Grass Valley 8920DMX User Manual

8920DMX

Video/Audio Demultiplexer Module

Instruction Manual

SOFTWARE VERSION 2.0.2

071803802
APRIL 2003

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Nevada City, CA 95959­7900 USA

www.thomsongrassvalley.com

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2 8920DMX Instruction Manual

Contents

Preface

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Frame Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Module Placement in the 8900 Frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Operation Indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Configuration Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Onboard Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Remote Control Lockout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Audio Output Impedance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Local Onboard Configuration Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Remote Configuration and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Module Links and Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Signal Configuration Displays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Status Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Frame Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Web Browser Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

SNMP Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Video Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Input Equalizing Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Clock Regenerator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Serial to Parallel Converter and EDH/EDA Error Processor . . . . . . . . . . . . . . . 27

27Mhz PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Field Programmable Gate Array (FPGA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Demultiplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Parallel to Serial Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

CPU Embedded Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Index

8920DMX Instruction Manual 3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Contents

4 8920DMX Instruction Manual

Preface

About This Manual

This manual describes the features of a specific module in 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

Instruction Manual

).

Gecko 8900 Series Frames

8920DMX Instruction Manual 5

Preface

6 8920DMX Instruction Manual

8920DMX Video Audio Demultiplexer

Introduction

The 8920DMX is a Serial Digital (SD) Video/AES3 demultiplexer that
extracts 20- or 24-bit AES/EBU audio streams from the ancillary data space
of component 525 or 625 digital video. The demultiplexer identifies four
audio groups in the ancillary data stream by a unique identification (ID).
Each audio group (G1, G2, G3, or G4) can contain up to two AES/EBU
audio streams of two channels each (four channels total). The 8920DMX
can extract any one of these four groups.

The 8920DMX-110 module includes a BNC to terminal block adapter for
accessing balanced 110

The 8920DUX module:

•Can be installed in any Gecko 8900TX-V, TF-V or TFN-V video frame
(cannot be installed in a TX-A/TF-A or TFN-A audio frame),

• Is a hot-swappable module (can be removed and replaced in the frame
with power on),

• Stores settings in non-volatile memory (if the power to the module is
cycled, the module will maintain its settings),

•Outputs up to 2 stereo, AES/EBU audio digital streams,

•Handles synchronous 48K AES/EBU streams with selection of internal
or external CRC/UVC generator, and

• Is able to pass or delete the audio group after extraction.

Ω

audio outputs.

8920DMX Instruction Manual 7

Installation

Installation

Frame Capacity

1.

2.

Installation of the 8920DMX module is a process of:

The 8920DMX module can be plugged in and removed from an 8900 Series
video frame with power on. When power is applied to the module, LED
indicators reflect the initialization process (see

The 8920DMX module can be installed in all 8900 Series 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. Power, Cooling, and Module Capacity of 8900 Frames

Capacity Calculated 8900TX-V Frame 8900TF-V Frame 8900TFN-V Frame

Power (W) 100 100 100
Recommended Module Cooling (W) 30 90 90
8920DMX Modules 6 10 10

Note

Module capacity figures assume no other modules are in the frame.

Module Placement in the 8900 Frame

There are ten slot locations in the 8900 Series video frame to accommodate
either analog or digital video modules. These are the left ten locations.
Refer to Figure 1 on page 9.

The two slots on the right are allocated for the power supplies. For addi­tional information concerning the Power Supply module, refer to the

8900 Series Frames Instruction Manual.

The third slot from the right is allocated for the Frame Monitor or 8900NET
Network Interface module. These modules provide health monitoring and
control options.

Gecko

8 8920DMX Instruction Manual

1.

2.

3.

Figure 1. 8900 Series Frame

Installation

8038-04r1

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 Monitor or

(only)

8900NET Network

Interface Module

8900 modules are interchangeable within the module slots. 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 an 8900 video frame can
accept is ten. Figure 2 illustrates the rear connector plate for an 8900 Series
video frame.

Figure 2. 8900 Series 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

8038-03

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 the ejector tab in to seat the module in place.

Note

At the back of this manual are overlay cards that can be placed over the rear
connector BNCs to identify the specific 8920DMX connector functions.

8920DMX Instruction Manual 9