Miranda DV-Bridge+ Installation Manual

DV-Bridge+

DV T o/From
Digital
Audio-Video
C odec

Guide to Installation

and Operation

M463-9900-100

Copyright 2001

Miranda Technologies Inc.

Specifications may be subject to change.

Printed in Canada

October 2001

DV-Bridge+

Miranda

Technologies inc .

3499 Douglas B. Floreani

St-Laurent, Québec, Canada H4S 1Y6

Tel. [phone]

Fax. [phone]

www.miranda.com

GUIDE TO INSTALLATION AND OPERATION

DV Bridge + | i

Warranty Policies

Warranty Statement

Miranda Technologies Inc. warrants that the equipment it manufactures shall be
free from defects in material and workmanship for a period of two (2) years from
the date of shipment from the factory. If equipment fails due to such defects,
Miranda Technologies Inc. will, at its option, repair or provide a replacement for
the defective part or product.

Equipment that fails after the warranty period, has been operated or installed in a
manner other than that specified by Miranda, or has been subjected to abuse or
modification, will be repaired for time and material charges at the Buyer’s
expense.

All out-of-warranty repairs are warranted for a period of ninety (90) days from the
date of shipment from the factory.

Miranda Technologies Inc. makes no other warranties, expressed or implied, of
merchantability, fitness for a particular purpose or otherwise. Miranda’s liability
for any cause, including breach of contract, breach of warranty, or negligence,
with respect to products sold by it, is limited to repair or replacement by Miranda,
at its sole discretion.

In no event shall Miranda Technologies Inc. be liable for any incidental or
consequential damages, including loss of profits.

Effective January 1, 1999

Warranty Exchange Policies

Miranda Technologies Inc. warrants that the equipment it manufactures shall be
free from defects in materials and workmanship for a period of two (2) years from
the date of shipment from the factory. If equipment fails due to such defects,
Miranda will provide repair of the failed unit under the terms of the Miranda
warranty.

If the equipment has been proven to be defective on arrival, Miranda will ship a
new product in exchange, usually within 36 hours of factory notification.

If the equipment to be repaired is essential and the customer so requests,
Miranda will, at its option, provide a service replacement or loaner part or
product, usually within 36 hours of factory notification, weekends and holidays
excluded.

All warranty exchange or loaner parts or products shall be shipped to the Buyer
with a packing list clearly describing the items and stating the date of shipment.
Repaired parts or products will be shipped to the Buyer with a similar packing
list.

GUIDE TO INSTALLATION AND OPERATION

ii | DV Bridge+

In the case of exchange, the defective products or parts must be returned to
Miranda within fifteen (15) days from receipt by the customer of the exchange
product.

In the case of a loaner, the loaned products or parts must be returned to Miranda
within fifteen (15) days from receipt by the customer of the repaired equipment.

If the equipment is not returned within fifteen (15) days, as described for either
exchanges or loans, A Rental Invoice will be generated. Rental terms will be
fifteen
(15) percent of the current list price of the products or parts per month or a
fraction thereof.

Before returning the equipment to Miranda Technologies Inc., for any reason, the
Buyer must first obtain a Return Authorization Number from Miranda
Technologies Inc.

Miranda Technologies Inc will pay freight and insurance charges for the delivery
of the loaner or exchange products or parts. Freight and insurance charges for
the return of the defective product or part will also be paid by Miranda
Technologies.

Out-Of-Warranty Repair Policy

Miranda will service out-of-warranty repairs using the following model:

Miranda will charge 10% of the current list price of the product, with a minimum
charge of $100.
Products whose list price is under $100 will be replaced at a charge equal to
current list prices.
In the case of obsolete products, the last published list price for the products will
apply.
In the case of a product deemed beyond repair, the customer must purchase a
new product at current retail prices.

All out-of-warranty repairs are warranted for a period of 90 days from the date of
shipment from the factory.

Before returning the equipment to Miranda Technologies Inc., for any reason, the
Buyer must first obtain a Return Authorization Number from Miranda
Technologies Inc.

The Buyer will pay freight and insurance charges for the return of the defective
product or part to the manufacturer for repair. Miranda Technologies will pay
freight and insurance charges for the return of the repaired product or part to the
Buyer.

Out-Of Warranty Equipment Updates and Spare Parts Policy

GUIDE TO INSTALLATION AND OPERATION

DV Bridge + | iii

Miranda Technologies will charge cost plus 20% of the parts costs and $40.00
shipping and handling for out-of-warranty equipment updates, or the sales of
spare parts.

Safety Compliance Information

Safety Compliance

This equipment complies with:

- CAN/CSA C22.2 No. 950-95 / Safety of Information Technology Equipment,
Including Electrical Business Equipment.

- UL Std. No. 1950, 3rd Ed. / Safety of Information Technology Equipment,
Including Electrical Business Equipment.

- EN 60950:1992 (2nd edition) Incorporating A1, A2, A3, A4, and A11/ Safety
of Information Technology Equipment, Including Electrical Business
Equipment.

CAUTION

These servicing instructions are for use by qualified service personnel only. To
reduce the risk of electric shock, do not
perform any servicing other than that contained in the operating instructions
unless you are qualified to do so. Refer all
servicing to qualified service personnel.

Electromagnetic Compatibility

- This equipment has been tested for verification of compliance with FCC Part
15, Subpart B, class A requirements for Digital Devices.

- This equipment complies with the requirements of:
EN 55022 Class A, Electromagnetic Emissions,
EN 61000-3-2 & -3-3, Disturbance in Supply Systems
EN 61000-4-2, -3, -4, -5, -6, -8 & -11 Electromagnetic Immunity
EN 55024 Electromagnetic Immunity

GUIDE TO INSTALLATION AND OPERATION

iv | DV Bridge+

GUIDE TO INSTALLATION AND OPERATION

DV Bridge + | v

Contents

page

1 DV-Bridge+ DV To/From Digital Audio-Video Codec................1

1.1 Introduction...............................................................................1

1.2 Features ...................................................................................2

2 Installation ................................................................................3

2.1 Connections .............................................................................3

2.2 Application Examples...............................................................4

2.3 Electrical Installation.................................................................5

3 Operation..................................................................................9

3.1 Front PanelUser Interface ........................................................9

3.2 DIP Switches on Bottom Panel...............................................10

3.3 Device Control........................................................................11

4 Troubleshooting......................................................................13

5 Specifications ........................................................................15

GUIDE TO INSTALLATION AND OPERATION

vi | DV Bridge+

GUIDE TO INSTALLATION AND OPERATION

DV Bridge + | 1

1 DV-Bridge+ DV To/From Digital Audio-Video Codec

1.1 Introduction

DV-Bridge+ is a compact, desktop unit designed to convert 4:2:2 (ITU-

601) video and AES-3id audio to and from DV compressed audio/

video. The DV-Bridge+ is ideal for interfacing consumer or professional
miniDV camcorders, VTRs, and editing or graphics systems equipped
with the IEEE-1394 (FireWire, i.LINK) interface to professional
uncompressed (4:2:2 and AES-3id) video and audio equipment. DV­Bridge+ acts as either a DV encoder or decoder. When operating in
encode mode, DV-Bridge+ encodes material originating in 4:2:2 and
AES-3id to the DV format and outputs DV on the IEEE-1394 interface.
As a decoder, DV-Bridge+ decodes material arriving on the same IEEE­1394 interface and converts it to 4:2:2 and AES-3id. Convenient
NTSC/PAL, S-Video and line-level analog audio outputs allow simple
monitoring or dubbing of the DV signal. DV-Bridge+ is ideal for a
number of recording, dubbing and monitoring applications in a mixed

DV/4:2:2 and AES-3id environment.
DV-Bridge+ also provides time code support (LTC, DVITC) and remote­control capabilities through the IEEE-1394 ports and through a RS-422
serial port. The DV-Bridge+ features a simple user interface, using a
single button to control its functions and bi-color monitoring LEDs.
Some parameters are set using DIP switches on the bottom of the unit.
Input and output connectors are in the back, as is the power switch.

GUIDE TO INSTALLATION AND OPERATION

2 | DV Bridge+

The DV-Bridge+ features a universal power supply, eliminating the
need for a separate power converter. A built-in anti-slip camera rest
allows a DV camera to sit conveniently in view to monitor its operation.

Figure 1

Functional Block Diagram

1.2 Features

- Bi-directional DV to SDI/AES converter

- Designed for DV devices equipped with IEEE-1394 interface (a.k.a.
i.LINK, Firewire)

- Encodes 4:2:2 video and AES-3id audio to DV stream

- Decodes DV stream to 4:2:2 (SDI) video and AES-3id audio

- Dual IEEE-1394 ports

- AES-3id audio input and output for interconnection with professional
audio equipment

- Convenient NTSC/PAL, S-Video and analog audio outputs for
monitoring and dubbing

- Automatic detection of 525/625 line/scan formats

- Support of 32, 44.1 and 48 kHz audio sample rates

- Fully compatible with existing software and hardware for DV/i.Link
processing

- Compact package suitable for desktop

- Built-in, universal power supply

- LTC and DVITC timecode support in input and output

GUIDE TO INSTALLATION AND OPERATION

DV Bridge + | 3

- Remote-control using IEEE-1394 (e.g. a DV VTR) or through the
RS-422 serial port (compatible with basic commands of the Sony
BVW-75 protocol)

2 Installation

2.1 Connections

Refer to figure 2.1 and to the following description when connecting the
DV-Bridge+.

Figure 2.1

Rear view of the DV-Bridge+

1 DV In/Out

Connect a DV source to one of the DV connectors at the rear of the DV­Bridge+ for input and output. Source must comply with IEEE-1394
(i.Link) standard. The 4-pin and 6-pin connectors effectively provide
active loop-through when the unit is turned on.

2 SDI In/Out

Connect an SDI signal to the SDI input BNC connector (left-hand side)
labeled SDI. The DV-Bridge+ accepts 4:2:2 serial digital video signals
in either 525 or 625 line formats. The input signal must conform to the
SMPTE 259M standard. For DVITC timecode support, insert a
timecode conforming to SMPTE 12M in the input signal. Connect
destination equipment to the SDI output BNC connector (right-hand
side). The DVITC timecode in the output signal respects the same
standard as the one in the input signal.

3 AES In/Out

Connect an unbalanced AES signal to the AES input BNC connector
labeled AES. The DV-Bridge+ supports 32, 44.1 and 48 kHz sample
rates. This signal must comply with the AES-3id-1995 (SMPTE 276M)
standard. Connect destination equipment to the AES output BNC
connector (right-hand side).

4 LTC In/Out

Connect an LTC signal to the LTC input BNC connector labeled LTC
(upper one). The DV-Bridge+ accepts LTC signals for 525 or 625 line

GUIDE TO INSTALLATION AND OPERATION

4 | DV Bridge+

formats. This signal must comply with the SMPTE 12M standard.
Connect destination equipment to the LTC output BNC connector
(lower one).

5 Monitoring Output

Connect analog destination equipment to the connectors at the rear of
the DV-Bridge+. Use the BNC labeled Composite or the mini-Din
labeled S-Video for video output; use the two RCA labeled R and L for
audio output.

6 AC In

Connect the supplied AC power cord into AC inlet. Both 120 VAC and
220 VAC standards are supported by the DV-Bridge+ built-in power
supply.

2.2 Application Examples

The following figures show typical set-ups for using the DV-Bridge+.

Editing video and audio where the editing workstation operates in either
DV or 4:2:2 while the video source/destination is in the other is
illustrated in figures 2.2 and 2.3. Transferring video and audio from one
format to the other is illustrated in figures 2.4 and 2.5. Dubbing from a
DV source to a consumer VTR is shown in figure 2.6, while figure 2.7
shows how to monitor a DV-to-DV dubbing session.

Figure 2.2

Editing with a DV Workstation and a 4:2:2 VTR

DV/CONTROL

Analog Monitor

Studio VTR or Other

4:2:2 + AES Destination

4:2:2+AES+LTC

NTSC/PAL

& Audio

Monitoring

Destination

RS-422 SERIAL PORT

DV Editing System

Source

GUIDE TO INSTALLATION AND OPERATION

DV Bridge + | 5

The RS-422 DIP switch is set to Controlling. IEEE-1394 device control
from the workstation is transferred to the VTR via RS-422 Sony
protocol.

Figure 2.3

Editing with a 4:2:2 Workstation and a DV VTR

The RS-422 DIP switch is set to Tributary. RS-422 device control from
the workstation is transferred to the VTR via the IEEE-1394

NOTE : With Tributary option selected you must only connect

one

DV
device to the DV-Bridge+; the second IEEE-1394 port must remain
empty.

Figure 2.4

Transferring from DV to

SDI+AES+LTC

Analog Monitor

4:2:2+AES+

LTC

NTSC/PAL

& Audio

Monitoring

4:2:2 Editing System

RS-422 SERIAL

PORT

Source

Destination

DV VTR

DV Camcorder

DV/CONTROL

OR

DV

Analog Monitor

Studio VTR or Other

4:2:2 + AES Destination

4:2:2+AES+LTC

NTSC/PAL

& Audio

Monitoring

Destination

DV Camcorder

Source

DV VTR

GUIDE TO INSTALLATION AND OPERATION

6 | DV Bridge+

Figure 2.5

Transferring from

SDI+AES+LTC

to

DV

Figure 2.6

Dubbing from DV to

Consumer VCR

(VHS or S-VHS)

4:2:2

+ AES

Analog Monitor

NTSC/PAL

& Audio

MonitoringSource

DV

Studio VTR or Other

4:2:2 + AES Destination

DV Camcorder

Destination

DV VTR

+ LTC

Destination

Consumer VCR or VHS/SVHS

DV Camcorder

DV

NTSC/PAL/S-Video

& Audio

Source

DV VTR

GUIDE TO INSTALLATION AND OPERATION

DV Bridge + | 7

Figure 2.7

Monitoring a DV to DV transfer

Analog Monitor

DV Camcorder

DV

DV VTR

NTSC/PAL

& Audio

Monitoring

Source

c

Destination

GUIDE TO INSTALLATION AND OPERATION

8 | DV Bridge+

GUIDE TO INSTALLATION AND OPERATION

DV Bridge + | 9

3 Operation

Controls for the DV-Bridge+ are found on the front panel (see figure

3.1), and on the bottom of the unit (see figure 3.2).

3.1 Front Panel User Interface

Once the DV-Bridge+ is connected to the source and destination
equipment, a single front-panel button is used to select the operating
mode. Operating mode and signal status are monitored by LEDs.

Figure 3.1

Front panel

To set the DV-Bridge+, simply push the button to select the desired
mode; the mode toggles each time the button is pushed. Modes are:

-SDI→DV: encodes 4:2:2 video and AES audio to Digital

Video. This mode will function even if
there is no AES audio present.

-DV→SDI: decodes Digital Video to 4:2:2 video and AES

audio.

-SDI→SDI: transfers between 4:2:2 video and AES audio

source and destination.

-Auto: This mode will detect if the source is DV or SDI

and will either decode it or transfer it to an SDI
destination equipment.

Note:

At any time, any encoding, decoding or transfer operation can be
monitored using the analog video and audio outputs at the rear of the
unit, allowing the use of an analog monitor. Alternatively, the analog
output can be used to record from an SDI or DV source using a
consumer VCR; simply select SDI→SDI to record from a SDI source
and DV→SDI to record from a DV source (analog monitoring and

recording are possible even if no SDI or DV destination equipment is
connected to the unit).

Mode selection
pushbutton

Mode
LEDs

Signal Status LEDs

GUIDE TO INSTALLATION AND OPERATION

10 | DV Bridge+

The Mode LEDs are bicolor and indicate the status of the input signals,
as follows:

Green: the mode is operating correctly;
Red: indicates an invalid or absent input signal. Check

that the mode selected conforms to the equipment
connected or verify that there is an input signal pre-

sent and that cables are properly connected.

The Signal Status LEDs indicate the video line format, audio sample
rate and time code format.

3.2 DIP Switches on Bottom Panel

The bottom panel has two sets of DIP switches, labelled to indicate
their function as shown in figure 3.2. These switches are used to set up
the DV-Bridge+ with respect to time code, default video standard,
compression standard and control interface status, as described in the
following sections.

Figure 3.2

Underside of the DV-Bridge+

The TIME CODE INSERTION LINE
SELECTION switches allow you to

turn DVITC time code insertion on
or off, and when on, to choose the
lines where you want to insert the
time code.

The DEFAULT switch lets you
choose the default video standard
(525 or 625 lines). The DV-Bridge+
supports both standards in the
same session without setting any
switches, but a lot of DV
workstations are not able to do so.
Those kinds of workstation set their
software DV driver in one standard
or the other only once at power-up
by looking at which standard an
attached DV device is working with.
So in any case where you don’t
have an active video source (4:2:2)
to set this standard, be careful to
set this switch correctly before

GUIDE TO INSTALLATION AND OPERATION

DV Bridge + | 11

plugging the DV-Bridge+ into your DV workstation and before turning on
the workstation.

The COMPRESSION switch lets you choose between DV25 or
DVCPRO25 compression. This switch is only relevant if you are
working in 625 lines because it is only in this case that these
compressions are different. Most DV workstations work with DV25
compression. Keep in mind that this switch controls only the way that
the DV-Bridge+ generates a DV stream on the iLink; it receives and
correctly converts a DV stream into 4:2:2 without changing this switch.

The TIMECODE switches lets you choose the way that your time code
sources are processed for a 4:2:2-to-DV transfer. The DV-Bridge+
supports LTC and DVITC time code. By setting the first dip switch in
AUTO, the DV-Bridge+ automatically selects the right input. First, it
looks for DVITC timecode in the 4:2:2 signal. If there are errors in this
timecode, it changes to the LTC input. Finally, if there are also errors at
this input or if no signal is present, the DV-Bridge+ itself generates the
time codes in both standards. If you set the first dip switch to MAN, the
second dip switch lets you select manually the appropriate time code
source. In any case, both kinds of time code (LTC and DVITC) are
generated whatever the conversion mode.

The RS422 switch lets you choose the way that you will control the DV­Bridge+ and the video devices that are attached to it.

•

If you set this switch to CONTROLLING, you are able to control
the DV-Bridge+ and a 4:2:2 VTR via its serial port through the iLink
as if it were a DV VTR. Table 3.1 shows the DV device commands
that are supported under this option by the DV-Bridge+.

•

If you set this switch to TRIBUTARY, you can control the DV­Bridge+ and a DV VTR by its iLink port through the RS-422 link as
if it were a 4:2:2 VTR. Be careful to plug only one IEEE-1394
device into the DV-Bridge+ in this mode. This device should be a
DV VTR if you want to be able to control it. Table 3.2 shows the
Sony protocol commands that are supported under this option by
the DV-Bridge+.

3.3 Device Control

The DV-Bridge+ now supports most AV/C commands on the iLink.
When using this protocol to communicate with the DV-Bridge+, you
should consider it as a VTR and use the appropriate AV/C commands

GUIDE TO INSTALLATION AND OPERATION

12 | DV Bridge+

for this type of AV device. The following AV/C commands can be
associated to these modes.

Table 3.1

DV Device Control (IEEE-1394 AV/C VTR Commands) in

controlling mode

Supported DV Device Commands

(IEEE-1394 VTR AV/C Commands)

(syntax:

NAME

(opcode,first operand))

ABSOLUTE TRACK NUMBER

(52h,71h)

CONNECT AV

(20h,XXh)

INPUT PLUG SIGNAL FORMAT

(19h,XXh)

INPUT SIGNAL MODE

(79h,FFh)

MEDIUM INFO

(DAh,7Fh)

OUTPUT PLUG SIGNAL FORMAT(18h,XXh)

OUTPUT SIGNAL MODE

(78h,FFh)

PLAY FASTEST FORWARD

(C3h,3Fh)

PLAY FASTEST REVERSE

(C3h,4Fh)

PLAY FORWARD

(C3h,75h)

SDI to DV

PLAY FORWARD PAUSE

(C3h,7Dh)

SDI to DV

RECORD

(C2h,75h)

DV to SDI

RECORD PAUSE

(C2h,7Dh)

DV to SDI

PLAY NEXT FRAME

(C3h,30h)

PLAY PREVIOUS FRAME

(C3h,40h)

WIND FAST FORWARD

(C4h,75h)

WIND REWIND

(C4h,65h)

WIND STOP

(C4h,60h)

SDI to SDI

RECORDING SPEED

(DBh,7Fh)

SUBUNIT INFO

(31h,XXh)

TIME CODE

(51h,71h)

UNIT INFO

(30h,FFh)

Mode

GUIDE TO INSTALLATION AND OPERATION

DV Bridge + | 13

Table 3.2

Sony Protocol Commands supported

4 Troubleshooting

1

- When using some camcorder models as a DV source, the DV
signal may be lost if you try to unplug the iLink cable from the DV­Bridge+ during the transmission. To recover from this situation, turn the
camcorder off and then on again.

2

- Macintosh users will have some problems if they try to toggle the
video format (525 to 625 or 625 to 525) in the same session; they will
not be able to correctly process the video sequences in the new format.
The DV-Bridge+ must be powered on and in the right video format
(even if no input signal is connected to the unit) before attempting to
start the computer and launch the editing software. Additionally, when
no input signal is connected, the DV-Bridge+’s default line format will

Supported Sony Protocol Commands

(as defined for BVW-75 VTR)

(syntax:

NAME

(first opcode, second opcode, ...))

FAST FORWARD

(20h,10h)

JOG FORWARD

(2Xh,11h)

*

JOG REVERSE

(2Xh,21h)*

PLAY

(20h,01h)

DV to SDI

REC

(20h,02h)

SDI to DV

REWIND

(20h,20h)

SHUTTLE FORWARD

(2Xh,13h)

*

SHUTTLE REVERSE

(2Xh,23h)*

STATUS SENSE

(61h,20h)

STOP

(20h,00h)

SDI to SDI

TIMECODE GEN DATA SENSE

(61h,0Ah)

VAR FORWARD

(2Xh,12h)

*

VAR REVERSE

(2Xh,22h)*

Mode

* These commands can have a different effect on the DV-Bridge+

than on a real 4:2:2 VTR

GUIDE TO INSTALLATION AND OPERATION

14 | DV Bridge+

still be detected by the computer, causing the same problem if it is not
the format that the editing software will use. Set the required default line
format by using the DEFAULT switch on the underside of the DV­Bridge+.

This issue is well known and documented on the Apple web site for any
kind of DV source.

GUIDE TO INSTALLATION AND OPERATION

DV Bridge + | 15

5 Specifications

DV INPUT/OUTPUT
Signal(2): DV on IEEE-1394/i.LINK/Firewire
Connectors: 4 pin and 6-pin IEEE-1394 sockets

INPUT

Video input

Video signal: 4:2:2 SMPTE 259M-C (270 Mbps)
Cable length: 250m (850') (Belden 8281)
Return loss: >15 dB up to 270 MHz

Audio input

Audio signal: AES-3id-1995 (SMPTE 276M)
Level: 1.0 Vp-p
Impedance: 75 Ω unbalanced
Sampling rate: 32, 44.1, 48 kHz

DIGITAL OUTPUT

Video output

Video signal: 4:2:2 SMPTE 259M-C (270 Mbps)
Return loss: >15 dB up to 270 MHz

Audio output

Audio signal: AES-3id-1995 (SMPTE 276M)
Level: 1.0 Vp-p
Impedance: 75 Ω unbalanced

Sampling rate: 32, 44.1, 48 kHz
Jitter: < 0.3 UI

ANALOG OUTPUT

Video output

Video signal: NTSC (525/60) SMPTE 170M

PAL (625/50) ITU-R BT.470-6.
Return loss: >20 dB up to 5 MHz
Video signal: S-Video (Y-C)
Return loss: >20 dB up to 5 MHz
Connector: 4 pin mini-DIN

Audio output

Audio signal: Stereo unbalanced line out
Level: 3.5 Vp-p

GUIDE TO INSTALLATION AND OPERATION

16 | DV Bridge+

PROCESSING PERFORMANCE
Compression: DV format at 25 Mbps per DV Blue Book

and DVCPRO

DV 4:1:1 in NTSC, 4:2:0 in PAL,

DVCPRO 4:1:1 in PAL

Delay: DV→SDI mode: 1.5 frames (TBC)

SDI→DV mode: 1.5 frames (TBC)

SDI SDI mode: 2 µs (TBC)

ANALOG OUTPUT QUANTIZATION
Video: 8 bits
Audio: 16 bits
Physical size: 190 mm X 115 mm X 40 mm (7.5" X 4" X

1.6")

ELECTRICAL
Power input range: 100-240 V / 50-60 Hz
Power: 13 W