Grass Valley 8981NR User Manual
8981NR
270 MB/S SDI NOISE REDUCER MODULE
Instruction Manual
SOFTWARE VERSION 1.0
071822600
AUGUST 2003
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Copyright © Thomson Broadcast and Media Solutions All rights reserved.
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Sales: (530) 478-3347
Support: (530) 478-3181
+852-2802-2996
Grass Valley
P.O. Box 599000
Nevada City, CA 959597900 USA
www.thomsongrassvalley.com
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2 8981NR Instruction Manual
Contents
Preface
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
8981NR 270 Mb/s SDI Noise Reducer
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Frame Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Module Placement in the Gecko 8900 Video Frame. . . . . . . . . . . . . . . . . . . . . . . . 8
Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Operation Indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Configuration Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Noise Filter Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Proc Amp Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Vertical Ancillary Line Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Recall or Save Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Local Onboard Module Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Configuration Switches and Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8981NR Module Onboard Configuration Settings . . . . . . . . . . . . . . . . . . . . . . 18
Remote Configuration and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8981NR Links and Web Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Status Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Noise Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Proc Amp Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Vertical Ancillary Lines Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Recall or Save Settings Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Slot Config Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Software Update Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Control Panel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Status Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Frame Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Web Browser Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
SNMP Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Index
8981NR Instruction Manual 3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Contents
4 8981NR Instruction Manual
Preface
About This Manual
This manual describes the features of a specific module of the Gecko 8900
Signal Processing System. As part of this module family, it is subject to
Safety and Regulatory Compliance described in the Gecko 8900 Series
frame and power supply documentation (see the
Frames Instruction Manual
).
8900TX/8900TF/8900TFN
8981NR Instruction Manual 5
Preface
6 8981NR Instruction Manual
8981NR 270 Mb/s SDI Noise Reducer
Introduction
The 8981NR module is a 270 Mb/s SDI component digital noise reducer
module. The module incorporates two different noise reduction methods,
targeted at different sources of noise. A recursive filter is effective for low
levels of wide-band (random) variations that have no frame-to-frame correlation and a horizontal median filter is very effective for impulse noise.
Typical applications include reduction of random noise generated during
analog transmission or digital processing. Signals from various sources
with varying amounts of noise resulting from poor transmission and processing will benefit by the reduction of bandwidth required later during the
MPEG compression process.
The 8981NR features:
• 10-bit signal processing,
•Automatic 525/625 line standard selection based on input,
•Recursion filter for random noise reduction,
•Horizontal median filter for impulse noise reduction,
• Split screen mode with internal noise generator for setup purposes,
•Video processing adjustments including video gain and black level,
• Setting storage in non-volatile memory,
•Output EDH generated,
•VANC pass or blank selection,
• Set blanking width (line 20 or line 21) in 525 mode,
• Passes all HANC data, and
•Remote control lockout jumper disables remote control capability.
8981NR Instruction Manual 7
Installation
Installation
Frame Capacity
1.
2.
Installation of the 8981NR module is a process of:
The 8981NR module can be plugged in and removed from a Gecko 8900
video frame with power on. When power is applied to the module, LED
indicators reflect the initialization process (see
The 8981NR module can be installed in all Gecko 8900 video frames but
with varying maximum quantities determined by frame cooling capacity.
Table 1 provides the power capacity, cooling capacity, and maximum
module count for each frame type.
Placing the module in the proper video frame slot, and
Cabling and terminating signal ports.
Power Up
on page 11).
Table 1. Video Frame Power Capacity
Capacity Calculated 8900TX Frame 8900TF Frame 8900TFN Frame
Power (W) 100 100 100
Recommended Module Cooling (W) 30 90 90
8981NR Modules 5 10 10
Note
Module capacity figures assume no other modules are in the frame.
X = Not recommended without forced air cooling.
Module Placement in the Gecko 8900 Video Frame
There are ten cell locations in the video frame to accommodate either
analog or digital modules. These are the left ten locations. Refer to Figure 1
on page 9.
The two cells on the right are allocated for the power supplies. For additional information concerning the Power Supply module, refer to the 8900
Power Supply manual.
The third cell from the right is allocated for the Frame Monitor or 8900NET
Network Interface module. These modules provide health monitoring and
control options.
8 8981NR Instruction Manual
1.
2.
3.
Figure 1. Gecko 8900 Series Frame
Installation
8226_04r0
DA10
J1 J2
O
J3 J4
U
T
J5 J6
J7 J8
J9 J10
IN
DA9
J1 J2
J2
O
J3 J4
J4
U
T
J5 J6
J6
J7 J8
J8
J9 J10
IN
Any 8900 Module
Power
Supplies
Frame Controller or
(only)
8900NET Network
Interface Module
8900 module slots are interchangeable within the frame. There are 10 BNC
connectors in each slot’s I/O group. The functional assignment of each connector in a group is determined by the module that is placed in that slot.
The maximum number of modules a Gecko 8900 frame can accept is ten.
Figure 2 illustrates the rear connector plate for a Gecko 8900 frame.
Figure 2. Gecko 8900 Series Video Frame Rear Connector
DA8
J1 J2
O
J3 J4
U
T
J5 J6
J7 J8
J9 J10
IN
DA7
J1 J2
J2
O
J3 J4
J4
U
T
J5 J6
J6
J7 J8
J8
J9 J10
IN
DA6
J1 J2
O
J3 J4
U
T
J5 J6
J7 J8
J9 J10
IN
DA5
J1 J2
J2
O
J3 J4
J4
U
T
J5 J6
J6
J7 J8
J8
J9 J10
IN
DA4
J1 J2
O
J3 J4
U
T
J5 J6
J7 J8
J9 J10
IN
DA3
J2
J1 J2
O
J4
J3 J4
U
T
J6
J5 J6
J8
J7 J8
J9 J10
IN
DA2
J1 J2
O
J3 J4
U
T
J5 J6
J7 J8
J9 J10
IN
DA1
J1 J2
O
J3 J4
U
T
J5 J6
J7 J8
J9 J10
IN
8226_03
To install a module in the frame:
Insert the module, connector end first, with the component side of the
module facing to the right and the ejector tab to the top.
Verify that the module connector seats properly against the backplane.
Press in the ejector tab to seat the module.
8981NR Instruction Manual 9
Installation
Cabling
Cabling to and from the module is done at the back of the Gecko 8900
frame.
Inputs
Outputs
Note
At the back of every hard cover manual are overlay cards that can be placed
over the rear connector BNCs to identify the specific 8981NR connector functions.
One SDI input is provided at BNC J7. Line rate is indicated by 525 or 625
Present LED (Figure 4 on page 11).
Four serial digital video outputs are provided at BNCs J1, J2, J3, and J4 as
shown in Figure 3.
Figure 3. 8981NR Input/Output Connectors
X
Video Out 1
Video Out 2
J1
J3
J2
J4
J2
J4
Video Out 3
Video Out 4
Not Used
Video In
Not Used
J5
J7
J9 J10
J6
J8
J6
J8
Not Used
Not Used
Not Used
8226_02
10 8981NR Instruction Manual
Power Up
Operation Indicator LEDs
Power Up
The front LED indicators and configuration switches are illustrated in
Figure 4. Upon power-up, the green PWR LED should light and the yellow
CONF LED should illuminate for a few seconds for the duration of module
initialization.
With factory default configuration and a valid input signal connected, the
green PWR LED and one of the green signal standard LEDs (525 or 625)
should illuminate (refer to Table 2 on page 12 to see the possible operating
indicator combinations).
Figure 4. LEDs and Configuration Switches
525 625
PRESENT
INPUT
FUNCTION
2ND
UP
DOWN
DELAY
FAULT
COMM CONF PWR
2ND LED
FAULT – Red LED is off during normal operation.
COMM – Yellow LED on indicates frame bus traffic.
CONF – Yellow LED on indicates module is initiating,
changing operating mode, or updating firmware.
PWR – Green LED on indicates power OK.
525 – Green LED on indicates 525 input present.
625 – Green LED on indicates 625 input present.
Module Configuration Switches and LEDs.
8226_05
8981NR Instruction Manual 11
Power Up
Table 2. Board Edge LED Names and Meaning
LED Indication Condition
Off Normal operation.
FAULT
(red)
COMM
(yellow)
CONF
(yellow)
PWR
(green)
525
(green)
625
(green)
2ND
(yellow)
DELAY
(green)
On continuously Module has detected an internal fault. (Refer to Service on page 35.)
Flashing Configuration problems. Check inputs and settings. Missing video.
Off No activity on frame communication bus.
3 Quick Pulses Locate Module command received by the module from a remote control system.
Short flash Activity present on the frame communication bus.
Off Module is in normal operating mode.
On continuously Module is initializing, changing operating modes or updating firmware.
3 Quick Pulses Locate Module command received by the module from a remote control system.
Off No power to module or module’s DC/DC converter failed.
On continuously Normal operation, module is powered.
Off Input signal standard is other than 525.
On continuously Valid 525 video signal is present
Off Input signal standard is other than 625.
On continuously Valid 625 video signal is present
Off Rotary switch is addressing Bank 1 configuration functions
On continuously Rotary switch is addressing Bank 2 configuration functions
Off
On continuously
Not Used
12 8981NR Instruction Manual
Configuration
The 8981NR can be configured locally using onboard switches or remotely
using the 8900NET network interface GUI or a networked control panel.
Refer to the following sections for configuration instructions:
•Configuration Summary (page 13)
• Local Onboard Module Configuration (page 17)
•Remote Control and Monitoring (page 20)
•Control Panel Configuration (page 33)
Operation of these control types is explained in detail in their respective
sections of this manual.
Configuration
Configuration Summary
This section provides a summary of all parameters that can be configured
on the 8981NR module. Table 3 on page 16 provides a summary in table
format of all parameters and their ranges, default values, and remote, local,
and control panel function names and locations for setting each value.
Noise Filter Controls
Noise controls for two different noise reduction methods—recursive and
median— targeted at different sources of noise, are provided on the
module.
Recursive Filter
Recursive filtering is effective for low levels of wide-band (random) noise
that have no frame-to-frame correlation. In this method of filtering, the
input video data is mixed with a portion of the recursive filter output that
is delayed by exactly one frame only if its value is with an adjustable noise
threshold level of that output. The portion amount is set by the recursion
coefficient from none to 100% (an output freeze).
When recursive filtering is enabled, two controls become available:
•Noise Threshold Level – adjustment should be made just slightly
higher than the peak noise level.
•Noise Coefficient – adjustment should be made for minimum acceptable noise suppression.
Both of these adjustments should be set as low as acceptable to minimize
motion blurring artifacts.
8981NR Instruction Manual 13
Configuration
Median Filter
This filtering method acts to replace individual pixels with one of its neighboring pixels in the horizontal direction if it is not with the value range of
the nearest neighboring pixels. This type of filtering is very effective for
single pixel impulse noise where there is no horizontal (line) picture correlation.
The median filter is enabled with an On/Off control. This type of filter has
a larger peak level than the random noise so it occurs before the recursive
filter.
If no impulse noise is present in the signal, it is recommended to leave the
median filter in the Off position, as high frequency horizontal resolution
(sharpness) is reduced with its use.
Other Noise Filter Controls
The following controls are also included with the noise filtering to aid in
making noise adjustments:
Display Bar – when enabled, a sliding horizontal white bar will indicate the
relative value for noise threshold (top) and recursive coefficient (bottom)
on a black background, indicating the full-scale position.
Split Screen – when enabled, allows the output to be split for comparing the
unprocessed video data on the right to the processed video on the left.
Random Noise Generator – when enabled, pseudo-random, wide-band
noise with no average DC value at a peak level of about 8 IRE will be added
to the input. This level is at a practical limit for using recursive filtering and
can be used for experimenting with the noise threshold and recursion coefficient controls. Most actual noise sources will be lower than with this generator and will require lower settings.
Impulse Noise Generator – when enabled, and the random noise generator
is also enabled, positive, single pixel impulse of about 50 IRE are added to
the noise generator output. This control is useful for testing the median
filter.
Note
When the module is powered down, upon restart the Display Bar, Split
Screen, Random Noise Generator, and Impulse Noise Generator will be disabled and must be re-enabled using the local or remote controls.
14 8981NR Instruction Manual
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