Moseley DSP6000A User manual
www.SteamPoweredRadio.Com
FCC Notice
Note: This equipment has been tested and found to comply with the limits
for
a Class A digital device, pursuant to part 15
of
the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and,
if
not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications. Operation
of
this equipment in a residential area is likely
to cause harmful interference in which case the user will be required
to
correct the interference at his own expense.
Any external data
or
audio connection
to
this equipment
must
use
shielded cables.
DSP6000A User Manual
Document #602-11157-
01
R: A
Revision Configuration:
SECTION DWG REV ECO REVISED/
RELEASED
Table
of
Contents 602-11157-TOC A DCO1049 August 1997
1 602-1
11
57-11 A DCO1049 August 1997
2 602-11157-21 A DCO1049 August 1997
3 602-11157-31 A DCO1049 August 1997
4 602-11 157-41 A DCO1049 August 1997
5 602-11157-51 A DCO1049
August1997
6 602-11157-61 A DCO1049 August 1997
7 602-11157-71 A DCO1049 August 1997
Appendix 602-11157-AA1 A DCO1049
August1997
•
•
•
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Table
of
Contents
Section Contents
Table
of
Contents
List
of
Figures
List
of
Tables
Glossary
About this Manual
1
System Characteristics
1.1
Introduction
1.2 System Features
1.3 DSP6000A System
1.3.1 DSP6000A System Specifications
1.3.2 DSP6000E Encoder Specifications
1.3.3 DSP6000D Decoder Specifications
1.4 System Description
1.4
.1
DSP6000E Encoder Description
1.4.2 DSP6000D Decoder Description
2 Installation
2.1 Unpacking
2.2 Power
2.2.1 AC Line Voltage Selection
2.2.2 DC Option Fuses
2.3 Pre-Installation Checkout
2.
3.1
Checkout of Encoder/Decoder Only
2.3.2 Checkout ofSystem -Encoder/STUDecoder
2.4 Rack Installation
2.5 STL Installation
2.5.1 Encoder
2.5.2 Decoder
2.
5.3
Air-Chain Processing
2.5.4 Repeater
2.6 Fractional
T1
(FT1) Installation
2.7 Data Communications
2.7.1 Data Rate and Format Selection
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V
vii
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1-3
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1-6
1-7
1-7
1-11
2-2
2-2
2-2
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Table
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ii
Section Contents
2.7.2 Remote Control Communication
2.7.2.1 Subcarrier Communications
2.7.2.2 FSK Communications
2.7.2.3 RS-232 Communications
2.8 Retrofit STL Installation
2.8.1 PCL601OTransmitter
2.8.2 PCL6020/6030/6060 Receiver
2.8.3 PCL606 Transmitter, Mono
2.8.4 PCL606 Receiver, Mono
2.8.5 PCL606/C Transmitter, Composite
2.8.6 PCL606/C Receiver, Composite
2.8.7 PCL505 Transmitter, Composite
2.8.8 PCL505 Receiver, Composite
2.8.9 Other Radios
2.8.10 Retrofit Repeater Installation with STL
3 Operation
3.1
Encoder Front Panel
3.2 Encoder Back Panel
3.3 Encoder Pin Assignments
3.4 Decoder Front Panel
3.5 DecoderBack Panel
3.6 DecoderPin Assignments
4 Customer Service Information
4.1
Introduction
4.2 Technical Consultation
4.3 Factory Service
4.4 Field Repair
5 Configuration
5.1
Introduction
5.2 Encoder Channel Configuration
5.3
EncoderAlignment
5.4 Encoder Interface Configuration
5.4.1 Interface Mode O- PROGRAM,
FT1
SEND
5.4.2 Interface Mode 1 - REPEATER
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2-43
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2-45
2-46
3-2
3-3
3-4
3-6
3-7
3-8
4-2
4-2
4-3
4-4
5-2
5-3
5-5
5-9
5-10
5-11
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Section Contents
5.4.3 Interface Mode 2 - AES/EBU,
FT1
SEND
5.4.4 Interface Mode
3-
PCM
5.4.5 Interface Mode4 - PROGRAM, FT1
RECEIVE
5.4.6 Interface Mode 5 -
AES
/
EBU
,
FT1
RECEIVE
5.5 DecoderChannel Configuration
5.6 DecoderAlignment
5.6.1
De
coderAlignment -Standard Efficiency
5.6.2 DecoderAlignment -High Efficiency with Pilot
5.6.3 DecoderAlignment -Standard Efficiency with Pilot
5.6.4 DecoderAlignment -FT1
5.7 Decoder Interface Configuration
5.7.1 Interface Mode O- PROGRAM
5.7.2 Interface Mode 1 - REPEATER
5.7.3 Interface Mode2 - AES/EBU
5.7.4 Interface Mode
3-
PCM
5.7
.5 STL Interface Mode
5.
7.6
FT1 Interface Mode
5.8 Changing Transmission Efficiency
5.9 Data Channel Configuration
5.9
.1
DATA
1 (RS-232)
5.9.1
DATA
2 (RS-232)
5.10
BER
Threshold Selection
5.11 AutomaticAudio Mute
5.12 Scrambler Disable
5.13 Configuration Programming
Summary
Tables
6 Troubleshooting and Testing
6.1
Audio Measurements
6.1.1 Signal-to-Noise Ratio
6.1
.2
Distortion/SINAD
6.2
Troubleshooting
6.2.1 Encoder STATUS
Output
6.2
.2 Decoder STATUS
Output
6.3
Board Alignment Information
6.3
.1 Encoder
6.3.1.1 Encoder 1/0 Power Supply Board
6.3.1.2 Encoder Main ProcessorBoard
6.3.1.3 Encoder Display Board
6.3.2 Decoder
6.3
.
2.1
Decoder 1/0 Power Supply Board
6.3.2.2 Decoder Main Processor
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Page
5-12
5-13
5-14
5-15
5-16
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5-21
5-23
5-25
5-27
5-27
5-28
5-29
5-30
5-31
5-32
5-3
2
5-33
5-33
5-35
5-37
5-38
5-39
5-39
5-40
6-2
6-2
6-4
6-4
6-5
6-7
6-9
6-9
6-9
6-12
6-15
6-16
6-16
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Table
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Section Contents
6.3.2.3 Decoder Display Board
6.4
Test Equipment
6.5
Test Fixture Diagrams
7 Schematic and Assembly Drawings
Appendix
A.1
Path Evaluation Information
A.2 Spectral Efficiency
A.3 AES/EBU Digital Audio Data Format
A.3.1 AES/EBU Standard
A.3.2 DSP6000AAES/EBU Output
Page
6-24
6-26
6-27
A-2
A-2
A-5
A-5
A-7
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Table
of
Contents
v
List
of
Figures
Figure Title
1-1
DSP6000A Digital Studio-TransmitterLink (DSTL) System
1-2 DSP6000A Encoder Block and Level Diagram (92A1336 R: A)
1-3 DSP6000A Decoder Block and Level Diagram (92A1335 R: 1)
2-1
Transformer AC Wiring detail
2-2 Bench Test Setup for Encoder/Decoder Only
2-3 Bench Test Setup For Digital STL System
2-4 Encoder-to-STL Transmitter Interconnect
2-5 Decoder-to-STL Receiver Interconnect
2-6 Air-Chain Processing with the Digital STL
2-7 Digital Repeater Interconnection
2-8 Repeater Cable Detail
2-9 Fractional
T1
Network
2-10a DSP6000A
to
CSU (RS-449) Interconnection Cable
2-10b DSP6000A
to
CSU (EIA-530) Interconnection Cable
2-11 DSP6000Ato MRC1600/1620 Data Connections
2-12 ACIA Replacement Cable
2-13 DSP6000Ato MRC-1/2/2S Data Connections
2-14 DSP6000Ato MultiTech MT202TD Data Connections
2-15 Modification
of
Older PCL6020/6030 Audio/PS
for
Digital STL
Operation
2-16 Encoder-to-PCL606 Interconnection
2-17 Decoder-to-PCL606 Mono Receiver Interconnection
2-18 Encoder-to-PCL606/C Interconnection
2-
19
Decoder-to-PCL606 Receiver Composite Interconnection
2-20 Encoder-to-PCLS0S Composite Interconnection
2-21 Decoder-to-PCL505 Receiver Composite Interconnection
3-1 EncoderFrontPanel
3-2 Encoder Back Panel ·
3-3 STATUS Output (TTL
),
DB-15 F
3-4 INTERFACE
1/0
(RS-422A), DB-15 F
3-5
XLR
Sockets, IEC 268-14, Female
3-6 BNC Sockets, Female
3-7
DATA
1 Inp
ut
(RS-232), DB-9 F
3-8
DAT
A2.
Inp
ut
(RS-232), DB-9 F
3-9 Decoder Front Panel
3-10 Decoder Back Panel
3-11 STATUS Output (TTL), DB-15 F
3-12 INTERFACE
1/0
(RS-422A),
08-15
F
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Table
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Figure Title
3-13
XLR
Plugs, IEC268-14, Male
3-14 BNC Sockets, Female
3-15
DAT
A1 Output (RS-232), DB-9 F
3-16 DATA2 Output (RS-232), DB-9 F
5-1
DIP Switch Setting Definitions
5-2 EncoderOutput Waveform ("Eye Pattern")
5-3 PROGRAM Input Operation Interface Mode O
5-4 REPEATER Input Operation Interface Mode 1
5-5 AES/EBU Input Operation Interface Mode 2
5-6 PCM Input Operation Interface Mode 3
5-7 PROGRAM Input Operation with External Timing
Interface Mode 4
5-8 AES/EBU Input Operation with External Timing
Interface Mode 5
5-9 TestSetup for DecoderAlignment (STL Applications)
5-10 Clock Recovery Waveforms at TP10 and TP11
5-11 AID CLOCK Alignment TP6 with
AID
InputTP4,
Standard Efficiency
5-12 AID CLOCK Alignment TP6 with AID Input TP4,
High Efficiency with Pilot
5-13
AID
CL
OCK
Alignment TP6 with
AID
InputTP4,
Standard Efficiency with Pilot
5-14 PROGRAM OutputOperation Interface Mode 0
5-15 REPEATER OutputOperation Interface Mode 1
5-16 AES/EBU Output Operation Interface Mode 2
5-17 PCM Output Operation Interface Mode 3
5-18
FT1
DecoderOperation
6-1 Signal-to-Noise Ratio Equipment
Set
-
up
6-2
Status Test Fixtures
6-3 RS-232 Test Fixtures
See Table
of
Contents
for
Section 7 Figures
A-
1 DSP6000A Occupied Spectrum
A-2 AES/EBU Standard Frame
A-3 AES/EBU Standard Subframe
A-4 AES/EBU Standard Coding
A-5 AES/EBU Standard Sync Preamble
Page
3-9
3-9
3-9
3-9
5-2
5-7
5-10
5-11
5-12
5-13
5-14
5-15
5-20
5-22
5-22
5-24
5-26
5-28
5-29
5-30
5-31
5-32
6-3
6-
27
6-27
A-4
A-5
A-5
A-6
A-6
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Table
of
Contents vii
List
of
Tables
Table Title
2-1
Encoderand DecoderAC Fuse Values
2-2 Encoderand Decoder DC Fuse Values
2-3 Channel Programming
2-4 Setting EncoderTiming
2-5
Setting DecoderTiming
2-6 CSU Timing Programming
2-7
DATA 1 Format
2-8
DAT
A 2 Format
2-9 RS-232 Communications
for
MRC Systems
2-10
Remote Terminal (RT) MRC1600/1620 RS-232 Input
2-11 Control Terminal (CT) MRC1600/1620 RS-232 Output
2-12 MRC-1/2/2S (Remote Terminal) RS-232 Input, TEL
CO
(Subcarrier) Output
2-13
MRC-1/2/
2S
(Control Terminal) RS-232 Output,
TELCO
(Subcarrier) Input
2-14
MT202TD Settings
2-15 PCL6010 Audio/
PS
Settings
2-16 PCL6020/6030 Audio/PS Settings
2-17 MUX Channel Usage with DSP6000A Standard Efficiency
Operation
2-18 MUX Channel Usage with DSP6000A High Efficiency Operation
2-19
IF Filter Configuration
2-20 Mono Audio Processor Configuration
2-21
Mono Baseband Processor Configuration
2-22
Double Converter Configuration
2-23 FM Radio Specifications for DSP6000ACompatibility
5-1
Encoder Channel Configuration
5-2 Encoder Channel Components
5-3 Setting EncoderTransmission Efficiency
5-4
Encoder HDR1 Selection
5-5 EncoderOutput Level to PCL601
O
and TransmitterDeviation
5-6 EncoderOutput Level Conversion for other Transmitters
5-7 Encoder Interface Modes
5-8 Decoder Channel Configuration
5-9 DecoderChannel Components
5-10 Setting DecoderTransmission Efficiency
5-11
Decoder HDR1 Selection
5-12
Decoder HDR2 Selection
5-
13
Decoder Input Level -Standard Efficiency
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5-4
5-5
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5-8
5-9
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Table
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Contents
viii
Table
Title
5-14 Decoder Input Level -High
Eff
iciency
5-15 Decoder Interface Modes
5-16 Data Channel Baud Rate
5-17 Data Channel Configuration
5-18 Data Channel Test Modes
5-19 Data Channel 1 Baud
Se
lection
5-20 Data 1 Format Selection
5-21 Data Channel 2 Baud Selection
5-22 Data 2 Format Selection
5-23 DecoderBER Configuration
5-24 Setting DecoderAutomatic Audio Mute
5-25 Scrambler Mode Selection
5-26 DSP6000E Encoder DIP Switch Configuration Settings
5-27 DSP6000D Decoder
DIP
Switch Configuration Settings
6-1
EncoderSTATUS Pin Descriptions
6-2 EncoderSTATUS Output Validity
6-3
Decoder
ST
ATUS Pin Descriptions
6-4
Decoder STATUS Output Validity
6-5
PowerSupply Section
6-6
Main Audio Section
6-7
Aux Audio Section
6-8 External Sync Section
6-9
Channel Encoder Section
6-
10 Timing and Mode Control
6-11 Main Encoder Section
6-12
Aux
EncoderSection
6-13 Main/Aux/Data Multiplexer
6-14 Asynchronous Data
6-15 EncoderDisplay
6-16 PowerSupply Section
6-17 Main Audio Section
6-
18
Aux Audio Section
6-19 AGC Section
6-20 Clock Recovery Section
6-21 Timing and Mode Control Section
6-22 Channel Decoder Section
6-23 Main Decoder Section
6-24 Aux Decoder Section
6-25 Main/Aux/Data Multiplexer
6-26 Asynchronous Data
6-27 Spares
6-
28
Decoder Display Board
6-29 Recommended Test Equipment
A-1 DSP6000A Threshold Versus Transmission Rate
A-2
Spectral Efficiency Modes
Page
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6-6
6-7
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6-9
6-10
6-11
6-12
6-13
6-13
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6-14
6-14
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6-16
6-17
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Table
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Contents x
ND
ADPCM
AES/EBU
AGC
BER
DTE
CMRR
Codec
CPFSK
CSU
DCE
DSTL
DTE
DIA
dB
dBm
dBu
DSP
DSTL
DVM
EMI
FMO
FPGA
FSK
FT1
IEC
IF
IMO
kbps
kHz
LED
LSB
Mbps
Modem
ms
MSB
µs
GLOSSARY
Analog-to-Digital
Adaptive Differential Pulse Code Modulation
Audio Engineering Society/European BroadcastUnion
Auto Gain Control
Bit Error Rate
Data Terminal Equipment
Common Mode Rejection Ratio
Coder-Decoder
Continuous-Phase Frequency Shift Keying
Channel Service Unit
Data Circuit-Terminating Equipment
Digital Studio-TransmitterLink
Data Terminal Equipment
Digital-to-Analog
Decibel
Decibel relative to 1
mW
Dec
ibel relative to .775 Vrms
Digital Signal Processing
Digital Studio-TransmitterLink
Digital Voltmeter
Electromagnetic Interference
Frequency Modulation Oscillator
Field Programmable GateArray
Frequency Shift Keying
Fractional
T1
International Electrotechnical Commission
Intermediate Frequency
Intermodulation Distortion
Kilobits
per
second
Kilohertz
Light Emitting Diode
Least significant bit
Megabits persecond
Modulator-demodul
ator
Millisecond
Most significant bit
Microsecond
DSP6000A
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µV
MUX
PCB
PCM
PGM
PLL
R
RF
RPTR
SCA
SINAD
SNR
STL
TOM
THO
TP
Vp
Vp-p
Vrms
Z
IN
ZOUT
Microvolt
Multiplex
Printed Circuit Board
Pulse Code Modulation
Program
Phase-Locked Loop
Transmission Rate
Radio Frequency
Repeater
Subsidiary Communications Authorization
Signal
to
Noise and Distortion
Signal-to-Noise Ratio
Studio-Transmitter Link
Time Division·Multiplexing
Total Harmonic Distortion
Test Point
Volts peak
Volts peak-to-peak
Volts root mean square
Input Impedance
Output Impedance
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Table
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About
This Manual
This manual is a comprehensive operation guide
to
the DSP6000A Digital Studio-
Transmitter Link with information for
new
installations, retrofit insta
ll
at
ions, configuration,
alignment, and general troubleshooting in the field.
If you are unfamiliar with the basic
use
of
the DSP6000A, read Sections 1 through 3
before installing any equipment. Sections 4 through the appendix will aid those
in
need
of
more detailed information on the operation
of
this system.
Section
1,
System Characteristics, is a brief overview
of
the DSP6000A. It includes
encoderand decoder specifications, features, and system descriptions.
Section
2,
Installation, covers unpacking, installation, and checkout procedures. It also
describes retrofit modifications
for
STL's and remote control
s.
Section
3,
Operation, discusses the controls, adjustments, and 1/0 operations
for
the
DSP6000A system that the userwill encounter in normal operation and initial setup.
Section
4,
Customer Service, tells how
to
get technical assistance
or
return equipment
forfactory service, and provides some field repair basics.
Section
5,
Configuration, presents programming information
for
the various
configurations of the system. Alignment information is also included.
Section 6, Troubleshooting and Testing, covers audio performance checks,
troubleshooting aids, and user adjustments that are used to service and maintain the
DSP6000A. This section also includes recommended test equipment and testfixtures.
Section 7, Schematic and Assembly Drawings, contains system schematics and board
diagrams to aid in troubleshooting and field repair.
The Appendix contains addendum information
to
the 950 MHz Microwave path
evaluation, spectral occupancy information, and AES/EBU digital audio data format
overview.
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602-11157-TCt R: A
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Section 1
System .
Characteristics
Section Contents
1.1
Introduction
1.2 System Features
1.3 DSP6000A System
1.3.1 DSP6000ASystem Specifications
1.3.2 DSP6000E Encoder Specifications
1.3.3 DSP6000D DecoderSpecifications
1.4 System Description
1.4.1 DSP6000E Encoder Description
1.4.2 DSP6000D Decoder Description
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1-2 System Characteristics
1.1 Introduction
The DSP6000A Digital Studio-Transmitter Link (DSTL) system conveys high quality
program material over
FM
radio or fractional
T1
(FT1) networks to a remote site.
Typically, program material is transmitted from a studio site to a remote transmitter site
orto a repeater site.
The DSP6000E and DSP6000D comprise a digital audio codec (coder/decoder) which
converts high-quality audio material into a bandwidth-reduced digital signal compatible
with transmission over conventional
FM
radio links. This operation is shown
in
Figure
1-1
. When used
in
conjunction with the PCL6000
or
PCL606 studio-transmitter links
(STL), the overall system constitutes a digital STL radio spectrally compatible with
existing FCC Part 74 frequency allocations.
The DSP6000E encoder accepts four discrete audio program inputs, or one digital
stereo program input with two discrete audio program inputs. The encoder generates a
bandwidth-efficient digital baseband data stream that is accepted
at
the composite input
of
the STL transmitter. This results
in
an efficient continuous-phase frequency shift
keying (CPFSK) modulation from the transmitter.
The DSP6000D decoder receives the recovered digital baseband from the STL receiver
and translates this signal back to high quality program audio
or
digital stereo for output.
The system also has provisions for two low-speed (up to 9600 baud) asynchronous data
channels for supervisoryorother auxiliary applications.
The DSP6000A codec is also compatible with transmission over fractional
T1
networks.
The 4:1 data rate reduction provided by the codec facilitates the transmission
of
four
full-bandwidth program channels overa fraction
of
one
T1
service. The fractional use
of
the
T1
line typically provides a corresponding economy
in
monthly line costs.
[
MA
IN LE
FT
AUDIO
MAIN
RIGHT
IN SCA1
SCA2
~
DATA1
DATA DAT
A2
IN
STEREO
PCM
DSP6000E
DIGITAL
ENCODER
(MD1049·2)
PC
L
6010
STL
TRANSMI
TTER
Figure
1-1
PCl
0020
STL
RECEIVER
OSP6000D
DI
GITAL
DECODER
MAINLEFT
]
IN RIGHT
AUDIO
SCA1
OUT
SCA2
OATA1 ]
OATA2 DATA
OUT
STEREO
PCM
DSP6000A Digital Studio-Transmitter Link (DSTL) System
DSP6000A
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System Characteristics 1-3
1.2 System Features
In
addition to establishi
ng
a new industry standard
for
studio-transmitter link
performance, the OSP6000A incorporates many new and innovative features to aid in
application, operation, installation, and maintenance
of
the system. These features
include:
• CD quality audio performance.
• Operation through existing analog
FM
STL gear.
• Operation through fractional
T1
networks.
• Highersystem gain,
26
dB morethan composite ST
L.
• Degradation-free multiple hops.
• Linear-phase audio channels.
• Configurable for up to 4 audio program channels per STL system.
• No crosstalk between channels.
• No background chatterfrom co-channel
or
adjacent-channel interference.
• Built-in AES/EBU digital audio interface.
• Built-in data channels eliminate need
for
data sub-carrier.
• Extensi
ve
status monitoring.
• Peak-reading LED bargraph display
for
all audio channels.
• Adjustable bit error rate threshold indication for monitoring transmission
quality.
• Use
of
field programmable gate arrays (FPGA's) greatly reduce circuit
densit
y,
enhance reliability, and facilitate rapid field upgrades and
enhancements.
• Integrated construction eliminates harnessing
to
enhance reliability.
• Selectable RF spectral
eff
iciency.
• Encoder input sample rate converter (SRC)
for
digital audio operation from
30
to
50 kHz.
NOTE
Study this manual
at
least through Section 3 before attempting to install
yoursystem.
DSP6000A
602
-11157-11
R:
A
www.SteamPoweredRadio.Com
1-4 System Characteristics
1.3 DSPG000A System
1.3.1 DSP6000A System Specifications
Frequency Response
Distortion
Dynamic Range
Crosstalk
Level Stability
Data Coding Method
Sample Rate
Time Delay
Bit Error Immunity
RF
Spectral Efficiency
Sensitivity
Data Channels
Program Channels
Transmission Rates
Wide:
Narrow:
20
Hz
to
15 kHz
±0
.2
dB
20
Hz
to
7.5
kHz
±0
.2
dB
< .01%, subjective
>
86
dB
(90
dB
typical) static
< -80
dB
<
0.2
dB
Sub-band
ADPCM
32
kHz
(internal),
30-50
kHz
at
AES/EBU input
<
3.8
ms
> 104
for
no
subjective loss in audio quality
Std Efficiency:
0.7
bps/Hz 50
dB
down
High Efficiency: 1.4 bps/Hz
50
dB
down
5
µV
(-93 dBm)
at
104
BER
for
PCL6000
for
two
channel configuration (standard efficiency)
DATA 1:
RS-232; selectable baud rates from 4800, 2400, 1200,
300
baud
DATA2:
RS-232; selectable baud rates from 9600, 4800, 2400,
1200,
300
baud
1
-4
channels; programmable
as
15
or
7.5 kHz;
transmission rate changes
as
function
of
number
of
channels
and
bandwidths
selectable from
64,128,205,256,341,410,
and
512
kbps, depending
on
channel configuration
DSP6000A
602-11157-11 R: A
www.SteamPoweredRadio.Com
System Characteristics 1-5
1.3.2 DSP6000E Encoder Specifications
Audio Input
Audio Level
Digital Audio Input
Data Inputs
Interface
1/0
Status Output
Indicators
Power, AC
Power, DC Options
OSP6000A
602-11157-11 R: A
Electronicallybalanced input, XLR type, female; CMRR
> 60 dB.
Each channel adjustable from -10 dBu to +18 dBu,
multi-turn, rear panel accessible
AES/EBU standard (16 bit word length), RS-422A
transformerbalanced
XLR
type,
11
Oohms input
impedance; Sample rate input range:
30-50
kHz
DATA
1: RS-232, 9-pin D-type, female
DATA
2: RS-232, 9-pin D-type, female
RS-422, 15-pin D-type, female;
Input
for
regenerated data and clock from decoder
in RPTR MODE;
Input
for
unformatted linear 16-bit PCM data and frame
sync in PCM MODE;
Output
for
program data and input/output for clock
in
FT1
MODE
15-pin D-type female provides active-low indication
of
system fault, clock fault, modem fault, processorfault,
muxfault, system-power fault relay contact, AES/EBU
fault, and DATA channel faults
Bargraph Display: dual ten-LED display indicates peak
program level relative to 100% full scale (0 dB)AID input
overload level for audio program channels; display
switchable from MAIN program to AUXILIARY program
channels
MAIN: indicates bargraph is displaying main Left/Right
program levels
AUX: indicates bargraph is displaying auxiliary
Aux 1/
Aux
2 program levels
AES/EBU: indicates status
of
digital audio input
FAULT: system fault alarm
115/230 VAC, 50
/60
Hz, 30 W
12
VDC:
24
VDC:
48
VDC:
9-18 VDC, 30 W, isolated ground
18-36
voe,
30
W,
isolated
ground
36-72 voe, 30 W, isolated ground
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