SCO-1421 Intelligent ASI Change Over with Probing
•SCO-1421-DRP-R Rear Panel (see figure 2.1)
2.2 Installation in the Densité frame
The SCO-1421 and its associated rear connector panel must be mounted in a DENSITÉ frame. It is not necessary to
switch off the frame’s power when installing or removing the card. See the DENSITÉ Frame manual for detailed
instructions for installing cards and their associated rear panels.
2.3 Rear Panel Connectors
The SCO-1421 has multiple inputs and outputs, and making space for all the necessary connectors at the rear of the
frame requires a double-width rear panel.
With the double-width rear panel installed, the SCO-1421 must be installed in the right-most of the two slots covered
by the panel in order to mate with the panel’s connectors.
If it is placed in the wrong slot, the front panel LED will flash red. Move the card to other slot for correct operation. No
damage will result to the card should this occur.
The rear panel connections are as follows:
ASI IN 1 and ASI IN 2– serial digital ASI input
Connect two DVB-ASl video signals, conforming to EN 50083-9, to the BNCs labeled ASI IN 1 and 2.
ASI OUT – serial digital video outputs
The SCO-1421 provides two ASI video outputs on BNC connectors, labeled PGM (program) and PVW (preview). The
ASI video signals conform to EN 50083-9.
GPI IN and GPI OUT connectors
The rear panel of the SCO-1421 includes a GPI interface that allows control of the switch process.
Figure 2.1SCO-1421-DRP-R Rear Panel

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4| SCO-1421
When constructing and using an external GPI box, be aware of the following:
1. The SCO-1421 card monitors the external power supply voltage on the GPI input. If the voltage is less than 4V
(per relay datasheet), an alarm will be raised.
2. When a GPI INPUT is triggered while the card is operating in auto mode, the card changes to manual mode and
switches to the input selected by the GPI.
3. DO NOT TRIGGER BOTH GPI INPUTS AT THE SAME TIME OR ALLOW THE TRIGGER PULSES TO
OVERLAP, AS DAMAGE TO THE RELAY MAY RESULT.
4. A GPI trigger pulse should have a duration of at least 40 ms.
Figure 2.2 GPI trigger pulse timing
Using the GPI interface
•Trigger the GPI-IN-1 or GPI-IN-2 pin to select that input.
•Trigger the AUTO-IN or BYPASS-IN pin to select that mode
•Read the GPI-OUT-1 and GPI-OUT-2 pins to identify which
output is selected
•Read the AUTO-OUT and BYPASS-OUT pins to determine
whether either of these modes is in operation.
The four GPI connectors are laid out as shown:
Figure 2.3 GPI Connectors
WECO
connector Pin number GPI direction GPI name
P1
1
IN
GPI-IN-1
2
GND
3
IN
GPI-IN-2
P3
1
IN
AUTO-IN
2
External +5V
3
IN
BYPASS-IN
P4
1
OUT
GPI-OUT-1
2
GND
3
OUT
GPI-OUT-2
P5
1
OUT
AUTO-OUT
2
GND
3
OUT
BYPASS-OUT
GPI IN 1
Min pulse width=40 ms
GPI IN 2
Min pulse width=40 ms

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SCO-1421 | 5
3 Operation
3.1 Getting Started
- The switch mode is set to AUTO by default which means the card will automatically switch to the input with
the less errors based on the error configuration that has to be done in the ALARM tab. Don’t forget to change
this setting if you don’t want the card to switch by itself.
- When in AUTO mode, the switch conditions must be set by the user as desired as most of them are set to
OFF by default. The LEVEL parameter of the measures that should cause a switch when error occurs must
be set to 1 or 2 according to the priority (1 being the most critical) or the card will never switch by itself.
- If the preview output of the card is connected, do not forget to set it’s behavior as desired on the preview
output tab.
- As it is NOT possible to probe every program present in the stream, many of the TR 101 290 measures are
only done on the programs selected for probing. It is very important to select the programs that you wish to
probe (up to 12) under the “Service Presence X” item in the ALARM – TS tab. Without doing so, many
measures indicators will always be green and won’t work as expected. The Pie Chart and PID Presence
display reporting depend also on this Service Presence setting.
- Once configured and fed with a valid signal, it is a good idea to reset the error count under the PROBING -
TR101290 tab if you want to clear the errors that might have occurred during configuration.
3.2 Control options
The SCO-1421 can be controlled in two different ways:
•The local control panel and its push-buttons can be used to move through a menu of parameters and to adjust
parameter values (see section 3.4).
•Miranda’s iControl system can be used to access the card’s operating parameters from a remote computer, using
a convenient graphical user interface (GUI). (see section 3.5)
3.3 Card-Edge Status LED
The status monitor LED is located on the front card-edge of the SCO-1421, and is visible through the front access
door of the DENSITÉ frame. This multi-color LED indicates the status of the SCO-1421 by color, and by
flashing/steady illumination.
The chart shows how the various error conditions that can be flagged on the SCO-1421 affect the LED status.
•If a cell is gray, the error condition cannot cause the LED to assume that status
•If more than one LED status is possible for a particular error condition, the status is configurable.
See Section 3.5.8 for details.
•The factory default status is shown by a 
The LED will always show the most severe detected error status that it is configured to display, and in the chart error
severity increases from left to right, with green representing no error/disabled, and flashing red the most severe error.

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6| SCO-1421
LED Status
Error Condition
Green
Yellow
Red
Flashing
Red
No errors 
TS Presence Input 1 
TS Presence Input 2 
Transport ID Mismatch Input 1

Transport ID Mismatch Input 2 
Total Bit Rate Input 1 
Total Bit Rate Input 2 
Bypass Enabled 
Backup Used 
Global Level 1 for Input 1 
Global Level 2 for Input 1 
Global Level 1 for Input 2 
Global Level 2 for Input 2 
Limitation Alarm 
GPI Power Alarm 
Hardware Failure

Rear Presence

If the LED is Flashing Yellow, it means that the card is selected for local control using the Densité frame’s control
panel. See Section 3.4 for details.
3.4 Local control using the Densité frame control panel
3.4.1 Overview
Push the SELECT button on the SCO-1421 card edge (see Section 1.4) to assign the local control panel to operate
the SCO-1421. Use the control panel buttons to navigate through the menu, as described below.
All of the cards installed in a Densité frame are connected to the frame’s controller card, which handles all interaction
between the cards and the outside world. There are no operating controls located on the cards themselves. The
controller supports remote operation via its Ethernet ports, and local operation using its integrated control panel.
The local control panel is fastened to the front of the
CPU-ETH2 controller card, and when installed can be
accessed by opening the front door of the frame. The
panel consists of a display unit capable of displaying
two lines of text, each 16 characters in length, and five
pushbuttons.
The panel is assigned to operate any card in the frame
by pushing the SELECT button on the front edge of that
card.
•Pushing the CONTROLLER button on the control
panel selects the Controller card itself.
•The STATUS LED on the selected card flashes
yellow
Figure
3.1 Densité Frame local control panel

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SCO-1421 | 7
The local control panel displays a menu that can be navigated using the four pushbuttons located beside the display.
The functionality of the pushbuttons is as follows:
[+] [–] Used for menu navigation and value modification
[SELECT] Gives access to the next menu level. When a parameter value is shown, pushing this button once
enables modification of the value using the [+] and [–] buttons; a second push confirms the new value
[ESC] Cancels the effect of parameter value changes that have not been confirmed; pushing [ESC] causes the
parameter to revert to its former value.
Pushing [ESC] moves the user back up to the previous menu level. At the main menu, [ESC] does not
exit the menu system. To exit, re-push the [SELECT] button for the card being controlled.
If no controls are operated for 30 seconds, the controller reverts to its normal standby status, and the selected card’s
STATUS LED reverts to its normal operating mode.
3.4.2 Menu for local control
The SCO-1421 has operating parameters which may be adjusted locally at the controller card interface.
•Press the SELECT button on the SCO-1421 front card edge to assign the Densité frame’s local control panel
to the SCO-1421
•Use the keys on the local control panel to step through the displayed menu to configure and adjust the SCO-
1421.
The complete menu structure is shown in the Annex to this document, beginning on page 37.

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8| SCO-1421
3.5 Remote control using iControl
The operation of the SCO-1421 may be controlled using Miranda’s iControl system.
•This manual describes the control panels associated with the SCO-1421 and their use.
•Please consult the iControl User’s Guide for information about setting up and operating iControl.
In iControl Navigator or iControl Websites, double-click on the SCO-1421 icon to open the control panel.
3.5.1 The iControl graphic interface window
The basic window structure for the SCO-1421 is shown in figure 3.2. The window identification line gives the card type
(SCO-1421) and the slot number where the card installed in its Densité frame.
There are three main sections in the window itself, identified in figure 3.2:
1. The Status Icon area shows a series of nine icons that
report the status of some card parameters. Figure 3.3
shows the various forms that may appear; their
meaning is described below.
Icon 1 – Control status
•A: Green - Remote Control via iControl
•B: Yellow - Local control using the menu
Icon 2 – ASI 1 Presence
•A: Green – ASI IN locked
•B: Red – No ASI IN detected
Figure
3.2 SCO-1421 iControl graphic interface window
A
B
C
1 2 3 4 5 6 7 8 9
Figure
3.3 Status icons
1
2
3

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SCO-1421 | 9
Icon 3 – ASI 2 presence
•A: Green – ASI IN locked
•B: Red – No ASI IN detected
Icon 4 – Bypass Mode Status
•A: Bypass not active – SCO-1421 in operation
•B: Bypass activated
Icon 5 – Global Alarm for Input 1 status
•A: Green – no alarm
•B: Yellow – Level 2 alarm
•C: Red – Level 1 alarm
Icon 6 – Global Alarm for Input 1 status
•A: Green – no alarm
•B: Yellow – Level 2 alarm
•C: Red – Level 1 alarm
Icon 7 – Backup status
•A: Green – Other input is backup in AUTO mode
•B: Red – Current input is backup in AUTO mode
Icon 8 – Probing Resources
•A: Green – Probing resources available
•B: Red – Probing limits reached - The number of PIDs in the stream exceeds 127
- The number of different programs in the stream exceeds 32
- The number of PIDs in a single program exceeds 15
- The number of different tables to collect in the stream exceeds 34
Icon 9 – Card Heath status
•A: Green – Hardware OK
•B: Red – Major hardware failure requiring factory repair
When an icon shows an error state, a message describing the error in more detail will appear beneath the icons.
If there is more than one error, they will cycle through the display.
•If there are multiple errors, the error messages cycle so all can be seen
•The icon whose status or error message is shown is highlighted with a mauve background
In all cases, mousing over an icon will cause a more detailed description of its current status to appear in the
message area. Error message cycling will resume when the cursor is no longer over an icon.
2. The left-hand side of the panel contains a series of buttons that control the contents of the main window (section
3). Click on one to access the indicated controls. The selected button is highlighted (darker) and the main panel
heading matches the button name.
3. This section contains the main operating controls and displays for managing the SCO-1421’s feature set. The
contents are selected by clicking a button on the left-hand side of the screen.
The left side of the window, containing section 2, can be hidden or revealed by clicking the arrow icon at the center of
the left side border. Each of the panels associated with the groups accessed from the buttons in Section 2, and shown
in Section 3, is described individually in the following sections.

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10 | SCO-1421
3.5.2 The Switch panel
The graphic at the top of the panel identifies the input that is
currently selected, and indicates the validity of both inputs by
the color of their icons.
The status of the four GPI inputs is shown below the graphic.
These inputs select the operating mode when activated. The
status of GPI power from the external GPI box is also shown.
If this icon is not green, the GPI Power Box alarm will be
raised. See section 2.3 for information about GPI usage in
the SCO-1421.
The SCO-1421 has three mo des of switch operation,
selected by clicking the appropriate button in the Switch
Operating Mode section of the control panel.
•You will be asked to confirm that you want to change
the switch operating mode when you click a button
1. Manual Switch
Manually switches the SCO-1421 program output
between the two possible sources: input 1 and input 2.
•Click the Manual button. The two sources are shown
on the left. Look at the graphic at the top of the panel
to see which one is currently selected.
•Click on the other source, which will then show in green. The Take button is now activated, appearing red
(see figure 3.5).
•A countdown (from 10 seconds) underneath the Take button
shows how long the Take button will remain active before it
times out.
•Click the Take button while it is active to switch the SCO-1421
output over to the other source.
2. Auto Switch
The SCO-1421 uses its probing feature to determine a global alarm level for each of the two inputs (see section
3.5.4 for more information). Auto Switch uses this information to determine whether a changeover is required.
•Generally speaking, the SCO-1421 will switch to the input with the lowest global alarm level, even if it is
not error-free
•The specific switching pattern is determined by
the Auto Switch Configuration that has been
selected
Click the Auto button in the Switch Operating Mode area
to activate the Auto mode.
•When Auto mode is turned on, Input 1 is always
selected as the source, so be aware that if you have
selected input 2 manually and then switch ON the
Auto mode, the selection will switch to Input 1.
Figure
3.5 Manual Switch Controls
Figure
3.6 Auto Switch Mode
Figure
3.4 The Switch panel

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In the Auto Switch Config area, select the Auto Switch mode of operation:
•Switch To: switches to input 2 when the alarm conditions trigger a switch. NOTE that a return to input 1 can
only be made in the Manual mode.
•Switch and Return: switches to input 2 when the alarm conditions trigger a switch, and then switches back
after a predetermined interval, counted from the time the input 1 global alarm becomes and remains equal to
or lower than the input 2 global alarm. Use the Switch Return Duration slider at the bottom of the tab to set
the interval (0 to 59 seconds, 1 to 10 minutes)
•Toggle:switches to the input that has the lowest global alarm level, with no delay. In this mode, neither input
is favored, although it will start on input 1 when Auto mode is selected.
3. Bypass
Bypass triggers relays located on the rear panel to connect the inputs directly to the outputs. The bypassed SCO-
1421 card is electrically disconnected from the Densité signal system, and can be removed from the frame with no
discontinuity in the signal path.
When the SCO-1421 is in Bypass:
•There is no ASI probing
•The PVW (preview) output is disabled
NOTE: Miranda recommends that you set the SCO-1421 in BYPASS before removing it from the Densité frame to
ensure no disruption in the signal when the card is removed and reinserted.
3.5.3 The Preview Output panel
Use this panel to select the source for the preview output
•Auto Opposite input from that
selected for the Program
output
•Input 1 Input 1
•Input 2 Input 2
•Follow Program Output: Same input as selected for the
Program output
Figure
3.7 Preview output source selection

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12 | SCO-1421
3.5.4 The Alarms panel
The SCO-1401 continuously monitors the condition and status of the input signals it is processing. The information is
used to decide whether the input must be switched in Auto mode. It is also used to flag the status of the card in the
iControl system.
In general:
•A number of parameter values are continuously tested against user-defined thresholds or for
presence/absence.
•Each parameter test is assigned a Level, to determine the extent to which it contributes to the changeover
decision.
Many alarms can be enabled or disabled using the Enable
checkbox in their control panel (see below).
An alarm that is enabled:
•contributes to the switch decision process based on
its LEVEL.
•Is reflected in the device status as reported to
iControl (LEVEL has no bearing on this)
Each alarm is assigned a LEVEL that determines its
contribution to the switch decision process. Possible levels
are:
•1 – highest significance
•2 – lower significance
•OFF – not used in the switch decision process
Some alarms are arbitrarily assigned as Level 1 and cannot
be changed by the user (e.g. no signal present is always a
Level 1 alarm). Their Enable checkbox is ticked, and greyed-
out.
Other alarms have a pulldown in their control panel that
allows the user to set the level.
The SCO-1421 uses the most significant alarm detected for
an input as the global alarm level for that input, and then uses the
truth table on the right to decide whether to switch from input 1 to
input 2 and back. The switch pattern is determined by the Auto
Switch mode that is selected; see section 3.5.2.
The Alarms section of the iControl panel gives access to all alarm-
related settings.
•The TS, Bit Rate and TR 101 290 tabs at the top of the
panel give access to lists of the alarms that exist in that
category
•All available alarms in the selected category are shown
under Alarm Name, and the configuration and status of
each alarm for Inputs 1 and 2 is shown to the right.
•Click on an alarm in the Alarm Name column to select it,
and the configuration panel for that alarm appears at the
bottom of the screen.
INPUT 1 INPUT 2 OUTPUT:
SELECT
INPUT #
Alarm level Alarm level
1 2 1 2
○
○
x x 1
○
●
○
○
2
○
●
○
●
1 or last
○
●
●
x
1
●
x
○
○
2
●
x
○
●
2
●
x
●
x 1 or last
●= Alarm at this level
○= No Alarm at this level
x = Don't care
Figure
3.8 Alarms panel

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TS – TS signal presence
This error is always ENABLED and the level set to 1, 2 or OFF.
The factory default value is level 1.
Use the slider to set the duration for which the error must
continuously exist before the alarm is flagged. The nominal range
of durations is 1 to 30 seconds.
TS – TS ID Mismatch
The Transport Stream ID for each of the two inputs, as detected
by the on-board probing feature, is shown in the Current data box.
The user sets an expected or preferred Transport Stream ID for
each input in the Desired data box:
•The data may be entered by clicking and typing in the data
box
•The data in the Current data box may be copied over into
the Desired data box by clicking on the arrow button
between the two data boxes.
The SCO-1421 compares the Current and Desired TS IDs and
flags an error if they do not match.
This error can be Enabled using the checkbox, and the level set to
1, 2 or OFF.
Figure
3.9 TS Signal Presence alarm
Figure
3.10 TS_ID Mismatch alarm

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14 | SCO-1421
TS – PAT Presence
This error is generated if the PAT (Program Association Table) of
the input transport stream is continuously absent for a period
greater than the time set in the Duration data box.
•The duration value may be entered by clicking and typing in
the data box
•The duration data may be changed using the slider and
control buttons on either end of it
•Duration range is 1 to 60 seconds
This error is Enabled using the checkbox, and the level set to 1, 2
or OFF.
TS – Service N Presence (N = 1 to 12)
This error is generated if a PID (PMT, PCR, audio, video) in the
service in the input transport stream that has been selected for
probing is continuously absent for a period greater than the time
set in the Duration data box.
•The duration value may be entered by clicking and typing in
the data box
•The duration data may be changed using the slider and
control buttons on either end of it
•Duration range is 1 to 60 seconds
This error is Enabled using the checkbox, and the level set to 1, 2
or OFF.
.
Select the service to be probed using the Browse button at the
bottom of the panel. Clicking the button opens a list of all services
detected in the incoming data stream. Each can be assigned to
only one of the 12 available slots.
Figure
3.11 TS – PAT Presence alarm
Figure
3.12 TS – Service Presence alarm

GUIDE TO INSTALLATION AND OPERATION
SCO-1421 | 15
TS – SI Tables Presence
(Only available when the Advanced Probing option is enabled)
This error is generated if the Service Information tables in the
input transport stream service that has been selected for probing
are continuously absent for a period greater than the time set in
the Duration data box.
•The duration value may be entered by clicking and typing in
the data box
•The duration data may be changed using the slider and
control buttons on either end of it
•Duration range is 5 to 60 seconds
This error is Enabled using the checkbox, and the level set to 1, 2
or OFF.
Select the stream type using the pulldown at the bottom of the
panel. Options are:
•ISO13838 (use when no specific tables are present)
•ATSC (use when searching for VCT and MGT)
•DVB (use when searching for SDT, NIT and TDT)
Bit Rate – Total TS Bit Rate
This error is generated if the total bit rate of the input transport
stream is continuously outside a specified range of values for a
period greater than the time set in the Duration data box.
The Current value is detected by the on-board probing of the
SCO-1421 and displayed in the Current data box.
The Min and Max values are determined by the user, and entered
into the data boxes by clicking and typing.
The Duration is determined by the user:
•The duration value may be entered by clicking and typing in
the data box
•The duration data may be changed using the slider and
control buttons on either end of it
•Duration range is 0 to 60 seconds
This error is Enabled using the checkbox, and the level set to 1, 2
or OFF.
Figure
3.14 Total TS Bit Rate alarm
Figure
3.13 SI Tables Presence

GUIDE TO INSTALLATION AND OPERATION
16 | SCO-1421
Bit Rate – PID n Bit Rate
(Only available when the Advanced Probing option is enabled)
This error is generated if the bit rate for a specific PID in the input
transport stream is continuously outside a specified range of
values for a period greater than the duration set in the data box.
•Up to 4 PIDs can be probed on each input, labeled PID 1, 2,
3, and 4 in this panel. The user specifies the actual PID in
the data box at the bottom of the panel.
•Only the PIDs of the services selected for probing in the
Alarm-TS panel are available for PID-bitrate probing here;
other PIDs in the service cannot be seen.
•If the probing of a service is de-selected in the Alarm-TS
panel, but PIDs from that service are still selected here,
erroneous MIN Bitrate results will be displayed
The Current bitrate value is detected by the on-board probing of
the SCO-1421 and displayed in the Current data box.
The Min and Max bitrate values are determined by the user, and
entered into the data boxes by clicking and typing.
The Duration is determined by the user:
•The duration value may be entered by clicking and typing in
the data box
•The duration data may be changed using the slider and
control buttons on either end of it.
•Duration range is 0 to 60 seconds
Enable the error using the checkbox, and set the level to 1, 2 or
OFF.
Bit Rate – NULL PID Rate
This error is generated if the bit rate for the NULL PIDs (8191) in
the input transport stream is continuously outside a specified
range of values for a period greater than the duration set in the
data box.
The Current bitrate value is detected by the on-board probing of
the SCO-1421 and displayed in the Current data box.
The Min and Max bitrate values are determined by the user, and
entered into the data boxes by clicking and typing.
The Duration is determined by the user:
•The duration value may be entered by clicking and typing in
the data box
•The duration data may be changed using the slider and
control buttons on either end of it
•Duration range is 0 to 60 seconds
This error is Enabled using the checkbox, and the level set to 1, 2
or OFF.
Figure
3.15 PID n Bit Rate
Figure
3.16 NULL PID Rate