This manual details the features, installation procedures, operational
procedures, and specifications of the 6800/7000 Series - Distribution
and Routing Products.
This manual is written for technicians and operators responsible for
installation, setup, and/or operation of the 6800/7000 Series Distribution and Routing Products.
To enhance your understanding, the authors of this manual have
adhered to the following text conventions:
Chapter 5VDA-6830 Video Distribution Amplifier Module
Chapter 6VEA-6830 Video Equalizing Amplifier Module
Chapter 7 VEA-6840 Video Equalizing Amplifier Module
Chapter 8VPD-6830 Programmable Video DA series
Chapter 9VSD-6801 Serial Digital Distribution Amplifier Module
Chapter 10VSE-6801 Serial Equalizing Amplifier Module
Chapter 11VSE-6802 Serial Equalizing Distribution Amplifier
Chapter 12VSM-6802 Digital Composite Video Signal
Chapter 13VSM-6804 Digital Composite Video Signal Monitor
Module
Chapter 14VSR-4041 Serial Video Router Module
LogoMotion Manual
Chapter 1Logo Utilities for 6800 Series Modules
Chapter 2LGI-6801 Serial Digital Logo Generator/Inserter Module
Chapter 3VES-6801 Flash EPROM Side Module
Chapter 4DSK-6801/3 Downstream Serial Keyer
Chapter 5DSK-CP1/2 Downstream Serial Keyer Control Panel
vi6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Frames and Power Supply Manual
Chapter 1Mounting Frames
Chapter 2FR-6801/FR-6801-1 Frames
Chapter 3FR-6804/FR-6804-1 Frames
Chapter 4CF-6801 Cooling Frame
Chapter 5FR-7001 and FR-7000MB MIXBOX
Chapter 66801PS Power Supply Module
Chapter 76804(-1) Power Supply Module
Chapter 87000 Power Supply Module
Chapter 96801PS-48 Power Supply Module
Chapter 106804PS-1-48 Power Supply Module
Preface
6800/7000 Series - Distribution and Routing Products Installation and Operation Manualvii
Unpacking/Shipping Information
This product has been carefully inspected, tested and calibrated before
shipment to ensure years of stable and troublefree service. Please check
the equipment for any visible damage which may have occurred during
transit.
Please confirm that all items listed on the packing list have been
received. If any item on the packing list is missing, please contact your
Leitch dealer. If any item is damaged please contact the carrier. Ensure
that all packaging material is removed from the product and its
associated components before installing the unit.
It is suggested that you keep at least one set of original Leitch packaging,
in the event that a product needs to be returned for service. If the
original packaging is not available, you can purchase replacement
packaging from Leitch at a modest cost or supply your own packaging as
long as it meets the following criteria:
•Packaging must be able to withstand the product weight.
•Product must be held rigid within the packaging.
•There must be at least two inches of space between the product
and the container.
Preface
•The corners of the product must be protected.
Products that are being returned to Leitch for servicing should be
shipped pre-paid in the original packaging material if possible. If the
product is still within the warranty period, the product will be returned
by pre-paid shipment after servicing.
Installation Information
If this product is rack mountable, it should be mounted in an
appropriate rack using the rack mounting positions and rear support
guides provided. It is recommended that each frame be connected to a
separate electrical circuit for protection against circuit overloading. If
this product relies on forced air cooling, it is recommended that all
obstructions to the air flow be removed prior to installing the frame in
the rack.
If this product has a provision for external earth grounding, it is
recommended that the frame be grounded to earth via the protective
earth ground on the rear panel.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manualvii
Preface
Important Safety Instructions
Review the following safety precautions to avoid injury and prevent
damage to this product or any products connected to it. Read these
instructions. Keep these instructions. Heed all warnings. Follow all
instructions.
Servicing
Only qualified personnel should perform service procedures. Refer all
servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way, such as power-supply cord or
plug is damaged, liquid has been spilled or objects have fallen into the
apparatus, the apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.
Safety Terms and Symbols
Terms and Symbols in This 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.
Terms and Symbols on the Product
DANGER:
High voltage and indicates a personal injury hazard immediately
viii6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
accessible as one reads the marking.
WARNING:
Indicates a personal injury hazard not immediately accessible as
one reads the marking.
CAUTION:
Indicates a hazard to property including the product or to take
attention and refer to the manual.
Injury Precautions
Preface
Protective ground (earth) terminal.
Fuse:
Replace with same type and rating of fuse.
Observe precautions for handling electrostatic-sensitive devices.
WARNING!
To reduce the risk of electric shock, do not expose this apparatus to
rain or moisture.
CAUTION
RISK OF ELECTRIC SHO CK
DO NOT OPEN
WARNING!
Potentially lethal voltages are present within this product’s frame
during normal operation. The AC power cord must be
disconnected from the frame before the top panel is removed. (In
frames with multiple power supplies, remove ALL power cords.)
Power should not be applied to the frame while the top is open,
unless properly trained personnel are servicing the unit.
[PL Poland] Przod zdjeciem pokrywy wyciagnac wtyczke z gniazda
sieciowego.
[French] AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS
OUVRIR. INSTALLER SUR SUPPORT DE MONTAGE
SEULEMENT.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manualix
Preface
AVIS - Risque de choc electrique. Ne pas
ouvrir.
x6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Preface
Use Proper Power Cord
To avoid fire hazard, use only the power cord specified for this
product.
Ground the Product
Do not defeat the safety purpose of the polarized or grounding-type
plug. A polarized plug has two blades with one wider than the other.
A grounding type plug has two blades and a third grounding prong.
The wide blade or the third prong are provided for your safety.
When the provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.
[United Kingdom] WARNING: THIS APPLIANCE MUST BE
EARTHED.
[Sweden] APPARATEN SKALL ANSLUTAS TILL JORDAT
UTTAG NÄR DEN ANSLUTS TILL ETT NÄTVERK.
Do Not Operate Without Covers
To avoid electrical shock or fire hazard, do not operate this product
with covers or panels removed.
Use Proper Fuse
To avoid fire hazard, use only the fuse type and rating specified for
this product.
Do Not Operate in Wet/Damp Conditions
To reduce the risk of fire or electric shock, do not expose this
apparatus to rain or moisture
Do Not Operate in an Explosive Atmosphere
To avoid injury or fire hazard, do not operate this product in an
explosive atmosphere.
Avoid Exposed Circuitry
To avoid injury, remove jewelry such as rings, watches, and other
metallic objects. Do not touch exposed connections and
components when power is present.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manualxi
Preface
Product Damage Precautions
Use Proper Power Source
Do not operate this product from a power source that supplies
more than the specified voltage.
Use Proper Voltage Setting
Before applying power, ensure that the line selector is in the proper
position for the power source being used.
Provide Proper Ventilation
To prevent product overheating, provide proper ventilation.
Do Not Block Any Ventilation Openings
Do not block any of the ventilation openings. Install in accordance
with the manufacturer’s instructions.
Only Use Attachments/Accessories Specified by the Manufacturer
Do Not Operate With Suspected Failures
Refer all servicing to qualified service personnel. Servicing is
required when the apparatus has been damaged in any way, such as
power-supply cord or plug is damaged, liquid has been spilled or
objects have fallen into the apparatus, the apparatus has been
exposed to rain or moisture, does not operate normally, or has been
dropped.
For Products with Multiple Power Cords:
CAUTION: This unit can have more than one power supply cord.
To de-energize the internal circuitry, disconnect all power cords
before servicing.
[Norwegian] ADVARSEL: Utstyret kan ha mere ennn en
tilførselsledning. For å gjore interne deler spennigsløse må alle
tilførselsledningene trekkes ut.
[Sweden] VARNING: Denna apparat har mer än en nätanslutning.
Samtliga nätkablar måste bortkopplas för att göra de interna
kretsarna spänningsfria.
xii6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Preface
Do not use this apparatus near water
Do not expose this apparatus to dripping or splashing water.
Ensure that no objects filled with liquid, such as vases or cups, are
placed on the apparatus.
Clean only with a dry cloth
Keep Product Away from Heat Sources
Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.
Install Near Socket Outlet
The equipment shall be installed near the socket outlet, and a
disconnect device shall be easily accessible.
Protect the Power Cord
Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the point where
they exit from the apparatus.
Unplug this Apparatus During Lightning Storms
Unplug this apparatus during lightning storms or when unused for
long periods of time. Note: A UPS or power surge suppressor could
be used as an alternative.
Attention:
Observe precautions for handling electrostatic-sensitive devices.See
“Preventing Electrostatic Discharge” below for details.
Fuse Replacement:
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH THE SAME TYPE OF FUSE.
[French]ATTENTION: REMPLACER UNIQUEMENT PAR UN
FUSIBLE DE MEME TYPE.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manualxiii
Preface
Battery Use Warnings
CAUTION:
DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY
PLACED. REPLACE ONLY WITH THE SAME OR
EQUIVALENT TYPE RECOMMENDED BY THE
MANUFACTURER. DISCARD USED BATTERIES ACCORDING
TO THE MANUFACTURER’S INSTRUCTIONS.
[FI Finland] VAROITUS: Paristo voi rajahtaa, jos se on
virheellisesti asennettu. Vaihda paristo ainoastaan valmistajan
suosittelemaan tyyppun. Havita kaytetty paristo valmistajan
ohjeiden mukaisesti.
[SE Sweden] VARNING: Explosionsfara vid felaktigt batteribyte.
Anvand samma batterityp eller en eller en ekvivalent typ som
rekommenderas av tillverkaren. Kassera anvant batteri enligt
fabrikantens instruktion.
[D Denmark]
Advarsel! Lithiumbatteri. Eksplosionsfare ved
fejlagtig handtering. Udskift ning ma kun ske med
batteri af samme fabrikat oq type. Lever det
brugte batteri tilbage till leverandoren.
[KO Korean]
xiv6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Preventing Electrostatic Discharge
Preface
CAUTION: Electrostatic discharge (ESD) can damage components
in the product. To prevent ESD, observe these precautions when
directed to do so:
• Use a Ground Strap. Wear a grounded antistatic wrist strap to
discharge the static voltage from your body while installing or
removing sensitive components.
• Use a Safe Work Area. Do not use any devices capable of
generating or holding a static charge in the work area where you
install or remove sensitive components. Avoid handling sensitive
components in areas that have a floor or benchtop surface capable
of generating a static charge.
• Handle Components Carefully. Do not slide sensitive
components over any surface. Do not touch exposed connector
pins. Handle sensitive components as little as possible.
• Transport and Store Carefully. Transport and store sensitive
components in a static-protected bag or container.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manualxv
Preface
Certifications and Compliances
This product has been tested and found to comply with the following
CE, FCC, UL, ICES and CSA standards:
EMC Standards
EN55014Limits and methods of measurement of radio disturbance
characteristics of electric motor-operated and thermal
appliances for household and similar purposes, electric
tools and similar electric apparatus.
EN55022Limits and methods of measurement of radio disturbance
characteristics of information technology equipment Class
A.
EN55103-1Electromagnetic compatibility—Product family standard
for audio, video, audio-visual and entertainment lighting
control apparatus for professional use, Part 1: Emission,
Environment E4.
EN55103-2Electromagnetic compatibility—Product family standard
for audio, video, audio-visual and entertainment lighting
control apparatus for professional use, Part 2: Emission,
Environment E4.
EN61000-4-3Radiated radio-frequency electromagnetic field immunity
test 1V/m {1kHz 80% AM, 80-1000MHz}.
EN61000-4-4Electrical Fast transient requirements “Burst”, 0.5kV Sig. &
Ctrl. Lines 0.5kV a.c. & d.c. Power line, 0.5kV functional
earth.
EN61000-4-5Surge Immunity test 0.5kV a.c. Power line.
EN61000-4-6Immunity to conducted disturbances induced by radio
frequency fields 1V rms 0.15-80MHz Sig. & Ctrl. Lines, 3V
rms 0.15-80MHz d.c. Power line, 1V rms 0.15-80MHz a.c.
Power line, 1V rms 0.15-80MHz functional earth.
EN61000-4-11 Voltage dips, short interruptions and voltage variations-
immunity tests.
xvi6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Safety Standards
Preface
per the provision of the Electromagnetic Compatibility Directive 89/
336/EEC of 3 May 1989 as amended by 92/31EEC of 28 April 1992 and
93/68/EEC, Article 5 of 22 July 1993.
These devices are for professional use only and comply with Part 15 of
FCC rules. Operation is subject to the following two conditions:
1. These devices may cause interference to Radio and TV receivers in
residential areas
2. These devices will accept any interference received, including
interference that may cause undesired operations.
These devices do not exceed the class A limits for radio noise emissions
from digital apparatus as set out in the interference standard entitled
“Digital apparatus”, ICES-003 of the Canadian Department of
Communications.
EN60065Safety requirements for mains operated electronic and
related apparatus for household and similar general use
[IEC 60065: 1985, 5th Edition + A1: 1987 + A2: 1989 + A3:
1992, (modified)], per the provision of the Low-Voltage
Directive 73/23/EEC of February 19, 1973, as amended by
93/68/EEC.
UL 1419
CSA C22.2
No. 1
Safety requirements for audio, video and similar electronic
equipment.
Safety Standards (6801PS-48) Only
EN 60950-1992 Safety of information technology equipment, including
electrical business equipment (Amendments A1: 1993, A2:
1993, A3: 1995, A4: 1997), per the provision of the LowVoltage Directive 73/23/EEC of February 19, 1973 as
amended by 93/68/EEC.
UL 1950Safety of information technology equipment, including
electrical business equipment.
CSA C22.2
No.95095
6800/7000 Series - Distribution and Routing Products Installation and Operation Manualxvii
Safety of information technology equipment, including
electrical business equipment.
Preface
Safety Standards: (6801PS-1-48) Only
EN 60950-2000 Safety of information technology equipment, including
UL 1950Safety of information technology equipment, including
electrical business equipment (IEC-60950:1999), per the
provision of the Low-Voltage Directive 73/23/EEC of
February 19, 1973 as amended by 93/68/EEC.
electrical business equipment.
CSA C22.2
No.950
Safety of information technology equipment, including
electrical business equipment.
xviii6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Contents
Chapter 1: AES-6880 AES/EBU
Digital Audio Distribution Amplifier Module ..............1
Test Points ....................................................................................... 120
Control Panel .......................................................................................... 121
xxvi6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Overview
Chapter 1
AES-6880 AES/EBU
Digital Audio Distribution
Amplifier Module
The AES-6880 is a differential input, eight output; AES/EBU digital
audio distribution amplifier. Using Coaxial Cable, The AES-6880 digital
audio distribution amplifier features cable auto-equalization, data
reclocking, and incoming data error detection and reporting.The error
detection and reporting features utilize front-mounted LEDs and an
external alarm contact closure.
Housed in either an FR-6800 or FR-7000 series frame, the AES-6880
meets interface standards according to SMPTE 276M.
Specifications and designs are subject to change without notice.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual1
Chapter 1: AES-6880 AES/EBU Digital Audio Distribution Amplifier ModuleBoard Layout and Functionality
A
Board Layout and Functionality
The following diagrams show the layout and functionality of the
AES-6880 board.
Figure 1-1. AES-6880 Printed Circuit Board
Functional Block Diagram
AES
W
75
Coax
Input
EQ
Mode
Select
Manual Auto
Manual
EQ Adjust
Cable
EQ
Auto
EQ
ALL OK
No Lock
Bi-Phase Coding
Parity
CRC
Confidence Flag
Val idi ty
ALARM
Reclocked
Reconstruction
External
Alarm
Configure
ES
W
75
Coax
Outputs
(x8)
External Alarm
Contact Closure
Figure 1-2. AES-6880 Functional Block Diagram
2 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Equalization Adjustment Chapter 1: AES-6880 AES/EBU Digital Audio Distribution Amplifier Module
Equalization Adjustment
The AES-6880 distribution amplifier provides two options for
equalization adjustment: Manual and Aut omatic . The mode is selected
using jumper J1 near the front edge of the DA card. See Figure 1-3 on
page 4 for jumper location.
Manual Equalization
In Manual adjust mode, a card-edge, multi-turn potentiometer (R19) is
used for adjusting equalization. The Confidence flag warning on the
card-edge LED is used to determine the amount of equalization required
without external test equipment. If the Confidence flag error LED is on,
then more equalization is needed.
To increase the amount of equalization, simply use a screwdriver to turn
the Manual equalization adjustment potentiometer (R19) clockwise until
the Confidence LED indicator turns off. See Figure 1-3 on page 4 for
potentiometer location.
Automatic Equalization
In Aut omatic adjust mode, the distribution amplifier automatically sets
the amount of cable equalization needed. This mode eliminates the need
The factory default
configurations for J1 is in the
“Aut o” position, and the Manual equalization
adjustment potentiometer
(R19) is set for zero
compensation.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual3
to re-adjust equalization if another distribution amplifier is installed or
exchanged, or if the cable length changes.
The equalization is designed for using 2000 ft (600 m) of Belden 8281
cable or the equivalent. In practice, if the incoming signal is a standard
AES signal for coaxial cable systems, this DA can compensate up to 6000
ft (1800 m) of Belden 8281 cable or equivalent.
Chapter 1: AES-6880 AES/EBU Digital Audio Distribution Amplifier ModuleEqualization Adjustment
A
uto
EQ
J1
Manual
EQ Adjust
All OK
No Lock
Bi-Phase CodeRed LED
Parity
CRC
ConfidenceRed LED
Val idi ty
Alarm
R19
Green LED
Red LED
Red LED
Red LED
Red LED
Red LED
Multi-turn potentiometer
used to adjust equalization.
(Manual EQ Mode Only)
Figure 1-3. AES-6880 Card-Edge View
Manual
EQ
4 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Error Detection and Reporting Chapter 1: AES-6880 AES/EBU Digital Audio Distribution Amplifier Module
Error Detection and Reporting
The AES-6880 DA constantly monitors the incoming AES data stream
and reports the following error conditions via the LED indicators
mounted near the card’s front edge. LED indicators and conditions are
described in the following table:
ConditionIndicatorDescription Of Condition
All OK;
No Errors
No LockRed LEDSignal is not present or cannot be locked.
Biphase Coding
Error
Parity ErrorRed LEDSRD stream’s parity bit is not set as
CRC Error Red LEDThe CRC value calculated for the
Confidence Flag
Error
Validity ErrorRed LEDAES stream’s validity bit is high.
Green LEDNo errors detected.
Red LEDBiphase coding of incoming date is
incorrect.
specified.
incoming data does not match the CRC
byte of the channel status word.
Red LEDThe received data eye opening is less
than a half-bit period, indicating a
possible lack of signal strength or high
jitter.
May also indicate that insufficient EA is
applied.
The incoming data is not suitable for
conversion to an analog audio signal.
AlarmRed LEDIndication that the external alarm
contact closure is asserted, and this card
is reporting an alarm.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual5
Chapter 1: AES-6880 AES/EBU Digital Audio Distribution Amplifier ModuleError Detection and Reporting
A
A
User Configurable Contact Closure Alarm Indicator
A red LED mounted under the Error LEDs on the front edge of the DA
card provides a user-configurable Contact Closure alarm indicator.
When this LED is on, the external alarm contact closure is asserted,
indicating an error has occurred.
Jumpe rs J3A-F are used to determine which error conditions will trigger
the alarm (see Figure 1-4 below). When all of the jumpers are in place,
any of the condition errors will trigger the Contact Closure alarm to be
asserted. If one of these jumpers is removed, then the error condition
associated with the missing jumper may occur but will not trigger the
Contact Closure alarm to be asserted and the Alarm LED will not light.
Whenever the contact closure alarm is asserted, the Alarm LED will light
and an alarm Contact Closure signal will be sent out.
6 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Error Detection and Reporting Chapter 1: AES-6880 AES/EBU Digital Audio Distribution Amplifier Module
External Alarm
An external alarm may be connected to an FR-6800 or FR-7000 series
frame housing this and other DAs. The alarm is shared by all the DA
modules housed within the frame. If a card within the frame detects and
triggers the Contact Closure alarm, the external alarm is asserted.
Figure 1-5 below shows how a typical alarm configuration looks within a
system.
Figure 1-5. External Alarm Connections
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual7
Chapter 1: AES-6880 AES/EBU Digital Audio Distribution Amplifier ModuleSpecifications
Specifications
Inputs
ItemSpecification
Number of Inputs1
Input Coupling Transformer Coupling
Output
Input Impedance 75
Input Return Loss >30 dB
Normal Input Signal
Level
Minimum Input
Signal Level
W
1.0 Vp-p
0.1 Vp-p
ItemSpecification
Number of Outputs8
Output Impedance 75
Output Return Loss 30 dB
Level 1.0 Vp-p
DC Offset <50 mV
EQ2
EQ Mode Automatic or manual adjustment
ReclockYes
W
000 ft (600 m) Belden 8281 cable or equivalent
Output Jitter <5 ns
Rise and Fall Time Between 35 ns and 42 ns
Propagation Delay Approximately 600 ns
8 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Specifications Chapter 1: AES-6880 AES/EBU Digital Audio Distribution Amplifier Module
Power Supply
The power supply equipped in either an FR-6800 or FR-7000 series
frame is appropriate for the AES-6880. The power supply supplies
±6.5 V to the module.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual9
Chapter 1: AES-6880 AES/EBU Digital Audio Distribution Amplifier ModuleSpecifications
10 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
DNH-6800 DigiNet Hub Module
Overview
Chapter 2
The DNH-6800 DigiNet Hub module connects up to nine separate
DigiNet cable segments into one logical control network, making it
possible to span large physical distances and support a greater number
of unit nodes without degradation of signal quality due to attenuation
and return loss.
A data stream originating from a node on any one of the nine DigiNet
segments is automatically detected, reclocked, reshaped, and
retransmitted to all other segments by the DNH-6800. DigiNet’s Carrier
Sense Multiple Access with Collision Detect (CSMA/CD) protocol is
supported by implementing independent collision detection on each
channel and by a jamming mechanism that propagates a collision event
detected on a transmitting channel to transmitting nodes on all other
channels (see Figure 2-1 “DNH-6800 Block Diagram Flow” on page 12).
Specifications and designs are subject to change without notice.
6800/7000 Series - Distribution and Routing Products Installation and Opertion Manual11
Chapter 2: DNH-6800 DigiNet Hub ModuleOverview
Block Diagram Flow
Port
0
1
2
3
4
5
6
7
8
Coax
Tra nc eiv ers
Collision
Detection
Channel
Arbitration
Reclocking
Figure 2-1. DNH-6800 Block Diagram Flow
LED
Driver
User
Interface
LEDs
12 6800/7000 Series - Distribution and Routing Products Installation and Opertion Manual
The DNH-6800 is designed to be used in a 1RU FR-680x and FR-7001
frame, or a 2RU FR-680x frame. A 1RU frame will accommodate a
maximum of Four DNH-6800s, while a 2RU will accommodate a
maximum of Ten DNH-6800s.
Mounting Requirements
The DNH-6800 module requires 1.75 in. (44 mm) of standard 19 in.
(483mm) rack space. The depth from the mounting surface is 17.5 in.
(445 mm).
Cooling
The DNH-6800 unit is designed to operate in an ambient temperature
range of 0
but care should be taken to prevent excessive heat rise in closed,
unventilated equipment racks.
° to +50°C. No special provisions for cooling are necessary,
6800/7000 Series - Distribution and Routing Produc ts Installation and Opertion Manual15
Chapter 2: DNH-6800 DigiNet Hub ModuleConnections
Connections
Channel 0 is connected to the dedicated DigiNet port (AUX B) of a given
6800 series frame. To allow several DNHs to be contained within a single
frame without excessive loading of the transceivers, it is not terminated.
Auxiliary B (Channel 0) can be disabled to allow several DNH modules
in a single frame to be isolated from each other. An external terminator
should always be installed on the frame’s dedicated DigiNet connector.
The other eight channels are connected to the eight output BNCs located
on the backplane (the backplane’s input BNC is unused).
16 6800/7000 Series - Distribution and Routing Products Installation and Opertion Manual
The most suitable configuration for a network is dependent upon its
size. Examples of small, medium, and large networks are shown in the
following sections.
Small Network
A small network is defined as having between 1 to 50 unit nodes with no
DigiNet Hub module.
75
W
Termination
DigiNet
Node
DigiNet
Node
DigiNet
Node
DigiNet
Node
DigiNet
Node
DigiNet
Node
Figure 2-2. DNH-6800 Small Network
DigiNet
Node
DigiNet
Node
75
W
Termination
6800/7000 Series - Distribution and Routing Produc ts Installation and Opertion Manual17
The user interface consists of LEDs that indicate various states or
activities, a jumper for disabling Channel 0, and a Reset button. These
are described in the table below and shown in Figure 2-5 on page 21.
When a signal collision occurs,
the DNH-6800 briefly jams all
the nodes from transmitting.
The nodes then begin retransmitting the packets at
randomized intervals.
Indicators
and Controls
Power LEDThe green power LED indicates that the DNH-6800 is
Channel LEDsEach channel has a pair of LEDs, one green and one
Jamming LEDThe jamming process occurs in conjunction with the
Channel 0 Disable
Jumper
Configuration LEDIn the event of a configuration failure, this LED
Reset ButtonThe Reset button is used to reset the DNH-6800
Function
powered on.
red.
• The green LED lights when signal transmission is
occurring on that channel.
•The red LED briefly lights when a signal collision
occurs on that channel.
collision detection feature and is indicated by a red
LED.
Channel 0 is disabled with this jumper.
This allows each DNH-6800 module within a single
frame to act independently.
remains continuously lit.
module after a configuration failure.
20 6800/7000 Series - Distribution and Routing Products Installation and Opertion Manual
User Interface Chapter 2: DNH-6800 DigiNet Hub Module
FR-680X Internal
Status LEDs
Red = Collision
Green = Activity
Reset Button
Port Disable
Configuration. LED
Port 0 (Internal)
Power LED
Jam LED
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6
Port 7
Port 8
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D20
D21
SW1
Figure 2-5. DNH-6800 Board Graphic Showing Indicators and Controls
6800/7000 Series - Distribution and Routing Produc ts Installation and Opertion Manual21
22 6800/7000 Series - Distribution and Routing Products Installation and Opertion Manual
Chapter 3
EDH-6800-2 EDH Detection/Insertion
Serial Distribution Amplifier Module
Overview
The EDH-6800-2 is a versatile serial distribution amplifier that also
functions as a digital video Error Detection and Handling (EDH) check
word analyzer and decoder. As a distribution amplifier, it provides
equalization and reclocking to eight serial outputs. As an EDH analyzer/
inserter, it can detect errors on input signals that contain EDH
information and/or insert EDH into signals where it does not already
exist.
The EDH-6800-2 functions with composite (143 Mb/s), component
(270 Mb/s), and the proposed 16:9 (360 Mb/s) standards.
With EDH recognized as a method of verifying serial signals for
impairments, the EDH-6800-2 offers a compact and cost-effective way
of monitoring EDH in serial links without using expensive laboratory
EDH analysis is not currently
available for 360 Mb/s mode.
analyzers. It also provides the means to “inject” EDH check words into
serial digital video signal paths. With its eight equalized and reclocked
outputs, the EDH-6800-2 can also be used within a system in place of a
serial distribution amplifier, with the added benefit of EDH.
Controls and indicators provide a comprehensive set of analysis
functions. With them, EDH encoding on the output signal can be turned
on or off and input presence and status are indicated. An on-board
audible alarm can be enabled to alert the user to input signal EDH errors
and an opto-isolated “contact-to-ground” signal can be used to interface
to any external fault warning system.
Specifications and designs are subject to change without notice.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual23
Chapter 3: EDH-6800-2 EDH Detection/Insertion Serial Distribution Amplifier ModuleSpecifications
Specifications
Serial Video Input
ItemSpecification
Standards
ConnectorBNC per IEC 169-8
• SMPTE 259 M-A: 143 Mb/s, NTSC
• SMPTE 259 M-C: 270 Mb/s; 525/625 component
• SMPTE 259 M-D: 360 Mb/s, 525/625 is
supported in simple DA mode
24 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
W
Specifications Chapter 3: EDH-6800-2 EDH Detection/Insertion Serial Distribution Amplifier Module
ItemSpecification
DC Offset0 V ± 0.5 V
Rise and Fall Time400-700 ps (20 to 80% amplitude)
Control Interface
Power
Overshoot
10% of amplitude (all output terminated)
ItemSpecification
DigiNet Port
Connector
75 BNCL
ItemSpecification
Total Power
Dissipation
Positive rail: 4.3 W
Negative rail: 0.1 W
Total: 4.4 W
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual25
Chapter 3: EDH-6800-2 EDH Detection/Insertion Serial Distribution Amplifier ModuleInstallation
Installation
The EDH-6800-2 module can be installed in an FR-680x and FR-7001
series frame, as well as either an FR-7000MB or EDH-6800-2MB MIX
BOX frame. When installed into a FR-7001 or MIX BOX frame, a
corresponding back module is required.
The EDH-6800-2MB MIX BOX frame comes equipped with a dedicated
control panel.
Functional Block Diagram
Serial In
(143-360 Mb/s)
Auto
Eq.
Re-
Clock
Error Indicators
and Alarms
Figure 3-1. EDH-6800-2 Block Diagram
EDH
Detector/
Inserter
RJ11 Aux A connector
8 Serial
Outputs
26 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Controls, Indicators, and Jumpers Chapter 3: EDH-6800-2 EDH Detection/Insertion Serial Distribution Amplifier Module
Controls, Indicators, and Jumpers
The following sections list the EDH-6800-2 switches, LEDs, and
jumpers.
When the switch is in the Lat (latching) position, any
detected error is captured, held, and displayed on the LED
indicators until the switch is moved back to the Con
(continuous) position. In the Con position, errors are
displayed on the LED indicators only for the duration of
the field with errors.
Service (SW2) DigiNet service push button.
When one or multiple EDH-6800-2 modules are linked
together over a 75
the central controller (PC or Leitch DigiNet panel), the
Service button allows you to locate the position of the
particular EDH-6800-2 in the network in certain
circumstances.
W network (DigiNet) and connected to
Alarm (SW3) Audible alarm On/Off switch.
This switch allows you to turn the audible alarm On or Off.
In the On position, the sound transducer will produce a
high-pitched sound when an error is detected in the
incoming serial digital video (as configured by the FF/AP
jumper).
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual27
Chapter 3: EDH-6800-2 EDH Detection/Insertion Serial Distribution Amplifier ModuleControls, Indicators, and Jumpers
SwitchDescription
All EDH-6800-2 (and
similar) mo dules should have
the same setting for the
Frame ID switches. This is
not strictly necessary if
9000SSN Frame ID is in use,
since all modules in the same
frame will use the same
9000SSN Frame ID.
LEDs
Frame ID
(SW4, SW5)
Frame ID switches.
If EDH-6800-2 does not detect the presence of the
9000SSN Frame ID device (if none are present at the RJ11,
or if FR_ID jumpers are Off), it will attempt to use the dual
HEX Frame ID switches (SW4 and SW5) to determine the
frame ID.
SW4 is the most significant hex digit, while SW5 is the least
significant. For example, for a Frame ID of 0x42, SW4
should be set to 4 and SW5 should be set to 2. Any hex value
other than 0xFF may be used as an EDH-6800-2 Frame ID.
A Frame ID setting of 0 x FF indicates that Frame ID setting
should not be used. In the latter case, EDH-6800-2 module
network identification will be determined by the network
controller (for example, EDH view application).
EDH-6800-2 (and similar modules) should use the
following Frame ID modes, listed in order of preference:
• 9000SSN-based Frame ID
• Frame ID switches-based Frame ID
• Controller-configured network identification
LEDDescription
360, 270, 143,
525, 625
Vid_PresVideo Present Indication.
EDH_PresEDH present indication.
28 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Line standard and rate indication.
These LEDs indicate the current operating standard of the
incoming serial digital video.
• 360/270/143 refer to the corresponding serial digital
rates.
• 525/625 refer to the corresponding line standard.
The Video Present LED lights when adequate 4:2:2 input
digital video is applied to the rear input connector.
The EDH Present LED lights when the input digital video
stream contains the error status packet, as defined by RP
165-1993 SMPTE Recommended Practice.
Controls, Indicators, and Jumpers Chapter 3: EDH-6800-2 EDH Detection/Insertion Serial Distribution Amplifier Module
LEDDescription
AlarmAlarm indication.
This LED lights when errors are detected in the input
digital video data. The type of error that triggers this LED is
configured by the FF/AP jumper.
AP_ERRActive Picture CRC Error Indication (see page 30).
The Active Picture Error LED lights when input digital
video errors are detected only in the active picture region.
FF_ErrFull field crc error indication.
The Full Field Error LED lights when input digital video
errors are detected anywhere in the field, including AP,
ANC, vertical blanking interval, and horizontal blanking
interval regions.
CSUM_ErrChecksum error indication.
The Checksum Error LED lights to indicate an input EDH
packet checksum error.
D18Service-micro controller status indication (normally off).
The Service LED blinks when the module is powered up,
but remains off during normal operation.
If the LED is continuously on, or blinking, there is the
possibility of hardware failure. The LED remains on when
the Service switch (SW2) is pressed.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual29
Chapter 3: EDH-6800-2 EDH Detection/Insertion Serial Distribution Amplifier ModuleControls, Indicators, and Jumpers
Jumpers
JumperDescription
525/625Forces the line standard to 525, 625, or auto.
This jumper allows you to set the EDH-6800-2
configuration to the known line standard of either 525 or
625.
Removing the jumper puts the module in Aut o mode. In
Auto Line Standard mode, the EDH-6800-2 automatically
detects the line standard and configures accordingly.
This jumper is only active if the Remote jumper is set to EN.
FF/APSelects the FF or AP region.
This jumper allows you to select the error (Active Picture
or Full Field) which will activate the Alarm LED, the
audible alarm, and the fault reporting opto-isolated output.
This jumper is only active if the Remote jumper is set to EN.
Remote EN/
DIS
Enables the Remote.
EDH-6800-2 can support three external control interfaces:
• Local - module-edge LED, jumpers, and switches
• Network - remote control network interface (DigiNet)
• Front Panel - MIXBOX front panel interface
•The Remote EN/DIS jumper, in concert with automatic
front-panel detection, places the EDH-6800-2 into one
of the following modes:
Remote
Jumper
DISNOLOCAL only
DISYESFRONT PANEL only
ENNONETWORK only
ENYESNETWORK and FRONT PANEL
Front Panel
Detected
Control Mode
EDH On/OffEnables EDH processing or bypass mode.
This jumper enables EDH processing (if On) or places
EDH-6800-2 into bypass mode (if Off). In bypass mode,
the EDH-6800-2 acts as a simple DA, and both input EDH
analysis and output EDH generation are disabled.
30 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Controls, Indicators, and Jumpers Chapter 3: EDH-6800-2 EDH Detection/Insertion Serial Distribution Amplifier Module
JumperDescription
Both jumpers (J5 and J8) must
be configured identically. And
all EDH-6800-2 (and similar)
modules in the same frame
must be configured ident ically
(FR-ID On or Off).
FR_ID On/Off Selects between external 9000SSN Frame ID or fault
opto-isolated output.
When set to On, EDH-6800-2 will attempt to read the
Frame ID from the 9000SSN silicon serial number device at
the FR-680X series frame RJ11 connector. When set to Off,
the EDH-6800-2 will use the RJ11 connector for the fault
reporting output (see page 32.) When both jumpers are
removed, the EDH-6800-2 is isolated from the RJ11
connector. If EDH-6800-2 does not detect the 9000SSN
device (if none is present at the RJ11 or if FR-ID is Off),
EDH-6800-2 will attempt to use the dual hex Frame ID
switches (SW4 and SW5) to determine Frame ID.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual31
Chapter 3: EDH-6800-2 EDH Detection/Insertion Serial Distribution Amplifier ModuleFault Reporting Output
Fault Reporting Output
The fault-reporting optically-isolated output is accessible at the rear RJ11
connector of the FR-680X series frame. RJ11 pins 3 and 4 are used as
negative and positive terminals respectively.
The output is open when no errors are occurring, is closed with frame
power removed, and pulses closed for the duration of a field with EDH
errors (as configured by the FF/AP jumper).
Figure 3-2 illustrates a basic interface:
Figure 3-2. Fault Reporting Output
32 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
USM-6800 PAL/NTSC Monitoring
Overview
Chapter 4
Encoder Module
The USM-6800 offers the combination of a 4 output NTSC/PAL encoder
and a 4 Output serial distribution amplifier. It is capable of removing
jitter from the 4:2:2 serial signal before encoding and conversion to
analog. The result is a clean composite analog signal which also
maintains zero SCH. Automatic switching based on the input line rate of
525 or 625 lines is provided.
The USM-6800 can also be configured to provide RGB, YUV or YC
outputs. When RGB or YUV are selected, three of the output BNCs
provide the component signal, while the remaining BNC still provides
composite analog.
When YC is selected, two of the outputs are switched to YC, the other
two remaining NTSC or PAL, depending upon the line standard in use.
An optional adaptor, which plugs into the rear BNCs, provides a
standard YC connector. The four serial digital outputs are always
present.
Specifications and designs are subject to change without notice.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual33
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual37
Chapter 4: USM-6800 PAL/NTSC Monitoring Encoder ModuleControls and Indicators
Controls and Indicators
The controls and indicators described in the tables below are located at
the front edge of the module.
SwitchFunction
16-position rotary switchSelector
Status LEDs
Default Settings
3-position up/down
momentary switch
Gain and frequency multi-turn
potentiometer
Adjuster
Adjuster
LEDsFunction
625 Auto 525 LEDWhen this Green Auto LED is on, this
indicates the detected standard. When the
Auto LED is off, this indicates a forced line
standard.
Error LEDThis Red LED indicates: there is loss of
video, the forced line standard is different
than the detected standard, or there is a
missing or mispositioned EAV-timing
reference signal in the digital data.
The USM-6800 is shipped with the following default settings:
LEDsFunction
StandardSet to Aut o
OutputSet to Component YUV
V BlankingSet to Pass
SetupSet to On
BurstSet to On
ChromaSet to On
38 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
User Interface Chapter 4: USM-6800 PAL/NTSC Monitoring Encoder Module
User Interface
The following chart describes the Mode Select switch and Toggle switch
functions:
Mode Select SwitchToggle Switch
PositionFunctionDownUp
Data is stored to the
*EEPROM under the
following conditions:
-
Any change in the Mode
Select switch position, only if
data has changed.
-After 30 seconds of
inactivity, only if data has
changed.
There are discrete sets of data
for 525 and 625; only the data
for the standard in use is
stored.
**In the Component
configuration, one composite
output is generated as well as
the RGB or YUV analog
outputs.
0Operate
•Normal operation; To g g l e switch disabled.
• Store any changed settings to *EEPROM.
1StandardForce: Forces the
configuration of the
board into 525 or 625
line standard
depending on position
2 of Mode Select switch
configuration.
2Force
Standard
625: Forces the board
configuration into the
625 line standard.
Position 1 of the Mode Select switch should be
configured for the
Force mode.
3RESERVED
4OutputComponent: Generates
RGB or YUV analog
outputs depending on
position 6 of the Mode Select switch
configuration.**
Auto : The
configuration of the
board 525 or 625 line
standard depends on
the detected standard.
525: Forces the board
configuration into the
525 line standard.
Position 1 of the Mod e Select switch should be
configured for the
Force mode.
Composite: Generates
the YC=2 composite or
Y composite analog
outputs depending on
position 5 of the Mode Select switch
configuration.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual39
***This configuration
decreases board power
consumption from 5.4 to 5.0 W
and requires that the jumpers
be set to Posi tion B. In all other
cases, they should be in
position A.
PositionFunctionDownUp
5Composite2 comp+YC: Generates
2 composite and YC
analog outputs.
Position 4 of Mode Select switch should be
configured for the
Composite mode.
6ComponentRGB: Generates RGB
analog output. Sync is
present on all of the
outputs. On-board
potentiometer allows
the adjustment of
overall gain and each
channel gain
independently.
Position 4 of the Mode Select switch should be
configured for
Component output.
7V BlankingBlank: All of the
information in the VBI
is blanked: Up to line
20 in 525 line standard,
up to line 23 in the 625
4 comp: Generates 4
composite analog
outputs. Position 4 of
the Mode Select switch
should be configured
for the Composite
mode.***
YUV: Generates YUV
analog outputs. Sync is
present on the Y
output. On-board
potentiometer allows
the adjustment of the
overall gain and each
channel gain
independently.
Position 4 of the Mode Select switch should be
configured for
Component output.
Pass: All of the
information in the VBI
is passed without
processing for digital
to analog output.
line standard.
8SetupOff: The 7.5 IRE
pedestal is not inserted
into the analog video in
525 line standard.
9BurstOff: The burst is turned
off in the 525 or 625
line standards.
AChromaOff: The chrominance
is turned off in the 525
or 625 line standards.
On: The 7.5 IRE
pedestal is inserted
into the analog video in
the 525 line standard.
On: The burst is turned
on in the 525 or 625
line standards.
On: The chrominance
is turned on in the 525
or 625 line standards.
40 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
User Interface Chapter 4: USM-6800 PAL/NTSC Monitoring Encoder Module
Converting from Component YUV to Four Composite Outputs
To convert from component YUV to four composite outputs, perform
the following procedure:
An extender module is
necessary to perform this
procedure.
1.Move jumpers J5, J6 and J7 to position B.
2.Move the Mode Select switch to position 4 and toggle SW2 Up.
3.Move the Mode Select switch to position 5 and toggle SW2 Up.
4.Return the Mode Select switch to position 0.
5.Adjust the level at Output 7 to 1 Vp-p using the Gain multi-turn
potentiometer found near the handle of the USM-6800.
6.Adjust the level at Output 8 to 1 Vp-p using the R-G ain single-turn
potentiometer near J7.
Output 7 Vide o level MUST be set
before adjusting the levels at
outputs 5, 6 and 8.
7.Adjust the level at Output 6 to 1 Vp-p using the G-Gain single-turn
potentiometer near J6.
8.Adjust the level at Output t 5 to 1 Vp-p using the B-Gain single-turn
potentiometer near J5.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual41
42 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Overview
Chapter 5
VDA-6830 Video Distribution
Amplifier Module
The VDA-6830 is a high-performance, high reliability, general-purpose
analog video distribution amplifier. This module features a differential
input, eight outputs, gain adjustment with a range of -3 dB to +3 dB, and
high-frequency response adjustment on the front edge of the module.
Composite and component analog NTSC, PAL, SECAM signals (with
sync or without sync), as well as subcarrier and coaxial version AES
digital audio signals, can be amplified with the VDA-6830 in FR-680X
and FR-7001 series frames.
Specifications and designs are subject to change without notice.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual43
Chapter 5: VDA-6830 Video Distribution Amplifier ModuleSpecifications
Specifications
Input
ItemSpecification
Video Input Level1 Vp-p nominal
Output
Subcarrier Input
Level
Input Impedance75
Input Return Loss 40 dB to 10 MHz, 30 dB to 30 MHz
CouplingDC
Common Mode
Rejection Ratio
Max. Common Mode
Signal Range
1 to 2 Vp-p
W or high impedance (selectable by a jumper)
60 dB to 10 KHz
6 Vp-p
ItemSpecification
Number of Outputs8
Output Impedance75
Output Return Loss37 dB to 10 MHz
Output Isolation30 dB to 10 MHz
Response Variation0.1 dB, 1 to 8 loads to 10 MHz
W
44 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Specifications Chapter 5: VDA-6830 Video Distribution Amplifier Module
Performance
Item Specification
Gain Range-3 dB to + 3 dB
Te mp er at u re
Gain Stability0.02 dB per 10
Frequency Response< ± 0.05 dB to 10 MHz
0 to -0.5dB to 20 MHz
-3 dB bandwidth, 35 MHz typ.
Line Rate Window
Tilt
Field Rate Window
Tilt
50/60 Hz Square
Wave Tilt
Differential Gain 0.15% (10-90% APL)
Differential Phase 0.10 (10-90% APL)
S/N Ratio 65 dB to 20 MHz unweighted (0.714 V/RMS noise)
Hum1 mVp-p
Stability with 10%
Line Voltage Change
0.25%
0.25%
0.5%
0.05%
° C
Item Specification
Performance5° to 40°C
Operating0
Power Dissipation2 W
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual45
° to 50°C
Chapter 5: VDA-6830 Video Distribution Amplifier ModuleInstallation
Installation
The VDA-6830 module can be installed in a Leitch FR-680x or FR-7001
series frame, or an FR-7000MB MIX BOX frame. If this module is
installed in an FR-7001 series or FR-7000 MB MIX BOX frame, a
6800-M back module is required.
There is no need to terminate unused outputs; however, doing so will
improve response.
A jumper near the board connector provides a selection of input
impedance between 75
removed if high-input impedance is required.
W and high impedance. This jumper should be
Operational Adjustments
A multi-turn Gain potentiometer provides adjustment over a range of
The potentiometer is factory set,
and re-adjustment is not
recommended without precise
test equipment.
-3 to +3 dB. A single-turn potentiometer allows fine adjustment of the
high-frequency Response (10-30 MHz).The gain is increased when the
potentiometer is adjusted clockwise.
Both the Gain and Response controls are located on the front edge of the
module.
46 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Overview
Chapter 6
VEA-6830 Video
Distribution Amplifier Module
The VEA-6830 is a reliable, high-performance video equalizing
distribution amplifier. This module provides continuous variable
equalization for up to 1000 ft (300 m) of Belden 8281 coaxial cable. It can
also be customized to accommodate other cable types.
The VEA-6830 features differential input, eight outputs, gain adjustment
with a range of -3 dB to +3 dB, and high-frequency response adjustment
on the front edge of the board.
Composite and component analog NTSC, PAL, SECAM signals, with or
without sync, and subcarrier signals can be amplified with a VEA-6830
installed in an FR-680x series video distribution amplifier frame.
Specifications and designs are subject to change without notice.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual47
Chapter 6: VEA-6830 Video Distribution Amplifier ModuleOverview
A
The VEA-6830 can compensate for various cable types using different
equalization network sub modules installed in the main module.
Input
Differential
Amplifier
EQ
GAIN
EQ
Output
mplifier
Figure 6-1. VEA-6830 Functional Block Diagram
The following modules are available:
Leitch ProductEqualization Cable Types
VEA-6830Equalizing video distribution amplifier for 1000 ft
(300 m) Belden 8281 cable
VEA-6830-1Equalizing video distribution amplifier for 650 ft
(200 m) Belden 8241 cable
VEA-6830-2Equalizing video distribution amplifier for 800 ft
(250 m) Belden 1505A cable
Eight
Coax
Outputs
VEA-6830-3Equalizing video distribution amplifier for 1000 ft
(300 m) Belden 1694A cable
VEA-6830-4Equalizing video distribution amplifier for 650 ft
(200 m) PSF 1/3 cable
VEA-6830-5Equalizing video distribution amplifier for 800 ft
(250 m) Nokia 0.6/2.8 cable
VEA-6830-6Equalizing video distribution amplifier for 800 ft
(250 m) VPM2000 cable
486800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Specifications Chapter 6: VEA-6830 Video Distribution Amplifier Module
Specifications
Input
ItemSpecification
Video Level1 Vp-p nominal
Output
Impedance
CouplingDC
Return Loss • 50 dB to 5 MHz
Max. Common Mode
Signal Range
Common Mode
Rejection Ratio
Between
• 46 dB to 10 MHz
6 Vp-p
55 dB to 10 kH
75W
unterminated (jumper-selectable)
ItemSpecification
Number of Outputs8
Impedance75
Return Loss• 40 dB to 5 MHz
Phase Match Between
Outputs
Output Isolation40 dB at 3.58 MHz
W
• 35 dB to 10 MHz
0.25 at 3.58 MHz
Response Variation0.1 dB, 1 to 8 loads to 10 MHz
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual49
Chapter 6: VEA-6830 Video Distribution Amplifier ModuleSpecifications
Performance
ItemSpecification
Gain Range-3 dB to + 3 dB
Gain Stability0.02 dB per 10 C
Frequency Response
• 0.02 dB to 5 MHz
• 0.1 dB to 10 MHz
• 0.1 dB to 10 MHz
• +0 / -0.2 dB at 15 MHz
• -0.5 dB at 20 MHz typ.
• -3 dB at 30 MHz
Differential Gain
ItemSpecification
Differential Gain
(10-90% APL)
Differential Phase
(10-90% APL)
Line Rate Window
Tilt
Field Rate Window
Tilt
S/N Ratio (RMS
noise/0.714V)
Hum1 mVp-p
Equalization Range 0 to 1000 ft (300 m) Belden 8281, or equivalent
Response
0.10%
0.15
0.25%
0.25%
60 dB to 20 MHz unweighted
• 0.05 dB to 5 MHz
• 0.15 dB to 10 MHz
Te mp er at u re
ItemSpecification
Performance41° to 104°F (5° to 40° C)
Operating32
Power Dissipation2 W
506800/7000 Series - Distribution and Routing Products Installation and Operation Manual
° to 122°F (0° to 50° C)
Installation Chapter 6: VEA-6830 Video Distribution Amplifier Module
Installation
The VEA-6830 Video Equalizing Amplifier and VEA-6830-70 Video
Equalizing Amplifier for FR-7000 series frames (includes 6800-M rear
connector) can be installed into any of the following Leitch mounting
frames:
Leitch Mounting Frames
FR-68011RU video DA mounting frame, with four-module
capacity
FR-68042RU video DA mounting frame, with 10-module
capacity
FR-70011RU video DA modules mounting frame, with
four-module capacity
FR-7000MBMIX BOX stand alone multi-purpose chassis
FR-13021RU video DA mounting frame, with four-module
capacity
FR-26022RU video DA mounting frame, with 10-module
capacity
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual51
Chapter 6: VEA-6830 Video Distribution Amplifier ModuleOperation
Operation
A multi-turn Gain potentiometer provides adjustment over a range of
-3 to +3 dB. The gain is increased when this pot is adjusted clockwise.
Another multi-turn Equalizing potentiometer is used to adjust cable
equalization. It is adjusted clockwise to obtain more equalization.
A single-turn Response potentiometer allows fine adjustment of the
high-frequency response. However, it is factory-set/calibrated, and
readjustment
three potentiometers are located at the front edge of the module.
There is no need to terminate unused outputs; however, a perfect
response can be obtained if unused outputs are terminated.
Jumpe r J1 sets internal 75
high-impedance.
is not recommended without precise test equipment. These
W termination. If removed, it makes the input
GainEQ
Response
Figure 6-2. Front Edge View
P1
GAIN EQ
A
B
C
D
E
F
H
J
K
L
M
N
P
R
S
Figure 6-3. VEA-6830 Module Top View
526800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Overview
Chapter 7
VEA-6840 Video Equalizing
Amplifier Module
The VEA-6840 is a reliable, high-performance and full-featured
equalizing video distribution amplifier. This DA provides a
jumper-selectable input coupling mode (DC or AC coupling), and is
capable of hard and soft clamping to the composite NTSC and PAL
video signal.
The VEA-6840 is equipped with continuously variable equalization for
coaxial cable, features a differential input and eight outputs, and includes
both gain adjustment (with a range of –3.0 dB to +3.0 dB) and highfrequency response adjustment on the front edge of the board.
An optional Removable Gain and Equalization (EQ) setting submodule
can be used with the VEA-6840. This submodule can be quickly and
easily moved from one DA to another without gain and equalization
readjustment.
Specifications and designs are subject to change without notice.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual53
Chapter 7: VEA-6840 Video Equalizing Amplifier ModuleOverview
The VEA-6840 also can compensate various types of cables using
different equalization network sub modules installed in the main
module.
DC
AC
DC
AC
Input Coupling
Section
Input
Differential
Amplifie r
GAIN
Clamp Mode
EQ
EQ
CLAMP
Output
Amplifie r
Selection
No
Clamp
Soft
Hard
Figure 7-1. VEA-6840 Functional Block Diagram
Eight
Coax
Outputs
54 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Modules Chapter 7: VEA-6840 Video Equalizing Amplifier Module
Modules
The VEA-6840 video equalizing amplifier works in an FR-6800 series
frame. The following chart describes the available module types:
Leitch ProductEqualization Cable Types
VEA-6840Equalizing video distribution amplifier for 1000 ft
(300 m) Belden 8281 cable
VEA-6840-1Equalizing video distribution amplifier for 650 ft
(200 m) Belden 8241 cable
VEA-6840-2Equalizing video distribution amplifier for 800 ft
(250 m) Belden 1505A cable
VEA-6840-3Equalizing video distribution amplifier for 1000 ft
(300 m) Belden 1694A cable
VEA-6840-4Equalizing video distribution amplifier for 650 ft
200 m) PSF 1/3 cable
VEA-6840-5Equalizing video distribution amplifier for 800 ft
(250 m) Nokia 0.6/2.8 cable
VEA-6840-6Equalizing video distribution amplifier for 800 ft
(250 m) VPM2000 cable
VEA-6840-RMVEqualizing video distribution amplifier for 1000 ft
(300 m) Belden 8281 cable with Removable Gain/EQ
setting submodule
VEA-6840-RMV-1Equalizing video distribution amplifier for 650 ft
(200 m) Belden 8241 cable with Removable Gain/EQ
setting submodule
VEA-6840-RMV-2Equalizing video distribution amplifier for 800 ft
(250 m) Belden 1505A cable with Removable Gain/EQ
setting submodule
VEA-6840-RMV-3Equalizing video distribution amplifier for 1000 ft
(300 m) Belden 1694A cable with Removable Gain/EQ
setting submodule
VEA-6840-RMV-4Equalizing video distribution amplifier for 650 ft
(200 m) PSF 1/3 cable with Removable Gain/EQ
setting submodule
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual55
Chapter 7: VEA-6840 Video Equalizing Amplifier ModuleModules
Leitch ProductEqualization Cable Types
VEA-6840-RMV-5Equalizing video distribution amplifier for 800 ft
(250 m) Nokia 0.6/2.8 cable with Removable Gain/EQ
setting submodule
VEA-6840-RMV-6Equalizing video distribution amplifier for 800 ft
(250 m) VPM2000 cable with Removable Gain/EQ
setting submodule
56 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Specifications Chapter 7: VEA-6840 Video Equalizing Amplifier Module
Specifications
Input
Item Specification
Video Input Level1 Vp-p nominal
Maximum Input Level 2.5 Vp-p centered at 0 V
Output
Impedance75
CouplingDC and AC jumper selectable
Return Loss >40 dB to 20 MHz
Max. Common Mode
Signal Range
Common Mode
Rejection Ratio
W or high impedance selectable
28 Vp-p
>65 dB to 10 kHz
Item Specification
Number of Outputs8
Level1 Vp-p nominal
Impedance75
Return Loss
Output Isolation35 dB to 10 MHz
Phase Match Between
Outputs
W
•45 dB to 5 MHz
• 40 dB to 10 MHz
± 0.2°
Response Variation0.1 dB, 1 to 8 loads at 10 MHz
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual57
Chapter 7: VEA-6840 Video Equalizing Amplifier ModuleSpecifications
Performance
ItemSpecification
Gain Range± 3.0 dB
± 0.05 dB to10 MHz
Frequency Response
•
•
± 0.2 dB to 20 MHz
• –3dB at 40 MHz typ.
Equalization
Differential Gain
(10-90% APL)
Differential Phase (1090% APL)
Line Rate Window
Tilt
Field Rate Window
Tilt
S/N >70 dB measured by VM700A
Hum<1 mVp-p
Propagation Delay15
<0.15%
<0.15
<0.20%
<0.20%
± 1.0 ns
°
ItemSpecification
Range
• 0-1000 ft (0 to 300 m) Belden 8281 cable
• 0-650 ft (0 to 200 m) Belden 8241 cable
• 0-800 ft (0 to 250 m) Belden 1505A cable
• 0-1000 ft (0 to 300 m) Belden 1694A cable
• 0-650 ft (0 to 200 m) PSF 1/3 cable
• 0-800 ft (0 to 250 m) Nokia 0.6/2.8 cable
• 0-800 ft (0 to 250 m) VPM2000 cable
Response< ±0.05 to 5 MHz
< ±0.15 dB to 10 MHz
58 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Specifications Chapter 7: VEA-6840 Video Equalizing Amplifier Module
Clamp
ItemSpecification
Clamping Accuracy± 25 mV
APL Effect
Time Constant3 lines and 7 lines selectable by jumper
Te mp er at u re
ItemSpecification
Performance41° – 104°F (5° to 40°C)
Operating32° – 122°F (0
Power Requirements
ItemSpecification
Power Dissipation2 W
± 5 mV 10-90 APL
° to 50°C)
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual59
Chapter 7: VEA-6840 Video Equalizing Amplifier ModuleInstallation
Installation
The VEA-6840 module can be installed in any of the Leitch FR-6800
series video equalizing amplifier frames.
Termination of unused outputs are not required; however, a perfect
response can be obtained if unused outputs are terminated.
Removing and Installing the RMV Submodule
The VEA-6840-RMV has a Removable Gain/EQ submodule installed
that contains the R5 Gain Adjustment potentiometer and the R6 EQ Adju stment potentiometer. This submodule provides a quick
card-to-card transfer of preset Gain and EQ in the event of DA card
failure or swap-out.
The RMV submodule is removed by gently pulling straight up on the
submodule card, and then “unplugging” it from the DA card. The RMV
can be installed onto the new card by plugging it into the same position
on the card as before. There is no need to readjust the EQ or Gain because
the RMV submodule retains the adjustment from card to card.
60 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Configuration Chapter 7: VEA-6840 Video Equalizing Amplifier Module
Configuration
Input Coupling
DCAC
J2J2
J3J3
Clamp Mode
NO
CLAMP
J3J3J3
SOFTHARD
Figure 7-2. Coupling and Clamp Configuration Options
Input Coupling
• For AC coupling: Place J2 and J3 in the upper position, as illustrated
above.
Shunt positions for Clamp Mode and Input Coupling are
illustrated by the symbols
printed on the circuit board.
• For DC coupling: Place J2 and J3 in the lower position, as illustrated
above.
Clamp Mode
Clamping can be set to No Clamp, Hard, or Softclamp via Jumper J1, as
illustrated above.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual61
Chapter 7: VEA-6840 Video Equalizing Amplifier ModuleOperation
Operation
RMV
Submodule
GAIN
R5
GAIN
EQ
R6
EQ
RESPONSE
VEA-6840
R21
RESPONSE
VEA-6840
R5
Figure 7-3. VEA-6840 and VEA-6840-RMV Card-Edge Views
R6
R21
A multi-turn potentiometer Gain (R5) allows for adjustment to the gain
over a range of ±3 dB. The gain is increased when this potentiometer is
adjusted clockwise. Another multi-turn potentiometer EQ (R6) allows
for adjustment to the equalization. It is adjusted clockwise to obtain
more equalization.
A single-turn potentiometer Response (R21) allows for fine adjustment
to the high-frequency response. It is factory-set/calibrated, and
readjustment is
not recommended without precise test equipment.
These three potentiometers are located at the front edge of the module.
62 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Overview
Chapter 8
VPD-6830 Programmable
Video DA Series
The VPD-6830 Programmable Video DAs are a series of reliable, highperformance, specialized function DAs for some common DA
applications.
The VPD-6830 series of DAs provide a differential input, eight outputs, a
jumper-selectable input coupling mode for DC and AC coupling, soft
and hard clamping capability for composite NTSC and PAL video
signals, and a continuously variable equalization for various types of
coaxial cables.
The VPD-6830 series also features gain adjustment over a range of -3 dB
to +3 dB, and high-frequency response adjustment on the front-card
edge of the board.
Four video submodules are available for installation into the base DA
module (VEA-6840). Only one submodule can be installed at a time.
Specifications and designs are subject to change without notice.
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual63
Chapter 8: VPD-6830 Programmable Video DA SeriesVPD-6830 Series DAs
VPD-6830 Series DAs
Models available in the VPD-6830 series are listed in the following table:
Model NumberDescription
VPD-6830-CLPVideo Equalizing DA with Hard and Soft White
Video Clip
VPD-6830-XEQVideo Equalizing DA with extra EQ for Belden 8281
cable lengths from 0 to 3250 ft (1000 m)
VPD-6830-DEQVideo Equalizing DA with dual EQ for 1000 ft
(300 m) Belden 8281 (or equivalent) and 800 ft (250
m) Nokia 0.6/2.8
VPD-6830-DLY240Video Equalizing DA with Delay 0 to 240 ns
VPD-6830-DLY435Video Equalizing DA with Delay 200 to 435 ns
VPD-6830-DLY635Video Equalizing DA with Delay 400 to 635 ns
VPD-6830-DLY835Video Equalizing DA with Delay 600 to 835 ns
Cables
VPD-6830-DLY1035Video Equalizing DA with Delay 800 to 1035 ns
VPD-6830-DLY1235Video Equalizing DA with Delay 1000 to 1235 ns
The following table describes the cable type used:
Model NumberCable Type
VPD-6830-xxx
(CLP, etc.)-1
VPD-6830-xxx-2EQ for 800 ft (250 m) Belden 1505A cable
VPD-6830-xxx-3EQ for 1000 ft (300 m) Belden 1694A cable
VPD-6830-xxx-4EQ for 650 ft (200 m) PSF 1/3 cable
VPD-6830-xxx-5EQ for 800 ft (250 m) 0.6/2.8 cable
VPD-6830-xxx-6EQ for 800 ft (250 m) VPM2000 cable
EQ for 650 ft (200 m) Belden 8241 cable
64 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
Installation Chapter 8: VPD-6830 Programmable Video DA Series
A
Installation
The VPD-6830 series DAs may be installed into any Leitch FR-6800
series video distribution amplifier.
Termination of unused outputs is not required; however, a perfect
response can be obtained if unused outputs are terminated.
VPD-6830-CLP
The VPD-6830-CLP functions as an adjustable luminance and hard
white clip. Figure 8-1 “
its functionality.
DC
AC
Input
Differential
DC
AC
Amplifier
GAIN
EQ
EQ
VPD-6830-CLP Functional Block Diagram” outlines
Hard Clip
Luminance Clip
Through
Output
mplifier
Eight
Coax
Outputs
Input Coupling
Section
CLAMP
Clamp Mode
Selection
No
Clamp
Hard
Soft
Figure 8-1. VPD-6830-CLP Functional Block Diagram
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual65
Chapter 8: VPD-6830 Programmable Video DA SeriesInstallation
Figure 8-2. VPD-6830-CLP Video Equalizing DA with Hard and Soft White Clip.
66 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
VPD-6830-CLP Specifications Chapter 8: VPD-6830 Programmable Video DA Series
VPD-6830-CLP Specifications
Input
ItemSpecification
Video Input Level1 Vp-p nominal
Output
Maximum Video
Input Level
Impedance75
CouplingDC and AC jumper-selectable
Return Loss > 40 dB to 20 MHz
Max. Common Mode
Signal Range
Common Mode
Rejection Ratio
2.5 Vp-p centered at 0 V
W or high-impedance-selectable
28 Vp-p
> 65 dB to 10 kHz
ItemSpecification
Number of Outputs8
Level1 Vp-p nominal
Impedance75
Return Loss> 45 dB to 5 MHz
Output Isolation> 35 dB to 10 MHz
W
> 40 dB to 10 MHz
Performance
ItemSpecification
Gain Range-3 dB to + 3 dB
Line Rate Window
Tilt
Field Rate Window
Tilt
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual67
< 0.25%
< 0.25%
Chapter 8: VPD-6830 Programmable Video DA SeriesVPD-6830-CLP Specifications
ItemSpecification
S/N > 70 dB measured by VM700A
Hum< 1 mV p-p
Main EQ Range
Hard Clip Knee125 IRE
Soft Clip Knee110 IRE
Response< ±0.1 dB DC-8 MHz
Differential Gain< 0.25%
Differential Phase< 0.25°
• 0 to 1000 ft (300 m) Belden 8281 cable
• 0 to 650 ft (200 m) Belden 8241 cable
• 0 to 800 ft (250 m) Belden 1505A cable
• 0 to 1000 ft (300 m) Belden 1694A cable
• 0 to 650 ft (200 m) PSF 1/3 cable
• 0 to 800 ft (250 m) NOKIA 0.6/2.8 cable
• 0 to 800 ft (250 m) VPM2000 cable
Propagation Delay24 ± 1.0 ns
68 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
VPD-6830-CLP Specifications Chapter 8: VPD-6830 Programmable Video DA Series
Clamp
ItemSpecification
Clamping Accuracy< ± 25 mV
APL Effect< ± 5 mV 10 to 90 APL
Time Constant3 lines and 7 lines selectable
Te mp er at u re
ItemSpecification
Performance41° to 104°F (5° to 40°C)
Operating32° to 122°F (0° to 50°C)
Power Requirements
ItemSpecification
Power Dissipation< 2 W
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual69
Chapter 8: VPD-6830 Programmable Video DA SeriesVPD-6830-CLP
VPD-6830-CLP
Configuration
1.Set the input coupling for either AC or DC coupling using jumpers
J2 and J3. See Figure 8-3 on page 71 for jumper locations.
2.Set the Clamping mode on jumper J1 to either Soft, Hard or No Clamp. See Figure 8-3 on page 71 for jumper location.
3.Adjust the gain over a range of -3 dB to +3 dB using the R5
multi-turn potentiometer in the base module.
Turn the potentiometer Clockwise to Increase the gain. See
Figure 8-4 on page 71.
4.Adjust the equalization using the R6 multi-turn potentiometer in the
base module.
Turn the potentiometer clockwise to obtain more equalization. See
Figure 8-4 on page 71.
5.Make fine adjustments to the high-frequency response using the R21
Single-Turn potentiometer in the base module.
The high-frequency response is factory-set/calibrated.
Readjustment is not recommended without precise test equipment.
See Figure 8-4 on page 71.
6.Adjust the Hard clip level using the R4 multi-turn potentiometer
located on the VPD-6830-CLP submodule. See Figure 8-3
VPD-6830-CLP Configuration” on page 71.
“
7.Adjust the Luminance clip using the R13 multi-turn potentiometer
located on the card edge of the submodule card. See Figure 8-4
VPD-6830-CLP Card-Edge View” on page 71.
“
70 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
VPD-6830-CLP Chapter 8: VPD-6830 Programmable Video DA Series
Figure 8-3. VPD-6830-CLP Configuration
Figure 8-4. VPD-6830-CLP Card-Edge View
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual71
Chapter 8: VPD-6830 Programmable Video DA SeriesVPD-6830-XEQ
A
A
A
VPD-6830-XEQ
The VPD-6830-XEQ is used to compensate extremely long running
cable, up to 3250 ft (1000 m) of Belden 8281. The following diagram
describes its functionality:
DC
AC
75
DC
AC
Input Coupling
Section
Input
Differenti al
Amplifier
GAIN
Clamp Mode
Selection
Clamp
EQ
1
EQ
EQ
CLAMP
No
Hard
Soft
MP
1
EQ
2
MP
2
Figure 8-5. VPD-6830-XEQ Functional Block Diagram
Output
mplifier
Eight
Coax
Outputs
Figure 8-6. VPD-6830-XEQ
72 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual
VPD-6830-XEQ Specifications Chapter 8: VPD-6830 Programmable Video DA Series
VPD-6830-XEQ Specifications
Input
ItemSpecification
Video Input Level1 Vp-p nominal
Output
Maximum Video
Input Level
Impedance75
CouplingDC and AC jumper-selectable
Return Loss > 40 dB to 20 MHz
Max. Common Mode
Signal Range
Common Mode
Rejection Ratio
2.5 Vp-p centered at 0 V
W or high impedance-selectable
28 Vp-p
> 65 dB to 10 kHz
ItemSpecification
Number of Outputs8
Level1 Vp-p nominal
Impedance75
Return Loss
Output Isolation> 35 dB to 10 MHz
W
• > 45 dB to 5 MHz
• > 40 dB to 10 MHz
Performance
ItemSpecification
Gain Range-3 dB to + 3 dB
Line Rate Window
Tilt
Field Rate Window
Tilt
6800/7000 Series - Distribution and Routing Products Installation and Operation Manual73
< 0.25%
< 0.25%
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