CCS, CCS CoPilot, CCS Navigator, CCS Pilot, Command Control System,
CineTone, CinePhase, CineSound, DigiBus, DigiPeek, Digital Glue,
DigiWorks, DTV Glue, EventWORKS, EZ HD, Genesis, HDTV Glue,
Image Q, Inca, Inca Station, InfoCaster, Inscriber, Inscriber CG—FX,
Integrator, LeFont, Leitch, LogoMotion, MediaFile, MIX BOX, NEO, the
NEO design, NEOSCOPE, NewsFlash, Nexio, Opus, Panacea,
PanelMAPPER, Portal, PROM-Slide, RouterMAPPER, RouterWORKS,
Signal Quality Manager, SpyderWeb, SuiteView, TitleMotion,
UNIFRAME, Velocity, VelocityHD, VideoCarte, Videotek, and X75
are trademarks of Leitch Technology International Inc. which may be
registered in the United States, Canada, and/or other countries. All other
trademarks are the property of their respective owners.
Copyright 2005, Leitch Technology International Inc. All rights reserved.
This publication supersedes all previous releases. Printed in Canada.
Warranty Information
The Leitch Limited Warranty Policy provides a complete description of
your warranty coverage, limitations, and exclusions, as well as
procedures for obtaining warranty service. See the inside back cover of
this manual for a warranty summary. To view the complete warranty,
visit www.leitch.com>Support>Warranties
.
DVR-3901 Installation and Operation Manualii
Contents
Trademarks and Copyrights .................................................................... ii
Warranty Information ............................................................................. ii
Preface
Manual Information .............................................................................. vii
Purpose ........................................................................................... vii
Audience ........................................................................................ vii
Revision History ........................................................................... viii
Writing Conventions ....................................................................... ix
Replacing a DVR-3901 Hard Drive ...................................................... 88
viDVR-3901 Installation and Operation Manual
Manual Information
Purpose
Preface
Audience
This manual details the features, installation, operation, maintenance,
and specifications of the NEO™ DVR-3901 Digital Video Recorder.
This manual is written for engineers, technicians and operators
responsible for the installation, setup, maintenance, and operation of the
NEO™ DVR-3901 Digital Video Recorder.
DVR-3901 Installation and Operation Manualvii
Preface
Revision History
Table P-1. Revision History
EditionDateRevision History
Edition ADecember 2003Initial Release
Edition BFebruary 2004Addition of NeoVR Control Center Lite
CD-ROM and installation instructions for
Adobe Acrobat Reader®
Edition CJuly 2004New material:
• Off-line media transfer through FTP
• UDP control through Ethernet
• Audio level control
• Video level and hue controls
• On-screen display (OSD) added to
monitoring video, showing time code,
operation status, and audio meter
• Built-in frame synchronizer in EE mode
Edition DMarch 2005
Edition EAugust 2005Replaced 40 GB hard drive with 80 GB
• Addition of DvrPlyCtrl and DvrRecCtrl
parameter
• Minor corrections to content
hard drive
viiiDVR-3901 Installation and Operation Manual
Writing Conventions
This manual adheres to the following writing conventions.
Table P-2. Writing Conventions
Term or ConventionDescription
BoldIndicates dialog box, property sheet, field,
ItalicsIndicates email addresses, names of books
CAPSIndicates a specific key on the keyboard,
Preface
button, check box, list box, combo box,
menu, submenu, window, list, and
selection names
and publications, and first instances of new
terms and specialized words that need
emphasis
such as ENTER, TAB, CTRL, ALT,
DELETE
Code
>Indicates the direction of navigation
hyperlinkIndicates a jump to another location within
Internet address
Note
Indicates variables or command-line
entries, such as a DOS entry or something
you type into a field
through a hierarchy of menus and
windows.
the electronic document or elsewhere
Indicates a jump to a Web site or URL
Indicates important information that helps
to avoid and troubleshoot problems
DVR-3901 Installation and Operation Manualix
Preface
Obtaining Leitch Documents
Installation, navigation, configuration, and setup information is now
included in the NEO FR-3901, FR-3903, and FR-3923 Mounting Frames Installation and Operation Manual. If your current NEO frame
manual is Edition A, B, C, or D, you will need to download an updated
version from the Leitch Web site to access this information.
Leitch documents can be viewed or downloaded from the Leitch Web
site at www.leitch.com
Alternatively, contact your Leitch customer service representative to
request a document.
(go to Support>Documentation).
xDVR-3901 Installation and Operation Manual
Unpacking the Module
Before you install and configure NEO modules, follow these steps:
1.Check the equipment for any visible damage that may have
occurred during transit.
2.Confirm that you have received all items listed on the packing list.
3.Remove the anti-static shipping pouch, if present, and all other
packaging material.
4.Retain the original packaging materials for possible reuse.
5.Contact your Leitch sales representative if parts are missing or
damaged.
Keep at least one set of original packaging in the event that a product
needs to be returned for service. If the original package is not available,
you can purchase replacement packaging from Leitch Technology.
Otherwise, you can supply your own packaging as long as it meets the
following criteria:
Preface
•The packaging must be able to withstand the product’s weight.
•The product must be held rigid within the packaging.
•There must be at least two inches (five centimeters) of space
between the product and the container.
•The corners of the product must be protected.
If the product is still within the warranty period, Leitch Technology will
return it to you by prepaid shipment after servicing.
DVR-3901 Installation and Operation Manualxi
Preface
Safety Standards and Compliances
See the NEO Safety Instructions and Standards Manual to find the
safety standards and compliances for this NEO series product. A safety
manual is shipped with every FR-3901, FR-3903, and FR-3923 Mounting Frames Installation and Operation Manual and can be
downloaded from the Leitch Web site at www.leitch.com
contact your Leitch customer service representative for a copy of this
safety manual.
Safety Terms and Symbols
This manual uses the following safety terms and symbols. See your
NEO Safety Instructions and Precautions Guide for more information.
Table P-3. Safety Terms and Symbols Used in Manual
. Alternatively,
WARNING:
Statements identifying conditions or practices that can result in
personal injury or loss of life: High voltage is present. Uninsulated
dangerous voltage within the product’s enclosure may be sufficient
to constitute a risk of electric shock to persons.
CAUTION:
Statements identifying conditions or practices that can result in
damage to the equipment or other property: Important operating
and maintenance (servicing) instructions in the literature
accompanying the product.
xiiDVR-3901 Installation and Operation Manual
Preface
Restriction on Hazardous Substances (RoHS)
Directive
Directive 2002/95/EC—commonly known as the European Union (EU)
Restriction on Hazardous Substances (RoHS)—sets limits on the use of
certain substances found in electrical and electronic equipment. The
intent of this legislation is to reduce the amount of hazardous chemicals
that may leach out of landfill sites or otherwise contaminate the
environment during end-of-life recycling. The Directive takes effect on
July 1, 2006, and it refers to the following hazardous substances:
•Lead (Pb)
•Mercury (Hg)
•Cadmium (Cd)
•Hexavalent Chromium (Cr-V1)
•Polybrominated Biphenyls (PBB)
•Polybrominated Diphenyl Ethers (PBDE)
In accordance with this EU Directive, all Leitch Technology products
sold in the European Union will be fully RoHS-compliant and
“lead-free.” (See the Leitch Web site, www.leitch.com
information on dates and deadlines for compliance.) Spare parts
supplied for the repair and upgrade of equipment sold before
July 1, 2006 are exempt from the legislation. Leitch equipment that
complies with the EU directive will be marked with a RoHS-compliant
symbol, as shown in Figure 1.
Figure 1. RoHS Compliance Symbol
, for more
DVR-3901 Installation and Operation Manualxiii
Preface
Waste from Electrical and Electronic
Equipment (WEEE) Directive
The European Union (EU) Directive 2002/96/EC on Waste from
Electrical and Electronic Equipment (WEEE) deals with the collection,
treatment, recovery, and recycling of electrical and electronic waste
products. The objective of the WEEE Directive is to assign the
responsibility for the disposal of associated hazardous waste to either
the producers or users of these products. Effective August 13, 2005,
producers or users will be required to recycle electrical and electronic
equipment at end of its useful life, and must not dispose of the
equipment in landfills or by using other unapproved methods. (Some
EU member states may have different deadlines.)
In accordance with this EU Directive, Leitch Technology International,
Inc. and other companies selling electric or electronic devices in the EU
will affix labels indicating that such products must be properly
recycled. (See the Leitch Web site, www.leitch.com
information on dates and deadlines for compliance.) Contact your local
Leitch sales representative for information on returning these products
for recycling. Leitch equipment that complies with the EU directive will
be marked with a WEEE-compliant symbol, as shown in Figure 2.
, for more
Figure 2. WEEE Compliance Symbol
xivDVR-3901 Installation and Operation Manual
Overview
Chapter 1
Introduction
The DVR-3901 module is a digital video recorder designed for NEO
1RU and 3RU rack-mounted frames, but that occupies only a single
slot.
This chapter covers the following topics:
•“Product Description” on page 2
•“Main Features” on page 3
•“Front and Back Modules” on page 4
•“Back Module” on page 5
•“Signal Flow” on page 6
•“Function Descriptions” on page 7
•“Operation Modes” on page 9
•“NEO-VR Command Center
TM
Application” on page 10
DVR-3901 Installation and Operation Manual1
Chapter 1: Introduction
Note
Installation, navigation,
configuration, and setup
information is now included in
the NEO FR-3901, FR-3903,
and FR-3923 Mounting Frames
Installation and Operation
Manual. If your current NEO
frame manual is Edition A, B,
C, or D, you will need to
download an updated version
from the Leitch Web site
(www.leitch.com
information.
) to access this
See the FR-3901, FR-3903, and FR-3923 Installation and Operation Manual for information about NEO frames. The frame manual includes
information about these items:
•General information about module unpacking, installation,
removal, navigation, configuration, and setup
•Card-edge screen savers
•State recovery parameters
•Fan modules
•Resource modules
•Alarm interconnect modules
•Power supplies
•Servicing instructions
Product Description
The NEO DVR-3901 Digital Video Recorder is a multifunction digital
Note
In Europe and Asia the 2.5 in.
(6.35 cm) hard drive is
described as 9.5 mm.
video recorder that can, in many applications, replace a VTR. It is
designed to complement the modular line of video, audio, and signal
processing products available for use in the NEO frame. The
DVR-3901 comes with a front module, a back module, and two fixed
2.5 in. (6.35 cm) IDE hard drives that are mounted on the NEO DVR
front module.
The DVR-3901 comes with a VFD display at the front edge of the card.
This display provides a way for you to locally monitor and control the
operation of this module.
2DVR-3901 Installation and Operation Manual
Main Features
Note
Older versions of DVR-3901
shipped with two 40 GB hard
drives.
Chapter 1: Introduction
These are the main features of the DVR-3901 module:
•Disk-based video recorder that provides instant access to any video
frame stored on the disk
•Recording and playback like a VTR, with support for slow motion,
variable speed playback, and jog and shuttle
•Two operation modes: Playlist mode and BVW/Odetics mode
•Two 80 GB onboard 2.5 in. (6.35 cm) IDE hard drives that can
operate in drive-spanning Merged Mode
•Motion JPEG compression for storage with compression ratios
ranging from 4:1 to 10:1
•One channel video and one stereo audio recording/playback (not
simultaneously)
•Video line standards: 525 and 625
•SDI Video input and output
•AES and embedded audio input and output
•LTC input and output
•NTSC and PAL-B monitoring video standards, with on-screen
display of time code, operation status, and audio meter. The audio
meter can be either a VU meter or a PPM meter
•Monitoring mono/mixed audio on 1 RCA jack
•Genlock to reference video or SDI video input
•Video and audio processing-and-amplifier (proc amps) for
recording path and playback path
•Built-in video frame synchronizer in EE mode
•Sony 9-pin VTR Protocol via RS-422
•UDP control over ethernet
•Capability for configuration and status via both the card edge
interface and Leitch CCS software
•10/100 Ethernet connection for compressed video file transfer in or
out of the disk
DVR-3901 Installation and Operation Manual3
Chapter 1: Introduction
Front and Back Modules
Front Module
NEO front modules are designated by the suffix “-FM.” For example,
the front module of the DVR-3901 is the “DVR-3901-FM.” Figure 1-1
illustrates the position of the LEDs and card-edge controls on the
DVR-3901-FM.
Front view
Escape button
Nav+/Nav- switch
(up/down)
64 X 16 VFD
submodule
Top view
Module indicators
Remote/Local switch
(hidden behind extractor)
Visible display area
Enter button
Card extractor
Remote/Local
switch
SDI In present
Auto
720p
1080i
1035i
1080psf
Reference present
Freeze
DARS present
(not functi onal)
LEDs
Escape button
Nav+/Nav- switch
(up/down)
Figure 1-1. Front Module of the DVR-3901
4DVR-3901 Installation and Operation Manual
Nav +
Nav -
Enter
Esc
MAJOR
ALARM
Enter button
Major
Alarm
MINOR
ALARM
Minor
Alarm
Power
POWER
REM LOC
Module
Status
MODULE
STATUS
Extractor handle
SW1
Back Module
Chapter 1: Introduction
In the NEO frame, back modules are placed directly behind the front
modules. Back modules are designated by the suffix “-BM.” For
example, the back module of the DVR-3901 is the “DVR-3901-BM.”
The back module connections are shown below.
OUT
IN
+ φ −
+ φ −
LTC
GENLOCK
RS-422
10T/100TX ET HERNET
Figure 1-2. DVR-3901-BM Back Module
MONITOR
VIDEO
OUT
SDI
IN
SDI
MONITOR
AUDIO
OUT
IN
+ φ −
+ φ −
AES
DVR-3901
DVR-3901 Installation and Operation Manual5
Chapter 1: Introduction
Signal Flow
Figure 1-3 is a functional block diagram of the DVR-3901 module.
SDI IN
AES IN
LTC IN
Genlock
Monitor
Video
SDI OUT
AES OUT
Monitor
Audi o
LTC OUT
Card Edge/
CCS Controls
RS-422
10/100 Ethernet
SDI RX
AES RX
LTC RX
GL RX
Composite
Encoder
SDI TX
AES TX
Audio DAC
LTC TX
Module
Controller
EDH
Insertion
Video
Proc-Amp
Audio
Demux
On Screen
Display
Audio
Embedder
1
0
AES/EMB
Frame Sync
1
0
EE Mode
1
0
1
0
Video
Compression
Audio
Proc-Amp
Video
Decompress
Video
p
Proc-Amp
Audio
Proc-Amp
Media
Mux
Media
DeMux
FTP
online
IDE
Control
online
offline
offline
T :
B :
Figure 1-3. Functional Block Diagram of the DVR-3901 Module
6DVR-3901 Installation and Operation Manual
Function Descriptions
The primary video and audio interfaces of the DVR-3901 are digital.
Analog video and audio outputs are provided for monitoring purposes.
“Functions and Controls” on page 57 provides more details about the
functions and controls.
Video
The DVR-3901 supports one digital video channel, that is, one SDI in
and one SDI out. (One composite video output is provided for
monitoring purposes.) You can select between 525 or 625 line format
for the video system. Video proc amps are available on recording and
playback. Use the proc amp to adjust contrast, brightness, hue and color
saturation.
See “Video” on page 58 for more information.
Chapter 1: Introduction
Audio
Monitor Output
Genlock
Time Code
The DVR-3901 supports one audio channel pair, which can consist of
one stereo pair or two independent audio channels. You can use the
provided RCA jack to monitor mono audio. Audio proc amps are
available on recording and playback. Use the proc amps to adjust gain
and phase inversion.
See “Audio” on page 59 for more information.
Monitor Video and Monitor Audio outputs are analog. Use the video
monitor out to view time code, DVR status and audio meter.
Use Genlock to lock the playback video to the selected video source on
the DVR-3901. See “Genlock and DARS” on page 60 for more
information.
DVR-3901 Installation and Operation Manual7
The DVR-3901 supports LTC input and output. The use of time code
differs in different operation modes. See “Online Operation Modes” on
page 65 for details.
Chapter 1: Introduction
Video Compression
The DVR-3901 uses the industry standard M-JPEG (baseline) video
compression method. Closed captions and other VBI lines are
compressed using M-JPEG and retained with the compressed video.
See “Video Compression” on page 61 for more information.
Storage
The compressed video, PCM audio, and time code are stored on two
Note
In Europe and Asia the 2.5 in.
(6.35 cm) hard drive is
described as 9.5 mm.
on-board 2.5 in. (6.35 cm) IDE hard drives. One or both hard drives can
be connected online for real-time recording or playback. See “Storage”
on page 62 for more information.
Controls and Operations
Local Card-Edge Controls
CCS Pilot
TM
and CCS NavigatorTM
RS-422 Controls
You can operate and control the DVR-3901 through the following
methods:
Local card-edge controls let you customize configurations and settings
and provide card status information and alarms. All the parameters are
accessible at the card edge. See “Operation” on page 27 for more
information.
These PC GUI software packages can be used to control, configure and
monitor various Leitch products. Please see www.leitch.com
for more
information. The NEO DVR-3901 can be controlled by all versions of
Leitch CCS. All the parameters available at card-edge are accessible
from the CCS software.
The DVR-3901 responds to a RS-422 controller (for example an
automation controller) through an RS-422 port using Sony protocol. It
supporst a selection of Sony and Odetics™ commands. The DVR-3901
package includes a straight-through RS-422 cable. See “Remote
Operation” on page 45 for more details.
8DVR-3901 Installation and Operation Manual
PC Controls
Ethernet Controls
Offline File Transfer
Chapter 1: Introduction
A PC application using Sony protocol can control the DVR-3901
through the RS-422 port. An RS-232 to RS-422 conversion cable,
included in the DVR-3901 package, should be used to connect the PC to
the DVR-3901 RS-422 port.
See “Remote Operation” on page 45 for more details.
In addition to RS-422 control, you can control the DVR-3901 through
UDP/IP communication. This method supports the same commands as
the RS-422 controls, but they are wrapped differently.
See “UDP Control” on page 49 for details on the UDP communication
protocol.
Operation Modes
The DVR-3901’s two drives can be put offline individually. Once a
drive is offline, you can transfer video/audio clips on that drive in and
out of the drive through the Ethernet port.
See “Offline File Transfer” on page 69 for details.
The DVR-3901 operates in two different modes: Playlist mode and
BVW/Odetics mode. It can be controlled by a RS-422 controller or an
Ethernet controller in either mode.
See “Online Operation Modes” on page 65 for more details.
DVR-3901 Installation and Operation Manual9
Chapter 1: Introduction
NEO-VR Command CenterTM Application
NEO-VR Command Center LiteTM is PC application software that
Note
For more information about the
more robust NEO-VR
Command CenterTM, please
contact your Leitch sales
representative.
provides a means to configure and control the DVR-3901 from a PC.
The CD-ROM is attached to the inside back cover of this manual, and
includes the NEO-VR Command Center Lite
TM
Command Center Lite
Command Center Lite
NEO-VR Command Center Lite
do not have Adobe Acrobat
user manual in pdf format, and NEO-VR
TM
online help. For information on installing
TM
, please see the user manual. If you
TM
installed on your system, see “Installing
TM
program, the NEO-VR
Adobe Acrobat Reader” on page 10 for installation instructions.
NEO-VR Command Center
TM
is the full version of the software that
can only be enabled by a USB dongle plugged into the PC. It is
dedicated to playlist mode operations and supports playlist generation,
playlist editing, clip trimming, shotbox, and FTP. Read the Command
Center manual from the Leitch website for more information.
Installing Adobe Acrobat Reader
Adobe Acrobat Reader is available on the NeoVR Command Center
Lite Installation CD. To install the Acrobat Reader software from the
Installation CD, complete these steps:
Use Windows Explorer to find the Adobe Acrobat Reader setup file,
rp500enu.exe, on the Installation CD at this location:
third party\Adobe\rp500enu.exe
Double-click the rp500enu.exe file icon to start setup.
Follow the instructions that appear on the computer monitor.
10DVR-3901 Installation and Operation Manual
Overview
Caution
Before installation, please read
the NEO Safety Instructions and Precautions Manual. This
document contains important
information about the safe
installation and operation of
NEO products.
Chapter 2
Installation and Removal
Installation, navigation, configuration, and setup information is now
included in the NEO FR-3901, FR-3903, and FR-3923 Mounting Frames Installation and Operation Manual. If your current NEO frame
manual is Edition A, B, C, or D, you will need to download an updated
version from the Leitch Web site (www.leitch.com
information.
In this chapter, you can find information on the following topics:
•“Checking the Packing List” on page 12
) to access this
•“Installing DVR-3901 Modules” on page 12
•“Removing DVR-3901 Modules” on page 12
•“Making Connections” on page 13
•“Setting Jumpers” on page 16
•“Upgrading DVR-3901 Firmware” on page 19
•“Correcting a Failed Upgrading Procedure” on page 23
DVR-3901 Installation and Operation Manual11
Chapter 2: Installation and Removal
Checking the Packing List
The NEO DVR-3901 module package includes these items:
Note
In Europe and Asia the 2.5 in.
(6.35 cm) hard drive is
described as 9.5 mm.
Note
Older versions of DVR-3901
shipped with two 40 GB hard
drives.
•One DVR-3901-FM front module
•One DVR-3901-BM back module
•One DVR-3901 Installation and Operation Manual per order
•Two fixed 2.5 in. (6.35 cm) IDE 80 GB hard drives mounted on the
NEO DVR front module
•One 10 ft (3.05 m) RS-422 cable
•One 6 ft (1.83 m) PC serial control cable (RS-232 to
RS-422 conversion)
•Four mating connectors for AES and LTC ports
Installing DVR-3901 Modules
This module requires no specialized installation procedures. For general
information about installing NEO modules, see your NEO FR-3901,
FR-3903, and FR-3923 Mounting Frames Installation and Operation
Manual.
Removing DVR-3901 Modules
This module requires no specialized removal procedures. For general
information about removing NEO modules, see your NEO FR-3901,
FR-3903, and FR-3923 Mounting Frames Installation and Operation
Manual.
12DVR-3901 Installation and Operation Manual
Making Connections
Either RS-422 or PC serial cables can be used for connections on the
Note
The DVR-3901 can also be
controlled by Ethernet cables
over using UDP. For more
information,
Control” on page 49.
see“UDP
Connecting Using a RS-422 Cable
DVR-3901.
The DVR-3901 is equipped with a 10 ft (3.05 m) long RS-422 cable.
This cable has male connectors on both ends. Plug one end to the DB-9
connector on the back module and fasten the screws. The jumper J6
should be positioned according to “Setting Jumpers” on page 16. Figure
2.6 shows the RS-422 pinouts.
Chapter 2: Installation and Removal
Controlling device
(RS-422 controller) DB9-M
Front view
1
6
RXA
TXB
RXB
TXA
3
2
7
8
1
2
3
4
5
6
7
8
45
9
Frame GND
Receive B
Spare
Transmit B
Receive A
Controlled device
(DVR-3901) DB9-M
Front view
1
6
GND
GND
3
2
7
45
8
1
2
3
4
5
6
7
8
9
TXA
RXB
TXB
RXA
DVR-3901 Installation and Operation Manual13
9
Frame GND
Figure 2-1. RS-422 Cable Pinouts
9
Chapter 2: Installation and Removal
Connecting Using a PC Serial Cable
The DVR-3901 is equipped with a 6 ft (1.83 m) long PC serial control
cable. This cable is male at one end and female at the other end. Plug
the male end to the DB-9 connector on the back module and the other
end to the PC serial port. (See Figure 2-2.)
Controlling device
(PC/RS-232) DB9-F
Front view
5432
9
876
CD
RXD
TXD
DTR
GND
DSR
RTS
CTS
1
2
3
4
5
6
7
8
Controlled device
(DVR-3901/RS-422) DB9-M
Front view
1
132
67
4
89
1
Frame GND
TXA
2
3
RXB
RX_GND
4
Spare
5
6
TX_GND
TXB
7
RXA
8
5
Figure 2-2. PC Serial Conversion Cable Pinouts
Fasten all the screws. The jumper J6 should be positioned according to
“Setting Jumpers” on page 16.
14DVR-3901 Installation and Operation Manual
RI
Shell
9
Frame GND
9
Shell
AES/LTC Mating Connectors
The AES IN, AES OUT, LTC IN, and LTC OUT connectors are special
Note
If you require more AES or LTC
mating connectors, please
contact your Leitch
representative and request part
number ‘Leitch audio 3F.’
3-pin balanced connectors. Their mating connectors are included as
accessories. The audio and LTC cables can be installed onto these
connectors with a slot head screw driver. The polarities for signal
wiring are shown on the connectors themselves.
For LTC cables, the NEO DVR-3901 supports both 600Ω or
Low-Z/Hi-Z cables. See “Setting Jumpers” on page 16 for the correct
impedance matching.
Chapter 2: Installation and Removal
DVR-3901 Installation and Operation Manual15
Chapter 2: Installation and Removal
Setting Jumpers
To achieve your desired configuration, you may need to change the
settings of some, or all, of the J6, J7, J8, and J9 jumpers. There is an
on-board silkscreen describing the jumper settings.
Jumper Locations
The jumpers are located at the rear of the board. (See Figure 2-3 below.)
J6
J7
J8
J9
Jumper
settings
silkscreen
Figure 2-3. Position of Jumpers on the Board
16DVR-3901 Installation and Operation Manual
RS-422 / PC Serial Cable Selection
Follow this procedure to set the J6 jumper for either manual or
automatic selection:
1.Locate jumper J6 on the module. See Figure 2-3 on page 16.
2.Place a jumper on pins 1 and 2 to set the module for RS-422
Note
The white triangle on the
module near the jumper pins
indicates pin 1
selection, or pins 2 and 3 to set the module for PC serial selection.
See Figure 2-4 below.
1 2 31 2 3
RS-422 selection settingPC serial selection setting
Chapter 2: Installation and Removal
Figure 2-4. The J6 Settings for RS-422 and PC serial
selection
LTC Input Termination Selection
Follow this procedure to set the J7 jumper for selecting either Hi-Z or
600Ω shunt impedance for the LTC input port:
1.Locate jumper J7 on the module. See Figure 2-3 on page 16.
Note
The white triangle on the
module near the jumper pins
indicates pin 1.
2.Place a jumper on pins 1 and 2 to set the module for Hi-Z selection,
or pins 2 and 3 to set the module for 600Ω selection.
See Figure 2-5 below.
1 2 31 2 3
Hi-Z selection setting600
Figure 2-5. The J7 Settings for Hi-Z and 600Ω selection
Ω selection setting
DVR-3901 Installation and Operation Manual17
Chapter 2: Installation and Removal
Terminating LTC Output Port (+) Termination
Follow this procedure to set the J8 jumper for either Low-Z or 600Ω
series impedance for the LTC output port (+):
1.Locate jumper J8 on the module. See Figure 2-3 on page 16.
2.Place a jumper on pins 1 and 2 to set the module for Low-Z
Note
The white triangle on the
module near the jumper pins
indicates pin 1.
selection, or pins 2 and 3 to set the module for 600Ω selection.
See Figure 2-6 below.
1 2 31 2 3
Low-Z selection setting600
Figure 2-6. The J8 Settings for Low -Z and 600Ω selection
LTC Output Port (-) Termination
Follow this procedure to set the J9 jumper for either Low-Z or 600Ω
series impedance for the LTC output port (-):
1.Locate jumper J9 on the module. See Figure 2-3 on page 16.
2.Place a jumper on pins 1 and 2 to set the module for Low-Z
Note
The white triangle on the
module near the jumper pins
indicates pin 1.
selection, or pins 2 and 3 to set the module for 600Ω selection.
See Figure 2-7 below.
1 2 31 2 3
Low-Z selection setting600
Ω selection setting
Ω selection setting
18DVR-3901 Installation and Operation Manual
Figure 2-7. The J9 Settings for Low-Z and 600Ω selection
Chapter 2: Installation and Removal
Upgrading DVR-3901 Firmware
Firmware upgrading is a routine procedure that you must perform to
install newer versions of software on the DVR-3901 module. Pilot,
Co-Pilot, or Navigator software applications are required for this
procedure. You can use either the Discovery or the drag-and-drop
method. When performing the upgrading procedure, check the
appropriate readme file to confirm which files are needed. Use care to
ensure that you upload the correct files to the intended module.
If for some reason the upgrade fails, the module may not respond to
controls and will appear to be non-functional. In that event, follow the
procedures described in “Correcting a Failed Upgrading Procedure” on
page 23.
Upgrading the Firmware (Discovery Method)
Follow these steps to upgrade the firmware using the Discovery
method:
1.Download the most recent appropriate upgrade package from the
Leitch Web site or from your CD-ROM, and then unzip the upgrade
package.
2.If the affected module has not been discovered, perform the
Discovery operation, as described in your CCS software
application manual or online help.
3.Double-click the device icon.
The Configuration... window opens. On the Software Upgrade
tab, the /slotx/boot (where x is the slot number) directory appears
in the Select the device directory to transfer to: field.
4.Click Add, and in the Add Upgrade Files box, browse and select
the boot folder in the module’s upgrade; click OK.
The Add Upgrade Files box appears.
5.Select the file and then click OK.
6.Click Perform Transfer and then click Yes .
DVR-3901 Installation and Operation Manual19
This may take several minutes.
7.Wait for the message File transfer to device succeeded in the
status bar.
Chapter 2: Installation and Removal
If an fl0 folder is included in the .zip file, the files within that folder
must now be uploaded as shown below. (In some cases, the readme file
may indicate other separate files must be uploaded instead.)
Follow these steps to upload the remaining files:
1.On the Software Upgrade tab, select the /slotx/fl0 (where x is the
2.Click Add, and in the Add Upgrade Files box, browse and select
3.Click OK.
4.Select the files shown in the Add Upgrade Files box, and then
Caution
You must delete unwanted files
in the Add upgrade files for transfer to device: field before
transferring the files. Otherwise,
the upgrading procedure will
fail.
5.Select and delete unwanted files (for example: vxWorks.lzs) in the
6.Click Perform Transfer and then click Yes .
7.Wait for the message File transfer to device succeeded.
slot number) directory in the Select the device directory to transfer to: field.
the fl0 folder in the module’s upgrade package.
click OK.
Add upgrade files for transfer to device: field by clicking
Remove.
This may take a moment.
8.Click Reboot Device and then click Yes.
9.Wait 30 seconds, and then close the Configuration... box.
The module name appears at the card edge.
20DVR-3901 Installation and Operation Manual
Chapter 2: Installation and Removal
Upgrading the Firmware (Drag-and-Drop Method)
Follow these steps to upgrade the firmware using the drag-and-drop
method:
1.Download the appropriate most recent upgrade package from the
Leitch Web site or from your CD-ROM, and then unzip the upgrade
package.
2.If the affected module has not been discovered by your CCS
software application, enter the Build mode, and then drag or copy
and paste the module’s device icon from the catalog folder into the
Network or Discovery folder.
3.Right-click the device icon and then select Properties.
4.On the NRO or Device tab of the Navigation Properties box, enter
the IP address of the frame that holds the module. (See Figure 2-8.)
Caution
Do not make changes in the
third field (located above and to
the right of the Set Default
button.)
Enter frame IP number here
Do not make changes in
this field
Figure 2-8. Navigation Properties Box
5.In the last field, enter the slot number of the module, and then close
the window.
6.Double-click the device icon.
7.Click Add, and in the Add Upgrade Files box, browse and select
DVR-3901 Installation and Operation Manual21
The Configuration... window opens. On the Software Upgrade
tab, the /slotx/boot (where x is the slot number) directory appears
in the Select the device directory to transfer to: field.
the boot folder in the module’s upgrade.
Chapter 2: Installation and Removal
8.Click OK.
9.Select the file and then click OK.
10. Click Perform Transfer and then click Ye s .
11. Wait for the message File transfer to device succeeded in the
If an fl0 folder is included in the .zip file, the files within that folder
must now be uploaded as shown below. (In some cases, the readme file
may indicate other separate files must be uploaded instead.)
Follow these steps to upload the remaining files:
1.On the Software Upgrade tab, select the /slotx/fl0 (where x is the
The Add Upgrade Files box appears.
This may take several minutes.
status bar.
slot number) directory in the Select the device directory to transfer to: field.
Caution
You must delete unwanted files
in the Add upgrade files for transfer to device: field before
transferring the files. Otherwise,
the upgrading procedure will
fail.
2.Click Add, and in the Add Upgrade Files box, browse and select
the fl0 folder in the module’s upgrade package.
3.Click OK.
4.Select the files shown in the Add Upgrade Files box, and then
click OK.
5.Select and delete unwanted files (for example: vxWorks.lzs) in the
Add upgrade files for transfer to device: field by clicking
Remove.
6.Click Perform Transfer and then click Yes .
7.Wait for the message File transfer to device succeeded.
This may take a moment.
8.Click Reboot Device and then click Yes.
9.Wait 30 seconds and then close the Configuration... box.
The module name appears at the card edge.
22DVR-3901 Installation and Operation Manual
Chapter 2: Installation and Removal
Correcting a Failed Upgrading Procedure
Firmware upgrades may fail in the event of network interruptions,
power failures, or if too much data is uploaded to the NEO module.
Often, uploads of too much data can occur for one of the following
reasons:
•The boot file (typically vxWorks.lzs) was accidentally uploaded
during the fl0 procedure, instead of the boot procedure.
•Files were sent to the wrong NEO module.
•The particular hardware version of the module requires only some
(but not all) of the available fl0 files.
•The upgrade .zip file was mistakenly sent to the module.
All of these problems can be corrected by re-installing the firmware
while in a fail-safe mode, as described in the following pages. When
you are performing this procedure, check the appropriate readme file to
confirm which files are needed. Use care to ensure that you upload the
correct files to the intended module.
Setting the Module to Fail-Safe Loader Mode
Follow these steps to set a NEO module to the fail-safe loader mode:
1.Remove the affected module from the NEO frame.
2.Press the Nav switch down while simultaneously pressing both the
Escape and Enter buttons.
3.While still pressing the buttons and the navigation switch, reinsert
the module into the frame and hold for approximately three seconds
until the display on the module reads Offline-H (or Offline-L)
Upload Required.
Upgrading the Firmware in Fail-Safe Mode
Follow these steps to upgrade the firmware in the fail-safe mode:
Note
To successfully upgrade the
firmware, you must follow these
steps in the exact sequence
described.
1.Download the most recent appropriate upgrade package from the
Leitch Web site or from your CD-ROM, and then unzip the upgrade
package.
DVR-3901 Installation and Operation Manual23
Chapter 2: Installation and Removal
2.If the affected module has not been discovered by your CCS
software application, enter the Build mode, and then drag or copy
and paste the module’s device icon from the catalog folder into the
Network or Discovery folder.
3.Right-click the device icon and then select Properties.
4.On the NRO or Device tab of the Navigation Properties box, enter
the IP address of the frame that holds the module. (See Figure 2-9.)
Caution
Do not make changes in the
third field (located above and to
the right of the Set Default
button.)
Enter frame IP number here
Do not make changes in
this field
Figure 2-9. Navigation Properties Box
5.In the last field, enter the slot number of the module, and then close
the window.
6.Double-click the device icon.
The Configuration... box opens. On the Software Upgrade tab,
the /slotx/boot (where x is the slot number) directory appears in the
Select the device directory to transfer to: field.
24DVR-3901 Installation and Operation Manual
7.Click Add, and in the Add Upgrade Files box, browse and select
the boot folder in the module’s upgrade.
8.Click OK.
9.Select the file and then click OK.
10. Click Perform Transfer and then click Ye s .
This may take several minutes.
11. Wait for the message File transfer to device succeeded in the
status bar.
Rebooting the Module
Follow these steps to reboot the affected NEO module:
Note
Some NEO modules will reboot
automatically. In these cases,
the Reboot button will be
grayed out. During this time, the
module’s card-edge display will
show the word Rebooting
before the name of the module
appears. These modules do not
require the fl0 file.
1.Click Reboot Device, and then click Ye s.
After the module has rebooted, a message box advises you to wait
until the device has rebooted.
2.Wait 30 seconds.
3.On the Software Upgrade tab, select the /slotx/fl0 (where x is the
slot number) directory in the Select the device directory to transfer to: field.
4.Click Add, and then browse and select the fl0 folder in the
module’s upgrade package.
5.Click OK.
6.Select the files shown in the Add Upgrade Files box, and then
click OK.
Chapter 2: Installation and Removal
Caution
You must delete unwanted files
in the Add upgrade files for transfer to device: field before
transferring the files. Otherwise,
the upgrading procedure will
fail.
7.Select and delete unwanted files (for example: vxWorks.lzs) in the
Add upgrade files for transfer to device: field by clicking
Remove.
8.Click Perform Transfer and then click Yes .
9.Wait for the message File transfer to device succeeded.
This may take a moment.
10. Click Reboot Device and then click Yes.
11. Wait 30 seconds, and then close the Configuration... box.
The module name appears at the card edge.
DVR-3901 Installation and Operation Manual25
Chapter 2: Installation and Removal
26DVR-3901 Installation and Operation Manual
Overview
Note
For descriptions of the
most-used functions of the
DVR-3901 and the procedures
for using them,
Functions and Controls of the
DVR-3901” on page 57.
see “Chapter 5:
Chapter 3
Operation
Installation, navigation, configuration, and setup information is now
included in the NEO FR-3901, FR-3903, and FR-3923 Mounting Frames Installation and Operation Manual. If your current NEO frame
manual is Edition A, B, C, or D, you will need to download an updated
version from the Leitch Web site (www.leitch.com
information.
This chapter describes how to operate the DVR-3901 module using
card-edge controls.
) to access this
The following topics are found in this chapter:
•“Operation Notes” on page 28
•“Navigating the Operator and All Lists” on page 29
•“Operator and All List Parameters” on page 30
•“Setup Parameters” on page 40
•“Alarms” on page 41
•“Module Status LEDs” on page 43
DVR-3901 Installation and Operation Manual27
Chapter 3: Operation
Operation Notes
When using the DVR-3901 module, observe the following operation
Caution
Failure to observe these
Operation Notes will result in
accidental changes to the
module’s parameter settings.
notes:
•If you change parameters within 16 seconds after the
•Although your parameter changes seem to take effect immediately,
•When you set the RstSetting (Restore Settings) parameter to Ye s ,
NEO VR banner first appears on the VFD, your changes will not be
saved. Parameter changes that you make after this 16-second delay
will be saved and restored if the module loses power and must be
restarted.
the settings are only saved after 20 seconds of inactivity.
the module takes several seconds to reset all of the parameters.
(Setup parameters are not affected by this restore setting mode.)
See “Operator and All List Parameters” on page 30 for a list of the
default settings that you activate when setting RstSetting to Ye s .
•Changes in some parameters will cause additional changes in other
parameters, or lock them out entirely. See “Functions and Controls”
on page 57 for more information on these cross-functional
parameter changes.
State Recovery Parameter Availability
The parameter settings for this module are automatically saved onto the
3901RES-E resource module installed in your NEO frame every five
minutes. If a module should fail and be replaced with a cold spare, the
state parameters can be automatically recovered. For more information
on this feature, see the NEO FR-3901, FR-3903, and FR-3923 Mounting Frames Installation and Operation Manual (Edition E and
above).
28DVR-3901 Installation and Operation Manual
Navigating the Operator and All Lists
To navigate, and then view or change a parameter from the Operator or
All Lists, follow these steps:
1.Open the front panel of the NEO frame.
2.Press any card-edge control to turn on the VFD screen.
The message NEO VR appears. If a previous user has left the
display at a different parameter name, repeatedly press the Escape
button until the message NEO VR appears.
3.Push the Enter button.
Note
After several seconds of
inactivity, a scrolling message
will appear, describing the
purpose of the currently selected
parameter.
The name of the first parameter option in the list appears.
4.Push the Enter button again to access the options for the parameter
displayed on the VFD screen.
OR
Press the Nav+/Nav- switch down repeatedly to view other
parameters, and then press Enter to access an item’s parameter
options.
Chapter 3: Operation
5.Press the Nav+/Nav- switch up or down to scroll through the
different selectable parameter options, and then press Enter to
select the value you want.
OR
Press the Nav+/Nav- switch up or down to adjust the numeric
parameter value, and then press Enter.
6.Close the front panel of the frame to ensure the cooling system
continues to operate properly.
DVR-3901 Installation and Operation Manual29
Chapter 3: Operation
Operator and All List Parameters
This complete list of parameter settings is arranged so that the settings
Note
You can reset the default values
for all of the parameters
automatically via the
RstSettingparameter (see
page 39).
most likely requiring changes are placed at the top of the list. Items on
the bottom of the list are the least likely to require changing. Parameters
with the designation [RO] are “read-only.” An asterisk (*) indicates the
default user range or value.
The All List is a long flat list of all the available parameters, arranged
from the most-used to least-used. It is intended for a “Supervisor”
security designation. The Operator List is a condensed version of the
All List, and is intended for an “Operator” security designation.
Table 3-1 shows all available parameters. Parameters accessed only
from within the All List are shaded in gray.
See “Navigating the Operator and All Lists” on page 29 for instructions
on navigating this list using card-edge controls
.
Table 3-1. Operator and All List Parameters
Card-Edge
ID
AES_Prsnt
[RO]
AmonMode Audio Monitor ModeSets the monitoring audio mode
AudDither Audio Out Dither ModSelects the Dithering Mode for all outputs
AudInSrc Audio Input SourceAudio Input Source
ColorBar ColorBarTestSignalColor Bar Test Signal
CompRatio
[RO]
Parameter NameFunction
AES In PresentDetects the presence of AES Input signals
Compression RatioVideo Compression Ratio4.0 to 10.0 (clip)
RecVPStart VP Rec starting lineVideo proc amp record starting line
RecWhtClip VP Rec White ClipVideo proc amp record white clip940* to 1019 (clip)
RecBlkClip VP Rec Black ClipVideo proc amp record black clip4 to 64* (clip)
RecC_Clip VP Rec Chroma ClipVideo proc amp record chroma clip448* to 507 (clip)
RefVid Reference VideoSelects reference video format
Parameter NameFunction
Options or User
Range
• Normal*
• Loop Rec
•Frame Grab
(256*)
• Line 20 to 23 for
525
• Line 20 to 25 for
625
(Line 22*)
• CardRef*
•SDI In
SdiPrsnt
[RO]
SdiStdFb
[RO]
SDI IP Video PresentReturns the presence of the SDI input
signal
SDI IP Video Std FbReturns the detected SDI input video
signal standard
• Freerun
•Yes
•No
• Unknown
• D1-525
• D1-625
DVR-3901 Installation and Operation Manual37
Chapter 3: Operation
Table 3-1. Operator and All List Parameters
Card-Edge
ID
SloMoDisp Slow Motion DisplaySelect slow motion, stepping, and still
StdSetErr [RO] StdSet mismatchStandard set mismatch
ToneEnable Tone EnableEnables the audio tone generator
Parameter NameFunction
frame display options:
• Normal: for each frame, show both
fields interlaced
• F1F1F2F2: for each frame, show one
field at a time
• F1 Only: for each frame, show field 1
only
• 3:2 PuDn: for 24fps material in D1-525
mode show 3:2 pull-down when play
speed is set to 0.8x of normal play
speed
Options or User
Range
• Normal*
• F1F1F2F2
• F1 Only
•3:2 PuDn
•Ok
•Err
•On
•Off*
ToneFreq Tone Freq SetAdjust the frequency of the selected audio
tone generator
ToneGain Tone GainAdjust the gain of the selected audio tone
generator.
UseSrcTC Use Source Time CodeEnables user source time code during
playback
VidBitRate Video Bit RateSelects video bit rate17000 kbps to
VidStdSet Video Std SetSelects the line standard for the device
VLOV_EEVideo OP in EE ModeVideo output in EE mode
20 Hz to 20000 Hz
(1000* Hz)
-40 dB to 0* dB
•On
•Off*
42000* kbps
• D1-525
• D1-625
• Black
• Freeze*
• Color Bar
38DVR-3901 Installation and Operation Manual
Table 3-1. Operator and All List Parameters
Chapter 3: Operation
Card-Edge
ID
VPhase Vertical PhaseAdjusts the vertical timing
RstSettingRstSettingRestore default settings
DvrPlyCtrlDVR Play ControlControls DVR playback functionality
Parameter NameFunction
Options or User
Range
• 525 mode:
0* Ln to 524 Ln
• 625 mode:
• 0* Ln to 624 Ln
•Yes
•No*
•Stop
•Play
• EE On
•Prev
•Next
•StepFwd
•StepRev
• ShutleFwd
• ShutleRev
DvrRecCtrlDVR Record ControlControls DVR record functionality
SetupSetup ParametersSets the parameters for display and
usability (see “Appendix A: Tree View
Navigation” for a complete list of Setup
parameters and factory default settings)
.
• Jog Fwd
• Jog Rev
•Stop
• Record
Various
DVR-3901 Installation and Operation Manual39
Chapter 3: Operation
Setup Parameters
You can modify the Setup parameters to configure the card-edge
Note
Setup parameters on a local or
remote control panel may be
different from the card-edge
parameters described here.
controls for your personal needs. The Setup section appears at the end
of all three navigation lists and consists of these items:
•Alarms
•Navigation modes
•Adjustment modes
•Browse modes
•Scroll modes
•Display intensity
•Parameter descriptions
•Name
•FrameIP
•Sync full
•About mode
In Appendix A: “Tree View Navigation,” see the section “Setup” on
page 86 for the structure of the Setup menu. See your NEO FR-3901,
FR-3903, and FR-3923 Mounting Frames Installation and Operation
Manual for more information on Setup items, including descriptions
and operation notes.
40DVR-3901 Installation and Operation Manual
Alarms
The DVR-3901 module has a default list of seven alarms. You can
disable any alarm by modifying the Alarms parameter in the Setup
section.
When you select Alarms, all of the active alarms are visible in the
display, below Config (Configurations). If no alarms are active, only Config appears.
Alarm Synchronization
Alarm synchronization is available for this module if your NEO frame
contains a 3901RES-E resource module that supports the feature. When
active, alarm synchronization ensures that the alarm configuration
settings of card-edge controls and the CCS control software and control
panels are consistent.
Chapter 3: Operation
If the DVR-3901 module is set for local control, the alarm settings will
appear the same at both the card edge and via CCS, but the settings can
only be changed using the card-edge controls. If the module is set for
remote control, the alarm settings can be changed via both the card edge
and CCS control software and control panels.
Alarm configuration settings undergo DejaView (state recovery)
automatically. This means that when a module is hot-swapped, the
alarm configuration for the new module is updated to the settings of the
module that was previously in that slot. See “State Recovery Parameter
Availability” on page 28 for more information.
Identifying the Cause of an Alarm
To identify the reason for an alarm, select the active alarm, and then
press Enter. A scrolling message appears on the VFD describing the
cause of the fault.
DVR-3901 Installation and Operation Manual41
Chapter 3: Operation
Enabling or Disabling an Alarm Parameter
To enable or disable an alarm parameter, follow these steps:
1.Select Alarms, then select Config, and then press Enter.
2.Select one of the alarm parameters, and then press Enter.
3.Press Enabled or Disabled.
4.Press Enter to activate the selection.
Restoring Default Settings
To restore the alarms to their default settings, follow these steps:
1.Select Alarms, select Config, and then press Enter.
2.Scroll down the list of alarms, and then select Reset.
3.Press Enter to activate the selection.
The following table lists the default alarms for the DVR-3901 module.
You can enable or disable these settings, but you cannot change the
level of the alarm.
Table 3-2. Default DVR-3901 Alarms
Card-Edge
Alarm ID
DARSLckErrDARS Lock
DmxErrDemux ErrorMajorDemux error
DskFullErrDisk Full ErrorMajorDisk full
DskMalErrDisk
GlVPrsntGenlock Video
SdiPrsntSDI PresentMajorLoss of sdi
STDSetErrVideo Standard
Name of
Alarm
Error
Malfunction
error
Present
Setting Error
Alarm
Level
MajorDARS lock error
MajorDisk malfunction
MajorLoss of reference
MajorMismatch among
Meaning
standard setting and
feedbacks: VidStdSet,
GlStdFb and SdiStdFb
42DVR-3901 Installation and Operation Manual
Module Status LEDs
Alarms are usually logged and monitored within the available software
control applications (for example, +Pilot Lite, Pilot or Navigator). See
the appropriate software control user manual or online help for more
information.
Table 3-3. LED Indicator Descriptions
LED Description
Chapter 3: Operation
SDI IN
AES IN
EMB AUD IN
• Green: SDI video input is present
• Flashing Green: SDI input has a different video
standard than VidStdSet
• Red: SDI video input is absent
• Green: AES audio input is present and DARSLckErr is
No
• Red: AES audio is absent, AudInSrc is selected to
AES IN, and DARSLckErr is No
• Off: AES audio is absent and AudInSrc is not selected
to AES IN and DARSLckErr is No
• Flashing Green: AES audio input is present and
DARSLckErr is Yes
• Flashing Red: AES audio input is absent and
DARSLckErr is Yes
• Green: Embedded audio input is present
• Red: Embedded audio input is absent or in error and
AudInSrc is selected to Embedded
• Off: Embedded audio is absent and AudInSrc is not
selected to Embedded
DVR-3901 Installation and Operation Manual43
LTC IN
GENLOCK IN
• Green: LTC input is present
• Red: LTC input is absent and LTC_Input is selected to
External
• Off: LTC input is absent and LTC_Input is selected to
Internal
• Green: Reference video input is present and locked
• Flashing Green: Ref Video input has a different video
standard than VidStdSet
• Red: Reference video input is absent or not locked
Chapter 3: Operation
Table 3-3. LED Indicator Descriptions (Continued)
LED Description
EE MODE
LNK/ACT
T:STATUS
B:STATUS
• Amber: DVR is in E-E Mode (e.g. in recording)
• Green: Network link is established
• Flashing Green: Data communication is active
• Off: Unit is not connected to the network
• Green: Top hard drive is online
• Flashing Green: Top hard drive is recording
• Amber: Top hard drive is offline
• Off: Top hard drive is not detected
• Green: Bottom hard drive is online
• Flashing Green: Bottom hard drive is recording
• Amber: Bottom hard drive is offline
• Off: Bottom hard drive is not detected
44DVR-3901 Installation and Operation Manual
Overview
Note
For descriptions of the
most-used functions and
procedures of the DVR-3901
see “Chapter 5: Functions and
Controls” on page 57.
Chapter 4
Remote Operation
This chapter describes how to operate the DVR-3901 Digital Video
Recorder using UDP/Ethernet, RS-422 or a PC controller. (RS-422 or
serial control is set via jumper J6. See “RS-422 / PC Serial Cable
Selection” on page 17.)
The following topics are found in this chapter:
•“Control Port Assignment” on page 46
•“RS-422 Communication Protocol” on page 47
•“Motion Control” on page 51
DVR-3901 Installation and Operation Manual45
Chapter 4: Remote Operation
Control Port Assignment
You can connect one RS-422 controller, via the serial port, and one or
Note
The NeoVR Command Center
automatically handles Control
Port switching using
Communication Settings and
with the Connect/Disconnect
button on the VR View. Please
refer to the NEO VR Command CenterUser Manual for details.
multiple UDP controllers, via the ethernet port, to the DVR-3901.
However, the DVR-3901 can only respond to one controller at a time.
To prevent the DVR-3901 from receiving conflicting commands from
different controllers, the DVR-3901 uses the following rules to assign
control to a specific controller:
•On power up, DVR communication is in an idle state.
•If there is no communication on an active control port for 15
seconds, that control port will become inactive, and communication
will go to an idle state.
•There are three ways to set an active control port:
•If DVR communication is in an idle state, the DVR will grant
access to the first controller that sends commands to it, and
assign the corresponding control port to be the active control
port.
•To switch between an RS-422 port and a UDP port, set the
CtrlPort command in Pilot or use the card edge controls to
make that port active.
•From any port, a controller can set a new active port by sending
a CtrlPort command (Please refer to the DVR-3901 Automation Control Developer’s Manual).
A controller can perform one of the following options to obtain control
of the DVR:
•Issue a get Ctrl_Port status command
The DVR will reply with 0 if the active port is RS-422 or the IP
address of the active UDP controller if the active port is UDP.
•Force a connection by sending the set CtrlPort command
46DVR-3901 Installation and Operation Manual
RS-422 Communication Protocol
The DVR-3901 implements RS-422 remote control over a DB-9
connector.
DB-9 connector
This 9 pin connector supports serial communication that conforms to
the industry standard electrical interface, data format, and command
protocol used by Sony and other manufacturers.
Electrical interfaceTIA/EIA-422-B
•38, 400 bits per second (38.4 kbps)
Data format
•Asynchronous, full duplex
communications
Chapter 4: Remote Operation
Command protocolOdd parity, 8 data bits, 1 stop bit
Command Block Format
Table 4-1 describes the command block format for messages sent via
the RS-422 Communication Protocol.
Table 4-1. Command Block Format
1 Byte
1 Byte1 Byte
Bits 7-4Bits 3-0
CMD-1Data CountCMD-2DATA-1. . . DATA-nCHECKSUM
N-2
Bytes
1 Byte1 Byte
DVR-3901 Installation and Operation Manual47
Chapter 4: Remote Operation
CHECKSUM
Note
Only some motion commands
are described in this manual.
For the full list of commands
supported, please refer to the
DVR-3901 Automation Control
Developer’s Manual.
The final byte in these commands is always a modulo-256 checksum.
This is the sum of all bytes of the command, not including the
checksum byte itself. This checksum byte is included in Table 4-4 and
Table 4-5 for commands that do not contain variable data. For example,
the PLAY command consists of three bytes, 20 01 21. In this command,
the third byte, 21, is the checksum. For commands and responses that
contain variable data, the checksum byte is denoted in the table as uu.
Table 4-2. Summary of CMD-1 Categories
CMD-1 (hex)FunctionDirection
0System controlTo DVR-3901
1System control responseFrom DVR-3901
2Transport controlTo DVR-3901
4Preset and select controlTo DVR-3901
6Sense requestTo DVR-3901
7Sense responseFrom DVR-3901
AOdetics “auto mode” extensionsTo DVR-3901
CNEO VR extensionsBidirectional
FNEO VR extensionsBidirectional
48DVR-3901 Installation and Operation Manual
UDP Control
The DVR-3901 implements UDP remote control over an Ethernet port.
UDP Communication Over Ethernet Port
You can use the external Ethernet port to control the DVR-3901 by
sending serial control protocol commands encapsulated in UDP
packets. UDP communication is conducted on port 331. This method
requires that the content of server/client conversation bear the format
outlined in Table 4-3:
Table 4-3. UDP Datagram Format
FieldFormatDescription
Chapter 4: Remote Operation
ID4 bytes,
unsigned,
MSB first
CHANNEL1 byte,
unsigned
DATA0 DATA(N-1)
N-byte, size
depends on
command
This field contains he ID number of a
command or response.
It should have different values for adjacent
commands. For example, this field can be
an incrementing count number modulo
2^32, unless the command is a retry of the
previous command, for example, resulting
from a response time out. The retried
command will bear the same ID number as
the original (failed) command.
This field should be 0.
This field contains either a command from
the controlling device or a response from
the controlled device.
Referring to Table 4-1, this field contains
all the bytes in the command except the
checksum.
DVR-3901 Installation and Operation Manual49
Chapter 4: Remote Operation
Timeout & Retry Handling
The controller should ignore any responses that don't match the last
command's identification. If the controller does not receive a response
that matches the last command's identification within the protocol's
timeout, it may either retry the failed command using the same
identification number, or proceed to the next command using a new
identification number.
If the DVR-3901 receives two or more consecutive commands bearing
the same identification numbers, it will only execute and respond to the
first instance, after which it will simply return duplicates of the first
response for every subsequent instance, without actually executing
them.
This gives the controller the option of retrying unacknowledged
commands without the danger of having them executed repeatedly by
the DVR.
50DVR-3901 Installation and Operation Manual
Motion Control
For the list of all commands supported by the DVR-3901, please refer
to DVR-3901 Automation Control Developer’s Manual. In BVW/
Odetics mode, the DVR supports most of the Sony BVW-75 VTR
commands and Odetics extension. In playlist mode, apart from the
transport commands, it adds the command extension to support
directory listing, title setting and playlist creation, chase mode, loop
recording, frame grab and loop playback.
Both BVW/Odetics mode and Playlist mode support the following
basic control commands.
ACK / NAK
The tables following often refer to an ACK or NAK. The recorder
returns an ACK (acknowledge) or NAK (negative acknowledge) for
commands that do not return a specific response containing, for
example, time code or status information. There are different forms of a
NAK for different communication errors.
Chapter 4: Remote Operation
Table 4-4. ACK and NAK Response Examples
Data (Hex)Explanation
ACK10 01 11Command recognized; recorder is
attempting to perform the action
called for in the command
NAK11 12 01 24Command not supported or
command not recognized due to
communication error
11 12 02 25Software overrun error; command
cannot be processed when DVR is
in a particular state
11 12 04 27Command had incorrect checksum
11 12 20 43Overrun error on serial line
DVR-3901 Installation and Operation Manual51
Chapter 4: Remote Operation
Device Type Request
Table 4-5. Device Type Request
CommandData (Hex)Explanation
Device type
request
Transport Commands
The DVR-3901 responds to transport commands with ACK or NAK.
Table 4-6. Transport Commands
CommandData (Hex)Explanation
STOP20 00 20
PLAY20 01 21Play forward at 1X play speed
REC20 02 22
FAST FWD20 10 30
00 11 11
• Playlist mode: 12 11 39 01 5D
• BVW/Odetics mode:
12 11 20 25 68 for D1-525
12 11 21 25 69 for D1-625
• Playlist mode:
in play list
seek to last frame
• BVW/Odetics mode: go to the
last frame of video, or the last
frame of video in the current
Odetics ID, if Odetics ID is used
STEP FWD20 14 34Advance one frame forward, up to
OUT point
REWIND20 20 40
STEP REV20 24 44Step one frame back, up to IN point
52DVR-3901 Installation and Operation Manual
• Playlist mode:
in play list
• BVW/Odetics mode:shuttle
reverse at 30X play speed
seek to first frame
Chapter 4: Remote Operation
Table 4-6. Transport Commands (Continued)
CommandData (Hex)Explanation
CUE UP
WITH DATA
24 31 ff ss mm hh uu Cue to the specified frame; this is
always relative to the first frame of
the play list (For example, to cue to
time 01:22:33:15: enter
24 31 15 33 22 01)
FULL EE
20 60 80Has no effect
OFF
FULL EE ON20 61 81Switch to pass-through mode, where
video and audio at configured video
inputs is visible at the video and
audio outputs.
DVR-3901 Installation and Operation Manual53
Chapter 4: Remote Operation
Variable Speed Commands
The following commands specify a playback speed. When one of these
commands is issued, the recorder immediately starts playing at the
specified speed.
The data byte(s) of the command conform to Sony’s formula for speed
data. One byte or two bytes of speed data may be provided. Two-byte
speed data gives greater speed resolution, most useful at lower play
speeds.
As a point of reference, 40 hex defines normal playback speed; 20 hex
defines 1/10 play speed; 60 hex defines 10 times play speed.
Table 4-7. Variable Speed Commands
CommandData (Hex)
Jog Fwd21 11 xx uu
22 11 xx xx uu
Var Fwd21 12 xx uu
22 12 xx xx uu
Shuttle Fwd21 13 xx uu
22 13 xx xx uu
Jog Rev21 21 xx uu
22 21 xx xx uu
Var Rev21 22 xx uu
22 22 xx xx uu
Shuttle Rev21 23 xx uu
22 23 xx xx uu
54DVR-3901 Installation and Operation Manual
Time Commands
The following command retrieves a time code from the recorder.
(See Table 4-8.)Within the response, the time information is formatted
as ff ss mm hh, where ff is frames, ss is seconds, mm is minutes, and hh
is hours. For example, time code 01:22:33:15 would be formatted in
hexadecimal as 15 33 22 01.
Table 4-8. Time Code Command
CommandData (Hex)Response
Current Time Sense61 0C 01 6E74 04 ff ss mm hh uu
Status Sense Command
The data byte (xx) of this command specifies which status bytes the
recorder will send. (See Table 4-9.) The most-significant four bits
indicate the first byte to be returned. The least-significant four bits
indicate the number of status bytes to send. For example, a data byte of
25 hex causes the recorder to send bytes 2 through 6.
Chapter 4: Remote Operation
Table 4-9. Status Sense Command
CommandData (Hex)
Status Sense61 20 xx uu
DVR-3901 Installation and Operation Manual55
Chapter 4: Remote Operation
See Table 4-10 for the format of status data. Positions that contain no
entry are always zero.
Table 4-10. Format of Status Data
Byte No. Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 Busy Hard
Error
11StopRewindFast
Forward
21ShuttleJogVariable
Play
3Auto
Mode
4Full EE
On
5Insert
6
7
8
ReviewPreviewPreroll
0=fwd
1=rev
Local
RecordPlay
StillCue
Complete
Out
Preset
In Preset
9Preview
0DStart of
Timeline
56DVR-3901 Installation and Operation Manual
End of
Timeline
Out
Preset
Preview
In Preset
Overview
Chapter 5
Functions and Controls
This chapter describes the most-used functions of the DVR-3901 and
how to customize them.
The following topics are found in this chapter:
•“Functions and Controls” on page 58
•“Online Operation Modes” on page 65
•“Offline File Transfer” on page 69
•“Exception Handling” on page 70
•“Firmware Upgrade” on page 70
DVR-3901 Installation and Operation Manual57
Chapter 5: Functions and Controls
Functions and Controls
The following section describes the most-used functions of the
DVR-3901 Digital Video Recorder, and the procedures for using
parameters to customize them.
Video
The DVR-3901 supports one digital video input via an SDI input port.
The SDI input is 270 MHz, and complies with SMPTE259-C. The
module outputs one channel of SDI video at 270 MHz and one
composite video output for monitoring purposes. The video processing
is 10-bit. The video compression and decompression method is 8-bit
M-JPEG.
Selecting a Video Standard
Setting Color Bars
Select between 525 or 625 lines for the DVR-3901 video system via the
parameter VidStdSet. The SDI input and output must comply with the
video system selection.
For SDI input, the card-edge LED “SDI IN” and the parameter
SdiPrsnt indicate if SDI input is present. The parameter SdiStdFb
indicates the detected video standard at SDI input. When the SDI input
video standard is different than the VidStdSet, the StdSetErr will be
turned on. The alarm is turned on when the “SDI IN” LED is flashing
green.
To show a 75% color bar at output, use the ColorBar parameter. This
color bar only affects the output, and won’t be recorded onto disk.
For NTSC monitoring, pedestal setup is controlled via the parameter
Pedestal.
If a loss of video occurs at the SDI input, the picture on the SDI output
depends on whether the VLOV_EE parameter is set to black, 75%
color bar or frozen.
58DVR-3901 Installation and Operation Manual
Using Video Proc Amps
Audio
Chapter 5: Functions and Controls
The DVR-3901 has two separate video processing-and-amplifiers
(ProcAmps) built-in, one for the recording path and one for the
playback path. They can be enabled or disabled by parameters VP_Rec
and VP_Play. Once the parameter is set to Enable, you can control the
luma gain, luma offset, chroma gain, hue, white clip, black clip and
chroma clip level. Use RecVPStart and PlayVPStart to adjust the
starting line where the video procamp takes effect.
The DVR-3901 supports one audio channel pair, which can consist of
one stereo pair or two independent audio channels. For convenience,
the first channel is referred to as “Left” and the second channel is
referred to as “Right”.
Audio Inputs
Select between AES or embedded audio at SDI input for the audio
channel pair using the AudInSrc parameter. The card-edge LED
“AES IN” and the parameter AES_Prsnt indicate the presence of valid
AES audio input. The card-edge LED “EMB AUD IN” and the
parameter DmxErr show the status of embedded audio at the SDI
input. You can use the parameter DmxDBNCtrl to turn off a data block
number (DBN) error, as some embedder equipment does not generate
DBNs that comply to SMPTE172M. Use the parameters DmxGrpSel
and DmxChSel to select the desired audio group and channel pair to be
de-embedded. The parameter DmxGrpPres indicates the presence of
different audio groups.
The audio input, either AES or embedded audio, must be in PCM audio
format. If the V-bit is set, as in the case of compressed audio input, the
input audio is muted.
The AES input can be 16, 20, or 24-bit resolution and sampled at
32 kHz, 44.1 kHz, 48 kHz, or 96 kHz. The embedded audio input must
be 20-bit embedded with a 48 kHz sampling rate. Audio recorded onto
disk is 16-bit PCM format, sampled at 48 kHz. For playback audio,
dithering is provided via the AudDither parameter.
DVR-3901 Installation and Operation Manual59
Chapter 5: Functions and Controls
Audio Outputs
Audio Proc Amps
One channel pair of audio is output to AES, embedded onto SDI video
output, and output to the audio monitoring port. Use the EmbEn
parameter to enable Audio embedding or EmbGrpSel to enable group
selection. The channel-pair is embedded in the selected group on both
channel-pair 1 and channel-pair 2. The embedder will overwrite the
designated audio group if it exists.
Use the provided RCA jack to monitor mono audio. Select from the
mono output options of “Left”, “Right”, or “Mixed Left and Right,”
using the AmonMode parameter.
You can generate audio tone at any time using the To ne En ab le
parameter. Use the ToneFreq and Ton eGa in parameters to adjust the
tone frequency and gain. The tone will not be recorded when it is turned
on.
There are two separate built-in audio processing-and-amplifiers
(procamps), one for the recording path and the other for the playback
path. They can be enabled or disabled by the parameters AP_Rec and
AP_Play. Once a parameter is set to Enabled, you can adjust the audio
level and invert the phase for the left and right channels.
Genlock and DARS
Use the RefVid parameter to lock the video to the selected video source
Note
DARS should always be 48 kHz
sample rate.
on the DVR-3901 using the Genlock circuit. This video source can be
reference video input, SDI video input, or free running.
Adjust video timing via the Vphase and Hphase parameters.
For reference video input, the GlStdFb parameter is used to show the
standard that has been detected, and GlVPrsnt indicates it is present. If
PAL-M is being used as reference video, GlStdFb will indicate NTSC
instead, but the SDI video output timing is still correct.
The DVR-3901 offers the capability of DARS (digital audio reference
signal) locking so that the AES output complies to AES-11 standard.
You can turn DARS locking on and off via the DARS_Src parameter.
When you set the parameter to AES IN, the DARS input is shared with
the AES IN port. The AES OUT timing will then lock to the DARS
input. Adjust the DARS_Phase parameter to achieve your desired
60DVR-3901 Installation and Operation Manual
Audio Video Delay
Time Code
Chapter 5: Functions and Controls
phase on the AES output. Note that the DARS must be locked to the
reference video, which could be a reference video input or an SDI input,
depending on the RefVid setting. Otherwise, the DARSLocked status
will show “Not locked” and the AES output will be in the wrong
format.
Use PlyAVDelay to adjust the audio delay in the range of [-1 to +1]
video frame if there is a need to compensate for lip sync errors present
downstream during playback.
The DVR-3901 supports LTC input and output. For video standard 525,
use DropMode to select drop frame or non-drop frame for time code
generation. The use of time code differs in different operation modes.
See “Online Operation Modes” on page 65 for details.
Video Compression
The DVR-3901 uses the ndustry standard M-JPEG (baseline) as its
video compression method. You can find out the compression ratio
from the CompRatio parameter. It can range roughly from 4:1 to 10:1.
For the D1-525 system, the video lines 17 to 262 of each field are
compressed using M-JPEG and stored; for D1-625, the lines are 23 to
310. Closed captions and other VBI lines are retained with the
compressed video.
You can adjust the compressed video bit rate at any time using the
VidBitRate parameter, which ranges from 17 Mbps to 42 Mbps. If the
bit rate is changed during recording, the change takes effect in the next
recording. During playback, video is decompressed seamlessly from
clip to clip with various bit rate settings.
DVR-3901 Installation and Operation Manual61
Chapter 5: Functions and Controls
Storage
Note
In Europe and Asia the 2.5 in.
(6.35 cm) hard drive is
described as 9.5 mm.
The compressed video, PCM audio, and time code are stored on the
on-board 2.5 in. (6.35 cm) IDE hard drives. A DVR-3901 has two hard
drives installed.
Disk status reporting parameters include:
•DiskSize: Shows the online disk size and offline disk sizes
•DiskStatus: Shows the disk well-being
•DiskUsed: Indicates the percentage of disk occupied by media and
system material
Table 5-1 shows the number of hours of video that a single 80 GB hard
drive can store.
Table 5-1. Video Hours Available
Online Drives
Video Bit
Rate (Mb/s)
424DigiBeta4:00
345BetaCam5:00
286BetaCam6:00
247BetaCam6:50
218BetaCam7:50
199S-VHS8:40
1710S-VHS9:30
Compression
Ratio
Equivalent
Quality
40 GB Hours
Use DiskOnline to select which drive(s) are online, and which are
offline.
Online drives record and play back video and accept transport, Odetics,
and playlist commands coming from an RS-422 or Ethernet port. If both
drives are online, they are merged as a single disk space and the merged
drive is given drive letter M:.
A single recording can span two drives. The resulting file is split into
two clips, one on each drive.
62DVR-3901 Installation and Operation Manual
Offline Drives
Formatting Disks
Chapter 5: Functions and Controls
When a single drive is online, the drive letter is assigned T: for top
drive, or B: for bottom drive. If only one disk is online, the other disk is
offline.
Online disks are open for real time recording or playback. All Sony
protocol motion control commands apply to the operation of the online
disks (see “Motion Control” on page 51)
Offline drives cannot accept transport, Odetics, or playlist commands.
Offline drives can only be accessed through the Ethernet network.
To transfer files in and out of a disk, the selected drive must be offline.
Leitch formats and tests DVR-3901 drives before shipment. However,
if you are installing new hard drives, you must format them prior to use.
To format a drive, follow this procedure:
1.If the disk is offline, switch it to online mode using the card-edge
parameter DiskOnline.
2.Format the disk using the card-edge control parameter
FormatDisk.
This command formats the online disk. It takes one or two seconds.
On Screen Display (OSD)
The DVR-3901 can display a text window, an audio meter window, and
customizable strings.
Text Window
The text window displays the DVR’s name, current time code and
whether it is on or off line.
To enable the text window on the video monitoring output, use the
parameter OSDTxtDisp. Set the position of the text window on the
screen using the parameters OSDTxtPosX and OSDTxtPosY, and
adjust its opacity using OSD_Opaque. You can also select between two
sets of fonts (small: 8x16 and large: 12x18) using OSDFontSiz.
DVR-3901 Installation and Operation Manual63
Chapter 5: Functions and Controls
Audio Meter Window
String Display
The Audio Meter window displays VU meter, PPM meter or mixed
VU/PPM (a VU meter with a top bar showing the PPM value). Enable
the audio meter window through OSD_VUDisp.
When you select VU meter or PPM meter, a white bar on the top
indicates the peak hold value. It holds for one second in 525-line
standard and 1.2 seconds in 625-line standard.
The audio meter shows the audio levels for both the left and right
channels. Each channel displays three sections, colored red, yellow and
green. Adjust the level of top of yellow and top of green through
OSD_VUYTop and OSD_VUGTop, respectively. Adjust the position
of the audio meter window via OSD_VUPosX and OSD_VUPosY and
use OSD_Opaque to adjust its opacity.
With an RS-422/Ethernet controller, the DVR-3901 can write strings
(for example, a clip name) for display on the on screen display. Refer to
the DVR-3901 Automation Control Developer’s Manual for more
information.
64DVR-3901 Installation and Operation Manual
Online Operation Modes
The DVR-3901 operates in two different modes: Playlist mode and
BVW/Odetics mode. Select the mode through the DvrOpMode
parameter. The mode should be set properly before the DVR is used for
recording. If the disk contains pre-recorded material, switching
operating modes may cause undesirable effects, even when the mode is
switched back to the original mode. These effects include video clip
shuffling, time code errors, and even the loss of video clips.
In either mode, you can control the DVR-3901 with an RS-422
controller, or a PC application through the RS-422 or Ethernet port.
Two cables are supplied for this purpose:
•RS-422 cable - Use this cable if you are using an RS-422 controller.
•PC serial control cable (does RS-232 to RS-422 conversion) - Use
this cable when you are using a PC to control the DVR.
Chapter 5: Functions and Controls
Playlist mode
In either mode, you can record different clips with different video bit
rate settings. You can adjust the parameter VidBitRate at any time. If
you change the bit rate during recording, the change takes effect in the
next recording.
In either mode, use the SlowMoDisp parameter to select different
display capabilities when the video is played back at less than 1x play
speed, including stepping forward and backward and still frames. The
recommended setting is F1F1F2F2 or F1 Only for smooth display.
In Playlist mode, a clip is considered to be a sequence of video frames
that are recorded from when you send a Record command until you
send a Stop command. These frames are added to the directory where
they appear as discrete clips that can be trimmed and deleted using a PC
application or an edit controller. In Playlist mode, new recordings do
not overwrite existing recordings. When the disk is full, the recorder
cannot record more unless some space is freed by manually deleting
video frames.
If time code is not present at the recorder’s LTC IN connector when
recording the video, the recorder assigns internal time code to every
frame. By default, the internal time code starts at zero with each clip.
DVR-3901 Installation and Operation Manual65
Chapter 5: Functions and Controls
Note
Use the On Screen display
(OSD) to view the current status
of the DVR. Do not use the
current state selected on the
DvrPlyCtrl card-edge control,
because this control does not
receive feedback of the current
status.
The time code that is recorded is called source time code. Set the
UseSrcTC parameter to On if you wish to play out the source time code
during playbackt. Otherwise, the DVR-3901 generates sequential time
code which starts from zero at the beginning of the playlist.
By default, all the video clips are chained in the sequence of their
relative time of recording to form a single playlist. As a result, all the
recordings can be played from beginning to end seamlessly, as if they
were from a single recording. This single playlist is referred to as the
Full Spotbase.
When demonstrating or debugging the DVR, you can use the
DvrPlyCtrl parameter for basic transport functions. In Playlist mode,
this parameter only controls the active playlist. Upon power-up of the
DVR unit, the active playlist is the full spotbase.
Loop Recording
Frame Grabbing
To enable loop recording, switch parameter RecMode to LoopRec.
When this is enabled, recording is only made to the available disk
space, not the whole disk space. The available disk space can be viewed
as a wrap-around tape. New video will be recorded onto the available
disk space over and over. Old recordings outside of the available disk
space won’t be deleted or recorded over. Once the recording is stopped,
the final video recorded is only as long as the available disk space. For
example, before the loop recording, if the available space is three hours
of video, after loop recording for 10 hours, when the recording is
stopped, the DVR-3901 will hold the only the last 3 hours of the
recording.
Enable the Frame Grab feature by switching RecMode to FrameGrab.
When in this mode, every time the DVR receives a Record command, it
turns on recording status and grabs a single video frame. It appends this
frame to the current clip. When the DVR-3901 receives a Stop
command, the clip that contains individual frames is saved to disk.
66DVR-3901 Installation and Operation Manual
Creating Playlists
Deleting Clips
Chapter 5: Functions and Controls
With the help of NEO-VR Command Center, which you can purchase
separately, you can construct playlists. Playlists can be assembled using
selected clips and parts of selected clips. The constructed playlist forms
a new sequence of video frames that can be played back seamlessly.
Playlist construction is a basic form of nonlinear, cuts-only editing. Any
mode can be switched to Playlist mode so that recordings can be
managed in a nonlinear editing fashion.
In Playlist mode, you can enable the parameter LoopPlayEn to play the
selected playlist in a loop-around fashion.
In Playlist mode, the only way to remove clips at card edge is by using
the FormatDisk command, which empties the entire disk space.
To delete individual clips and portions of clips, leaving other clips
intact, you must use the NEO-VR Command Center software.
DVR-3901 Installation and Operation Manual67
Chapter 5: Functions and Controls
BVW/Odetics Mode
This mode can operate in two ways: with and without the Odetics
extension.
Without Odetics Extension
In BVW mode, the disk space is viewed as a virtual linear tape recorded
with black and prestriped with 24 hours of time code. When a clip is
recorded, if LTC input is present, the time code determines the clip’s
location on the virtual tape. If you record a clip with time code from
hour 2 to hour 4, and another clip with time code from hour 5 to hour 6,
you would have a one hour gap filled with black video between hour 4
and hour 5. If LTC input is not present, the time code automatically
increments during recording, so you can cue to the time code location.
Only recorded material occupies disk space. When newly formatted, the
Note
When the disk is full, the
disk may not actually
contain 24 hours of video.
If a full disk contains 6
hours worth of video,
there will be 24-6=18
hours of black when
playing back the whole 24
hours.
disk is empty. The virtual tape can still be played back and is all black.
If, as in the above example, you record a video clip from time code
hour 2 to hour 4, and another from hour 5 to hour 6, your disk will only
hold three hours of video. The physical location of a video on the disk
has no relationship to that video’s position in the 24 hour time code.
In BVW/Odetics mode, when you record material with the same time
code as previously recorded video, the DVR-3901 deletes the
previously recorded material with identical time codes. This deletion
does not occur until after a recording is complete. Consequently, it is
not possible to overwrite a video recording when the disk space
available is less than the length of the video clip to be recorded; the disk
could be filled before the recording has finished and before the
overwritten video can be deleted from the disk.
To avoid the accidental loss of previously recorded material, keep a
record of recorded material to consult before making new recordings.
With Odetics Extension
In this mode, the DVR-3901 supports Odetics extension commands.
Each Odetics ID is identified as a clip that may occupy 24 hours of time
code space. Recording, playback and storage otherwise work in the
same way as when the Odetics extension is not used. Existing Odetics
automation controllers are supported.
68DVR-3901 Installation and Operation Manual
Chapter 5: Functions and Controls
Switching Between BVW/Odetics Mode and Playlist Mode
Material recorded in BVW/Odetics mode is preserved in original clips
Note
Be sure to use the FormatDisk
command to clean up the disk
right after switching to BVW/
Odetics mode to ensure proper
recording and playback.
and can be edited in a nonlinear way after switching to Playlist mode;
however, the sense of 24 hour time code is lost and the disk simply
holds individual video clips. Modifications in Playlist mode may result
in the reshuffling and/or loss of video clips if switched back to BVW/
Odetics mode. Video recorded in Clip Mode cannot be played back in
BVW/Odetics mode.
Offline File Transfer
When one or both drives are put offline, you can transfer clips in and
out of the DVR-3901’s drives through the Ethernet port. The transfer
may occur between two DVRs or between a DVR and a PC. You can
use the NEO VR Command Center software to access all the file
transfer capabilities. Please refer to the NEO VR Command Center User Guide for details.
DVR-3901 Installation and Operation Manual69
Chapter 5: Functions and Controls
Exception Handling
Loss of Power
If your DVR-3901 loses power during recording, it will lose all material
captured since the recording started.
Loss of Video Input
If your DVR-3901 loses video input while recording, it will record
black. If it is recording embedded audio with the video, it will record
silence.
Loss of Video Genlock
If your DVR-3901 loses video genlock during playback ,and CardRef
is selected for the RefVid parameter, the output video will freerun.
Firmware Upgrade
You can upgrade to new firmware using CCS Pilot or by card-edge
ethernet connection. Leitch Customer Support staff will help you with
your new firmware upgrades. After you download new firmware,
reboot the module via CCS Pilot or by disconnecting it from and
reconnecting it to its power source to continue the upgrade process.
When the module is upgrading, the card-edge LEDs scroll. When the
upgrading is complete and the scrolling stops, the module is ready to
use.
70DVR-3901 Installation and Operation Manual
Overview
Chapter 6
Specifications
The following tables list specifications for the DVR-3901 Digital Video
Recorder module:
•“Serial Digital Video Input” on page 72
•“AES Audio Input” on page 72
•“Embedded Audio Input” on page 73
•“LTC Input” on page 73
•“Reference Video Input” on page 74
•“Serial Digital Video Output” on page 74
•“AES Audio Output” on page 75
•“Embedded Audio Output” on page 75
•“LTC Output” on page 76
•“Monitoring Outputs” on page 76
•“Hard Drive” on page 77
•“RS-422” on page 77
•“Power Consumption” on page 78
•“Ethernet Port” on page 78
Specifications and designs may change without notice.
DVR-3901 Installation and Operation Manual71
Chapter 6: Specifications
Serial Digital Video Input
Table 6-1. Serial Digital Video Input
ItemSpecification
StandardSMPTE 259M-C, 525/625 component
ConnectorBNC
Number of inputs1
Level800 mV ±10%
Impedance75Ω
Return loss>18 dB to clock frequency
CMRR30 V pk-to-pk up to 60 Hz
EqualizationAutomatic, up to 300 M coax
AES Audio Input
Table 6-2. AES Audio Input
ItemSpecification
StandardAES 3
ConnectorLeitch 3-pin balanced connector
Number of inputs1
Sample resolution16/20/24 bits
Sample rate32/44.1/48/96 kHz
Level2 to 7 V pk-to-pk
Balanced impedance110Ω
72DVR-3901 Installation and Operation Manual
Embedded Audio Input
Table 6-3. Embedded Audio Input
ItemSpecification
StandardSMPTE272M-A
Sample resolution20/24 bits
Sample rate48 kHz
LTC Input
Table 6-4. LTC Input
Chapter 6: Specifications
ItemSpecification
StandardSMPTE12M
Connector3 pin balanced
Number of inputs1
Level0.5 to 5 V pk-to-pk
ImpedanceHi-Z (>30 kΩ) or 600Ω
Common mode range8 V pk-to-pk
CMRR40 dB at 60 Hz
DVR-3901 Installation and Operation Manual73
Chapter 6: Specifications
Reference Video Input
Table 6-5. Reference Video Input
ItemSpecification
StandardNTSC, PAL-B
ConnectorBNC
Number of inputs1
Level1 V pk-to-pk, ±3 dB
Impedance75Ω
CMR5 V pk-to-pk
CMRR>60 dB at 60 Hz
Return loss>35 dB to 6 MHz
Serial Digital Video Output
Table 6-6. Serial Digital Video Output
ItemSpecification
StandardSMPTE259M-C, 525/625 component
ConnectorBNC
Number of outputs1
Level800 mV
Impedance75Ω
Return loss>18 dB to clock frequency
Rise and fall times0.75 to 1.5 ns
Drive capacityup to 250 m (Belden 8281)
DC offsetwithin ±0.5 V
Overshoot< 10%
74DVR-3901 Installation and Operation Manual
AES Audio Output
Table 6-7. AES Audio Output
ItemSpecification
StandardAES 3
ConnectorLeitch 3-pin balanced connector
Number of outputs1
Sample resolution20 bits
Sample rate48 kHz
Level4.5 V pk-to-pk
Jitter±4 ns (0.025UI)
Chapter 6: Specifications
Rise/fall time5 to 30 ns (10% to 90%)
Balanced impedance110Ω
Embedded Audio Output
Table 6-8. Embedded Audio Output
ItemSpecification
StandardSMPTE272M-A
Sample resolution20 bits
Sample rate48 kHz
DVR-3901 Installation and Operation Manual75
Chapter 6: Specifications
LTC Output
Table 6-9. LTC Output
ItemSpecification
StandardSMPTE12M
Connector3 pin balanced
Number of outputs1
Level ( output into 1 kΩ)
ImpedanceLow-Z (< 25Ω) or 600Ω
Transition time40 ± 4 µs measured at 10% and 90%
Overshoot/undershoot<3%
Monitoring Outputs
Table 6-10. Monitoring Output
ItemSpecification
Monitoring video connectorBNC
Monitoring audio connector1 RCA jack
• 2 V pk-to-pk Low-Z
• 1.25 V pk-to-pk 600Ω
amplitude
76DVR-3901 Installation and Operation Manual
Hard Drive
Note
In Europe and Asia the 2.5 in.
(6.35 cm) hard drive is
described as 9.5 mm.
Chapter 6: Specifications
Table 6-11. Hard Drive
ItemSpecification
Hard drive installed2 x 80 GB 2.5 in. (6.35 cm) IDE
Note
Older versions of DVR-3901
shipped with two 40 GB hard
drives.
RS-422
Hard drive model
See the Leitch Web site or contact your
service representative for a list of certified
hard drive models
Table 6-12. RS-422
ItemSpecification
ProtocolSony/Odetics subset
ConnectorDB-9
StandardTIA/EIA-422-B
Input impedance>4 kΩ
Input common mode voltage±7 V
DVR-3901 Installation and Operation Manual77
Maximum input amplitude10V common, 12V differential
Output impedance<100Ω
Output amplitude2 to 10 V
Output short current<150 mA
Output power-off leakage
current
Output rise/fall time<0.1 UI or 20 ns
Output overshoot<10%
<100 µA
Chapter 6: Specifications
Power Consumption
Table 6-13. Power Consumption
ItemSpecification
Power-up24.0 W max.
Record/play operation19.0 W max.
Idle16.4 W
Ethernet Port
Table 6-14. Ethernet Port
ItemSpecification
StandardIEEE 802.3u
ConnectorRJ45
78DVR-3901 Installation and Operation Manual
Overview
Appendix A
Tree-View Navigation
The Tree View is one of the three navigation modes available on the
DVR-3901 modules. Unlike the other navigation modes, the Tree View
is a multi-level list of parameters, arranged in the following main
groups:
•“Audio” on page 81
•“Data” on page 82
•“Other” on page 83
•“Timecode” on page 83
•“Video” on page 83
•“Setup” on page 86
(See page 40 for more information on the use of Setup parameters,
which govern the operation of the card-edge controls.)
This appendix consists of instructions for navigating the lists (see
page 80) and the Tree View Parameter list.
DVR-3901 Installation and Operation Manual79
Appendix A: Tree-View Navigation
Navigating the Tree View
To navigate and then view or change a parameter from the Tree View,
follow these steps:
1.Open the front panel of the NEO frame.
2.Press any card-edge control to turn on the VFD display.
Note
If you do not wish to make
changes to your settings, return
to the previously selected item
in the list, and then press
Escape to move up a level. See
SelPar Adj Mode in the Setup
section at the end of the Tree
View to enable or disable this
delayed adjust mode feature.
The message NEO VR will appear as the banner on the card-edge
display.
3.Press the Enter button.
The first two items in the Level One list will appear.
4.Click Nav- (down) on the Nav-/Nav+ switch to view more items in
the Level One list.
5.Select the desired item in the Level One list, and then press Enter.
This leads you to the Level Two list.
Note
After several seconds of
inactivity, a scrolling message
will appear, describing the
purpose of the currently selected
parameter.
6.Repeat steps 3 and 4 to view more items in Levels Two, Three, and
Four.
7.If the parameter is selectable, slide the bar to the desired parameter
using the Nav+/Nav-switch.
OR
Select the desired item in the Level Four list, and then press Enter.
Once the Level Four parameter is set or viewed, you can leave the
parameter in its current state, or return to the banner. To return to the
NEO VR banner, repeatedly press the Escape button.
Close the front panel again after you have completed the procedure to
prevent the frame from overheating.
80DVR-3901 Installation and Operation Manual
Tree View Parameters
Unlike the Operator and All List navigation modes, the Tree View is a
multi-level structure that includes all of the available card-edge
parameters. Parameters with the designation [RO] are “read-only.” An
asterisk (*) indicates the default user range or value.
See page 80 for instructions on navigating the Tree View.