DV-Bridge+

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 To/From

Digital

Audio-Video

Codec

Miranda

Technologies inc.

3499 Douglas B. Floreani

St-Laurent, Québec, Canada H4S 1Y6

Tel. 514-333-1772

Fax. 514-333-9828 www.miranda.com

GUIDE TO INSTALLATION AND OPERATION

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.

DV Bridge + | i

GUIDE TO INSTALLATION AND OPERATION

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

ii | DV Bridge+

GUIDE TO INSTALLATION AND OPERATION

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

DV Bridge + | iii

GUIDE TO INSTALLATION AND OPERATION

iv | DV Bridge+

GUIDE TO INSTALLATION AND OPERATION

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

DV Bridge + | v

GUIDE TO INSTALLATION AND OPERATION

vi | DV Bridge+

GUIDE TO INSTALLATION AND OPERATION

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. DV-

Bridge+ 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 IEEE-

1394 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.

DV Bridge + | 1

GUIDE TO INSTALLATION AND OPERATION

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

2 | DV Bridge+

GUIDE TO INSTALLATION AND OPERATION

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 DV-

Bridge+ 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

DV Bridge + | 3

GUIDE TO INSTALLATION AND OPERATION

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 Editing System

Source

DV/CONTROL 4:2:2+AES+LTC

RS-422 SERIAL PORT

Studio VTR or Other

4:2:2 + AES Destination

Destination

NTSC/PAL

& Audio

Analog Monitor

Monitoring

4 | DV Bridge+

GUIDE TO INSTALLATION AND OPERATION

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

4:2:2+AES+

LTC

4:2:2 Editing System

Source

RS-422 SERIAL

PORT

DV/CONTROL

DV VTR

Destination

O R

DV Camcorder

NTSC/PAL

& Audio

Analog Monitor

Monitoring

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

DV Camcorder

Source

DV

DV VTR

4:2:2+AES+LTC

Studio VTR or Other

4:2:2 + AES Destination

Destination

NTSC/PAL

& Audio

Analog Monitor

Monitoring

DV Bridge + | 5

GUIDE TO INSTALLATION AND OPERATION

Figure 2.5 Transferring from SDI+AES+LTC to DV

DV Camcorder

Destination

DV

Studio VTR or Other

4:2:2 + AES Destination

Source

4:2:2

+ AES

+ LTC

DV VTR

NTSC/PAL

& Audio

Analog Monitor

Monitoring

Figure 2.6 Dubbing from DV to Consumer VCR (VHS or S-VHS)

DV Camcorder

Source

DV

DV VTR

NTSC/PAL/S-Video

& Audio

Consumer VCR or VHS/SVHS

Destination

6 | DV Bridge+

GUIDE TO INSTALLATION AND OPERATION

Figure 2.7 Monitoring a DV to DV transfer

DV Camcorder

Source

DV

DV VTR

Destination

NTSC/PAL

& Audio c

Analog Monitor

Monitoring

DV Bridge + | 7

GUIDE TO INSTALLATION AND OPERATION

8 | DV Bridge+

GUIDE TO INSTALLATION AND OPERATION

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

Mode selection pushbutton

Mode

LEDs

Signal Status LEDs

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).

DV Bridge + | 9

GUIDE TO INSTALLATION AND OPERATION

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 present 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

10 | DV Bridge+

GUIDE TO INSTALLATION AND OPERATION

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 DV-

Bridge+ 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 DV-

Bridge+ 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

DV Bridge + | 11

GUIDE TO INSTALLATION AND OPERATION

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 Com m ands

(IEEE-1394 VTR AV/C Commands)

M ode

(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 FORW ARD (C3h,3Fh)

PLAY FASTEST REVERSE (C3h,4Fh)

PLAY FORW ARD (C3h,75h)

SDI to DV

PLAY FORW ARD 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)

W IND FAST FORW ARD (C4h,75h)

W IND REW IND (C4h,65h)

W IND STOP (C4h,60h)

SDI to SDI

RECORDING SPEED (DBh,7Fh)

SUBUNIT INFO (31h,XXh)

TIME CODE (51h,71h)

UNIT INFO (30h,FFh)

12 | DV Bridge+

GUIDE TO INSTALLATION AND OPERATION

Table 3.2 Sony Protocol Commands supported

Supported Sony Protocol Commands

(as defined for BVW-75 VTR)

Mode

(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)*

* These commands can have a different effect on the DV-Bridge+ than on a real 4:2:2 VTR

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 DV-

Bridge+ 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

DV Bridge + | 13

GUIDE TO INSTALLATION AND OPERATION

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 DV-

Bridge+.

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

14 | DV Bridge+

GUIDE TO INSTALLATION AND OPERATION

5 Specifications

DV INPUT/OUTPUT

Signal(2):

Connectors:

INPUT

Video input

Video signal:

Cable length:

Return loss:

Audio input

Audio signal:

Level:

Impedance:

Sampling rate:

DIGITAL OUTPUT

Video output

Video signal:

Return loss:

Audio output

Audio signal:

Level:

Impedance:

Sampling rate:

Jitter:

ANALOG OUTPUT

Video output

Video signal:

Return loss:

Video signal:

Return loss:

Connector:

Audio output

Audio signal:

Level:

DV on IEEE-1394/i.LINK/Firewire

4 pin and 6-pin IEEE-1394 sockets

4:2:2 SMPTE 259M-C (270 Mbps)

250m (850') (Belden 8281)

>15 dB up to 270 MHz

AES-3id-1995 (SMPTE 276M)

1.0 Vp-p

75

Ω unbalanced

32, 44.1, 48 kHz

4:2:2 SMPTE 259M-C (270 Mbps)

>15 dB up to 270 MHz

AES-3id-1995 (SMPTE 276M)

1.0 Vp-p

75

Ω unbalanced

32, 44.1, 48 kHz

< 0.3 UI

NTSC (525/60) SMPTE 170M

PAL (625/50) ITU-R BT.470-6.

>20 dB up to 5 MHz

S-Video (Y-C)

>20 dB up to 5 MHz

4 pin mini-DIN

Stereo unbalanced line out

3.5 Vp-p

DV Bridge + | 15

GUIDE TO INSTALLATION AND OPERATION

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:

Audio:

8 bits

16 bits

Physical size:

1.6")

190 mm X 115 mm X 40 mm (7.5" X 4" X

ELECTRICAL

Power input range:

Power:

100-240 V / 50-60 Hz

13 W

16 | DV Bridge+