GRASS VALLEY TRITON TTN-BAV-0808 User manual

MANUAL PART NO. 071
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8242
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00 R
ev. 0
MARCH 18, 2003
INSTALLATION MANUAL
TRITON routing switcher
Multimedia Router 8x8
Product model no. TTN-BAV-0808
the most watched worldwide

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Headquarters
Thomson Broadcast Systems
17 rue du Petit Albi -BP 8244
95801 Cergy Pontoise Cedex
FRANCE
Thomson Broadcast and
Media Solutions, Inc.
P.O. Box 599000
Nevada City, CA 95959-7900
USA
Copyr
ight 2003 Thomson Broadcast and Media Solutions, Inc. All rights reserved. Grass Valley, Jupiter, and
Triton are trademarks of Thomson. Specifications subject to change without notice.
For customer service, please call [phone]. For comments or questions concerning this manual, please
contact: Technical Publications Department, P.O. Box 30816, Salt Lake City, Utah 84130 USA. Phone: (801)
972-8000. Fax: [phone]. Email: [email protected]

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Contents
Electromagnetic Radiation Notice v
Hardware Warranty and Software License vi
Parts and Service vi
Revision history vii
1General 1
1.1 Specifications 1
1.1.1 Video Specifications 1
1.1.2 (Optional) Audio Specifications 2
1.1.3 Panel Specifications 2
1.1.4 General Specifications 2
1.2 Connection drawing 2
2Power connection 3
3Connecting the BAV-0808 to your PC 3
3.1 Selection of router level 3
3.2 Pin-out of RS-232 connector 3
3.3 Maximum cable length 3
4NCB connection 4
4.1 Several routers in one system 4
4.2 Connecting control panels 4
4.3 Pin-out and cable type 5
4.3.1 RJ45 connectors 5
4.3.2 5-pin DIN connectors 5
4.3.3 RJ45 to 5-pin DIN converter 6
4.4 Control bus structure 6
4.5 Maximum distance between NCB devices 6
4.6 Control Bus configuration notes 6
5Router configuration 8
5.1 Router level 8
5.2 Video Switch-timing mode 8
5.3 Disconnect Allowed 9
5.4 Power up mode 9
5.5 Programming of restrictions 10
6Connecting signal cables to the BAV-0808 11
6.1 Connecting Video Signals 11
6.2 Connecting Audio Signals 11
6.2.1 Unbalanced audio signals on BAV-0808 outputs 11

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7Control panel operation 12
7.1 Front panel drawing 12
7.2 PANEL ENABLE button 12
7.3 V/A TOGGLE button 12
7.4 Operating crosspoints 12
7.5 TAKE function 13
8Programming of SALVOS (Pre-sets) 13
9Control and connection of Triton systems, interface protocol 16
9.1 Important notes regarding the Triton Control Protocol 16
9.1.1 Binary Code 16
9.1.2 Echo 16
9.1.3 RS-422 Matrixes 16
9.1.4 Timeout 16
9.2 Basic principles 16
9.2.1 Example: A single unit with no NCB connected 16
9.2.2 Example: Several units connected by NCB 17
9.3 RS232 17
9.4 NCB 17
9.5 Commands 18
9.5.1 Audio crosspoint set 18
9.5.2 Audio crosspoint set acknowledge 18
9.5.3 Video crosspoint set 18
9.5.4 Video crosspoint set acknowledge 19
9.5.5 Crosspoint status request 19

v
Electromagnetic Radiation Notice
The following information is given to note compliance with the United States Government Federal Communications
Commission (FCC) Rules (47 CFR Part 15) designed to limit interference to radio and TV reception. The ruling establishes
measurement procedures and frequency criteria for Class A computing devices (commercial and industrial applications) with
the following conduction and radiation limits:
CLASS A COMPUTING DEVICE: CONDUCTION LIMIT (Part 15.812)
Frequency (MHz) Maximum RF Line Voltage (uV)
0.45 -1.6 1000
1.6 -30 3000
CLASS A COMPUTING DEVICE: RADIATION LIMIT (Section 15.810)
Frequency (MHz) Distance (meters) Field Strength (uV/m)
30 -88 30 30
88 -216 30 50
216 -1000 30 70
The policy of Thomson is one of continual development and improvement. For that reason Thomson uses components and
manufacturing techniques that provide the current state-of-the-art suppression of electromagnetic radiation. This equipment, in
production before October 1, 1981, has not been tested to the above listed measurements. However, equipment such as this
delivered after October 1, 1983 will have the measurements on record at the factory. Therefore, in compliance with the stated
FCC Regulation, the following information is provided for the user:
NOTE
Interference to Radio Communications
This equipment generates, uses, and can radiate radio frequency energy and if not installed and used
in accordance with the instruction manual, may cause interference to radio communications. As
temporarily permitted by regulation it has not been tested for compliance with the limits for Class A
computing devices pursuant to Subpart J of of Part 15 of FCC Rules, which are designed to provide
reasonable protection against such interference. Operation of this equipment in a residential area
is likely to cause interference in which case the user at his own expense will be required to take
whatever measures may be required to correct the interference.

vi Hardware Warranty and Software License
Please contact your local Thomson representative for
hardware warranty and software license information.
Parts and Service
Thomson maintains a full stock of replacement parts available for immediate shipment.
NORTH AMERICA PARTS AND SERVICE
Please call toll-free 1-800-547-8949.
You will be switched automatically to the parts and service representative nearest you.
For email correspondence: broadcast-[email protected]
Internet: http://www.thomsongrassvalley.com
INTERNATIONAL PARTS AND SERVICE
Contact your Thomson representative.

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Revision history
Current revision of this document is the uppermost in the table below.
Revision Replaces
Date Change Description
0 -18/03/03
Initial Revision

BAV-0808 Rev. 0
1
1General
The Media-8 is an RGBHV Analogue Video + Stereo Analogue Audio (optional) 8x8 Router for
Multimedia applications. The Video Router has seamless tri-step switching, or vertical interval switching,
and a large signal bandwidth, which provides high performance up to 1600x1200 resolution. The Audio
Router has balanced inputs and outputs, and audio breakaway allows selecting audio independent from
video. A preset editor allows the user multi-crosspoint settings in one operation, and multi panel interface
allows control of the router from up to 20 different sites.
This top of the line Router provides high performance circuits in SMD technology, with no discernible
signal degradation. The built-in RS-232 interface allows the user to control the router via the Triton
Router Control System PC software with many operational features. The control bus allows linking of the
unit to other Triton Routers and Control Panels, all designed to suit the needs of the user.
The following formats may be configured (stereo audio is optional):
8x8 RGBHV + AA
1.1 Specifications
1.1.1 Video Specifications
Frequency response: 0-250MHz / -3dB; 0-400MHz / -6dB
Differential gain: typical 0.1% (3.58/4.43MHz)
Differential phase: typical 0.2° (3.58/4.43MHz)
Crosstalk: < -55dB (3.58/4.43MHz)
Video S/N Ratio: typical 70dB
Bar tilt: < 0.1%
Lum. Non-linearity: < 0.1%
Number of inputs: 8
Number of outputs: 8
Impedance: 75 ohms
Return loss: typical 38dB
Max signal: 2 Vp-p
Coupling: DC
DC offset: typ. 5mV
Propagation delay: 5ns ± 1ns
Connector: BNC
Switching: Seamless w/ variable delay 2-5s, or VIT,
Selectable via DIP-switches
PAL/NTSC selection on DIP-switches
VIT loop

BAV-0808 Rev. 0
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1.1.2 (Optional) Audio Specifications
Frequency response: 20Hz-100kHz ± 0.1dB
Crosstalk: > -100dB
Click noise: < 80dBqp
THD+N: < 0.003%
SNR: > 100dB ref. to 0db 20Hz-20kHz
Number of inputs: 8 (Stereo) true balanced
Input impedance: > 10k ohms
CMRR: > 75dB
Max. Input level: + 25dBu
Number of outputs: 8 (Stereo) true balanced
Output impedance: 66 ohms
Connector: DB25 female
1.1.3 Panel Specifications
Salvos: Programmable/executable on panel
1.1.4 General Specifications
AC power: External power supplies 100 -260 VAC
DC power: ±15V, connector DB9 male,
Equipped with 2x DB9 connectors
Max power consumption: <20W
Dimensions: 483 x 132 x 35 mm (19”, 3RU)
1.2 Connection drawing Configuration switches
RGBHV inputs VIT conn. NCB1Audio inputs
RGBHV outputs Power conn.2RS-232 port Audio outputs
1Network Control Bus. The protocol of this bus is equal, and compatible to the MIDI bus protocol.
2BAV-0808 has 2 power connectors, allowing redundant power supplies.
SN.

BAV-0808 Rev. 0
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2Power connection
Do not connect mains to the desktop power supply before connecting the power supply to the
router.
Connect the DB9 female connector from the desktop power supply to the main unit. Tighten the screws to
assure a proper contact. To connect mains to the desktop power supply you need a mains cord with IEC
320 connector.
The BAV-0808 is normally delivered with the desktop power model AC ±15V / 30W. Upon customer
request, BAV-0808 can also be delivered with DC ±15V / 30W, which may be fed by a 36 –72 VDC
mains power source. A Frame mounted power supply solution is also available.
Please refer to the latest Triton Product Catalogue for power supply types, or call Thomson Grass Valley
for this information.
If any third party power supply is used the BAV-0808 router requires ±15V DC with a minimum current
of 650mA. The following pin-out is used on the DB9 male power connector:
Pin 1 0V
Pin 4 +15V
Pin 8 -15V
3Connecting the BAV-0808 to your PC
For connection to a PC with Triton Router Control System, the RS-232 interface is used. The RS-232 port
on all Triton devices uses the standard DCE pin-out, see pin-out table under 4.3.
A standard modem cable can be used for connecting the router to the PCs serial port.
3.1 Selection of router level
The router level depends on the system configuration the router is going to work with. See chapter 5 for
more information. All routers are delivered with default level 1. Triton Router Control System offers the
control of up to 16 different routers or combinations of routers.
3.2 Pin-out of RS-232 connector
The DB9 female connector for the RS-232 port has the following pin-out:
Pin 2 Tx
Pin 3 Rx
Pin 5 GND
3.3 Maximum cable length
The maximum cable length for an RS-232 connection is per definition 15m. Longer distances can be
installed depending on the environmental conditions of the installation site. It is the responsibility of the
installer / user to secure a proper installation of the RS-232 connection.

BAV-0808 Rev. 0
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4NCB connection
Via the Network Control Bus system several routers and control panels can be interconnected.
The standard MIDI interface is used on all NCB control ports. The BAV-0808 router utilises RJ45
connectors for connecting to the NCB. This means that when you connect your BAV-0808 router to other
Network devices, with 5-PIN DIN connectors, an RJ45 to 5-pin DIN interface is necessary.
This converter can be ordered from Thomson Grass Valley.
The NCB system allows connection of up to 16 routers with different levels on the same bus. Control
panels dedicated to work with a specific router must be configured to the same level as the router. Several
panels can work together with one specific router. Up to 16 single routers or combinations of routers can
be controlled from the Triton Router Control System. The NCB system and all RS-232 ports interchange
the system status.
4.1 Several routers in one system
The NCB system allows the interconnection of up to 16 routers with different levels in one system. A
combination of routers working married counts as one level. This might for example be 1 audio router + 1
video router working as an audio follows video system or 3 video routers working as an RGB (YUV)
system. The routers in such a constellation must be configured to the same level.
4.2 Connecting control panels
To get a control panel working with a specific router, configure the control panel to the same level as the
router. Several panels can be configured to control the same router. The Triton panels can control 2 levels
with breakaway function. If it is necessary to control more levels with breakaway an additional panel must
be used. Panels can also be connected to a router via the RS-232 interface. Please refer to your
control panel manual for installation.

BAV-0808 Rev. 0
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4.3 Pin-out and cable type
4.3.1 RJ45 connectors
On some Triton devices, including the BAV-0808, the NCB cable can be connected to RJ-45 connectors.
The following pin-out is used:
Pin 1 = Not Connected
Pin 2 = Not Connected
Pin 3 = Not Connected
Pin 4 = data
Pin 5 = data
Pin 6 = Not Connected
Pin 7 = Not Connected
Pin 8 = Not Connected
4.3.2 5-pin DIN connectors
However, the pin-out of most Network Control Bus ports follows the standard MIDI specification. A 1:1
cable with 5pin DIN connector is used. The following pin-out is used:
Pin 1 = Not Connected
Pin 2 = shield
Pin 3 = Not Connected
Pin 4 = data
Pin 5 = data
The standard MIDI specification recommends the use of shielded twisted pair cable types for
interconnection between the units.

BAV-0808 Rev. 0
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4.3.3 RJ45 to 5-pin DIN converter
In configurations that include both devices with RJ45 connectors, and devices with 5-pin DIN connectors,
an RJ45 to 5-pin DIN converter may be used to complete the control loop. This converter holds both
connector types, and may work both ways, thus from RJ45 to 5-pin DIN, as well as from 5-pin DIN to
RJ45.
The converter is connected as follows:
RJ45 (Router/CP) RJ45 (Converter) 5-pin DIN (Converter) 5-pin DIN (Router/CP)
IN IN IN OUT
OUT OUT OUT IN
4.4 Control bus structure
The Network Control Bus structure follows the standard MIDI bus definition. The NCB is defined as a
closed chain of units. This means that the NCB OUT of the last unit must be connected to the NCB IN of
the first unit in the NCB chain. To avoid problems with the control of Triton units the installer/user has to
assure that the bus structure is installed according to this definition. The total number of Triton devices in
an NCB chain is limited to 20.
4.5 Maximum distance between NCB devices
The standard MIDI definition allows a maximum cable length of 250 meters between two devices. Longer
distances can be made with MIDI repeater units. To avoid grounding problems all NCB ports have opto-
coupled inputs.
4.6 Control Bus configuration notes
In order to achieve a system that is easy to maintain and control, follow the important notes, presented
hereunder.
•Avoid using routers of different size, but same signal type (audio/video), on the same level.
Example: Do not configure a system with a BVS-1616 and a BVS-0808 on the same level. If they
were on the same level, crosspoint commands that were sent to the BVS-1616 lying outside the
range of the BVS-0808 would not be executed; the BVS-0808 would throw them off the bus.
However, a combination of a BVS-1616 and an BAS-0808 will work well, because commands are
different for video-and audio routers.
•Try to limit the number of devices on one Control Bus loop. If possible, separate systems that are
not to be controlled by one central control panel.
If you need to have several systems in one loop, try to separate as follows, using the DIP switches
on the rear of the devices:
o Analogue Video + Analogue Audio + CP for analogue system on Level 1
o SDI + AES/EBU + CP for digital system on Level 2

BAV-0808 Rev. 0
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o RS-422 Data + CP for data on Level 3
o Universal Control Panel to control all devices above, with user configurable default level.
•Pay attention to the figure below, in order to achieve full controllability of all devices in the loop.
•Complete the Control loop, by connecting all Control bus connections to all Triton devices, before
powering up any Triton device.
Triton -RCS

BAV-0808 Rev. 0
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5Router configuration
There are 8 DIP switches on the rear side of the BAV-0808. They have the following meaning:
5.1 Router level
Switches 1 -3 on the configuration switch set the router’s level for communication with the Triton Router
Control System, and other units in the NCB system. The panels on the NCB dedicated to operate with the
router must be configured to the same level as that router.
If several routers are combined to form an audio follows video, RGB or similar system, these routers must
be configured to the same level.
The levels can be switched according to the following pattern:
-means switch down
* means switch up
Default level is 1.
Switch 1 2 3 Level
---1
--* 2
-* -3
-* * 4
* --5
* -* 6
* * -7
* * * 8
5.2 Video Switch-timing mode
The BAV-0808 router allows switching video in different timing modes. Switches 4 -6 on the
configuration switch set this video switch-timing mode.
The timing modes can be switched according to the following pattern:
-means switch down
* means switch up
Switch 4 5 6 Switch Timing mode
---No VIT; immediate switching
--* 1 sec. Delayed RGB switching
-* -2 sec. Delayed RGB switching
-* * 3 sec. Delayed RGB switching
* --4 sec. Delayed RGB switching
* -* 5 sec. Delayed RGB switching
* * -Not used
* * * VIT switching

BAV-0808 Rev. 0
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Default timing mode is No VIT.
When RGB switching is applied, the Video routers 1, 2, and 3 will be switched in a special manner. When
a new status is received, via buttons in front, or serial connections, the video switchers 4, and 5, as well as
the audio, will be connected to the new input immediately. The video 1, 2, and 3 however, will instead
turn “black” (no signal on input) for the selected delay period. After this delay period, the new input will
be presented on the output.
5.3 Disconnect Allowed
This function allows the disconnection of an output from an input. If the user pushes the input button for
the currently selected output a second time, the selected output will be disconnected. This works for both
video and audio. The video output(s) will become “black”, and the audio output(s) will become silent.
Switch 7 on the configuration switch enables or disables this function.
The Disconnect function can be switched according to the following pattern:
-means switch down
* means switch up
Switch 7 Disconnect Allowed
-Disconnect Allowed
* Disconnect not allowed
Default is Disconnect Allowed.
5.4 Power up mode
Switch 8 on the configuration switch defines the power up mode. The BAV-0808 router provides two
modes for powering up the system.
Mode 1 switches all outputs to input 1.
Mode 2 switches all outputs according to the buffered information in the routers processor system.
The power up reset can be switched according to the following pattern:
-means switch down
* means switch up
Switch 8 Power Up Reset
-Mode 2
* Mode 1
Default is Mode 2.

BAV-0808 Rev. 0
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5.5 Programming of restrictions
If the user enables the Restrictions option, the previously programmed restrictions will be fetched from
the on-board memory during power-up. Putting the panel in “Restrictions Programming mode” may
program new restrictions. This is done, starting from Panel Disable state, by pushing and holding “V/A
toggle”, “Take On/Off” and “Take” and then pushing “Panel Enable”. Blinking “Panel Enable” and
“Take” indicates “Restrictions Programming mode”.
All the legal inputs for the selected output are shown by orange light in button. Pushing the appropriate
input button does the Legal/Illegal toggle. When a new output is selected, the programming of the
previous output is saved in the on-board memory and the old setting of the new output is fetched from the
on-board memory.
After all necessary programming is done; pushing Panel Disable stops the programming mode.
Disabling an output completely is done by disabling all inputs for the given output. When in normal mode
these outputs may be selected for viewing the status, but not controlled.

BAV-0808 Rev. 0
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6Connecting signal cables to the BAV-0808
6.1 Connecting Video Signals
The BAV-0808 router offers standard 75 ohms BNC connectors for video in-and outputs. All video
inputs are terminated with 75 ohms.
6.2 Connecting Audio Signals
Below you will find our standard pin-out for DB25 audio contacts. This pin-out is used for both analogue
and digital audio routers. The same standard is used by Tascam and Fostex.
Channel 1: + 24 -12 Gnd 25
Channel 2: + 10 -23 Gnd 11
Channel 3: + 21 -9 Gnd 22
Channel 4: + 7 -20 Gnd 8
Channel 5: + 18 -6 Gnd 19
Channel 6: + 4 -17 Gnd 5
Channel 7: + 15 -3 Gnd 16
Channel 8: + 1 -14 Gnd 2
All audio contacts used on the routers are female type.
6.2.1 Unbalanced audio signals on BAV-0808 outputs
If you want to use the BAV-0808 with unbalanced audio signals you connect these signals according to
the following table:
Triton device Unbalanced signal connection
‘+’ Audio
‘-’ Shield
‘GND’ Shield

BAV-0808 Rev. 0
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7Control panel operation
The built-in panel in the BAV-0808 offers 8 input select buttons on the top row. The input buttons are
equipped with two LED indicators for displaying both video and audio status during breakaway
operations. The bottom row selects the 8 router outputs. The last selected output will be indicated with the
LED. On the left hand side the panel provides 4 function keys with following functions:
• TAKE Executes the last operation
• TAKE ON/OFF Enables / disables Take function
• A/V TOGGLE Enables Audio, Video or AFV
• PANEL ENABLE Enables panel
7.1 Front panel drawing
A/V Take Input Select
Toggle
Panel Take Output Select Salvo Select
Enable On/Off
7.2 PANEL ENABLE button
After powering-up the control panel will be disabled. The LED`s in the buttons are only half illuminated.
Press the PANEL ENABLE button to start operating. If you want to lock the control panel after use you
simply disable by operating the PANEL ENABLE button once again.
7.3 V/A TOGGLE button
After powering-up the control panel will operate audio follow video. The red and green LED on the V/A
TOGGLE button are illuminated. By operating the V/A toggle button you can select the layer you want to
switch. Red LED illuminated means only audio. Green LED illuminated means only video.
7.4 Operating crosspoints
Operating crosspoints is an easy task with BAV-0808. First you select the output you want to operate on
the output button row. With the next operation you select one of the inputs on the input button row. The
crosspoint operation will be executed while pressing the input button.