NEO AVM-3901-B User manual

AVM-3901-B, -C, -B4, and -C4
Multiplexers/Synchronizers
Installation and Operation Manual
Edition B
175-000087-00

Edition B
June 2005
AVM-3901-B,
AVM-3901-C,
AVM-3901-B4,
and AVM-3901-C4
Multiplexers/Synchronizers
Installation and Operation Manual

AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual iii
Contents
Preface
Manual Information .............................................................................. vii
Purpose ........................................................................................... vii
Audience ........................................................................................ vii
Revision History ............................................................................ vii
Writing Conventions ..................................................................... viii
Obtaining Leitch Documents .......................................................... ix
Unpacking the Module ........................................................................... ix
Safety Standards and Compliances ..........................................................x
Safety Terms and Symbols ...............................................................x
Chapter 1: Introduction
Overview ..................................................................................................1
Product Description ..................................................................................2
Main Features ...........................................................................................3
Front and Back Modules ..........................................................................4
Front Module ....................................................................................4
Back Modules ...................................................................................5
Plug-In Adapter .................................................................................7
Signal Flow ..............................................................................................9
AVM-3901-B and AVM-3901-C .....................................................9
AVM-3901-B4 and -C4 ..................................................................10
Chapter 2: Installation and Removal
Overview ................................................................................................11
Packing List ............................................................................................12
Installing AVM-3901-B, -C, -B4, and -C4 Modules .............................12
Removing AVM-3901-B, -C, -B4, and -C4 Modules ............................12

iv AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual
Contents
Setting Jumpers ..................................................................................... 13
Audio Tracking Pairs ............................................................................ 14
Upgrading AVM-3901-B, -C, -B4, and -C4 Firmware ......................... 15
Upgrading the Firmware (Discovery Method) ............................... 15
Upgrading the Firmware (Drag-and-Drop Method) ...................... 17
Correcting a Failed Upgrading Procedure ............................................. 19
Setting the Module to Fail-Safe Loader Mode ............................... 19
Upgrading the Firmware in Fail-Safe Mode .................................. 19
Rebooting the Module .................................................................... 21
Chapter 3: Operation
Overview ............................................................................................... 23
Operational Notes .................................................................................. 24
PCM and Non-PCM Processing ............................................................ 25
PCM Processing ............................................................................. 26
Non-PCM Processing ..................................................................... 27
Cross-Functional Parameter Changes ................................................... 28
Audio Parameters ........................................................................... 28
Frame Synchronization Function (FSFunction) ............................. 29
Frame Synchronization Mode (FSMode) ...................................... 29
SDI Input Video Standard (SdiStdSet) .......................................... 30
Navigating the Operator and All Lists .................................................. 31
Operator and All List Parameters .......................................................... 32
Setup Parameters ................................................................................... 39
Alarms ................................................................................................... 40
Alarm Synchronization .................................................................. 40
Identifying the Cause of an Alarm ................................................. 40
Enabling or Disabling an Alarm Parameter ................................... 41
Restoring Default Settings ............................................................. 41
State Recovery Parameter Availability ................................................. 42
LEDs and Module Indicators ................................................................ 43
General Information ....................................................................... 43
Card-Edge LED Locations ............................................................. 44
LED Descriptions ........................................................................... 45
Module Indicator Descriptions ....................................................... 46
Chapter 4: Specifications
Overview ............................................................................................... 47
Input ...................................................................................................... 48

AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual v
Contents
AES Audio Input (Balanced) ..........................................................48
AES Audio Input (Unbalanced) ......................................................48
DARS Input (Balanced) ..................................................................49
DARS Input (Unbalanced) ..............................................................49
Genlock Reference Input/Loopback ...............................................49
SDI Video Input ..............................................................................50
Output .....................................................................................................51
AES Audio Output (Balanced) .......................................................51
AES Audio Output (Unbalanced) ...................................................51
SDI Video Output ...........................................................................52
Miscellaneous .........................................................................................53
Propagation Delay ...........................................................................53
Start-Up Time .................................................................................53
Power Consumption ........................................................................53
Appendix A: Tree-View Navigation
Overview ................................................................................................55
Navigating the Tree View ......................................................................56
Tree View Parameters ............................................................................57
Appendix B: Audio Embedding
Overview ................................................................................................61
Embedding Errors ..................................................................................62
Preventing Embedding Errors .........................................................62
Appendix C: Audio Bit Manipulation
Overview ................................................................................................63
Channel Status Bits ...............................................................................64
Validity and User Bits ............................................................................66
Miscellaneous Data ................................................................................66
Index
Keywords ...............................................................................................67

vi AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual
Contents

AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual vii
Preface
Manual Information
Purpose
This manual details the features, installation, operation, maintenance,
and specifications of the NEO™ AVM-3901-B, -C, -B4, and -C4
Multiplexer/Synchronizers.
Audience
This manual is written for technicians and operators responsible for
the installation, setup, maintenance, and operation of the NEO
AVM-3901-B, -C, -B4, and -C4 Multiplexer/Synchronizers.
Revision History
Table P-1. Revision History
Edition Date Revision History
A January 2003 Initial release
B June 2005 Revision of product codes and template
updates

viii AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual
Preface
Writing Conventions
This manual adheres to the following writing conventions.
Table P-2. Writing Conventions
Term or Convention Description
Bold Indicates dialog box, property sheet, field,
button, check box, list box, combo box,
menu, submenu, window, list, and
selection names
Italics Indicates email addresses, names of books
and publications, and first instances of new
terms and specialized words that need
emphasis
CAPS Indicates a specific key on the keyboard,
such as ENTER, TAB, CTRL, ALT,
DELETE
Code Indicates variables or command-line
entries, such as a DOS entry or something
you type into a field.
> Indicates the direction of navigation
through a hierarchy of menus and
windows.
hyperlink Indicates a jump to another location within
the electronic document or elsewhere
Internet address Indicates a jump to a Web site or URL
Note
Indicates important information that helps
to avoid and troubleshoot problems

AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual ix
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 (go to Support>Documentation).
Alternatively, contact your Leitch customer service representative to
request a document.
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:
• 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.

x AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual
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. Alternatively,
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
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.

AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual 1
Chapter 1
Introduction
Overview
AVM-3901-B, -C, -B4, and -C4 modules are multiplexer/synchronizers
designed for NEO™ 1RU and 3RU rack-mounted frames.
This chapter covers the following topics:
•“Product Description” on page 2
•“Front and Back Modules” on page 4
•“Signal Flow” on page 9
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
•Fanmodules
• Resource modules
• Alarm interconnect modules
• Power supplies
• Servicing instructions
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) to access this
information.

2 AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual
Chapter 1: Introduction
Product Description
AVM-3901-B, -C, -B4, and -C4 modules are multiplexer/synchronizers
designed for standard definition video.
AVM-3901-B and -C modules support two AES audio inputs and two
AES processed outputs in balanced (AVM-3901-B) and unbalanced
(AVM-3901-C) formats. AVM-3901-B4 and -C4 modules support four
AES inputs in balanced (AVM-3901-B4) and unbalanced
(AVM-3901-C4) formats.
All versions provide an SDI video input and two SDI video outputs for
video containing embedded audio, as well as an internal video frame
synchronizer and a genlock input with loopback.
Table 1-1. Descriptions of the AVM-3901-B, -C, -B4, and -C4 Modules
Input Output AVM-3901
Version
Digital video SDI 525/625 Digital video SDI 525/625 with multiplexed
audio
AVM-3901-B
Two-channel AES digital audio (110Ω) Two-channel AES processed audio (110Ω)
Digital video SDI 525/625 Digital video SDI 525/625 with multiplexed
audio
AVM-3901-C
Two-channel AES digital audio (75Ω)Two-channel AES processed audio (75Ω)
Digital video SDI 525/625 Digital video SDI 525/625 with multiplexed
audio
AVM-3901-B4
Four-channel AES digital audio (110Ω)
Digital video SDI 525/625 Digital video SDI 525/625 with multiplexed
audio
AVM-3901-C4
Four-channel AES digital audio (75Ω)

AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual 3AVM-3901-B, -C, -B4, and -C4
Chapter 1: Introduction
Main Features
AVM-3901-B, -C, -B4, and -C4 modules have the following main
features:
• SDI video input with auto-detect
• Two SDI video outputs
• Internal video frame synchronizer
• Two AES input channels (-B and -C versions) or four AES input
channels (-B4 and -C4 versions)
• Two AES processed output channels (-B and -C versions)
• Unbalanced DARS input (-B and -C versions) with additional
jumper-selectable balanced input on the -B version
• Audio delay
• Audio tracking capability
• Genlock reference input with loop-through
• Internal audio processing amplifier
• 16-, 20-, or 24-bit audio processing
• Selectable silence for all audio channels
• Audio re-sampling for 32 kHz to 108 kHz AES inputs, with bypass
for data over AES operation
• C-, U-, and V-bit transparency
• Compressed data pass
• Capability for control via card-edge, remote control panels, and
GUI applications such as CCS Pilot™ (3901RES-E resource
module is required for Ethernet and control panel use)

4 AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual
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 AVM-3901-B is the “AVM-3901-B-FM.”
Figure 1-1 illustrates the position of the LEDs on the front modules of
the AVM-3901-B, -C, -B4, and -C4.
Figure 1-1. Card-Edge Controls of the AVM-3901-B, -C, -B4, and -C4-FM Front Modules
Note
The DARS Present LED is not
currently functional on the
AVM-3901-B4 and -C4
versions.
Top view
Front view
Escape button 64 X 16 VFD submodule
Card extractor
Visible display area
Nav+/Nav- switch
(up/down)
Local/Remote switch
(hidden behind extractor)
Enter button
Local/Remote switch
Nav+/Nav- switch
(up/down) Card extractor
Module
Status
Mino
r
Alar
m
Majo
r
Alar
m
Powe
r
SW1
Remote
Local
Nav +
Nav -
Enter
Esc
Major
Alarm Minor Alarm Power Module Status
Standard module indicators
Escape button
SDIpresent(green)
Error(notfunctional)
525(green)
625(green)
Freeze(yellow)
Referencepresent(green)
Referencelocked(green)
(Blank)
Embederror(red)
De-embederror(notfunctional)
Audiosyncerror(notfunctional)
DARSpresent(green)
LEDs
Enter button
(only available in -B and -C versions)

AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual 5AVM-3901-B, -C, -B4, and -C4
Chapter 1: Introduction
Back Modules
In NEO frames, back modules are placed directly behind the front
modules. Back modules are designated by the suffix “-BM.” For
example, the back module of the AVM-3901-B is the
“AVM-3901-B-BM.” See Figures 1-2 to 1-5 for illustrations of the
AVM-3901-B, -C, -B4, and -C4-BM back modules.
Figure 1-2. AVM-3901-B-BM Back Module
Figure 1-3. AVM-3901-C-BM Back Module
Figure 1-4. AVM-3901-B4-BM Back Module
Figure 1-5. AVM-3901-C4-BM Back Module
Note
The input DARS connectors on
the AVM-3901-B4-BM and
AVM-3901-C4-BM back
modules are not currently
functional.
GENLOCK
LOOP
INPUT
DARS
AVM-3901-B
SDI
SDI SDI
OUT 2
OUT 1 INPUT
BALANCED AES IN/OUT DARS INPUT
GENLOCK
LOOP
INPUT
DARS
OUT 2
AES
OUT 1
AES
IN 2
AES
IN 1
AES
OUT 2
SDI
OUT 1
SDI
INPUT
SDI
AVM-3901-C
GENLOCK
LOOP
INPUT
DARS
AVM-3901-B4
SDI
SDI SDI
OUT 2
OUT 1 INPUT
BALANCED AES/DARS INPUT
GENLOCK
LOOP
INPUT
DARS
IN 1
AES
IN 2
AES
IN 3
AES
IN 4
AES
OUT 2
SDI
INPUT
SDI
OUT 1
SDI
AVM-3901-C4

6 AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual
Chapter 1: Introduction
Back Module Pinouts
Figure 1-6 and Figure 1-7 show the pinouts for the Balanced AES In/
Out DARS Input connector on the AVM-3901-B-BM module, and the
Balanced AES/DARS Input connector on the AVM-3901-B4-BM back
module.
Figure 1-6. Pinouts on the AVM-3901-B-BM (Back Module)
Figure 1-7. Pinouts on the AVM-3901-B4-BM (Back Module)
1
13
14
25
AES 2 in
AES 1 in
AES
2
out GND
GND
- G +
- G + - G +- G +
- G +
- +
- +
- +
- +
AES 1 out
DARS in
1
13
14
25
AES 4 in
AES 3 in
AES 2 in
GND
GND
- G +
- G + - G +- G +
- G +
- +
- +
- +
- +
AES 1 in

AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual 7AVM-3901-B, -C, -B4, and -C4
Chapter 1: Introduction
Plug-In Adapter
The balanced AVM-3901-B-BM and AVM-3901-B4-BM back modules
are shipped with a detachable plug-in adapter (AIB-25-3901MF). This
adapter provides terminals for connecting twisted pair audio cables
directly to the back module. Figure 1-8 illustrates the pinouts and screw
terminals for the plug-in adapter.
Figure 1-8. AIB-25-3901MF Balanced Input/Output Connections for the AVM-3901-B-BM
Note
The AIB-25-3901MF is a
universal adapter. Some
terminals on this adapter are not
used with the AVM-3901-B-BM
and the AVM-3901-B4-BM
back modules.
DB2 male connector
G - +
AES 2 out
G - +
AES 1 out
G - +
DARS
G + -
AES 2 in
G + -
AES 3 in
G + -
AES 4 in
G + -
AES 1 in
G + -
AES 3 out
G + -
AES 4 out
AVM-3901-B
front module
AIB-25-3901MF
AES 1 input
AES 2 input
Audio processing
DB2 female
connector
AES 1 output
AES 2 output
DARS input

8 AVM-3901-B, -C, -B4, and -C4 Installation and Operation Manual
Chapter 1: Introduction
Figure 1-9. AIB-25-3901MF Balanced Input/Output Connections for the AVM-3902-B4-BM
DB2 male connector
G - +
AES 2 out
G - +
AES 1 out
G - +
DARS
G + -
AES 2 in
G + -
AES 3 in
G + -
AES 4 in
G + -
AES 1 in
G + -
AES 3 out
G + -
AES 4 out
AVM-3904-B4
front module
AIB-25-3901MF
AES 1 input
AES 2 input
Audio processing
DB2 female
connector
AES 4 input
AES 3 input