Belden, Belden Sending All The Right Signals, and the Belden logo are trademarks or
registered trademarks of Belden Inc. or its affiliated companies in the United States and
other jurisdictions. Miranda, Grass Valley, SSP-3801, Densité, GV STRATUS Playout are
trademarks or registered trademarks of Grass Valley. Belden Inc., Grass Valley, and other
parties may also have trademark rights in other terms used herein.
Terms and Conditions
Please read the following terms and conditions carefully. By using SSP-3801
documentation, you agree to the following terms and conditions.
Grass Valley hereby grants permission and license to owners of SSP-3801 and GV STRATUS
Playout to use their product manuals for their own internal business use. Manuals for Grass
Valley products may not be reproduced or transmitted in any form or by any means,
electronic or mechanical, including photocopying and recording, for any purpose unless
specifically authorized in writing by Grass Valley.
A Grass Valley manual may have been revised to reflect changes made to the product
during its manufacturing life. Thus, different versions of a manual may exist for any given
product. Care should be taken to ensure that one obtains the proper manual version for a
specific product serial number.
Information in this document is subject to change without notice and does not represent a
commitment on the part of Grass Valley.
Warranty information is available in the Support section of the Grass Valley Web site
(www.miranda.com).
This chapter presents an overview of the Solid State Playout 3801 card (SSP-3801),
including the web-based interface that allows you to configure the card, monitor the card,
and perform playout tests on the card.
The SSP-3801 is a playout server on a card that plays video and audio clips in a variety of
playout applications. In addition to playing out program content, the branding capabilities
can insert pre-rendered graphics thanks to its built-in clip player, graphics stores, and
external fill & key input.
The SSP-3801 package includes the following components and features:
• The HD/SD Solid State Playout card (SSP-3801) and SSP-3801 rear connector panel (see
About the SSP-3801 card on page 2).
• The web interface that allows you to access the features on the SSP-3801 card (see
About the web interface on page 2).
• A complete suite of User Documentation (see About the SSP-3801 documentation on
page 3).
About the SSP-3801 card
The SSP-3801 is a playout server on a card that plays video and audio clips in a variety of
playout applications. It is used for playing out channel content provided by GV STRATUS
Playout, cloud-based automation and scheduling solution by Grass Valley, A Belden Brand.
The card pulls a copy of the playlist from GV STRATUS Playout, caches the required media
and then plays the media events to air according to the scheduled times or manual control
commands.
In most cases you will interact with the GV STRATUS Playout's interface rather than the card
itself. In fact, you should not have to interact directly with the card except to monitor its
performance, run tests or diagnostics when necessary. For instance, if playout issues arise,
you can access the card directly to run tests or diagnostics to determine the source of the
issue.
Note: A full description of the card’s hardware and functional specifications
are provided in the SSP-3801 Installation and Configuration Guide.
About the web interface
Since the card resides in a Densité 3 frame and may be in a remote location, you will likely
perform most of the tasks by connecting to the card's web interface (see
interface on page 3). Once you supply a username and password, the web interface allows
you to monitor the card independently of any other system.
Once the SSP-3801 card is properly installed and configured, you should not have to
interact directly with the card except to monitor the card's performance, run tests or
diagnostics when necessary.
The interface is divided in three main sections:
• Status header: displays the current status of the card, who is logged into it, the system
time, and allows you to log out of the card. If a connection alarm is triggered for the GV
STRATUS Playout service or the HCO device, its associated tab highlights in red to bring
immediate attention to the situation.
• Menu: contains the card features that allow you to view the media, the card status, and
perform other maintenance tasks.
Opening the web
2
• Page: displays the content for the currently selected Menu item.
Status
header
Menu
Connection
alarms
Fig. 1-1: SSP-3801 Web Interface
Fig. 1-2: Connection alarms displayed in status header
SSP-3801
User Guide
About the SSP-3801 documentation
Your package comes complete with the following documents:
• SSP-3801 Installation and Configuration Guide (PDF: M931-9905-110)
This Guide provides detailed instructions on how to install the SSP-3801 card in a
Densité 3 frame and configure the system parameters using its web interface.
• SSP-3801 User Guide (PDF: M931-9900-110)
This Guide provides detailed instructions on how to access the SSP-3801 web interface,
configure the system preferences, monitor the audio and video output, and use the
timeline to test the playout performance on the card.
While we do our best to ensure that the information is accurate, changes to the software or
hardware can be introduced that don’t always get included in the documentation. If you
notice any errors in the documentation, please contact us at
Opening the web interface
To be able to test, monitor, and diagnose a specific SSP-3801 card, you need to access the
card directly. To do this, you need to access the card on your network using its IP address
and login to it.
IMPORTANT
To access the SSP-3801 web interface, we recommend that you use a
display with a minimum screen resolution of 1920 x 1080 pixels and the
latest version of Google Chrome at 100% zoom in full-screen (F11) mode.
support@miranda.com.
3
Overview of the SSP-3801
Login
name
Opening the web interface
To login to the SSP-3801 card:
1 In a web browser, enter the IP address for the card and press Enter.
For more information on how to assign an IP address for the SSP-3801 card on your
network, see the Installation and Configuration Guide. The SSP-3801 Login page opens.
2 Enter your username and password in their respective fields and click OK.
If this is the first time you are logging into the SSP-3801, you should log in as follows:
Fig. 1-3: SSP-3801 login page
• Username: admin
• Password: P1ayout (the second character is the number 1)
IMPORTANT
If you are configuring the SSP-3801 card for the first time, we recommend
that you change password for the “admin” account.
For more information, see the Installation and Configuration Guide.
If you do not know what your username and password are, contact your System
Administrator.
The System Status information for the SSP-3801 card is displayed in the Status header of
the web interface. It displays the information about the service such as the system time, the
name and status of GV STRATUS Playout, the HCO status (if enabled), and the username of
the person who is currently logged in.
Fig. 1-4: Login name displayed in the header
4
Configuring the Channel Options
This chapter explains how to define the Channel Configuration options on the SSP-3801
card, including the locations of the media files, how to manage incoming system
commands, and what actions to take when the media files are not available.
The Off Air Behavior settings define what the card will do if you force the broadcast off air or
something goes wrong during the broadcast such as a loss of media, an empty playlist, a
missing asset, or a hardware or software crash, for example. Whenever you do not have a
primary event on air, it is considered an off-air situation.
IMPORTANT:
When the SSP-3801 card is registered with GV STRATUS Playout, then GV
STRATUS Playout overwrites any Channel Configuration changes made
through the card’s web interface any time it updates the card with its own
changes.
When the card encounters an off-air situation, one of the following occurs:
• If the card was forced off air and no primary events are available in the playlist, the
configured Off Air Action is triggered immediately.
• If no primary event is on air but primary events are available in the playlist, there is a 3
second delay before the configured Off Air Action is triggered. During the first 2
seconds of the delay, the last frame of the last played clip remains on air. This allows
time for the card to resume the playout, if possible. If the card is unable to resume
playout after 2 seconds, it switches to a black screen for 1 second before triggering the
configured Off Air Action.
The Off Air Action can be configured to output a black screen, output a live feed, or output
a full-screen slide that announces that the broadcast is off-air. The Off Air Action can
activate even in the event of a complete hardware or software crash.
If the off-air situation is still not resolved 30 seconds after the Off Air Action was triggered,
the action selected in the Off Air Recovery list is applied. If a primary event is pending such
as a failed event is being restarted, the card will delay triggering the Off Air Recovery for up
to 30 seconds to allow the possibility of a successful resumption of the playout. Once the
Off Air Recovery is triggered, the Off Air Recovery event continues until valid on-air
programming resumes.
The screen graphic used as the off-air slide should be full-screen, in the required video
standard for the channel, and be in OXT format. The SSP-3801 card contains some samples
of off-air slides in various video standards in the FTP location /mediacache/push, which can
be accessed by using local:// in the path. To use a sample slide, choose the slide with the
appropriate video standard for your channel and type one of the following paths in the Off
Air Slide field:
• local://ApologySlide1080.oxt
• local://ApologySlide720.oxt
• local://ApologySlideNTSC.oxt
• local://ApologySlidePAL.oxt
6
SSP-3801
User Guide
Fig. 2-1: Sample of an off-air slide
To configure what action to take when playout is off-air:
1 Select Channel Configuration > Off Air Behavior. The Off Air Behavior page opens.
Fig. 2-2: Off Air Behavior page
2From the Off Air Action list, select one of the following actions to occur after the initial
three seconds has expired and the off-air situation is not resolved:
• Show Black: displays a black screen with no graphics.
• Show Off Air Slide: displays the full-screen graphic specified in the Off Air Slide
field.
• Show Live: displays the live feed from the source selected in the Live SDI Source
list.
3In the Live SDI Source list, select the source for the live feed to be broadcast if an off-air
situation occurs and the Show Live option is selected.
4In the Off Air Slide field, type the URI location for the screen graphic to be broadcast if
an off-air situation occurs and the Show Off Air Slide option is selected. The screen
graphic should be full-screen, in the required video standard for the channel, and be in
OXT format.
5In the Off Air Recovery list, select one of the following actions to occur 30 seconds after
the Off Air Action if the off-air situation is not resolved:
• Stay Off Air: continues the action selected in the Off Air Action list.
• Perform Take Next: places the next scheduled event on-air.
• Play Evergreen Content: places the Evergreen schedule on-air. For more
information about Evergreen, see
About Evergreen content on page 8.
• Play Evergreen Content Unless Playlist is Empty: places the Evergreen schedule
on-air unless the playlist is empty. If the playlist is empty, it defaults to playing the
action selected in the Off Air Action list instead.
6Click Save when done.
7
Configuring the Channel Options
About Evergreen content
About Evergreen content
Evergreen content is material that is always relevant. In this case, the Evergreen content is a
library of videos that can be broadcast in place of a previously scheduled event that for
some reason cannot be played. The Evergreen media and schedules are managed by GV
STRATUS Playout; however, the media and schedule are cached on the SSP-3801 card.
The card plays the Evergreen content according to two schedule modes depending on the
situation in the playlist:
• Indefinite Media Scheduling mode: plays a continuous cycle of Evergreen videos
scheduled in the order of the least-played to the most-played. If multiple videos have
the same playout count, those videos will each be selected in a random order until all
with the same playout count are played before continuing to the video with the next
least-played count. This mode is launched when there is an indefinite period to fill with
content such as when the playlist is empty.
• Timed Media Scheduling mode: plays Evergreen videos prioritized by how well the
video fits within the off-air period and its playout count. An off-air situation may occur
when an event in an otherwise valid playlist fails to play. This results in an off-air
situation of a definite duration before another valid primary event is scheduled to play.
To fill the time slot, precedence is given to a single event that fits within the given
period with priority given to events that have not been played in the longest time. If a
match is not found, the off-air period is divided in half and attempts are made to fill the
new time slots. The process repeats until the time slots are less than an hour and no
matches are found. If this occurs, then it reverts to a cycle of videos scheduled in the
order of the least-played to the most-played until the off-air period is filled or exceeded
to ensure continuity of the playout. This mode is launched when there is a gap in the
playlist between valid events.
If the channel is configured to play Evergreen content during an off-air situation, it will
access the local cache and play the Evergreen content as required by the situation.
Defining media locations and credentials
For the SSP-3801 card to access the locations where the media files are stored, you must
specify which servers contain the media. Since these servers are likely to have security, you
must also provide the login information so that the card can access the media files.
IMPORTANT:
When the SSP-3801 card is registered with GV STRATUS Playout, then GV
STRATUS Playout overwrites any Channel Configuration changes made
through the card’s web interface any time it updates the card with its own
changes.
To define the media locations and server credentials:
1 Select Channel Configuration > Media Locations.
8
Fig. 2-3: Media Locations/Media Credentials page
SSP-3801
User Guide
2In the Media Locations section, click Add to add new locations where media files are
stored.
3In the Location Details dialog box, type the URI for the media file and click OK. The
format of the URI should be http://[URI], https://[URI], smb://[URI], or ftp://[URI].
4 Define the sequence that the card should follow to download the media. In the Media
Locations section, select the URI and use the Move Up and Move Down buttons to
change its position. Order the media locations closest to the card’s location at the top
of the list and the furthest to the bottom.
5In the Media Credentials section, click Add to add the login credentials for a media
server.
6In the Credential Details dialog box, type the required information in the following
fields to enable access to the server that contains the media files:
• URI: type the http path where the media files reside.
• Domain: type the name of the domain that stores the media files.
• Username: type the login name for the specified Domain.
• Password: type the password assigned to this Username.
Editing media locations
IMPORTANT:
When the SSP-3801 card is registered with GV STRATUS Playout, then GV
STRATUS Playout overwrites any Channel Configuration changes made
through the card’s web interface any time it updates the card with its own
changes.
9
Configuring the Channel Options
Deleting media locations
To edit a m edi a loca t i on:
1 Select Channel Configuration > Media Locations.
2In the Media Locations section, select the location and click Edit.
3In the Location Details dialog box, change the URI address.
4Click OK.
Deleting media locations
IMPORTANT:
When the SSP-3801 card is registered with GV STRATUS Playout, then GV
STRATUS Playout overwrites any Channel Configuration changes made
through the card’s web interface any time it updates the card with its own
changes.
To delete a media location:
1 Select Channel Configuration > Media Locations.
2In the Media Locations section, select the location that you want to delete.
3Click Delete. The media location is removed from the list; however, this does not delete
the media file itself from its location.
Editing media credentials
IMPORTANT:
When the SSP-3801 card is registered with GV STRATUS Playout, then GV
STRATUS Playout overwrites any Channel Configuration changes made
through the card’s web interface any time it updates the card with its own
changes.
To edit a media credential:
1 Select Channel Configuration > Media Locations.
2In the Media Credentials section, select the credential and click Edit.
3In the Credential Details dialog box, change the credential settings.
4Click OK.
Deleting media credentials
IMPORTANT:
When the SSP-3801 card is registered with GV STRATUS Playout, then GV
STRATUS Playout overwrites any Channel Configuration changes made
through the card’s web interface any time it updates the card with its own
changes.
10
To delete a media credential:
1 Select Channel Configuration > Media Locations.
2In the Media Credentials section, select the credential you want to delete.
3Click Delete.
Managing the media downloads to the cache
The SSP-3801 card features onboard storage space that allows you to store and preload
media content locally so that it can be retrieved and broadcast smoothly and quickly. You
can define how the card manages the media cache and what action it should take if the
server times out and the media cannot be accessed.
IMPORTANT:
When the SSP-3801 card is registered with GV STRATUS Playout, then GV
STRATUS Playout overwrites any Channel Configuration changes made
through the card’s web interface any time it updates the card with its own
changes.
To configure how the media cache is managed:
1 Select Channel Configuration > Media Cache. The Media Cache page opens.
SSP-3801
User Guide
Fig. 2-4: Media Cache page
2In the Channel Media section, define when the indicated pre-broadcast alarms are
triggered (in HH:MM format).
• Missing Media time window: type the amount of time before broadcast to trigger
the Missing Media alarm if the media file cannot be found.
• Inaccessible Media time window: type the amount of time before broadcast to
trigger the Inaccessible Media alarm if the media file was found, but cannot be
downloaded to the SSP-3801’s storage space.
3In the Transfer Speed Alarm section, define
• Minimal Download Speed: type the minimum acceptable download speed (from 1
to 100MB/s) for the media. An alarm is triggered if the download speed falls below
the specified threshold.
• Speed Test Period: type the number of seconds (from 1 to 120) defining the length
of the test period used to verify the actual download speed. The download speeds
are tested throughout the specified duration and are averaged. The resulting value
is compared to the Minimal Download Speed threshold to verify its performance.
4In the Max segments per download field, type the maximum number of blocks (up to
10) you can download per server at a time.
11
Configuring the Channel Options
Manually uploading media files into the cache via FTP
5The Parallel Download Configuration section defines the maximum boundaries for
downloads performed in parallel. Set the following values:
• Max (overall) parallel downloads: type the maximum number of downloads (up to
10) that can take place simultaneously.
• Max SMB parallel downloads: type the maximum number of downloads (up to 4)
that use the Server Message Block (SMB) protocol.
• Max HTTP/HTTPS/FTP parallel downloads: type the maximum number of
downloads (up to 10) that can take place simultaneously using the HTTP, HTTPS or
FTP protocol.
6Click Save when done.
Manually uploading media files into the cache via FTP
Media files are transferred to the card in two ways: automatically from GV STRATUS Playout
or manually using FTP. The storage space is shared between the two methods, but it is not
managed in the same way. The media downloaded from GV STRATUS Playout is managed
by the card so that the media scheduled closest to air is cached first and media files not
immediately required may be deleted to make room for those that are. The media files that
were manually uploaded on the card are not managed by the card and remain until
manually deleted, which can be useful for more ‘permanent’ media such as station logos.
Be judicious about the amount of media that you manually upload on the card. Since both
methods share the storage space, the more media manually uploaded on the card, the less
room remains for GV STRATUS Playout’s cache of media.
The manually uploaded media files are also only available on the card and are not made
available to other cards. Unlike the media downloaded from GV STRATUS Playout, the
manually uploaded media files are not managed through the GV STRATUS Playout service
and therefore will not be restored automatically after a card hot swap.
Media files that are manually downloaded to the cache can be accessed by using local:// in
the path. For example, if you downloaded a file called TestSlide.oxt into the
/mediacache/push folder, you would type local://TestSlide.oxt to select the file.
To download media to the cache:
1 Configure the FTP access in the card:
•In the left pane, click Card Configuration > Security.
•In the FTP Password field, type a password for the FTP server.
•In the Device Access Settings section, select Enabled for FTP Access.
•Click Save.
2 Open an FTP connection with the card using “ftp” as the username and the password
that you set in Card Configuration > Security.
3 Add the media files to the mediacache/push folder.
12
About the supported characters for asset IDs, paths, and
mnemonics
The SSP-3801 card only supports ASCII 7-bit printable characters for router source and
destination mnemonics, the asset IDs for the media files, and the components of the path
to the media files. The list of supported characters:
Symbol HexadecimalDescription
20space
!21exclamation mark
"22double quote
#23number sign
$24dollar sign
%25percent
&26ampersand
'27single quote
(28left or opening parenthesis
SSP-3801
User Guide
)29right or closing parenthesis
*2Aasterisk
+2Bplus
,2Ccomma
-2Dminus or dash
.2Edot or period
/2Fforward slash
030zero
131one
232two
333three
434four
535five
636six
737seven
838eight
939nine
:3Acolon
;3Bsemi-colon
<3Cless than
=3Dequal sign
13
Configuring the Channel Options
About the supported characters for asset IDs, paths, and mnemonics
Symbol HexadecimalDescription
>3Egreater than
?3Fquestion mark
@40at symbol
A41uppercase A
B42uppercase B
C43uppercase C
D44uppercase D
E45uppercase E
F46uppercase F
G47uppercase G
H48uppercase H
I49uppercase I
J4Auppercase J
K4Buppercase K
L4Cuppercase L
M4Duppercase M
N4Euppercase N
O4Fuppercase O
P50uppercase P
Q51uppercase Q
R52uppercase R
S53uppercase S
T54uppercase T
U55uppercase U
V56uppercase V
W57uppercase W
X58uppercase X
Y59uppercase Y
Z5Auppercase Z
[5Bleft or opening bracket
\5Cbackslash
]5Dright or closing bracket
^5Ecaret or circumflex
_5Funderscore
14
`60grave accent
Symbol HexadecimalDescription
a61lowercase a
b62lowercase b
c63lowercase c
d64lowercase d
e65lowercase e
f66lowercase f
g67lowercase g
h68lowercase h
i69lowercase i
j6Alowercase j
k6Blowercase k
l6Clowercase l
m6Dlowercase m
n6Elowercase n
o6Flowercase o
SSP-3801
User Guide
p70lowercase p
q71lowercase q
r72lowercase r
s73lowercase s
t74lowercase t
u75lowercase u
v76lowercase v
w77lowercase w
x78lowercase x
y79lowercase y
z7Alowercase z
{7Bleft or opening brace
|7Cvertical bar or pipe
}7Dright or closing brace
~7Eequivalency sign or tilde
Setting the SCTE-104 access level
The SCTE-104 standard allows you to receive trigger messages from the audio or video
feed, which can be used to flag the start and end points for commercial breaks, for example.
It allows you to receive trigger messages in the SDI (Serial Digital Interface) signal that you
can use to control the playlist.
15
Configuring the Channel Options
Setting the SCTE-104 access level
The SSP-3801 card supports SCTE-104 splice requests with the following
splice_insert_types:
• spliceStart_normal: determines the pre-roll period in milliseconds, which defines the
delay between receiving the message and putting the event on air.
• splice_cancel: cancels a scheduled Take Next initiated by a spliceStart_normal
command.
• spliceStart_immediate: attempts to take the next event to air as quickly as possible
(non-deterministic).
In all cases, the event that is to be taken to air should already be on hold in a cued or
commit state. Typically, the schedule should contain an SCTE-104 triggerable manual event
that will hold at the on-air threshold until one of the SCTE-104 splice request is received. For
more information on SCTE-104, refer to the “SCTE 104 2014 Automation System to
Compression System Communications Applications Program Interface (API)” available from
http://www.scte.org.
IMPORTANT:
When the SSP-3801 card is registered with GV STRATUS Playout, then GV
STRATUS Playout overwrites any Channel Configuration changes made
through the card’s web interface any time it updates the card with its own
changes.
To configure how the SSP-3801 card will treat SCTE-104 messages:
2 Select the Act upon SCTE-104 splice request triggers checkbox to execute and log
received SCTE-104 splice messages. Clear the checkbox to ignore and not log the splice
messages.
3 Select the Block all SCTE-104 messages from being passed-through checkbox to
prevent all SCTE-104 messages from reaching the card and from being logged. Clear
the checkbox to allow SCTE-104 messages to reach the card.
4Click Save when done.
16
SSP-3801
User Guide
Configuring the General Purpose Input/Output (GPIO) triggers
The SSP-3801 card has two General Purpose Input/Output (GPIO) connectors offering up to
four opto-isolated, open collector GPIOs. The pinouts are 1|G|2 and 3|G|4. The GPIO pins
function both as inputs and outputs. As inputs they can be used to trigger internal preprogrammed actions and as outputs they can be used to trigger downstream external
hardware. It is not recommended to use the GPIO pins as both inputs and outputs
simultaneously.
When used as an output, the GPIO operates as follows:
• ON: the GPIO pin is internally driven to ground by an opto-isolated, open collector
transistor (active low is represented by 1V or less) and can sink up to 20mA.
• OFF: the GPIO pin is internally pulled weakly high.
When used as an input, the GPIO input is activated as follows:
• ON: the GPIO pin is connected to 0V.
• OFF: the GPIO pin is not connected (the GPIO signal pin is pulled high).
A change from one state to another when the pin is used as an input can be configured to
trigger an action in the playlist. On the GPI Triggers page, you can configure the SSP-3801
card to perform one of the following actions when an input changes to an On or Off state:
• No Action: a change to the state is not acted upon.
• Take Next: a change to the state triggers a Take Next action, which places the next
event in the playlist on air.
• Cue Next: a change to the state triggers a Cue Next action, which cues the next primary
event, its related secondary events, and any subsequent automatic events so they are
ready to go on air safely when a Take Next action is performed.
• Hold Next: a change to the state triggers a Hold Next action, which prevents the next
events from going on-air.
• Drop Next: a change to the state triggers a Drop Next action, which removes the next
event in the playlist.
Configuring the General Purpose Input/Output (GPIO) triggers
2 In each GPI section, specify the action for each state. Each GPI section represents one
input.
18
Testing and Troubleshooting the Playout
This chapter explains how to use the Playlist page to test or troubleshoot the playout from
the card. The Playlist page is not intended to be used to create or edit schedules. Schedules
are created, edited, and added to playlists in GV STRATUS Playout and then the playlist is
downloaded to the SSP-3801 card.
Instead, the Playlist page is used to diagnose whether an issue is caused by GV STRATUS
Playout or the card, to administer the playout during the loss of connectivity with GV
STRATUS Playout, or to test or troubleshoot the configuration of the card.
The SSP-3801 web interface features a timeline that displays the status of the events as the
playlist is played out. Since the playlist is created and managed by GV STRATUS Playout and
then downloaded into the SSP-3801 card, GV STRATUS Playout overwrites any playlist
changes made in the Playlist page any time it updates the card with its own changes.
Fig. 3-1: Playlist page
A timeline appears at the top of the Playlist page. It is a visual display of the playlist as it is
broadcast. It contains three threshold markers:
• Cued (orange, far-right): indicates that the media event is ready to be played. The time
between the Cued and On-air markers is 15 seconds.
• On-air (red, middle): indicates that the media event is currently being played. The time
between the On-air and Timeline boundary markers is 10 seconds.
• Timeline boundary (grey, far-left): indicates the boundary of the timeline view. Once
an event moves fully past the boundary, it disappears from the timeline.
Events become off-air as soon as the entirety of the event rectangle has moved past the Onair threshold (red line). The event remains visible in the timeline until it moves past the
Timeline boundary (grey line).
Fig. 3-2: Playlist timeline
You can move left and right through the timeline to view the entire playlist by clicking in
the timeline and dragging your cursor left or right. To increase or decrease the period
visible in the timeline, click in the timeline and use your scroll button to zoom in or out of
the timeline.
As an event moves through the timeline from right to left, it changes color to indicate its
status. As the events playout, their status is displayed in the timeline, in the channel grid at
the bottom of the page, and in the buttons on the Manual Controls toolbar.
20
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You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.