Ensemble Designs 7465 User Manual
Model 7465 HD/SD,
Model 9465 3G/HD/SD
Sync Changeover Switch
User Guide
Revision 1.1 SW v2.2.0
Clearly, Ensemble wants to be in the broadcast equipment business. It’s so rare anymore to nd a company of this
caliber that has not been gobbled up by a large corporation. They are privately held so they don’t have to please the
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We’ve continued to upgrade the product and add more cards. We will be rebuilding our production control room and
we will use Avenue again.
~ Don McKay, Vice President Engineering, Oregon Public Broadcasting
Who is Ensemble Designs?
By Engineers, For Engineers
In 1989, a former television station engineer who loved
designing and building video equipment, decided to
start a new company. He relished the idea of taking
an existing group of equipment and adding a few
special pieces in order to create an even more elegant
Avenue frames handle 270 Mb/s,
1.5 Gb/s and 3 Gb/s signals,
audio and MPEG signals. Used
worldwide in broadcast, mobile,
production, and post.
ensemble. So, he designed and built his first product and
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engineers have joined Ensemble Designs and this wealth
of practical experience fuels the company’s innovation.
Everyone at the company is focused on providing the
We’re focused on
processing gear–
3G/HD/SD/ASI video,
audio and optical modules.
very equipment you need to complete your ensemble
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that tie everything together so that when combined, the
whole ensemble is exactly what you need.
Notably Great Service for You
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7465 Sync Changeover Switch and 9465 3G Sync Changeover Switch
Contents
Module Overview 4
Fail-Safe Protection Switch 4
Three Channels 4
Auto Mode 4
Restoring Primary Signals 4
Monitoring 5
Importance of Proper Output Termination 5
7465 Block Diagram 6
9465 Block Diagram 7
Applications 8
Installation 10
Cabling 10
Status and Alarm Cabling 10
7465 3RU and 1RU Backplane Diagrams 11
9465 3RU and 1RU Backplane Diagrams 12
Module Configuration and Control 13
7465 and 9465 Parameter Table 14
Front Panel Controls and Indicators 15
Avenue PC and Avenue Touch Screen Remote Configuration 16
7465 and 9465 Avenue PC Menus 17
Status Menu 17
Signals Menu 19
Cong Menu 21
Gang Menu 22
Diag Menu 24
Troubleshooting 25
Software Updates 25
Warranty 26
Factory Service 26
7465 Specifications 27
9465 Specifications 28
Glossary 29
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7465 Sync Changeover Switch and 9465 3G Sync Changeover Switch
Module Overview
Fail-Safe Protection Switch
The Avenue 7465 HD/SD Sync Changeover Switch module and Avenue 9465 3G/HD/SD Sync
Changeover Switch module are fail-safe protection switches for monitoring and switching critical
sync reference signals from any of Ensemble Designs’ reference generators or third-party sync pulse
generators. Ensemble Designs’ generators include: Avenue 5400 Dual Sync Generator and Test Signal
Generator, Avenue 7400 HD/SD Test Signal and Sync Pulse Generator, Avenue 7405 HD Test Signal
Generator, and Avenue 9400 3G Test Signal and Sync Pulse Generator.
When a fault is detected in any of the Primary inputs and the Secondary inputs are verified as good,
the protect switch will activate, causing all of the Secondary inputs to be switched simultaneously to
the module’s outputs, ensuring constant, stable references to a facility. Multiple changeover switches
can be ganged together through the control system. Depending on the application, two or more
Avenue 7465 or 9465 modules may be required to handle all signals that need to be protected.
Three Channels
As illustrated in the block diagram on page 6, these modules are divided into three channels, each
with detection circuits which evaluate input source signal types as configured by the user. The signal
type for each channel can be set locally or remotely. These three channels are referred to in the block
diagram as Channels A, B, and C.
For the Avenue 7465, Channel A tests for HD SDI, SD SDI, ASI and SMPTE 310M signals in terms of
presence and locking. For the Avenue 9465, Channel A tests for these same signals plus 3G. Channels
B and C test for AES audio, Composite Video, Bi-Level Sync and Tri-Level Sync in terms of presence, low
level, high level (overload), and error conditions.
The switch control uses the status of the signal condition from each channel’s signal detector to
determine if the switch will throw from Primary to Secondary. A drop in signal amplitude below a
predetermined auto threshold will trigger the switch. All three channels switch together if any one
signal fails a test.
The user may configure which channels contribute to the decision. Each channel can be disabled
(meaning that it is not tested) if desired. Disabled channels will not test the signal but will still pass the
signal to the output. This allows signals that cannot be tested by the Avenue 7465 or Avenue 9465 to
be used if desired.
Auto Mode
When Auto mode is turned on, a fault in any one Primary signal will cause the switch to automatically
throw to the Secondary signal. With Auto mode turned off, a fault in the Primary signal will generate
an alarm but no switching will take place.
Restoring Primary Signals
Following a fault, the Auto Reset parameter governs how the switch behaves when the Primary signals
are restored. With Auto Reset on, the switch will revert back to the restored Primary reference signals
within a time period pre-set by the user. When Auto Reset is off, manual intervention is needed to
throw the switch back to the Primary reference signals.
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Page 4
7465 Sync Changeover Switch and 9465 3G Sync Changeover Switch
Monitoring
Fault conditions can be monitored with an external alarm system or other device through the 15-pin
Control connector on the rear of the Avenue 7465 or Avenue 9465. Signal status from this connector
can be monitored by a device to show Primary and Secondary signal status and the current position
of the protect switch (Primary or Secondary). Two GPI Override Inputs are also available to allow
changing switch position from an external device. This can be used to manually reset the switch after
the Primary has recovered from a fault condition.
The on-board CPU can monitor and report module ID information (slot location, software version
and board revision) and power status to the optional frame System Control module. This information
can be accessed by the user or set to register an alarm if desired using the remote control options
available.
Importance of Proper Output Termination
The sync changeover switch is designed to be a hard contact device. An input is directly connected
to the output through a relay contact without buffering. Thus, a loss of proper termination of the
output will be seen by the 7465 or 9465 circuitry. Failure of the output termination will cause the 7465
or 9465 to sense the signal as having a fault due to the improper termination. If the module is set for
Auto Mode or Auto Reset, loss of proper termination will cause a flip-flopping of the sync changeover
switch.
While this is usually not a matter of concern in daily operation as the output is properly terminated,
it can produce unexpected results if the switch is installed and powered up without a properly
terminated cable.
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7465 Sync Changeover Switch and 9465 3G Sync Changeover Switch
A Channel
C Channel
7465 Block Diagram
Pri A
HD SDI, SD SDI,
ASI, 310M
Detect
Sec A
Pri B
Out A
B Channel
Sec B
Pri C
Sec C
AES, Composite
Bi-Level Sync
Tri-Level Sync
Detect
AES, Composite
Bi-Level Sync
Tri-Level Sync
Detect
Switch Control
7465 Sync Changeover Switch
Out B
Out C
Other 7465 Modules
Status Relays
GPI In
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7465 Sync Changeover Switch and 9465 3G Sync Changeover Switch
9465 Block Diagram
Pri A
3 Gb/s or 1.5 Gb/s
HD SDI, SD SDI,
ASI, 310 Detect
A Channel
Sec A
Pri B
Out A
B Channel
Sec B
Pri C
C Channel
Sec C
AES, Composite
Bi-Level Sync
Tri-Level Sync
Detect
AES, Composite
Bi-Level Sync
Tri-Level Sync
Detect
Switch Control
9465 Sync Changeover Switch
Out B
Out C
Other 9465 or 7465 Modules
Status Relays
GPI In
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7465 Sync Changeover Switch and 9465 3G Sync Changeover Switch
Applications
As shown in the application on the next page, different sync reference sources from Avenue or thirdparty sync pulse generators can be fed to the three channels on the 7465 or 9465 module. Each
channel output can then be sent to a distribution amplifier to distribute the various sync signals
throughout the facility. It is important that any unused inputs to distribution amplifiers or other
destinations be properly terminated to maintain signal integrity.
Up to four 7465 or 9465 modules can be ganged together to take full advantage of protection for up
to twelve signals. For gang operation, one of the 7465 or 9465 modules is configured as the Master
and the other 7465 or 9465 modules (up to three) are configured as Slaves.
As shown in the illustration below, the Master module makes all decisions about switching based on
signal status from its inputs and those from the Slave module(s). Channel A, B and C status signals
from the Slave module(s) are reported back to the Master module on status indicators labeled Slave
Status in the Gang menu.
The ganged 7465 or 9465 modules may reside in the same frame or in different frames but must be
on the same AveNet network. The Master and Slave configurations are defined in the Gang remote
control menu for each module. Each module is then identified to the other by its AveNet frame
address and its slot location in that frame so the modules can communicate through the control
system.
Relay circuits accessible from the 15-pin D Control connector on the rear backplane (not shown) can
also be connected to alarms for monitoring Primary and Secondary status and switch position.
7465
Master
Configure In Gang Menu:
AveNet Address 1–1000
Slot Number of Slave Module 1–10
Switch Command
Master – Slave Relationship Between 7465 Ganged Modules
Configure In Gang Menu:
AveNet Address 1–1000
Slot Number of Master Module 1–10
Signal Status
7465
Slave
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7465 Sync Changeover Switch and 9465 3G Sync Changeover Switch
9465
Sync Changeover
Primary
9400
Sync
Pulse
Generator
SDI Bars
Analog Bars
Analog Black
SDI Black
AES Audio
HD TLS
Pri A
Pri B
Pri C
To Ganged
Sec A
Sec B
Secondary
9400
Sync
Pulse
Generator
9465
SDI Bars
Analog Bars
Analog Black
SDI Black
AES Audio
HD TLS
To Ganged
9465
Sec C
SDI
Bars
Out A
DA
Analog
Bars
Out B
DA
Analog
Black
Out C
DA
From
Primary
9400
From
Secondary
SDI Bars
Analog Bars
Analog Black
SDI Black
AES Audio
Pri A
Pri B
Pri C
Sec A
Sec B
Switch
Switch
9400
HD TLS
Sec C
Switch
9465
Sync Changeover (Ganged)
Ganged 9465 Modules Fed by Primary and Secondary 9400 Modules
Out A
Out B
Out C
SDI
Black
AES
Audio
HD
TLS
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7465 Sync Changeover Switch and 9465 3G Sync Changeover Switch
Installation
Plug the 7465 or 9465 module into any one of the slots in the 1RU or 3RU frame and install the plastic
overlay provided onto the corresponding group of rear BNC connectors associated with the module
location. Note that the plastic overlay has an optional adhesive backing for securing it to the frame.
Use of the adhesive backing is only necessary if you would like the location to be permanent and is not
recommended if you need to change module locations. This module may be hot-swapped (inserted or
removed) without powering down or disturbing performance of the other modules in the system.
Cabling
Refer to the 1RU and 3RU backplane diagrams of the module on the following page for cabling
instructions. Note that unless stated otherwise, the 1RU cabling explanations are identical to those
given in the 3RU diagram.
Status and Alarm Cabling
In addition to full monitoring and access through the control system, the module provides contact
closure status indications through the 15-pin D Control connector on the corresponding rear slot
of the frame. These connections can drive an alarm system or other external monitoring devices
including LEDs. Two override GPI Inputs can also be accessed through the connector. Pinouts for the
status monitoring are given in the illustration on the next page.
Form C relay contacts provide both NO (Normally Open) and NC (Normally Closed) switching to
indicate fault status of the Primary and Secondary inputs and the protection switch output. Both
the NO and NC contacts are simultaneously available on the Control connector. Each output is
independently strappable to provide Ground, current-limited +5V (1k Ω resistor), or a Common which
appears on the D connector.
The three relay contacts provide the following status reporting:
• Primary Good or Failed – indicates Primary input status as Good when NO contact is active
(switched to Common).
• Secondary Good or Failed – indicates Secondary input status as Good when NO contact is
active (switched to Common).
• Switch Position – indicates the position of the protect switch as either Primary or Secondary
selected. The normal position corresponds to the Primary feeding the output.
An individual common is provided to each of the relays. For each of the three status relays there is a
3-position jumper on the module which configures the common signal that will be used by that relay.
The choices are as follows:
• COM – uses the user-provided common signal from the Control connector.
• +5 – provides a +5V signal through a 1k Ω resistor to the relay common.
• Gnd – uses ground as the relay common.
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7465 Sync Changeover Switch and 9465 3G Sync Changeover Switch
Control
7465 3RU and 1RU Backplane Diagrams
Channel C – AES audio,
Composite, Bi-Level Sync,
Tri-Level Sync Ref:
Connect a primary analog
composite, AES digital audio,
Bi-Level Sync or Tri-Level Sync
reference input signal to Pri C.
Connect a secondary analog
composite, AES digital audio,
Bi-Level Sync or Tri-Level Sync
reference input signal to Sec C.
Connect the Channel C output
reference signal from Out C to a
properly terminated distribution
amplifier for feeding the signal
throughout the facility.
NOTE: Tri-Level Sync is available
only in Remote mode.
5
10
15
PIN FUNCTION
1
2 Pri NC
3
4 Pri Com
5
6
7
8
9 Prot NC
10 Prot NO
11 Prot Com
12 Pri Sel
13
14 Sec Sel
15
Pri NO
Sec NO
Sec NC
Sec Com
11
3RU Backplane
Channel B – AES audio,
Composite, Bi-Level Sync,
Tri-Level Sync Ref:
7465 SC
Sec C
Connect a primary analog
composite, AES digital audio,
Bi-Level Sync or Tri-Level Sync
Out C
reference input signal to Pri B.
Connect a secondary analog
Pri C
composite, AES digital audio,
Bi-Level Sync or Tri-Level Sync
reference input signal to Sec B.
Sec B
Connect the Channel B output
reference signal from Out B to a
properly terminated distribution
amplifier for feeding the signal
Out B
throughout the facility.
NOTE: Tri-Level Sync is available
Pri B
only in Remote mode.
Channel A – HD SDI, SD SDI, ASI,
1
6
Sec A
Out A
310:
Connect a primary HD SDI, SD SDI
input signal to Pri A.
Connect a secondary HD SDI, SD
SDI input signal to Sec A.
Pri A
Control
Connect the Channel A output
reference signal from Out A to a
properly terminated distribution
amplifier for feeding the signal
throughout the facility.
IMPORTANT NOTE: All channel output destinations must
be terminated properly. Improper termination will affect the
integrity of the sync signal and cause errors. Be sure any unused
inputs to distribution amplifiers or other destinations are
terminated.
1RU Backplane
7465 SC
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Out C
Pri AOut BSec B Sec A
Pri BPri CSec C
Out A
Control
Page 11
7465 Sync Changeover Switch and 9465 3G Sync Changeover Switch
Control
9465 3RU and 1RU Backplane Diagrams
Channel C – AES audio,
Composite, Bi-Level Sync,
Tri-Level Sync Ref:
Connect a primary analog
composite, AES digital audio,
Bi-Level Sync or Tri-Level Sync
reference input signal to Pri C.
Connect a secondary analog
composite, AES digital audio,
Bi-Level Sync or Tri-Level Sync
reference input signal to Sec C.
Connect the Channel C output
reference signal from Out C to a
properly terminated distribution
amplifier for feeding the signal
throughout the facility.
NOTE: Tri-Level Sync is available
only in Remote mode.
5
10
15
PIN FUNCTION
1
2 Pri NC
3
4 Pri Com
5
6
7
8
9 Prot NC
10 Prot NO
11 Prot Com
12 Pri Sel
13
14 Sec Sel
15
Pri NO
Sec NO
Sec NC
Sec Com
11
3RU Backplane
Channel B – AES audio,
Composite, Bi-Level Sync,
Tri-Level Sync Ref:
9465 SC
Sec C
Connect a primary analog
composite, AES digital audio,
Bi-Level Sync or Tri-Level Sync
Out C
reference input signal to Pri B.
Connect a secondary analog
Pri C
composite, AES digital audio,
Bi-Level Sync or Tri-Level Sync
reference input signal to Sec B.
Sec B
Connect the Channel B output
reference signal from Out B to a
properly terminated distribution
amplifier for feeding the signal
Out B
throughout the facility.
NOTE: Tri-Level Sync is available
Pri B
only in Remote mode.
Channel A – 3G, HD SDI, SD SDI,
1
6
Sec A
Out A
Pri A
Control
ASI, 310:
Connect a primary 3G, HD SDI,
SD SDI input signal to Pri A.
Connect a secondary 3G, HD SDI,
SD SDI input signal to Sec A.
Connect the Channel A output
reference signal from Out A to a
properly terminated distribution
amplifier for feeding the signal
throughout the facility.
IMPORTANT NOTE: All channel output destinations must
be terminated properly. Improper termination will affect the
integrity of the sync signal and cause errors. Be sure any unused
inputs to distribution amplifiers or other destinations are
terminated.
1RU Backplane
9465 SC
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Out C
Pri AOut BSec B Sec A
Pri BPri CSec C
Out A
Control
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