Miranda NTW-VD3232 User manual
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Miranda NTW-VD3232 is a 32x32 serial digital video router with vertical interval switching. This state-of-the-art router provides maximum quality with a data rate of up to 540 Mbit/s and automatic cable equalizing on all inputs. High-performance circuits in SMD technology assure undiminished signal quality. The NTW-VD3232 is well-suited for all demanding routing tasks in digital studio and broadcast environments. Additionally, the built-in RS-232 interface allows you to control the router via the iControl PC software, which offers many operational features.
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USER MANUAL
NTW-VD3232
Network Routing Switcher Series
DIGITAL VIDEO ROUTER - 32x32
1
Technical specifications are subject to be changed without notice
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Index
1. General
1.1. Specifications
3. Connecting the NTW-VD3232 to your PC
3.1. Selection of router address
3.2. Pin-out of RS-232 connector
4.1. Several routers in one system
4.3. Pin-out and cable type
4.4. MIDI bus structure
4.5. Maximum distance between MIDI devices
2
5.4. Power up mode
6. Connecting video signals to the NTW-VD3232
7. Control and connection of Network systems, interface protocol
7.1. Important notes regarding the Network Control Protocol
7.1.4. Timeout
7.2.1.
7.2.2.
Example: A single unit with no MIDI connected
Example: Several units connected by MIDI
7.3. RS232
7.4. MIDI
7.5. Commands
7.5.1. Audio crosspoint set
7.5.2.
7.5.3.
Video crosspoint set
Crosspoint status request
General Environmental Requirements for Network Electronics Equipment
Technical specifications are subject to be changed without notice
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0. Revision history
Current revision of this document is the uppermost in the table below.
Revision Replaces Date Change Description
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1. General
The NTW-VD3232 is a 32x32 serial digital video router with vertical interval switching. This state of the art router provides maximum quality with a data rate of up to 540 Mbit/s and automatic cable equalising on all inputs. High performance circuits in SMD technology assure undiminished signal quality. The NTW-VD3232 is well suited for all demanding routing tasks in digital studio and broadcast environments. The built-in RS-232 interface allows the user to control the router via the i-
Control PC software with many operational features. The control bus technology allows linking the unit with the NTW-
A3232 or NTW-AD3232 to create an AFV router. One or several NTW-32-ProX-Y remote control panels can control the
NTW-VD3232 as well. Another unique feature of the Network 32x32 series is the possibility to reconfigure the router via the configuration switch on the back plane to create several formats of routers:
32x32
16x16
Serial Digital Video 1 layer
Serial Digital Video 2 layer
10x10
8x8
Serial Digital Video 3 layer
Serial Digital Video 4 layer
1.1. Specifications
VIT input:
Number of inputs:
Equalisation:
Number of outputs:
Comp. Video 1Vpp, 300mV sync, looped, 75ohms
32 terminated
Automatic up to 300m ( Belden 8281 )
32
Signal level:
RS-232 interface:
AC power:
DC power:
Dimensions:
800mV fixed, 75 ohms load
19200 baud
External power supply 100 - 260 VAC
+5V, connector DB9 male
483 x 122 x 120 mm (19”, 3RU)
Technical specifications are subject to be changed without notice
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Video input section Video output section
Configuration switch
5
RS-232 port MIDI bus Power connector
Vertical interval trigger
2. Power connection
Do not connect mains to the desk top 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 desk top power supply you need a mains cord with IEC 320 connector. NTW-VD3232 uses the desk top power model AC-10-87-30-005 (±5V / 30W).
If an external power supply is used the NTW-VD3232 router requires +5V DC with a minimum current of 4100mA. The following pin-out is used on the DB9 male power connector:
Pin 1 and 9
Pin 2 and 5
0V
+5V
3. Connecting the NTW-VD3232 to your PC
For connection to a PC with Miranda’s i-Control control software the RS-232 interface is used. The
RS-232 port on all Network 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. The RS-232 interface for all Network
32x32 routers works with a baud rate of 19200.
3.1. Selection of router address
The router address depends on the system configuration the router is going to work with. See chapter 5 for more information.
All routers are delivered with default address 0. A router addressed to 0 can be controlled from the i-Control software with address 0. i-Control 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
Pin 3
Pin 5
Tx
Rx
GND
Technical specifications are subject to be changed without notice
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3.3. Maximum cable length
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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 up to the installer / user to secure a proper installation of the RS-
232 connection.
4. MIDI connection
Via the MIDI bus system several routers and control panels can be interconnected. The standard MIDI interface is used on all
Network MIDI control ports. For interconnection between the devices a standard MIDI cable with 5pin DIN connector on both ends is used. The Network MIDI bus system allows connection of up to 16 routers with different addresses on the same bus. Routers which are defined to work married, e. g. 2 routers as Audio follow Video or 3 routers as RGB (YUV) must be set on the same address. Control panels dedicated to work with a specific router must have the same address 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 one i-Control control screen. The MIDI bus system and all RS-232 ports interchange the system status.
4.1. Several routers in one system
The Network MIDI bus system allows the interconnection of up to 16 routers with different addresses in one system. A combination of routers working married counts as one address. This might for example be 1 audio router + 1 video router working as an audio follow video system or 3 video routers working as a RGB (YUV) system. The routers in such a constellation have to have the same address.
To get a control panel working with a specific router, give the control panel the same address as the router. Several panels can be addressed to the same router. The X-Y panels can control 2 layers with breakaway function. If it is necessary to control more layers 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. Attention: Only NTW-32-Pro panels can be
used together with NTW-VD3232 when connecting via RS-232.
Technical specifications are subject to be changed without notice
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4.3. Pin-out and cable type
The pin-out of all Network MIDI ports follows the standard MIDI specification.
A 1 to 1 cable with 5pin DIN connector is used. The following pin-out is used:
1 - n.c. 1 - n.c.
2 - shield # # # # # # # # # # # # # # # # # # # # # # 2 - shield
3 - n.c. 3 - n.c.
4 - data - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4 - data data lines must
5 - data - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5 - data be twisted pair
The standard MIDI specification recommends the use of shielded twisted pair cable types for interconnection between the units.
4.4. MIDI bus structure
The Network MIDI bus structure follows the standard MIDI bus definition. The Network MIDI bus is defined as a closed chain of units. This means that the MIDI OUT of the last unit must be connected to the MIDI IN of the first unit in the
MIDI chain. To avoid problems with the control of Network units the installer/user has to assure that the bus structure is installed according to this definition. The total number of MIDI devices in a MIDI chain is limited to 50.
4.5. Maximum distance between MIDI 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 Network MIDI ports have opto-coupled inputs.
5. Router configuration
Switch 1 - 4 on the configuration switch SW A set the router’s address for communication with the i-Control software and other units in the MIDI bus system. The i-Control control screen and the panels on the MIDI bus dedicated to operate with the router have to have the same address. If several routers are combined to form an Audio Follow
Video, RGB or similar system, these routers have to have the same address.
The addresses can be switched according to the following pattern:
Default address is 0.
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Switch 1 2 3 4 Address
- - - * 1
3
5
7
9
8
* * * * 15
The NTW-VD3232 router allows switching in different modes. You can choose among:
32x32
16x16
Serial Digital Video 1 layer
Serial Digital Video 2 layer
10x10
8x8
Serial Digital Video 3 layer
Serial Digital Video 4 layer
Switch 5 - 6 on the configuration switch SW A set the router’s mode. The i-Control software must be configured according to the mode chosen on the router.
The modes can be switched according to the following pattern:
Switch 5 6 Mode
- - 32x32 Serial Digital Video 1 layer
- * Serial
*
- Serial
*
Default mode is 32x32 Serial Digital Video 1 layer.
8x8 Serial Digital Video 4 layer
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Serial Digital Video 1 layer
SDV Signal Input SDV Signal Output
17 17 17 17
18 18 18 18
19 19 19 19
20 20 20 20
21 21 21 21
22 22 22 22
23 23 23 23
24 24 24 24
25 25 25 25
26 26 26 26
27 27 27 27
28 28 28 28
29 29 29 29
30 30 30 30
31 31 31 31
32 32 32 31
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Serial Digital Video 2 layer
SDV layer 1 Input SDV layer 1 Output
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SDV layer 2 Input SDV layer 2 Output
Technical specifications are subject to be changed without notice
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Serial Digital Video 3 layer
SDV layer 1 Input SDV layer 1 Output
SDV layer 2 Input SDV layer 2 Output
SDV layer 3 Input SDV layer 3 Output
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Serial Digital Video 4 layer
SDV layer 1 Input SDV layer 1 Output
SDV layer 2 Input SDV layer 2 Output
SDV layer 3 Input SDV layer 3 Output
SDV layer 4 Input SDV layer 4 Output
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5.3. Vertical interval trigger
The NTW-VD3232 router provides vertical interval switching. If vertical interval switching is desired you have to connect an analog VIT reference signal to the VIT input. The NTW-VD3232 provides a looped VIT input. Please terminate the loop with 75 Ohms if loop output not in use.
Switch 7 on the configuration switch SW A enables or disables the VIT sensing on the VIT input. If VIT switching is enabled but a proper signal is missing, the router will automatically switch without VIT.
The VIT can be switched according to the following pattern:
Switch
Default is VIT enabled.
7
-
*
VIT
disabled
enabled
Switch 8 on the configuration switch SW A defines the power up mode. The NTW-VD3232 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:
Switch
Default is Mode 2.
8
-
*
Power Up Reset
Mode 2
Mode 1
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6. Connecting video signals to the NTW-VD3232
The NTW-VD3232 router offers standard 75 ohms BNC connectors for digital video in- and outputs. All digital video inputs are terminated with 75 ohms.
7. Control and connection of Network systems, interface protocol
7.1. Important notes regarding the Network Control Protocol
The strings shown on the next pages are in binary coded format. Please be aware of the fact that any terminal program you may use to control a Network unit from a PC must be able to generate hexadecimal characters. ASCII characters will not be accepted.
A matrix will reply on a crosspoint set command with an ECHO. In the case where a crosspoint is already set no ECHO will be sent. If the matrix is part of a MIDI system two types of reply will be sent. Immediately after receiving the crosspoint set command the ECHO will be sent. The matrix will then wait for the command to pass the MIDI bus system. After receiving the command from the MIDI bus system the matrix will send the command as an ACKNOWLEDGE.
RS-422 Data Routers do not accept distribution of an input signal to several outputs. An input signal can only be routed to one single output. The Firmware of our RS-422 routers takes care of these limitations. If an input (Source) is already connected to a particular output (Destination) any connection of this input to another output will disconnect the previous connection. The router will in this case send the following message for the disconnected output: Output connected to input
128. Input 128 is an internal default for the disconnect status. Please see Network recommendations for use of RS-422 data routers for further information.
7.1.4. Timeout
The Crosspoint Status Request message has a timeout, which means that you need to wait 1 second in between request messages.
Any message on any level (address) which conforms to the standard arriving at either the MIDI or the RS232 port, will be resent on both MIDI and RS232. The only exceptions are: a) A matrix which recognizes its address will not re-transmit the message if the crosspoint is already set. b) A matrix which recognizes its address will not re-transmit the message if the output number or input number exceeds its size. c) A unit (matrix or panel) will not re-transmit a message arriving at the MIDI if it was re-transmitted a short while ago (typically 0.5 sec). This is done by grabbing a message storing it for the timeout period, and comparing it with new messages. After the timeout period the unit will grab a new message for compare. This is done to remove unwanted (read: unknown) messages from the MIDI ring. d) A message arriving at the RS232 will always be re-transmitted unless it is a matrix, and one of the cases a) or b) is fulfilled.
7.2.1. Example: A single unit with no MIDI connected
Messages sent to the RS232 of a single unit will be returned once no matter what address or input/output number the message has, unless it is a matrix which recognizes one of the conditions a) or b) above.
7.2.2. Example: Several units connected by MIDI
Messages sent to the RS232 of a single unit will be returned once no matter what address or input/output number the message has, unless it is a matrix which recognizes one of the conditions a) or b) above.
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If none of the cases a) or b) is fulfilled the message will also be transmitted on the MIDI. Then if any unit on the MIDI ring recognizes any of the cases a)/b) or c), the message will stop at that point. This means that the message will only be returned once on the RS232.
However, if none of the units on the MIDI ring recognizes any of the cases a) to c), the message will return to the originator
(the unit which received the message on RS232). This unit will re-transmit the message once more on both MIDI and RS232.
The message is therefore returned a second time on RS232. This time one of the cases a) or c) is sure to be identified by one of the units on the MIDI ring, and the message is removed.
There is however one more special case: If several messages for unused addresses are transmitted with only little delay, one might experience that some messages are returned several times, as the store/compare/remove function in case c) can only handle a single message at the time. We therefore recommend that the user avoid sending messages to unused addresses.
7.3. RS232
The RS-232 port is used for external control of Network units. The RS-232 port allows the customer to control the equipment via Miranda's i-Control PC program or self-defined customized solutions.
Connector for the RS-232 port is a DS9 female.
Pin 2 - Tx.
Pin 3 - Rx
Pin 5 - GND
A standard DCE (Data Communication Equipment) cable can be used for connection between PC and Network equipment.
The connection between the connectors is made one-to-one.
Data-rate is 19200 baud/sec for all 32x32 units.
8 data-bit, 1 stop-bit, no parity.
7.4. MIDI
The MIDI bus is used for interconnection between several Network units. Up to 50 routers and/or control panels can be linked together to form a routing system with many operational features.
The MIDI bus utilises a 5 mA current loop with opto coupled ports.
Standard connector is a 5pin DIN.
Standard MIDI cables can be used to interconnect several Network units.
Data-rate is 31.25 kbit/sec.
1 start-bit, 8 data-bit, no parity, 1 stop-bit. Logical 0 = current ON.
7.5. Commands
7.5.1. Audio crosspoint set
Only for use with Audio routers.
Command for setting of crosspoints:
1001nnnn 0kkk kkkk 0vvv vvvv
- nnnn is the matrix address from 0 up to 15.
- kkk kkkk is the output which shall be controlled. kkk kkkk = output number
- vvv vvvv is the input which shall be connected to the chosen output.
vvv number
Technical specifications are subject to be changed without notice
Revision: 0
7.5.2. Video crosspoint set
Only for use with Video routers.
Command for setting of crosspoints:
- nnnn is the matrix address from 0 up to 15.
- kkk kkkk is the output which shall be controlled.
kkk number
16
- vvv vvvv is the input which shall be connected to the chosen output. vvv vvvv = input number
7.5.3. Crosspoint status request
This command is used for status request on Audio and Video routers.
- nnnn is the matrix address from 0 up to 15.
- xxxxxxx - do not carry any information
The requested router (Audio or Video) will send its crosspoint status on MIDI OUT and RS232. The same command format as for crosspoint set is used.
Technical specifications are subject to be changed without notice
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General Environmental Requirements for
Network Electronics Equipment
1. The equipment will meet the guaranteed performance specification under the following environmental conditions:
• Operating room temperature range 0°C to 45°C
Except of digital video routers 0°C to 40°C
• Operating relative humidity range up to 90% (non-condensing)
2. The equipment will operate without damage under the following environmental conditions:
• Temperature
• Relative humidity range
3. Electromagnetic compatibility conditions: up to 95% (non-condensing)
• Emissions EN
EN
With reference to the declaration of conformity provided with the external power supply.
Technical specifications are subject to be changed without notice
Revision: 0 18
Network Electronics AS
Hinderveien 4, 3204 Sandefjord, Norway
Tel.: +47 33 48 99 99 Fax: +47 33 48 99 98 e-mail: [email protected]
Declaration of Conformity with CE
This apparatus meets the requirements of EN 55103-1 (November 1996) with regard to emissions, and EN 55103-2 (November 1996) with regard to immunity; it thereby complies with the Electromagnetic Compatibility Directive 89/336/EEC.
Regarding electrical safety we refer to the declaration of conformity provided with the external power supply.
Technical specifications are subject to be changed without notice
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