Miranda NTW-VD1602 User Manual

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USER MANUAL

NTW-VD1602

Network Routing Switcher Series

DIGITAL VIDEO ROUTER - 16x2

Mira n da Technologi es in c.

2323 Halpern, St-Laurent

(Quebec) Canada H4S 1S3

Tel.: [phone]

Fax: [phone]

Miranda USA

1101 N. Pacific Ave, suite 204

Glendale, CA 91202

USA

Tel.: [phone]

Fax: [phone]

e-mail: [e-mail]

Technical speci fications are subject to be ch anged without notice

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Index

0. Revision history 3

1. General 4

1.1. Specifications 4

1.2. Connection drawing 4

2. Power connection 5

3. Connecting the NTW-VD1602 to your PC 5

3.1. Selection of router address 5

3.2. Pi n - ou t of RS-232 con nector 5

3.3. Maximum cable length 5

4. MIDI connection 6

4.1. Several routers i n one system 6

4.2. Connecting control panels 6

4.3. Pin-out and cable type 6

4.4. MIDI bus structure 6

4.5. Maximum distance between MIDI devices 7

5. Router configuration 7

5.1. Router address 7

5.2. Router extension mode 8

5.3. Vertical interval trigger 8

6. Connecting video signals to the NTW-VD1602 8

7. Input extension 9

8. Control and connection of Network systems, interface protocol 10

8.1. Important notes regarding the Network Control Protocol 10

8.1.1. Binary Code 10

8.1.2. Acknowledge / Echo 10

8.1.3. RS-422 Matrixes 10

8.1.4. Timeout 10

8.2. Basic principles 10

8.2.1. Example: A single unit with no MIDI connected 11

8.2.2. Example: Several units connected by MIDI 11

8.3. RS232 11

8.4. MIDI 11

8.5. Commands 12

8.5.1. Audio crosspoint set 12

8.5.2. Video crosspoint set 12

8.5.3. Crosspoint status request 12

General Environmental Requirements for Network Electronics Equipment 13

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0. Revision history

Curren t revision of this document is the uppermost in the table below.

Revision Replaces Date Change Description

0 - 10/10/00 Initial Revision

Technical speci fications are subject to be ch anged without notice

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1. General

The NTW-VD1602 i s a 16x2 serial digital video router with vertical interval switching and integrated control panel. This
state of the art router provides maximum quality with a data rate of up to 360Mbit/s and automatic cable equalizing. The
NTW-VD1602 offers the possibility to expand the router in th e input direction up to 64x2. The NTW-VD1602 is well suited
for all d emanding routing tasks in digital studio and broadcast environments. The built-in RS-232 inter face allows the user to
control the router via the i-Contr ol PC software with many operational features. The control bus allows linking the unit to the
NTW-AD1602 or NTW-A1602 audio router thus creating a 16x2 AFV router. One or several remote control panels (NTW­16-ProX-Y, NTW-16-ProS) can control the NTW-VD1602 as well. The control panel provides buttons for selection of inputs
an d 4 fun ct i on keys with foll owin g fun ct ions:

OUTPUT 1 Assigns input buttons to output 1

•

OUTPUT 2 Assigns input buttons to output 2

•

AUDIO / VIDEO Enables Audio, Video or AFV

•

ENABLE Enables panel

•

1.1. Specifications

Data rate NRZ: 143Mbit/s - 360Mbit/s
VIT input: Comp. Video 1Vpp, 300mV sync, 75 ohms
Number of inputs: 16 terminated
Equalization: Automatic up to 300m ( Belden 8281 )
Number of outputs: 2
Auxiliary inputs: 4 for router extension

Auxiliary output: 1 for router extension

Impedance: > 75 ohms
Return-loss in/out: > 18dB (10MHz – 270MHz)
Signal level: 800mV fixed on 75Ohm load
Rise/fall time: typ. 750ps
Connector: BNC
AC power: External power supply 100 - 260 VAC
DC power: ±5V, connector DB9 mal e
Dimensions: 483 x 44 x 45 mm (19”, 1RU)

1.2. Connection drawing

Configuration switch
Video input section Video outputs

MIDI bus Vertical Interval Trigger Extension Extension
Router Output
Power connector RS-232 port

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2. Power connection

Do not connect mains to the desk top power supply before connecting the power supply to the router.

Conn ect the DB 9 female connector from t he desk top power supp ly to the m ain u nit. Tighten the screws to assure a proper
contact. To connect mains to the desk top power supply you need a mains cord with IE C 320 connector. NTW-VD1602 uses
the desk top power model

If an external power supply is used the NTW-VD1602 router requires ±5V DC with a minimum current of 600mA. The
followin g pi n - ou t is u sed on th e DB9 ma le power connect or :

Pin 1 0V
Pin 2 +5V
Pin 6 -5V

AC-10-84-10-005 (±5V / 10W)

.

3. Connecting the NTW-VD1602 to your PC

For connection to a PC with Miranda’s i-Control control software th e 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 th e router to th e PCs serial port.

3.1. Selection of router address

The router address depends on the system configuration the router is going to work with. See ch apter 5 for mor e information.
All router s are delivered with default address 0. A router addressed to 0 can be control led 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 femal e connector for th e RS-2 32 por t has th e following pin -ou t:

Pin 2 Tx
Pin 3 Rx
Pin 5 GND

3.3. Maximum cable length

The maximum cable length for a RS-232 connection is per definition 15m. Longer distances can be installed depending on
the environm enta l conditions of the installation site. It is up to the i n staller / user to secure a pr oper in stallation of the RS­232 connection.

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4. MIDI connection

Via t he MIDI bus system several routers and control panels can be interconnected. The standard MIDI interface is used on all
Network MIDI control ports. For i nterconnection between t he devices a standard MIDI cable with 5pin DIN connector on
both ends is us ed. The Network MIDI bus system allows connection of up t o 16 routers with different addresses on th e 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 wor k together with one specific router. Up to 16 single routers or combination s of routers can be
controlled from one I-Control control screen. The MIDI bus system and all RS-232 ports interchange the system stat us.

4.1. Several routers in one system

The Network MIDI bus system allows the in terconnection of up to 16 routers with different addresses in one system. A
combination of router s working mar ried counts as one address. T his might for example be 1 a udio router + 1 video router
workin g 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 add ress.

4.2. Connecting control panels

To get a control pan el working with a specific router, give the cont rol panel the sam e address as th e router. Several panels
can be addressed to the same router. The X-Y panels can control 2 layers with breakaway function. If it is necessar y t o
control more layers with breakaway an additional panel must be used.

232 interface. Please refer to your control panel manual for installation.

Panels can also be connected to a router via the RS-

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 i s used. The following pin-out i s used:

1 - n.c. 1 - n.c.
2 - shield # # # # # # # # # # # # # # # # # # # # # # 2 - shield
3 - n.c. 3 - n.c.
4 - d ata - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4 - data data lines must

5 - data - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5 - data be twisted pair

The standard MI DI specification recommends the u s e of shielded twisted pair cable types for interconnecti on between the
units.

4.4. MIDI bus structure

The Network MIDI bus structure follows the stand ard MIDI bus defini tion.

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 assur e that the bus structure is

installed according to th is definition. The t otal number of MIDI devices in a MIDI chain is limited to 50.

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4.5. Maximum distance between MIDI devices

The standard MIDI definition allows a ma x imum 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

5.1. Router address

Switch 1 - 4 on t h e configuration switch set the router’s address for communication with the i-Control software and other
units in the MI DI bus system. T he i-Control control screen and the panels on the MIDI bus dedicated to operate with th e
router have to have the same address. If several router s are combined to form an Audio Follow Video, RGB or similar system,
these routers have to h ave the same add ress.

The addresses can be switched accor ding to the following pattern:

- means switch down
* means switch up

Default address is 0.

Switch 1 2 3 4 Address

- - - - 0

- - - * 1

- - * - 2

- - * * 3

- * - - 4

- * - * 5

- * * - 6

- * * * 7
* - - - 8
* - - * 9
* - * - 10
* - * * 11
* * - - 12
* * - * 13
* * * - 14
* * * * 15

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5.2. Router extension mode

Switch 5, 6 and 7 on the configuration switch set the router’s input offset in systems with 2 or more NTW-VD1602. You can
build systems up to 64x2. The chosen input offset defines on which input range each
NTW-VD1602 works on.

The offset can be swit ched accor ding to the foll owing pa ttern :

- means switch down
* means switch up

Switch 5 6 7 Offset

- - - 0

- - * 16

- * - 32

- * * 48

Switch 5 is always in position down.

Default is offset 0.

5.3. Vertical interval trigger

Switch 8 on the configuration switch enables or disables the VIT sensing on 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:

- means switch down
* means switch up

Switch 8 VIT

- disabled
* enabled

Default is VIT en abl ed.

6. Connecting video signals to the NTW-VD1602

The NTW-VD1602 router offers standard 75 ohms BNC connectors for digital video in- and outputs. All digital video inputs
are terminat ed with 75 ohms.

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7. Input extension

NTW-VD1602 allows input extension up to 64x2. Please connect the routers as shown below. A 4x1 extension router is used
to collect the signal from several units.

Please refer to chapter 5.2 regarding input offset.

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8. Control and connection of Network systems, interf ace protocol

8.1. Important notes regarding the Network Control Protocol

8.1.1. Binary Code

The strings shown on the next pages ar e in binar y coded format. Please be aware of the fact that any termin al program you
may use to control a Network unit from a PC m u st be able to generate hexadecimal characters. ASCII characters will not be
accepted.

8.1.2. Acknowledge / Echo

A matrix wi ll reply on a crosspoint set command with an ECHO. In the ca se where a crosspoint is already set n o ECHO will
be sent. If the matrix is par t of a MIDI system two types of repl y will be sent. Im mediat el y 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 ACKNOW LEDGE.

8.1.3. RS-422 Matrixes

RS-422 Data Rou ters do not a ccept distribut ion of a n input si gnal to several outputs. An input signa l can only be routed to
one single output . The Firmware of our RS-422 routers ta kes care of these l imitations. If an in put (Source) is alr e ady
connected to a particular output (Destination) any connection of this input to another output will disconn ect 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.

8.1.4. Timeout

The Crosspoint Status Request message has a timeout, which means that you need to wait 1 second in between request
messages.

8.2. Basic principles

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 m atrix which recogniz es its a ddress will not re-transm it the message if the output number or input n umber

exceeds its siz e.

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 gra bbing a message storing it for the timeout period, and comparin g 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.

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8.2.1. 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 m atrix which recognizes one of the conditions a) or b) above.

8.2.2. Example: Several units connected by MIDI

Messages sent to the RS232 of a single unit will be return ed once no matter what address or input/output number the message
ha s , unless it is a matrix which recognizes one of th e conditions a) or b) above.
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 r ing
recognizes any of the cases a)/b) or c), the message will stop at that poin t. This means that the message will only be returned
once on th e RS23 2.
However, if n one of the units on the MIDI ring recognizes any of the cases a) to c), the message will return to the originator
(th e unit which received the message on RS232). T his unit will re-tra nsmit 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 unit s on the MIDI ring, and the message is re moved.
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 th e store/comp are/r emove functi on in case c) can only
handle a single message at the time. We therefore recommend that the user avoid sending messages to unused addresses.

8.3. RS232

The R S-232 port is used for ext ernal control of Network unit s . Th e R S-232 port a llows the customer to control the equipm ent
via Miranda's i-Control PC program or self-defined customized solutions.

Conn ect or for th e RS- 232 por t is a D S9 fem a le.
Pin 2 - Tx.
Pin 3 - Rx
Pin 5 - GND

A standard DCE ( D ata Communi cation Equipment) cable can be used for con nection between PC a nd Network equipment.
The connect ion between t he connectors is made one-to-one.

Data-rate is 9600 baud/sec.
8 data-bit, 1 stop-bit, no parity.

8.4. MIDI

The MIDI bus is used for int erconnection bet w een several Network units. Up to 50 routers a nd/or control panels can be
linked together to form a routing system with many operational features.

The MIDI bus utilises a 5 m A 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 d ata-bit, no par ity, 1 stop-bit. Logical 0 = current ON.

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8.5. Commands

8.5.1. Audio crosspoint set

Only for use wit h A udio router s.
Comma nd for sett ing of crosspoi n t s:

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
0 = output 1
127 = output 128

- vvv vvvv is the input which shall be connected to the chosen output.
vvv vvvv = input number

8.5.2. Video crosspoint set

Only for use with Video routers.
Comma nd for sett ing of crosspoi n t s:

1010nnnn 0kkkkkkk 0vvvvvvv

- nnnn is the matrix address from 0 up to 15.

- kkk kkkk is the output which shall be controlled.
kkk kkkk = output number
0 = output 1
127 = output 128

- vvv vvvv is the input which shall be connected to the chosen output.
vvv vvvv = input number

8.5.3. Crosspoint status request

Thi s com m an d is u sed for status requ est on Aud i o an d Vi deo rou ter s.

1100nnnn 0xxxxxxx

- 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.

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General Environmental Requirements for

Network Electronics Equipment

1. The equipment will meet the guara ntee d performance spe cification un der t he 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 enviro nmental

conditions:

Temperature range -10°C to 55°C

•

Relative humidity range up to 95% (non-c ondensing)

•

3. Electromagnetic co mp atibility conditions:

Emissions EN 55103-1 (Directive 89/336/EEC)

•

Immunity EN 55103-2 (Directive 89/336/EEC)

•

Electrical safety EN 60 950

•

With reference to the declaration of conformity provided with the external power supply.

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Network Electronics AS

Hinderveien 4, 3204 Sandefjord, Norway

Tel.: [phone] Fax: [phone] e-mail: [e-mail]

De clarat ion 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 speci fications are subject to be ch anged without notice