Studio Technologies 5154 User Manual

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Model 5154

Video Generator/Audio De-Embedder Module

User Guide

Issue 3, September 2013

This User Guide is applicable for

Model 5154 modules with the following order codes:

M5154, M5154-05, M5154-02, M5154-03X, and M5154-04X

with serial numbers 00151 and later

and ﬁrmware versions

MCU 2.1 and later (m5154.s19) and FPGA 2.2 and later (m5154.bit)

www.studio-tech.com

50186-0913, Issue 3

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Introduction ................................................................... 5

Installation .................................................................... 9

Conﬁguration ................................................................ 13

Operation ...................................................................... 19

Technical Notes ............................................................ 23

Speciﬁcations ............................................................... 29

Appendix A—Model 5154 Versions .............................. 30

Appendix B—DC Input/Data Interconnection Details ... 31

Appendix C—Model 5154 Front Panel and

Printed Circuit Board (PCB) Dimensions ...................... 33

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Introduction

The Model 5154 Video Generator/Audio De-Embedder Module is a unique device suited for a variety of custom broadcast, post-production, industrial, and corporate multimedia installations. As a member of the 5100-Series of modules, the Model 5154’s compact size belies its powerful video and audio feature set. At its most basic, the Model 5154 provides the ability to de-embed up to eight audio channels (four AES3 digital audio “pairs”) from a SMPTE®-compliant HD- or 3G-SDI video “stream.” The SDI source, connected either by way of a coaxial (BNC) or optional ﬁber optical input, will always be routed to the coaxial (BNC) and optional ﬁber optic outputs. Should a source not be connected to the SDI input, advanced circuitry within the Model 5154 will automatically generate a broadcast-standard high-deﬁnition SDI signal. This ensures that devices “downstream” from the Model 5154 will always be presented with an active SDI signal.

Rather than reproducing a ﬁxed test pattern, the Model 5154 has the capability to store and output two custom video images. The images, one for “720” and one for “1080,” are based on bitmap (.bmp) ﬁles that can be created using a personal computer’s graphics program.

For convenience, the .bmp ﬁles are stored in the module’s nonvolatile memory via a standard USB ﬂash drive. The appropriate “720” or “1080” image is automatically connected to the SDI output whenever an SDI input signal is not present. This ensures that an SDI output signal is always sent to equipment further along the signal chain.

The Model 5154’s video signal generation capability can be extremely useful, serving as both a “keep-alive” signal as well as allowing a detailed graphics image to be displayed for identiﬁcation purposes. When a valid HD- or 3G-SDI signal is connected to the module’s input it will have eight of its audio channels (four AES3 digital audio pairs) de-embedded, as well as passing through, unchanged, to the module’s SDI output. Only when an input is not present will the stored image be generated. (Note, however, that no audio signals will be generated.) The format and rate of the stored image will match that of the previously-connected SDI input signal. This “learning” capability allows a Model 5154 to automatically adapt to the SDI format and rate utilized by a speciﬁc facility or application.

An alternate operating mode can be selected, allowing the Model 5154 to serve as a dedicated video signal generator. In this mode an SDI signal connected to the module will serve as an external timing reference.

Figure 1. Model 5154 Video Generator/Audio De-Embedder Module front and rear views

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General Highlights

Applications for the Model 5154 include sports broadcasting booth packages, “POV” (point-of-view) remote-controlled camera systems, stadium audio/video interface (I/O) locations, and government/ corporate facilities. The module’s performance is completely “pro” with video and audio quality, reliability, and installation ﬂexibility matching that of much largerscale equipment.

For operation the Model 5154 only requires connection of a few signals. These consist of SDI inputs and outputs, four unbalanced digital audio outputs, an external source of nominal 12 volts DC and, optionally, two wires associated with a local RS-485 data bus. Coaxial SDI input and output support is standard. Optical input and output support is optional. The acceptable DC input voltage range is 10 to 18, allowing a variety of power sources to be utilized.

The Model 5154 uses standard connectors for fast, convenient interfacing. Coaxial SDI input and output signals use BNC connectors. An optional video SFP ﬁber optic module can be installed at the factory. The module supports interconnection of single-mode optical ﬁbers using LC plugs. Digital audio output signals interface with the Model 5154 by way of a 9-pin D-subminiature connector. The DC power input and data bus connections use a 4-position,

0.1-inch header. Low-cost IDC (insulationdisplacement connector) mating sockets allow simple interconnection with a variety of wire gauges. Twelve status LEDs offer users both performance conﬁdence and troubleshooting assistance.

The Model 5154 is compatible with the Studio Technologies’ Model 5190 Remote

Access Module. This will allow remote conﬁguration, monitoring and control, via an Ethernet connection, of key module operating and status parameters. A local RS-485 data bus allows up to 16 of the 5100-Series modules to be connected to a Model 5190.

Several Model 5154 operating parameters can be conﬁgured to meet the needs of speciﬁc applications. A USB ﬂash drive along with several DIP switches, are used to convey the conﬁguration to the module. A simple text ﬁle that reﬂects the desired conﬁguration is created and stored on the USB ﬂash drive. When inserted into the appropriate socket on the Model 5154 the ﬁle is read and stored. Updating the Model 5154’s ﬁrmware (embedded software) is also possible using a USB ﬂash drive loaded with factory-supplied ﬁles.

Model 5154 Video Generator/Audio DeEmbedder Modules do not include a mounting enclosure or chassis. They are intended for mounting in custom 19-inch rack panels, equipment boxes, broadcast furniture, “NEMA” I/O boxes, or other specialized enclosures. It is expected that integration ﬁrms will create applications that use Model 5154 modules as part of complete broadcast, production, corporate, and government solutions. Sophisticated users will be able to easily create “one-off” solutions to solve unique challenges.

SDI Inputs and SDI Outputs

High-deﬁnition SMPTE-compatible SDI signals with data rates of 1.485 Gb/s nominal (HD-SDI) and 2.97 Gb/s nominal (3GSDI) can be connected. Virtually all of the commonly-utilized “720” and “1080” formats are supported. Standard-deﬁnition SDI signals with a data rate of 270 Mb/s nominal (SD-SDI) are not supported. It was felt

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that users looking for advanced solutions such as those provided by the Model 5154 will not typically be working with SD-SDI signals. But be assured that many HD-SDI and 3G-SDI formats and rates are supported, allowing the Model 5154 to be appropriate for worldwide use.

Coaxial (BNC) Support

Using standard BNC connectors, the Model 5154 supports one coaxial SDI input and one coaxial SDI output.

Optical Fiber Support

Factory-implemented options allow the Model 5154 to support SDI signals that are transported using single-mode optical ﬁbers. Using video SFP modules a range of optical input, output, and transceiver capabilities can be supported. For a list of available Model 5154 versions refer to Appendix A.

The standard 1310 nanometer optical transmit wavelength is available, as are the more-esoteric CWDM wavelengths. A module that includes an optical SDI output will always have its optical output active, transporting the same SDI data as that present on the coaxial (BNC) output. When a Model 5154 has been provided with an optical SDI input a conﬁguration choice selects whether it, or the coaxial (BNC) input, is active.

Video Generation Capability

During typical operation an HD- or 3G-SDI signal is connected to the Model 5154’s selected SDI input. Audio channels are deembedded from the SDI signal without removing or changing the audio group data. The SDI source is also “passed through” to the module’s SDI output(s) and on to

the next part of the signal chain. But what happens when the external SDI signal is not present? That’s when the Model 5154’s internal SDI generator becomes active. When a signal is not present on the selected SDI input the module will generate a high-deﬁnition (HD- or 3G-SDI) image that will serve as a “slate,” ID, or “SDI-active” signal. No audio data will be present in the generated SDI signal as there is no embedding function provided. The four digital audio outputs will remain active but no actual audio signal will be present. (The audio data will be all “0”s because there is no audio data being de-embedded.)

From the factory two bitmap (.bmp) image ﬁles are stored in nonvolatile memory. One ﬁle is used for generating the image for 1280 x 720 pixel formats and the other for 1920 x 1080 pixel formats. But alternate bitmap image ﬁles can be created and stored in the Model 5154. These alternate images can supply site- or applicationspeciﬁc information useful to “downstream” users. Using a personal-computer graphics program, such as Microsoft® Paint® or Adobe® Photoshop®, generating custom images and storing them in the appropriate bitmap format is a simple matter.

A USB port, located on the Model 5154’s front panel, allows direct connection of a standard USB ﬂash drive. If the Model 5154’s ﬁrmware (embedded software) recognizes compatible FAT32 bitmap (.bmp) ﬁles on the USB ﬂash drive they will be automatically loaded into nonvolatile memory. The USB ﬂash drive can then be removed with the custom images safely stored within the Model 5154.

One subtle but important conﬁgurable feature has been included for broadcast applications which use the Model 5154’s

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SDI output(s) “on-air.” When an SDI signal is removed from the module’s selected SDI input, the Model 5154 can be conﬁgured to output a few seconds of solid-gray color before the stored image appears. This will help to ensure that technicians or operators will be visually “warned” that the module’s input signal has been lost and that the stored image will soon be taking its place. It’s hoped that the solid-gray video image will be innocuous for on-air viewers yet different enough to encourage operators to switch the module’s output away from being “on air.”

A unique feature of the Model 5154 is its ability to automatically adapt to the format and rate of a connected SDI signal. This allows the stored image to be output at the same format and rate as that used by the associated network, local facility, or event. If, for example, a connected input is “1080i/59.94” then the Model 5154 will automatically detect and store that information. From then on whenever an SDI input signal is not present the internal generator will output the stored image at “1080i/59.94.” Changing the format and rate of the generator only requires connection of an SDI signal with the desired characteristics. (A minimum required connection time helps to ensure that an accidental format/rate change won’t occur.) However, there may be situations where maintaining the format and rate of the internally-generated signal is important. To support this condition one conﬁguration choice allows the automatic format/rate selection function to be disabled.

Video Generation with External Reference

Some applications may beneﬁt from the Model 5154 serving as a full-time stand

alone video generator. A conﬁguration choice helps to support such applications by using the selected SDI input only as a timing reference. Unlike typical operation, when selecting this operating mode a signal connected to the selected SDI input would not pass through to the SDI. Its rate, format, and speciﬁc timing characteristics would be used as a reference for the internally-generated video output. Note that bi-level or tri-level analog timing reference signals are not supported. Only a HD-SDI or 3G-SDI signal can serve as a reference signal for the Model 5154.

Audio De-Embedding

The Model 5154 allows four stereo digital audio signals (eight audio channels) to be de-embedded from the input SDI signal. Eight conﬁguration choices allow ﬂexibil ity as to how the audio groups present in the SDI source will be de-embedded and routed to the four digital audio outputs. A range of applications can be supported by taking advantage of the module’s ability to de-embed from groups 1, 2, 3, and 4.

The four digital audio outputs are unbal anced, 75 ohms, and follow the AES3 standard. They comply with broadcaststandard “24-bit, 48 kHz” digital audio signals. They follow the internal timing of the Model 5154 and cannot be locked to an external reference.

The Model 5154’s digital audio outputs are directly compatible with the digital audio inputs on several 5100-Series modules from Studio Technologies. These include the Model 5121 Line/IFB Output Module and the Model 5140 Intercom Interface Module.

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When audio is being de-embedded from the SDI input signal the de-embedding process will not change any incoming audio group data. All embedded audio signals present on the SDI input will “pass through” unaltered to the SDI output. This is important as “downstream” equipment will often also need access to the audio content.

It’s important to note that when changing from an external SDI signal to the internal generator (or vice-versa) the SDI output will momentarily lose timing and some video and audio “glitches” may be present. For the intended Model 5154 applications this should not prove to be an issue but is worth mentioning.

Installation

Integration of the Model 5154 into a selected application should prove quite simple, only connecting SDI input and output signals, digital audio outputs, as well as DC power is required. The coaxial (BNC) input and output connections are compatible with most HD-SDI and 3G-SDI signals. If the speciﬁc Model 5154 being installed also includes optical support one or two single-mode ﬁber interconnections will be made. The ﬁber connections utilize miniature LC plugs.

Four AES3-compliant unbalanced digital audio outputs are connected by way of a 9-pin D-subminiature (DE-9) connector. Each of these four digital audio signals supports two channels of audio.

with a Studio Technologies’ Model 5190 Remote Access Module. If so, two additional wires are required to connect the module to the data bus. After all the connections have been completed the module can then be secured into the designated mounting location.

Coaxial (BNC) SDI Output

The Model 5154 provides an SDI output that utilizes a broadcast-standard BNC socket. This output is referred to as the coaxial (BNC) SDI output. Refer to Figure 2 for a detailed view of the connector’s location on the rear of the module. The coaxial (BNC) output, depending on operating conditions, will be either a SMPTEcompliant HD-SDI (1.485 Gb/s nominal) or a 3G-SDI (2.97 Gb/s nominal) signal. The exact format/rate combinations supported by the Model 5154 are listed in the Speciﬁcations section of this guide.

Coaxial (BNC) SDI Input

An SDI source can be connected to the Model 5154 by way of a broadcaststandard BNC connector. This is referred to as the coaxial (BNC) SDI input. Refer to Figure 2 for a detailed view of the connector’s location on the rear of the module. The coaxial (BNC) input is compatible with SMPTE-compliant HD (1.485 Gb/s nominal) and 3G (2.97 Gb/s nominal) SDI signals. It is not compatible with standard deﬁnition SD-SDI (270 Mb/s nominal) signals. The exact format/rate combinations supported by the Model 5154 are listed in the Speciﬁcations section of this guide.

The DC power source is nominal 12 volts with an acceptable range of 10 to 18 volts. It’s possible that the module will be part of a local RS-485 data bus that’s associated

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A conﬁguration setting must be made for the coaxial (BNC) SDI input to be active. Refer to the Conﬁguration section of this guide for details.

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Optical SDI Output

This section applies only when the speciﬁc Model 5154 module being installed was conﬁgured at the factory to provide an optical output. A video SFP (small form-factor pluggable) optical module is used to provide the optical SDI output. A range of SFP modules can be installed in the “cage” at the back of the Model 5154. These include transceiver modules that have both an optical output (transmitter) and an optical input (receiver), as well as output-only (transmitter) modules. The technical characteristics of the optical output will depend on the speciﬁc module installed. The most common transceiver or output-only SFP module used in the Model 5154 will have an FP (Fabry-Perot) laser emitting “light” at a wavelength of 1310 nanometers. Other modules can utilize a higher-performance DFB (distributed feedback) laser that is manufactured to produce light at one of the 18 CWDM wavelengths. (For broadcast applications, the common ﬁrst-utilized

CWDM wavelengths are often 1490 and 1550 nanometers.)

An LC plug terminated on a single-mode optical ﬁber is used to mate with the SFP’s optical output. When referenced to the front of an SFP transceiver or output-only SFP module the optical output is located on the SFP module’s left side. To indicate the optical output port a graphic arrow icon pointing “out” may be present on the top of the module. Refer to Figure 2 for a detailed view. When terminating the LC plug with the socket on the SFP module be certain that the plastic plug’s locking tab is fully engaged into the slot of the SFP module. This will help prevent the LC plug from becoming disconnected due to physical stress or vibration on the ﬁber. Also ensure that the end (“face”) of the plug’s ferrule has been cleaned using appropriate methods.

Note that as of the time this user guide was written the Model 5154 supports only single-mode optical cable. Contact Studio

Figure 2. Detailed rear view of the Model 5154 Video Generator/Audio De-Embedder Module showing the MCU and FPGA boards

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Technologies should support for multi-mode ﬁber be required.

The Model 5154 module should remain without power whenever its optical output has not been terminated. This ensures that the optical energy will not project into free space and possibly into the eyes of installation personnel. The optical output power of video SFP modules selected by Studio Technologies adheres to the class 1 laser standard. As such, they do not emit sufﬁcient power to be considered hazardous. But best safety practices require that the optical output port and all unconnected ﬁber ends not be directly viewed.

No conﬁguration setting is required to activate the optical output. It is always active and will contain the same SDI data as that found on the coaxial (BNC) output. As such there is no problem in simultaneously connecting to both the optical and coaxial (BNC) outputs.

Optical SDI Input

If supported by the speciﬁc Model 5154 module being installed, an HD- or 3G-SDI signal transported on a single-mode optical ﬁber can be connected. For an input to be present a video SFP transceiver or a receive-only SFP module must have been installed in the SFP “cage” in the back of the unit. The optical receiver circuitry in an SFP module is “broadband” and doesn’t need to receive a speciﬁc wavelength of singlemode optical signal for correct operation. As long as the optical signal has a wavelength between 1250 and 1650 nanometers and meets the applicable SMPTE standards it will be recognized correctly.

A single-mode optical ﬁber terminated with an LC plug can be connected to the receive port on the SFP module. This port is on the

right side when looking directly at the back of the SFP module. Typically there will be a graphic arrow icon pointing “in” on the top of the module. Refer to Figure 2 for details on the location of the SFP module. Ensure that the LC plug fully “mates” with the receive port and its tab is locked into the slot of the SFP module.

A conﬁguration setting must be appropriately made to enable the optical SDI input. There is no automatic switching between the optical and coaxial (BNC) SDI inputs. Only one of the two SDI inputs can be selected and active at a time. Refer to the Conﬁguration section of this guide for details.

Digital Audio Outputs

Four unbalanced digital audio outputs are supplied by the Model 5154. Following SMPTE standards, their audio data will be derived by de-embedding audio group data from the SDI input signal. The four digital audio outputs represent eight audio channels, two per digital audio signal. The four outputs comply with the AES3 standard for unbalanced serial digital audio signals. They have a characteristic impedance of 75 ohms and a nominal signal level of 1 volt peak-to-peak. This type of signal was previously referred to as being an AES3id digital audio signal.

The sample rate of the digital audio outputs is 48 kHz with a bit depth of 24. The signals are essentially asynchronous, their timing being based on the internal timebase of the Model 5154. There is no provision to “lock” the four digital audio outputs to an externally-connected timing reference source. It’s expected that the audio data in the AES3 signals will follow either the AES (–20 dBFS) or EBU (–18 dBFS)

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reference level standard. This is because the module’s de-embedding function simply takes the audio data from the incoming SDI signal and inserts it into the correct data locations of the AES3 signal.

An interconnecting cable assembly must be prepared with a 9-pin male D-subminiature plug (DE-9M) on the end intended for connection with the Model 5154. This cable will interface the digital audio signals with the 9-pin female “D-sub” (DE-9F) connector located on the back of the Model 5154. Refer to Figure 3 for detailed connection information.

It’s expected that four independent pieces of coaxial cable will be used to connect the unbalanced digital audio output signals to the DE-9M plug, so using miniature coaxial cable is highly recommended! The connector pin assignments were carefully

6 Output 1 (audio channels 1/2)

1 Shield 1

7 Output 2 (audio channels 3/4) 2 Shield 2

8 Output 3 (audio channels 5/6) 3 Shield 3

9 Output 4 (audio channels 7/8) 4 Shield 4

5 Not Used

Notes:

1) Connector type on Model 5154 is a 9-pin D-subminiature female (DE-9F). Installer must provide a 9-pin D-subminiature male (DE-9M). Connector uses 4-40 threaded inserts for locking with mating plug.

selected to assist in efﬁciently making these “hot” and “shield” connections.

As a ﬁnal step, the cable assembly’s 9-pin plug should be mated with the connector on the Model 5154. The locking screws on the ends of the plug should be securely afﬁxed to the “ears” of the connector. The two threaded fasteners associated with the “D-sub” use 4-40 threads.

DC Input and Data Bus

A 4-position header is used to connect DC power and a local RS-485 serial data bus to the Model 5154. Two pins on the mating connector are used to connect a source of nominal 12 volts DC. The acceptable range is 10 to 18 volts DC with a maximum current of 400 milliamperes at 12 volts DC. For remote control operation two pins on the mating connector will implement the data bus connection from a Studio Technologies’ Model 5190 Remote Access Module.

The mating connector is compatible with the AMP MTA-100 series of IDC receptacles. For 22 AWG wire the closed-end-style receptacle is AMP 3-643813-4; the feedthrough-style receptacle, used for busing connections, is AMP 3-644540-4. The body color for both receptacles is red, following the convention of the MTA-100 series for compatibility with 22 AWG wire. Refer to Appendix B of this guide for additional connector details.

1. – DC (Common)

2) All outputs AES3 unbalanced digital audio; 75 ohm/1 Vpp (formerly AES3id).

3) Total of eight audio channels (four “stereo” pairs).

Figure 3. Digital Audio Output Connections

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2. + DC (10-18 volts)

3. + Data (RS-485)

4. – Data (RS-485)

Figure 4. DC Input and Data Bus Connections

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Mounting

The Model 5154 is intended for mounting in an installation-speciﬁc enclosure or rack panel. Refer to Appendix C at the end of this guide for details on the required mounting opening and screw locations. Please contact the factory to discuss mounting options.

Conﬁguration

The manner in which a speciﬁc Model 5154 operates depends on how it has been conﬁgured. One conﬁguration parameter, RS-485 Address, is set in hardware using four DIP switches. The other Model 5154 operating parameters can be set either by way of menu pages associated with a Model 5190 Remote Access Module or by way of a simple text ﬁle that is stored on a USB ﬂash drive. (The ﬁle will automatically load when the USB ﬂash drive is inserted into the Model 5154.) To assist in the conﬁguration process an information ﬁle, STATUS.TXT, is automatically created by the Model 5154 and stored on the same USB ﬂash drive.

RS-485 Address

A data bus address must be conﬁgured for applications that implement remote control of Model 5154 functions. While up to 16 Model 5100-Series modules can “share” the RS-485 data bus, each module must have a unique address. Selecting the device’s address involves setting four conﬁguration switches on the MCU board. The switches are a “piano key” type with their up position being deﬁned as off and their down position deﬁned as on.

Note that there are a number of unused DIP switches. One is located on the MCU board and ﬁve are located on the FPGA board. These switches are reserved for future use.

Figure 6. RS-485 Address Settings

Conﬁguring Everything Else

Many other Model 5154 operating parameters can be conﬁgured using the Model 5190 Remote Access Module or by way of

Figure 5. Rear view showing MCU and FPGA board conﬁguration DIP switches

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a text ﬁle. Details on how to use the Model 5190’s menu pages are covered in other documentation. Understanding how to create and use a conﬁguration text ﬁle will be covered in this guide.

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An initial overview of the conﬁguration choices is provided in the following paragraphs. Following these paragraphs are details on how to determine a module’s current conﬁguration and how to revise parameters as required.

SDI Input Select

The Model 5154 is capable of having its SDI input in the form of a coaxial signal (BNC connector) or an optical signal (SFP module). All versions of the Model 5154 support the coaxial (BNC) input. The optical input is an option and may or may not be present on the speciﬁc module you are conﬁguring. Conﬁguring this function can be performed using the Model 5190 Remote Access Module or by way of a text ﬁle stored on a USB ﬂash drive.

SDI Output Image Format/Rate Mode

One setting is used to select how the format and rate of the internal SDI generator is selected. (The internal SDI generator creates the short-duration solid-gray video image and plays back the stored “720” and “1080” images.) In the Auto mode the format and rate will automatically “follow” that of a connected SDI input. This allows the Model 5154 to automatically “learn” the speciﬁc format and rate used by a broadcast facility or live event. In the Locked mode the format and rate of the internal SDI generator will be “locked” so that it will not change. Conﬁguring this mode can be performed using the Model 5190 Remote Access Module or by way of a text ﬁle stored on a USB ﬂash drive.

Delay Before Stored Image

The Model 5154 can output a solid-gray video image prior to the stored image being generated. This is provided as an

innocuous indication to downstream equipment that a loss of SDI has occurred. The solid-gray image can be selected to be present for a ﬁxed duration of one to seven seconds. It can also be disabled allowing the stored image to be output as soon as a loss of an input SDI signal is detected.

Moving Image Overlay

A “moving” graphic image can be overlaid onto the stored “720” and “1080” images when either one is being output by the Model 5154. The image is a red-colored box that slowly moves around the screen. This simple icon provides an indication to personnel located downstream of the Model 5154 that the SDI signal is active. This can be important to ensure that a distinction can be made between an active image and an image that’s the result of the last valid frame being held and displayed by a piece of equipment even though its SDI input is no longer present.

When the function is off the stored images (“720” and “1080”) will be displayed without the moving image being added. When the function is on the moving image will be added. Conﬁguring this mode can be performed using the Model 5190 Remote Access Module or by way of a text ﬁle stored on a USB ﬂash drive.

SDI Input as Timing Reference

In most applications it’s desired that a signal connected to the selected SDI input will automatically be routed to the SDI output(s). But in special cases the Model 5154 may be used as a full-time video generator. In this latter case the ability to connect an external timing reference would be desirable. This would allow the SDI output(s) to be “locked” to a master or

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“house” timing signal. An operating mode selection allows an HD- or 3G-SDI signal to serve as a timing reference.

When the SDI Mode is set for Normal a signal connected to the Model 5154’s selected SDI input will pass through to the SDI output(s). When SDI Mode is set for RefOnly the timing, rate, and format of the input SDI signal will impact the internallygenerated video image output. The video information associated with the input signal will not be routed to the SDI output(s). Conﬁguring this mode can be performed using the Model 5190 Remote Access Module or by way of a text ﬁle stored on a USB ﬂash drive.

Audio De-Embedding

One of the strengths of the Model 5154 is its ability to select which audio groups from the SDI input will be de-embedded and routed to the four digital audio outputs. Eight conﬁguration selections allow a wide range of de-embedding choices.

Six of the de-embedding choices are provided so that any combination of the four SDI audio groups (1, 2, 3, and 4) can be de-embedded. The last two de-embedding choices provide a unique DA (distribution ampliﬁer) function for applications where audio data is only present in group 1 or group 2.

text ﬁle which is stored on a USB ﬂash drive. This ﬁle can then be easily viewed using a personal computer. Information provided in the ﬁle includes ﬁrmware version numbers, hardware serial number, and conﬁguration settings. The information provided in the text ﬁle can provide assistance when conﬁguring, using, and troubleshooting Model 5154 modules.

Each time a Model 5154 detects that a USB ﬂash drive has been connected a text ﬁle will be created and stored. The ﬁle, named STATUS.TXT, will be stored in a folder named M5154 which is one level below the root of the USB ﬂash drive. If the folder is not already present it will be created. If a STATUS.TXT ﬁle is already present a new one will automatically be written over it.

The Model 5154 does not have a method of accessing the current date or time, i.e., no real-time clock. This limitation requires that a ﬁxed ﬁle creation date be used and 12/31/1979 was selected. However, the time stamp continues to advance in real time until a power cycle occurs.

The text contained in the STATUS.TXT ﬁle is organized into three sections. The following paragraphs provide a detailed explanation. Refer to Figure 7 for a display of a sample ﬁle.

STATUS.TXT File – [SYSTEM INFO]

Viewing Module Details

An associated Model 5190 Remote Ac-

STATUS.TXT ﬁle provides general information about this speciﬁc Model 5154 module.

cess Module can be used to directly view

The [SYSTEM INFO] section of the

ﬁrmware (embedded software), hardware, and conﬁguration details about a Model 5154 module. In addition, the Model 5154 incorporates a unique standalone method of providing these details. This is accom-

PRODUCT= identiﬁes the module’s product type. For the Model 5154 it will be listed as M5154. This information is provided as a conﬁrmation for situations where multiple STATUS.TXT ﬁles are being examined.

plished by the module creating a simple

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[SYSTEM INFO] PRODUCT=M5154 SERNUM=00212 MCUVER=2.3

VER=2.2

FPGA ADDRESS=4

Video Generator/Audio De-Embedder Module

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FPGAVER= identiﬁes the version of the logic chip (FPGA) ﬁrmware (embedded softw

are) that’s loaded into and operating in this speciﬁc module’s FPGA board. The FPGA creates the video images, processes the SDI signals, and handles the audio de-embedding.

[CONFIGURA SDIINPUT=BNC FORMA IMGDELA

TION=ON

MO SDIMODE=NORMAL DEEMBED=12

[OPTIONS] SDIINPUT=BNC FORMA IMGDELA

TION=OFF,ON

MO SDIMODE=NORMAL,REFONL DEEMBED=12,13,14,23,24,34,11,22

Figure 7. Example of STATUS.TXT ﬁle

TION]

T=AUTO

Y=1

,SFP

T=AUTO,LOCKED

Y=0,1,2,3,4,5,6,7

SERNUM= identiﬁes the factory-assigned serial number of this speciﬁc module. It will typically be in the form of a 5-digit base-10 number. If for some reason a serial number has not been factory assigned no number will display and the ﬁeld will be blank (empty).

MCUVER= identiﬁes the version of the microcontroller (MCU) ﬁrmware (embedded software) that’s loaded into and operating in this speciﬁc module’s MCU board. The microcontroller is the overall “boss” of the Model 5154, doing pretty much everything but the SDI-related tasks.

ADDRESS= identiﬁes the RS-485 data bus address of this speciﬁc module. The range is 1 through 16. This address is conﬁgured using four DIP switches located on the MCU board.

STATUS.TXT File – [CONFIGURATION]

The [CONFIGURATION] section of the STATUS.TXT ﬁle provides details on how the module is actually functioning at the time the ﬁle was created.

SDIINPUT= identiﬁes which physical SDI input on the module has been selected. BNC indicates that the Coaxial (BNC) SDI Input has been selected. SFP indicates that the optical SDI input has been selected.

FORMAT= identiﬁes which SDI Output Image Format/Rate Mode has been selected. AUTO indicates that the Auto Select (Follows Input) mode has been selected. LOCKED indicates that the Locked (Does Not Follow Input) setting has been selected.

IMGDELAY= identiﬁes the interval selected for the delay before the stored image is output. The range is 0 to 7 seconds. A setting of 0 indicates that there will be no delay. During the delay period the Model 5154 will output a video image with a solid-gray color.

MOTION= identiﬁes the status of the Moving Image Overlay function. OFF indicates that the Moving Image Overlay function is not active. ON indicates that the Moving Image Overlay function is active.

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SDIMODE= identiﬁes which SDI Mode has been selected. NORMAL indicates that a valid SDI signal connected to the selected SDI input will pass through to the module’s SDI output(s). REFONLY indicates that the selected SDI input will serve only as a timing reference signal. The internallygenerated image will always be sent to the SDI output(s).

DEEMBED= identiﬁes how audio signals are being de-embeded from the SDI input. The ﬁrst digit represents the SDI group that is supplying audio data to digital audio outputs 1 and 2. The second digit represents the SDI group that is supplying audio data to digital audio outputs 3 and 4.

STATUS.TXT File – [OPTIONS]

The [OPTIONS] section of the STATUS.TXT ﬁle is provided as a guide when creating a conﬁguration ﬁle (CONFIG.TXT) which will set the module’s conﬁguration. This information is provided in the STATUS.TXT ﬁle only as a reference and doesn’t play an active part in module conﬁguration or operation.

SDIINPUT= selects which physical SDI input on the module will be active. BNC selects the coaxial (BNC) SDI input to be active. SFP selects the optical SDI input to be active.

MOTION= selects the Moving Image Overlay function. OFF disables the Moving Image Overlay function. ON enables the Moving Image Overlay function.

SDIMODE= selects the SDI Mode function. NORMAL selects that a valid SDI signal connected to the selected SDI input will pass through to the module’s SDI output(s). REFONLY selects that the se- lected SDI input will serve only as a timing reference signal. In this latter mode, the internally-generated image will always be sent to the SDI output(s).

Conﬁguration Text File

FORMAT= selects the SDI Output Image

Format/Rate Mode. AUTO selects the Auto Select (Follows Input) mode. LOCKED selects the Locked (Does Not Follow Input) mode.

A text ﬁle can be created to specify how a Model 5154 should be conﬁgured. Saved on a USB ﬂash drive, the ﬁle must have a name of CONFIG.TXT and be stored in a folder directly under the root with a name of M5154. When the USB ﬂash drive

IMGDELAY= selects the interval for the delay before the stored image is output. The range is 0 to 7 seconds. A setting of 0 selects no delay. During the delay period the Model 5154 will output a video image

is plugged into a Model 5154 the ﬁle will automatically be read and the conﬁguration stored. Immediately after the ﬁle is read the STATUS.TXT ﬁle will be written to the M5154 folder. The contents of this ﬁle

with a solid-gray color.

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will reﬂect the conﬁguration that’s present after the contents of the CONFIG.TXT have been read. This will provide immediate feedback that the desired conﬁguration has be implemented.

The following paragraphs detail the conﬁguration choices. Refer to the Figure 8 for a sample ﬁle. This information is also shown in the [OPTIONS] section of the STATUS.TXT ﬁle, described previously in this guide.

The text lines that follow the [CONFIGURATION] heading should remain in the same order as shown in the example. (But technically they are not required to do so.) All conﬁguration items are not required to be present but for clarity it’s recommended that they are. The text is case sensitive and must follow the example.

SDIINPUT= selects which physical SDI input on the module will be active. There are two choices. BNC selects the coaxial (BNC) SDI input to be active. SFP selects the optical SDI input to be active.

FORMAT= selects the SDI Output Image Format/Rate Mode. There are two choices. AUTO selects the Auto Select (Follows Input) mode. LOCKED selects the Locked (Does Not Follow Input) mode.

MOTION= selects the status of the Moving Image Overlay function. There are two choices. OFF disables the Moving Image Overlay function. ON enables the Moving Image Overlay function.

[CONFIGURATION] SDIINPUT=BNC FORMAT=AUTO IMGDELAY=1 MOTION=ON SDIMODE=NORMAL DEEMBED=12

Figure 8. Example of CONFIG.TXT ﬁle

SDIMODE= selects the status of the SDI

Mode function.

There are two choices. NORMAL selects that a valid SDI signal connected to the selected SDI input will pass through to the module’s SDI output(s). REFONLY selects that the SDI input will serve only as a timing reference signal. The internally-generated image will always be sent to the SDI output(s).

DEEMBED= selects the audio sources for the four digital audio outputs. The ﬁrst digit represents which audio group from the SDI input is to supply audio data to digital audio outputs 1 and 2. The second digit represents the audio group that is used to supply audio data for digital audio outputs 3 and 4. The numbers 1, 2, 3, and 4 represent the SDI group. Each audio group supplies two audio pairs which represents four audio channels. The supported choices are 12, 13, 14, 23, 24, 34, 11, and 22. Figure 8 shows DEEMBED=12 which indicates that group 1 of the SDI input is supplying audio data to digital audio outputs 1 and 2 and group 2 is supplying audio data to digital audio outputs 3 and 4. Another example would be DEEMBED=23 which would select group 2 for digital audio outputs 1 and 2 and group 3 for digital audio outputs 3 and 4. A third example is DEEMBED=11 which is somewhat unique. It selects group 1 as the audio data source for digital audio

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outputs 1 and 2 as well as 3 and 4. This is a “mini” distribution ampliﬁer (DA) function for applications that only require support of group 1 audio data.

Operation

Power Up

Upon 12 volt DC power being applied to the Model 5154 the twelve front-panel LEDs will perform a “walk-through” test, with each LED lighting brieﬂy in sequence. Then the LEDs will light in patterns that represent the version numbers of the ﬁrmware (embedded software) ﬁles that are loaded into the module. Upon completion, the Power LED will light continuously. For normal operation to commence, prior to powering up the module ensure that a USB ﬂash drive is not plugged into the USB port on the front panel.

LED Indicators

A brief discussion of the Model 5154’s status LEDs will be covered in this section.

Front-Panel LEDs

As previously discussed, upon power up the twelve front-panel LEDs will light in a short sequence as an initialization test. Afterwards they are used to display the version number of the installed MCU and FPGA ﬁrmware. Refer to the Technical Notes section of this guide for details. Following the power-up sequence, the Power LED will light and remain lit.

The USB Activity LED will not light during normal Model 5154 operation. It will be lit continuously or in a pattern when a USB ﬂash drive is plugged into the USB port

on the front panel and ﬁle transfer activity is taking place. Details on how the LED functions when the USB port is active are covered in the Technical Notes section of this guide.

The SDI Input LED lights whenever a valid SDI signal is connected to the coaxial (BNC) or optical SDI input. (A conﬁguration choice selects whether the coaxial (BNC) SDI input or optical SDI input is active.)

The Data LED will light whenever data activity is taking place over the local RS-485 signal bus that is used to link the Model 5154 to a Studio Technologies’ Model 5190 Remote Access Module. The LED will ﬂash on and off each time data associated with this speciﬁc Model 5154 is present. Not all applications will include a connection to the data bus so it’s certainly possible that the Data LED may never ﬂash except during module power up.

The eight LEDs associated with the digital audio outputs will light whenever de-embedding of audio signals from the SDI input is taking place and signal is present on their associated audio channels. Details regarding the functioning of these LEDs are included later on in this section.

FPGA Board LEDs

Three LEDs are located on the back edge of the FPGA printed circuit board and serve as factory- and ﬁeld-diagnostic aids. Upon Model 5154 power up each LED will light for several brief durations with no speciﬁc meaning associated with them. Then the FPGA Status LED, located adjacent to the DIP switches, will light and remain lit. This indicates that the FPGA and MCU boards are correctly communicating.

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The LED located adjacent to the coaxial SDI input’s BNC connector will light whenever that input has been selected to be active and a valid SDI signal is connected. It will not light if a valid SDI signal is connected but the SDI input conﬁguration is not set to activate the coaxial (BNC) input.

The LED located adjacent to the “cage” that holds the SFP module will light if the optical SDI input has been selected and a valid SDI optical signal is connected. It will not light if a valid optical signal is connected but the SDI input conﬁguration is not set to activate the optical input.

A fourth LED is located near the front of the FPGA board. Called the FPGA Done LED, it lights whenever the logic device (FPGA) has loaded its ﬁrmware and is operating normally. This LED is provided only for factory troubleshooting use.

Initial SDI Output

After the power-up sequence has been completed the module’s SDI output will become active. (This will be both the coaxial (BNC) output and, if present, the optical SDI output.) If a valid signal is connected to the selected SDI input it will be routed to the SDI output. If a signal is not connected to the selected SDI input the internal SDI generator will supply a signal to the SDI output. In the latter case, what occurs after the Model 5154’s power-up sequence has taken place (taking about seven seconds) depends on the module’s conﬁguration. A solid-gray image may be output for up to seven seconds followed by the stored “720” or “1080” image. Or, if the solid-gray image has been disabled the stored image will immediately be present.

SDI Input and SDI Output

Depending on the exact Model 5154 version that has been installed and how it was conﬁgured an SDI signal can be connected to the coaxial (BNC) input or the optical input. When a signal that’s compatible with the Model 5154 has been connected the front-panel SDI Input LED will light. This indicates that the signal is being routed to the SDI output and the internal SDI generator is not active. SDI signals that comply with most HD (1.485 Gb/s nominal) and 3G (2.97 Gb/s nominal) standards are compatible. Refer to the Speciﬁcations section of this guide for a list of the supported standards.

The Model 5154 always provides an active SDI signal on the coaxial (BNC) output. Some Model 5154 versions also provide an optical output. This is accomplished at the factory by installing one of a variety of available SFP optical modules in the backpanel SFP “cage.” If an optical output is present it will always be active and provide an identical copy to the signal present on the coaxial (BNC) output.

If a valid SDI signal is not connected to the selected SDI input the stored image will be present on the coaxial (BNC) output and, if present, optical output. Depending on the stored format and rate values, the output will be either a 1280 x 720 pixel (“720”) or 1920 x 1080 pixel (“1080”) ﬁxed image.

Stored Images

When a valid signal is not connected to the selected SDI input, the module generates one of two ﬁxed images. The two images, one “720” and one “1080,” are stored in nonvolatile memory within the Model 5154.

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From the factory two images are pre-loaded. The two are quite different from one another with each having a unique photo background and overlaid text. The overlaid text provides support details on how alternate custom images can be created.

It’s expected that these pre-loaded images will be replaced with application-speciﬁc images. They can be easily created and what they consist of is limited only by one’s imagination. Refer to the Technical Notes section of this guide for details.

Transitions between External and Internal SDI Signals

This paragraph applies when the Model 5154 has been conﬁgured for normal SDI input mode. Whenever a valid SDI signal is connected to the selected Model 5154 input it will immediately be routed to the coaxial (BNC) and, if present, optical SDI outputs. The situation is a little different when a valid signal that’s been connected to the selected SDI input is subsequently removed. When the Model 5154 detects that an SDI input signal is no longer present the SDI output may switch to an image with a solid-gray color. Depending on the module’s conﬁguration this color may remain active for up to seven seconds. This solid-gray image provides a benign warning to users that the normal SDI source is no longer present.

During this time period it’s expected that any on-air use of the Model 5154’s output can be terminated without alerting viewers that anything is amiss. This solid-gray image can also be helpful as a marker when editing recorded video. After the conﬁgured interval has elapsed the internal generator will output either the “720” or “1080” stored image.

It’s also possible that the Model 5154 has been conﬁgured to not output the solidgray video signal. In this case, when the module detects that an SDI signal is no longer present on the SDI input, the SDI output will directly switch to the stored image.

It’s important to note that the Model 5154 does not perform a smooth transition when switching between an external SDI source and the internally-generated video signals. The same holds true when the internal color or image generator is active and then a valid source is connected to the selected SDI input. The SDI output does not stay “locked” during the transition as the circuitry in the Model 5154 was not designed to that level of sophistication. This shouldn’t cause an operational issue as the Model 5154 was not designed to be “on air” during those transitions; the changeover process is not seamless by design. One can assume that up to two seconds of interruption will occur during transitions but typically it will be considerably shorter.

Full-Time Video Generation

A conﬁguration selection allows the Model 5154 to act as a full-time video generator. In this case the selected SDI input will only be used as an external timing reference. The front-panel SDI Input LED will light whenever a valid signal is connected to the selected SDI input. But the SDI input source will only serve as a timing reference. Its video and related data (e.g., embedded audio) will not pass through to the SDI output(s). The stored video image will always be present on the SDI output(s).

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Output Format and Rate

When a valid signal is connected to the selected SDI input it will be routed to the SDI output at the identical format and rate of the source. When the SDI input is no longer present the internally-generated signal will become active and be routed to the SDI output. The format and rate of the internally-generated SDI signal will depend on parameters that are stored within the Model 5154. Whether these parameters can change depends on the conﬁguration of the module’s SDI output image format/ rate mode. Typically, the mode will be set for Auto Select which allows the Model 5154 to revise its parameters by following the format and rate of the connected SDI signal. This ensures that the Model 5154 can generate an SDI signal that matches the requirements of a facility or event. For the module to “learn” a new format and rate simply requires the momentary connection of an SDI signal that has the desired format and rate. As long as the signal is present on the selected SDI input for a minimum of ﬁve seconds the Model 5154 will store the “new” format and rate parameters in nonvolatile memory. The module will then use those parameters whenever the internal generator is active. The only caveat for the module to “learn” a new format/rate combination is that it must be a compatible combination. Refer to the Speciﬁcations section of this guide for a complete list.

There are some applications that will beneﬁt from the internally-generated SDI output signal always having a speciﬁc format and rate. In this case the SDI output image format/rate mode can be set for Locked. No matter what the format and rate of a connected SDI signal, the stored

parameters will not change. Changing the stored parameters would require the format/rate mode to be changed to Auto Select, an SDI signal with the desired format and rate be connected for a minimum of ﬁve seconds, and then the format/rate mode changed back to Locked.

Moving Image Overlay

The Model 5154 has the ability to overlay a moving image on top of the stored “720” and “1080” images. A conﬁguration setting selects whether the moving image overlay will be active. The moving image, a box that’s red in color, slowly moves around and on top of whatever stored image is present on the SDI output. The color, size, and rate of motion of the “box” are ﬁxed in the FPGA’s ﬁrmware (embedded software) and can’t be altered.

The moving image is provided speciﬁcally so that users who are “downstream” from the Model 5154’s SDI output are assured that the “720” or “1080” image they are viewing is active. And, just to clarify, if a signal is present on the Model 5154’s selected SDI input it will be passed on to the coaxial (BNC) and, if present, optical SDI outputs. The moving image will never overlay an input signal—it can only overlay on top of the stored image.

Audio De-Embedding

The Model 5154 will de-embed two audio groups from the connected SDI input signal. These groups each consist of two stereo audio pairs providing a total of eight audio channels. Exactly how the module de-embeds audio depends on how the module has been conﬁgured. There are eight conﬁguration choices.

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Note that two of the eight choices provide DA (distribution ampliﬁer) functions, deembedding only one group from the SDI input and routing those two audio pairs to all four of the digital audio outputs. Refer to the [OPTIONS] section of Figure 7 to review a list of de-embedding conﬁguration choices.

The de-embedding process does not alter an input SDI signal. It will pass through, unaltered, to the coaxial (BNC) and, if present, optical outputs.

There are eight signal present status LEDs associated with the eight audio output channels. (Two audio channels are associated with each of the four AES3-compatible digital audio outputs.) A signal present LED will light when its associated audio channel has a signal level that equals or exceeds –40 dBFS. This level is 20 dB below the nominal audio level of –20 dBFS for SMPTE applications. For EBU applications it will light 22 dB below the nominal –18 dBFS level.

As expected, audio can only be deembedded when a valid source has been connected to the coaxial (BNC) or optical SDI input. If no signal is present on the SDI input, or the connected SDI source doesn’t have the required audio group data present, the four digital audio outputs will remain active but no audio data will be present. Actually, audio data will be present in the AES3 data “stream” but it will consist of all “0”s. A device connected to the module’s digital audio outputs will recognize them as being valid AES3 signals but with audio levels at their technical minimum.

Technical Notes

Bitmap Image File Requirements

The Model 5154 allows two bitmap (.bmp) images to be stored and output when an SDI input signal is not present. One image has a pixel size of 1280 x 720 while the other has a pixel size of 1920 x 1080. To be stored with the Model 5154 the ﬁles must be FAT32-compatible and have names of img720.bmp and img1080.bmp, respectively.

The reason two ﬁles are required is simple: the Model 5154 does not have the ability to digitally “scale” a 1920 x 1080 image down to 1280 x 720. But it does have the ability to store two unique ﬁles. Most users will create a single image using a personal-computer graphics program and then save it in the two required formats. So when the Model 5154 generates either of the two images (“720” or “1080”), a user will see what appears to be an identical image. But there is no reason why the two images (“720” and “1080”) have to be based on the same original graphics. Studio Technologies chose to create two different “720” and “1080” bitmap ﬁles that are pre-loaded in the Model 5154 at the time of manufacture. They feature two unique background images with text highlighting the main requirements for updating them.

While the two bitmap ﬁles (img720.bmp and img1080.bmp) are “standard” in the sense that they are FAT32-compatible and have the extension .bmp, they must adhere to one important requirement that not all personal-computer graphics programs support. Their DIB (bitmap information header) must be a BITMAPINFOHEADER type. The Microsoft Paint and Adobe Photoshop

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applications will create .bmp ﬁles that meet this requirement. But some other programs may produce non-compatible ﬁles. For example, the open-source GIMP graphics program is very good but appears to save .bmp ﬁles only as a BITMAPV4HEADER type. These are not compatible with the Model

5154. The possibility that various .bmp ﬁles will have different header types doesn’t seem to be an issue for displaying them successfully with most personal-computer programs. This is most likely due to the PC’s large code space allowing essentially all the possible header types to be supported. But the Model 5154, due to its target application, has limitations in the ﬁle support area. (For additional background information, please refer to the Wikipedia online entry that discusses the structure of .bmp ﬁles.)

A compatible 1280 x 720 (“720”) .bmp ﬁle created using Microsoft Paint or Adobe Photoshop will have a size of approximately

2.63 MB; a 1920 x 1080 (“1080”) .bmp ﬁle will have a size of approximately 5.63 MB. The actual size of the ﬁles when created in Microsoft Paint should be 2,764,854 bytes and 6,220,854 bytes, respectively. When created in Adobe Photoshop, the ﬁle sizes should be 2,764,856 bytes and 6,220,856 bytes, respectively. (Why are they each two bytes in size different? Who knows! But both use the appropriate BITMAPINFOHEADER DIB type.)

Bitmap Image Update Procedure

It’s expected that the Model 5154’s bitmap (.bmp) ﬁles associated with the custom “720” and “1080” images will always be updated to best serve speciﬁc applications. This will typically take place soon after a Model 5154 has been installed. (While the

pre-loaded images are nice, they aren’t really appropriate for actual active applications.) There’s no problem changing the ﬁles whenever the application warrants alternate images. The module has the ability to automatically load revised ﬁles by way of its USB interface. The Model 5154 implements a USB host function that directly supports connection of a USB ﬂash drive.

Updating the Model 5154’s “720” and “1080” images is quite simple but requires some care. The process begins by preparing a USB ﬂash drive. The ﬂash drive doesn’t have to be empty (blank) but must be in the personal-computer-standard FAT32 format. Save the new image (.bmp) ﬁles in the root directory. Their names must be img720.bmp and img1080.bmp. Typically both .bmp ﬁles will be updated at the same time. But there’s no requirement to do so. Individual ﬁles can be updated whenever desired. Simply copy the desired ﬁle or ﬁles to the root directly on the USB ﬂash drive. Be certain that there are no Model 5154 ﬁrmware ﬁles (m5154.s19 and m5154.bit) present on the USB ﬂash drive during this process.

As previously reviewed in this guide, the 1280 x 720 image must have a ﬁle name of img720.bmp; the 1920 x 1080 image must have a ﬁle name of img1080.bmp. Also ensure that both have the DIB header type BITMAPINFOHEADER so that they can be recognized correctly by the Model 5154.

To install the new image ﬁles:

1. Power down the Model 5154 module.

2. Insert the prepared USB ﬂash drive into

the module’s USB port.

3. Apply power to the module.

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4. The module will go through its powerup LED sequence and normal operation will begin. At about the same time that normal operation starts the new .bmp ﬁles will begin to load, one after the other. The USB Activity LED on the module’s front panel will ﬂash while the loading process is taking place. Loading both .bmp ﬁles will take approximately

6.5 minutes. (Loading only the img720. bmp ﬁle takes approximately 2 minutes; loading only the img1080.bmp ﬁle takes approximately 4.5 minutes.) Once the loading process has been completed the USB Activity LED will change from ﬂashing to being lit continuously.

Note: If the module is currently output-

ting one of the stored images and a new image of the same type (“720” or “1080”) has just completed loading, the output will automatically change to the new image. (It’s possible that a few seconds of a solid color could be output during the transition from the old image to the new image.)

5. Power down the module.

6. Remove the USB ﬂash drive from the module’s USB port.

7. Power up the Model 5154 module. It will go through its normal power-up LED sequence and begin operation. It will use the updated images whenever the internal SDI generator is active.

It’s possible that during the update process any LEDs located on the USB ﬂash drive may light steadily or ﬂash with varying patterns. These actions are not signiﬁcant to the Model 5154’s update procedure. (The status LEDs on various USB ﬂash drives seem to behave in different ways so there are no universal patterns that can be identiﬁed.)

Firmware Update Procedure

It’s possible that updated versions of the ﬁrmware (embedded software) that runs the Model 5154 will be released to add features or correct issues. The module has the ability to automatically load revised ﬁles by way of its USB interface. The Model 5154 implements a USB host function that directly supports connection of a USB ﬂash drive. The Model 5154 uses two ﬁrmware ﬁles to perform its functions. One ﬁle is used by the microcontroller integrated circuit (MCU) and has a ﬁle name of m5154.s19. The microcontroller is the overall “boss” of the Model 5154, doing pretty much everything but the SDI-related tasks. The other ﬁrmware ﬁle is used by the logic chip (FPGA) and has a name of m5154.bit. This ﬁrmware, running in the FPGA, creates the video images, processes the SDI signals, and handles audio de-embedding. The factory will provide updates of these ﬁrmware ﬁles if it’s warranted for your speciﬁc Model 5154 module.

To update the Model 5154’s ﬁrmware is quite simple but requires careful execution. The process begins by preparing a USB ﬂash drive. The ﬂash drive doesn’t have to be empty (blank) but must be in the personal-computer-standard FAT32 format. Save the new ﬁrmware ﬁles in the root directory. Their names must be m5154.s19 and m5154.bit. Be certain that any custom image ﬁles (img720.bmp and img1080.bmp) are not present on the USB ﬂash drive during this process.

Studio Technologies will supply the MCU and FPGA ﬁles inside individual .zip archive ﬁles. While the ﬁrmware ﬁle inside of each zip ﬁle will adhere to the naming convention required by the Model 5154, the name of the zip ﬁle itself will include

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the version number. For example, a ﬁle named m5154v1r2MCU.zip would indicate that version 1.2 of the MCU ﬁrmware (m5154.s19) is contained within this zip ﬁle; a ﬁle named m5154v1r1FPGA. zip would indicate that version 1.1 of the FPGA (m5154.bit) is contained within this zip ﬁle. The version numbers of the ﬁles that are copied to the USB ﬂash drive should be noted for later reference. Once the new ﬁles are loaded into a Model 5154 the module’s front-panel LEDs should be used to conﬁrm that the correct ﬁrmware versions have been successfully installed.

Note: The ﬁrmware update procedure itself will not erase or overwrite bitmap image ﬁles that are already saved in the Model 5154. However, this requires that the custom image ﬁles (img720.bmp and img1080.bmp) are not present on the USB ﬂash drive.

6. The module will run a “boot loader” program that will immediately load the new MCU (m5154.s19) ﬁle. This takes approximately eight seconds. Once the ﬁle is loaded the module will perform a normal power-up sequence with the microcontroller using its newly-loaded MCU ﬁrmware.

7. After the power-up sequence has been completed the module will begin operation. It will process video and audio as well as checking for an FPGA (m5154.bit) ﬁle on the USB ﬂash drive. If it doesn’t ﬁnd this ﬁle normal operation will continue. If it locates this ﬁle it will begin to load it from the USB ﬂash drive. In that case, some Model 5154 functions will halt, including reading changes to the conﬁguration switches. As an indication that the ﬁle transfer is under way, the USB Activity LED will ﬂash on and off.

To install the ﬁrmware ﬁles:

1. Power down the Model 5154 module you intend to upgrade.

2. Ensure nothing is inserted into the USB port on the module. Power up the module and “read” the version numbers of the currently-installed MCU (m5154. s19) and FPGA (m5154.bit) ﬁles. Write these numbers down for reference. The next section of this guide details how to “read” the installed ﬁrmware version levels.

3. Power down the Model 5154 module.

4. Insert the prepared USB ﬂash drive into the module’s USB port.

5. Apply power to the Model 5154 module.

8. The process of loading the FPGA (m5154.bit) ﬁle will take approximately 90 seconds to complete. When the ﬁle loading process is complete you will see the module’s front-panel USB Activity LED change from ﬂashing to being continuously lit. At that time the Model 5154’s logic chip (FPGA) will reboot and run under the newly-loaded ﬁrmware.

9. Power down the module.

10. Remove the USB ﬂash drive from the module’s USB port.

11. Power up the Model 5154 module and it will begin operation using the updated MCU and FPGA ﬁrmware. The version numbers of the installed MCU and FPGA ﬁrmware should be “read” by way of the front-panel LEDs. Compare and conﬁrm that these numbers match those from the zip ﬁle names that were provided by the factory.

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Note: It’s possible that during the update process any LEDs located on the USB ﬂash drive may light steadily or ﬂash with varying patterns. These actions are not signiﬁcant to the Model 5154’s ﬁrmware update process. (The status LEDs on various USB ﬂash drives seem to behave in different ways so there are no universal patterns that can be identiﬁed.)

Identifying the Installed Firmware Versions

As previously discussed in the Conﬁguration section of this guide, a ﬁle is automatically written to a USB ﬂash drive whenever it is plugged into the Model 5154. This ﬁle, named STATUS.TXT, provides details of the Model 5154’s ﬁrmware (embedded software), hardware, and conﬁguration parameters. These parameters include the version numbers of the MCU and FPGA ﬁrmware that are stored in the module. This information is also available when using a Model 5190 Remote Access Module with the Model 5154. A third method is also available to determine the two ﬁrmware version

numbers. The Model 5154’s status LEDs are used during the power-up sequence to display the numbers in a cryptic but effective manner. While the display method is a bit unique, once a user gets accustomed to what’s actually happening during power up it should be fairly straightforward to “read” the version numbers.

To identify the installed ﬁrmware versions:

1. Power up the Model 5154. The LEDs

will perform a “walk-through” test, with each LED brieﬂy lighting in a sequence.

2. Next the Power LED will light and

remain lit.

3. Very shortly after the Power LED lights

the USB Activity LED will light to indicate that the MCU ﬁrmware version is being displayed by the eight Digital Audio Inputs Signal Present LEDs. The top row of four LEDs will display the major version number with a range of 1-4. The bottom row of four LEDs will display the minor version number with a range of 0 (no LED lit) to 4. Refer to Figure 9 for details.

Major Version Number

1 2 3 4

O  O O

O O  O

.1 .2 .3 .4

Minor Version Number

(No LED lit indicates .0)

Figure 9. Detail of front panel showing the LEDs that display the MCU and FPGA ﬁrmware versions. In this example, the version shown is 2.3.

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4. After a few seconds the USB Activity LED will go out and the FPGA ﬁrmware version will be displayed by the eight Digital Audio Inputs Signal Present LEDs. The top row of four LEDs will display the major version number with a range of 1-4. The bottom row of four LEDs will display the minor version number with a range of 0 (no LED lit) to 4. Refer to Figure 9 for details.

5. After a ﬁnal short pause the LEDs will begin performing in their normal operating manner. The Power LED will remain lit. The USB Activity LED will only be active when a USB ﬂash drive is inserted and ﬁle transfer activity is taking place. The SDI Input LED will light whenever a valid SDI signal is connected to either the coaxial (BNC) input or the optical input, depending on the module’s capability and conﬁguration setting. The Data LED will light whenever local data is received via the RS-485 data bus from a Studio Technologies’ Model 5190 Remote Access Module. Digital audio signals being de-embedded will have their associated Digital Audio Outputs Signal Present LEDs will light whenever their signal levels are –40 dBFS or greater.

Once a user gets accustomed to what’s actually happening during power up it should be fairly straightforward to “read” the version numbers.

SFP Module Flexibility

The Model 5154 was designed to allow an MSA-compliant SFP optical module to be installed at the factory. Optical modules are available with a range of input and output capabilities to meet the needs of various applications. For maximum ﬂexibility the SFP mating connector and associated

“cage” on the Model 5154’s FPGA circuit board were implemented to meet the electrical and mechanical requirements of the MSA SFP standard. The MSA SFP standard was originally developed for use with optical data (Ethernet) modules. It has also become popular for use with SFP modules that support SMPTE-compliant SDI signals.

It’s interesting to note that several companies offer non-optical SFP modules that support the MSA SFP standard as well. For example, Embrionix of Canada offers a wide range of specialized SFP modules. These include coaxial SDI input and output modules that use DIN 1.0/2.3 and HD-BNC connectors. In addition, they offer SFP modules that provide an HDMI® output. Several of these modules have been installed and tested in Model 5154 modules at the factory and acceptable performance was conﬁrmed. It’s possible that special applications could beneﬁt from the features provided by installing these non-optical SFP modules in a Model 5154. For further dialog about this topic please contact Studio Technologies technical support.

USB Port Capabilities

The USB port, accessible on the Model 5154’s front panel, is provided for use in only a few speciﬁc tasks. While it implements a high-speed USB host interface, it is not intended for general-purpose use and does not support connection with mass-storage devices, personal computers, printers, etc. It is intended only for use with USB ﬂash drives. These devices can contain image and ﬁrmware ﬁles that are intended for loading into the Model 5154. Details on these ﬁle-transfer functions can be found in other sections of this guide.

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Speciﬁcations

SDI Compatibility, Supported Formats and Rates: HD-SDI per SMPTE ST 292:2011:

720p: 50, 59.94, 60 1080i: 50, 59.94, 60 1080p: 23.98, 24, 25, 29.97, 30 1080psf: 23.98, 24, 25

3G-SDI Level A per SMPTE ST 424:2006 and ST 425:2011:

1080p: 50, 59.94, 60 SD-SDI per SMPTE® ST 259:2008:

Not supported

Digital Audio Outputs: 4 (2-channel) Type: AES3, unbalanced, 75 ohms (formerly

AES3id)

Sample Rate: 48 kHz Bit Depth: 24 Nominal Level: –20 dBFS or –18 dBFS Timing: asynchronous, no external timing

reference input provided

Signal Present LEDs: lights at ≥ –40 dBFS

Remote Control Data Interface: RS-485 115.2

Kb/s, 8-1-N; compatible with Studio Technologies’ Model 5190 Remote Access Module

Audio De-Embedding into SDI:

Per SMPTE ST 299-1-2010

Coaxial (BNC) SDI Input and Output: Type: unbalanced Impedance: 75 ohms Level: 800 mV p-p, nominal

Optical Input (optional): Compliance: SMPTE ST 297:2006 (as applicable) Fiber Type: single mode Wavelengths Supported: 1250 to 1650 nm Receive Sensitivity: –17 dBm, nominal @

2.97 Gb/s

Maximum Input Power: –3 dBm, nominal

Optical Output (optional): Compliance: SMPTE ST 297:2006 (as applicable) Fiber Type: single mode Wavelength: 1310 nm (FP laser) or CWDM (DFB

laser), as per order

Launch Power: –3 dBm, nominal Typical Fiber Interconnect Length: 10 km

minimum

Connectors: Coaxial SDI Input and Output: BNC, 3G-SDI

optimized, gold plating on center pin, per IEC 61169-8 Annex A

Optical Module: MSA-compliant SFP Digital Audio Output: 1, 9-pin D-subminiature

female (DE-9F); requires installer-provided DE-9M, 4-40 hardware

DC Input/Data: 1, 4-position male header. Refer to Appendix B for mating connector details.

Power Requirement: 12 volts DC nominal, 400 mA max; acceptable range 10-18 volts DC, 480 mA max at 10 volts

Dimensions (Overall):

3.75 inches wide (9.5 cm)

1.69 inches high (4.3 cm)

2.30 inches deep (5.8 cm)

Mounting: requires custom implementation; no mounting method provided. Refer to Appendix C for details.

Weight: 0.2 pounds (91 g)

Speciﬁcations and information contained in this User Guide subject to change without notice.

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Appendix A–Model 5154 Versions

The following list describes the available Model 5154 versions along with their respective order codes. List is current as of the publication date of this guide.

Version Order Code Figure

Model 5154 Video Generator/Audio De-Embedder Module M5154 A

Model 5154 Video Generator/Audio De-Embedder Module with Optical Input M5154-05 B

Model 5154 Video Generator/Audio De-Embedder Module with Optical Input/Output (1310 nm) M5154-02 C

Model 5154 Video Generator/Audio De-Embedder Module with CWDM Optical Output M5154-03X* B

Model 5154 Video Generator/Audio De-Embedder Module with Optical Input/CWDM Output M5154-04X* C

* For order codes -03X and -04X, X = the standard CWDM wavelength letter code, e.g., L=1490 nm.

Figure A (No SFP)

Figure C (Transceiver SFP)

Figure B (Optical-Output-Only SFP)

Figure D (Optical-Input-Only SFP)

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Appendix B–DC Input/Data Interconnection Details

The required mating receptacle is from the TE Connectivity (formerly AMP) MTA-100 series of IDC (insulation displacement) connectors. This series was selected because of its lowcost and wide range of offerings. Separate connectors are offered for compatibility with 22, 24, 26, and 28 AWG (American Wire Gauge) insulated wire. The connector color indicates its AWG-compatibility. Unfortunately, with ﬂexibility can come some confusion. The MTA-100 offers a number of different connectors that will work with the DC input/data headers. Before obtaining receptacles it’s important to determine two things: wire gauge and wiring arrangement. For this application 22 AWG is recommended.

DC Input/Data

• For 22 AWG wire this receptacle (red in color) is recommended: TE Connectivity (AMP) 3-643813-4, closed-end type

Digi-Key part number A31108-ND

Mouser part number 571-3-643813-4

TE Connectivity (AMP) 3-644540-4, feed-through type

Digi-Key part number A31122-ND

Mouser part number 571-3-644540-4

Tools for Connecting Wires to the Mating Receptacles

For applications where just a few Model 5100-Series modules are going to be installed a manual IDC termination tool is recommended. While requiring a steady hand to achieve reliable wire connections to the mating receptacles, the price, at less than US$40, is fairly reasonable:

• “T Handle” termination hand tool: TE Connectivity (AMP) 59803-1

Digi-Key part number A9982-ND

Mouser part number 571-598031

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Appendix B–Interconnection Details, continued

Tools for Connecting Wires to the Mating Receptacles, continued

For applications where a larger number of Model 5100-Series modules are going to be installed it’s worth considering a semi-automatic termination tool. The recommended tool consists of a handle assembly and crimp die for MTA-100 receptacles. The total price for both, approximately US$300 as of this writing, is steep but the performance that this tool assembly provides is excellent. We feel that the time savings and reliability of the connections may warrant the price when many terminations are going to be made:

• Handle Tool, Pistol Grip:

TE Connectivity (AMP) 58074-1 Digi-Key part number A2031-ND

Mouser part number 571-580741

• Crimp Head Die Assembly for MTA-100 Receptacles:

TE Connectivity (AMP) 58246-1 Digi-Key part number A1998-ND

Mouser part number 571-58246-1

Headers on the Model 5154 Printed Circuit Board

The actual part number of the header connectors that are soldered into the Model 5154’s printed circuit board is provided in this section. But do not order this part number with the intent of interconnecting signals with the Model 5154! We are providing this detail only so that interested technical personnel can have the full background on the Model 5154’s interconnect system. The appropriate mating receptacle is detailed in a previous section of this Appendix.

• DC Input/Data:

TE Connectivity (AMP) 2-644486-4 (DO NOT ORDER THIS NUMBER!)

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Appendix C–Model 5154 Front Panel and Printed Circuit Board (PCB) Dimensions

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Studio Technologies 5154 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Introduction

Installation

Operation

Technical Notes

Appendix A–Model 5154 Versions

Appendix B–DC Input/Data Interconnection Details

Appendix C–Model 5154 Front Panel and Printed Circuit Board (PCB) Dimensions