Wegener 4600 Assembly instructions

UNITY 4600 DIGITAL MEDIA
RECEIVER / DECODER
USER'S REFERENCE MANUAL




Unity 4600 User’s Manual
800032-01 Rev. C 2wegener.com
Data, drawings, and other material contained herein are proprietary to Wegener
Communications, Inc., and may not be reproduced or duplicated in any form
without the prior written permission of Wegener Communications, Inc.
The information contained herein is subject to change without notice. Revi-
sions may be issued to advise of such changes and/or additions.
Correspondence regarding this publication,
800032-01 Revision C
Third Edition: April 2004
should be forwarded to:
Wegener Communications, Inc.
Technology Park/Johns Creek
11350 Technology Circle
Duluth, GA 30097-1502
Phone: [phone]
Fax: [phone]
COMPEL CONTROLand UNITYare registered trademarks of
WEGENER Communications, Inc. All Rights Reserved.
Unity4600 is a trademark of WEGENER Communications, Inc. All Rights
Reserved.
All other trademarks are the property of their respective owners.
The Wegener Unity 4600 is approved under FCC Part 15B Class A,
UL/C-UL1950 3rd Edition, and CE [EN60950, EN55022(94), and
EN55024(98)].

Unity 4600 User’s Manual
wegener.com 3 800032-01 Rev. C

Unity 4600 User’s Manual
800032-01 Rev. C 4 wegener.com
This page intentionally blank

Unity 4600 User’s Manual
wegener.com 5 800032-01 Rev. C
Table of Contents
Chapter 1 General Information
1.1 Manual Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 U4600 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 1.1 The Unity 4600 Digital Media Receiver/Decoder . . 8
1.3 U4600 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 1 Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 2 Transport In Options . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.4 Safety Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1.5 Glossary of Terms and Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 3 Glossary of Terms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Chapter 2 Installation
2.1 Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.2 Location and Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
FCC-mandated suppression of radiated emissions . . . . . . . . . . . . . . 23
Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Desktop Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.3 U4600 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 2.1 U4600 Rear-panel Connector Locations . . . . . . . . 26
Figure 2.2 U4600 Transport In Options . . . . . . . . . . . . . . . . . . 27
Table 4 Rear-panel Connectors. . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 5 Front-panel Connectors . . . . . . . . . . . . . . . . . . . . . . . . 30
2.4 Serial Port Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Device assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Device configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 6 Device Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . 31
Device handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.5 Installation Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
RF input check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Audio/video check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
DTMF Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Relay Pulse Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Chapter 3 Operation
3.1 Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Functional summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Automated recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Monitoring and control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 3.1 Unity 4600 Functional Block Diagram. . . . . . . . . . 37

Unity 4600 User’s Manual
800032-01 Rev. C 6 wegener.com
3.2 Operation from Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Front-panel layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 3.2 U4600 Front-panel Layout. . . . . . . . . . . . . . . . . . . . 38
LCD screen relationships. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 3.3 LCD Screen Relationships. . . . . . . . . . . . . . . . . . . . 39
LCD screen content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 3.4 Unity 4600 Top-level Screens . . . . . . . . . . . . . . . . . 40
Home and default screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Interpreting LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 3.5 LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Table 7 Front-panel LED Indicator Descriptions . . . . . . . . . . 43
Front-panel audio monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.3 Operation from Local/Remote Terminal . . . . . . . . . . . . . . . . . . . . . . 45
Overview and syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
User commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Chapter 4 Maintenance and Troubleshooting
4.1 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4.2 General Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
No output or indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
No audio, video, or ASI output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Missing an audio, video, or ASI output while others are okay . . . . . 70
4.3 Alarms and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Table 8 Alarm and Warning Descriptions . . . . . . . . . . . . . . . . 71
Chapter 5 Customer Service
5.1 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
5.2 Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Appendix A Monitoring and Control Details
A.1 Basic Navigation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
A.2 Info Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
A.3 Menu Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
A.4 Parameter Screens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Index

wegener.com 7 800032-01 Rev. C
CC
C
Chapter 1 General Information
1.1 Manual Overview
This manual provides instructions and reference information for the proper
installation and operation of the Wegener Model Unity 4600 Digital Media
Receiver/Decoder, referred to throughout this manual as the Model U4600 or
U4600.
The manual is divided into the following chapters:
1 General Information - a description of your U4600, its functions and
specifications, and a glossary of terms.
2 Installation - procedures and information for the correct and safe instal-
lation of your U4600.
3 Operation - instructions for starting and operating your U4600.
4 Maintenance and Troubleshooting - information about maintaining
your U4600 and resolving possible operating difficulties.
5 Customer Service - Our warranty and information on obtaining help.
An Index of keywords is also provided to help you quickly locate needed
information.
Please e-mail any suggestions or comments concerning this manual to
[e-mail]. If you prefer to post them through the mail, please
send your comments to the address below. If you have substantial or complex
changes to recommend, our preference is that you copy the page(s) in question,
mark your changes on that copy, and fax or mail us the copy. We always
appreciate constructive criticism.
Our Address:
Attn: Manuals
Wegener Communications, Inc.
Technology Park / Johns Creek
11350 Technology Circle
Duluth, GA 30097-1502
Our Fax Number: [phone]

Unity 4600 User’s Manual
800032-01 Rev. C 8 wegener.com
1.2 U4600 Overview
Functional
Description The Wegener Model Unity 4600 Digital Media Receiver/Decoder is a fully
DVB-compliant satellite video IRD. The U4600 receives an L-band RF carrier
from an external LNB, demodulates the carrier, extracts the MPEG transport
stream, and provides the decompressed program or programs to DVB-ASI,
composite video, and/or stereo audio outputs.
Features include:
•Control by local user or remote COMPELsystem
•Download of software application upgrades via satellite
•Supports COMPEL

/CA Conditional Access at transport level or by program
•Supports receiver card options using either DVB-QPSK or Advanced
Turbo-Modulations (Turbo-QPSK, T-8PSK, or T-16QAM)
•DVB-ASI transport stream output with network-controlled program mapping
•Supports ISO 13818-1 transport rates from 2.5 to 55 Mbps (with local decom-
pression) or up to 86.25 Mbps (to program-mapped ASI transport only)
•Local decompression of MPEG-2 video and MPEG-2 (L1 and L2) and/or
Dolby AC-3 audio
•Auto-recognition and support of 525-line NTSC or 625-line PAL
•Audio-only mode option for radio networks
•Alarm relay
•Cueing relays and DTMF cue tone outputs standard
•Optional SCTE 35 DPI message filter for network control of local ad avails
•Optional front-panel audio and video monitors
•Web browser control (August 2004)
Physical
Description The U4600 is housed in a standard, 1 RU, rack-mountable chassis. Its front
panel (see Figure 1.1 The Unity 4600 Digital Media Receiver/Decoder) pro-
vides a user interface through six push buttons and an LCD as well as monitor-
ing through both audio and video ports. The rear panel holds connectors for
input and output signals, LNB power supply, serial and Ethernet monitoring
and control, alarm and user relays, and AC input power. The unit also includes
two Unity expansion module slots.
Figure 1.1 The Unity 4600 Digital Media Receiver/Decoder

Unity 4600 User’s Manual
wegener.com 9 800032-01 Rev. C
1.3 U4600 Specifications
Table 1: Technical Specifications
Characteristic Specification
POWER
Voltage 90-132 or 175-264 VAC auto-detect/selected
Frequency 60/50 Hz ±2%
Consumption < 35 watts typical with full LNB DC load & QPSK receiver
TRANSPORT IN OPTIONS See Table 2: Transport In Options on page 13
CONDITIONAL ACCESS
Wegener COMPEL/CA Transport-level or by program
PIN Scrambling
Turnaround option to bypass scrambled
streams to ASI output (Contact factory)
TRANSPORT DEMULTIPLEXING
Aggregate MPEG Transport Rate 2.5 to 86.25 Mbps (55 Mbps in Release 1) if not limited by
symbol-rate limits of installed receiver card. This rate is guar-
anteed for reception and transmission to ASI port only. For
local decompression of audio and video, the maximum trans-
port rate remains 55 Mbps.
Number of Programs Unlimited
PSI Recognition Automatic
DVB ASI OUTPUT
Physical Layer 270 Mbaud signaling on coaxial cable
Levels ~1.1 Vp-p into 75 Ωunbalanced
Stream Padding Minimum of one K28.5 null character padding in inter-byte
gaps, strategy after that is to add equal pad amounts between
bytes before adding extra padding between TS packets
Stream Processing (network-controlled)
Program mapping (routing of incoming program content to up to
16 virtual programs at output) and/or conditional DPI filtering.
PROGRAM DECOMPRESSION
Video MPEG-2, 4:2:0 Chroma sampling
Audio MPEG-1 Layers 1 & 2
Audio Dolby AC-3 (optional), L/R downmix only

Unity 4600 User’s Manual
800032-01 Rev. C 10 wegener.com
COMPOSITE VIDEO OUTPUT
Output Level 1.0 Vp-p, ± 2%
Output Impedance 75 Ω
Multiburst NTSC: From 0.5 to 4.2 MHz: ≤ ±0.8 dB
PAL-B: From 0.5 to 4.8 MHz: ≤ ±1.2 dB
Differential Gain ≤4 IRE
Differential Phase ≤ 1.5°
L/C Gain Inequality ≤ ±4 IRE
L/C Delay Inequality ≤ ±26 ns
Line Time W-form Distortion ≤1.0 IRE p-p
Field Time W-form Distortion ≤3 IRE p-p
Video SNR Weighted ≥ 56 dB
VBI Data Re-insertion EIA 608 closed captioning & XDS from ATSC and also Har-
monic and Tandberg proprietary protocols
AUDIO OUTPUT
Output Level-MAX PPL +18.0 dBm into 600 ohms @ 0 dB attenuation
+ 24.0 dBm is optional
Output level adjust range 0 to 20 dB attenuation in 2 dB steps from Output Levels above
Output Impedance Balanced: < 60 Ω
Frequency Response 20Hz to 20 kHz, + 0.5/-1.5 dB
50 Hz to 15 kHz, ± 0.5 dB
Phase Accuracy 50 Hz to 15 kHz, ≤±2° from linear phase
SNR ≥80 dB (22 Hz to 20 kHz) unweighted
Dynamic Range 24 bits
Table 1: Technical Specifications
Characteristic Specification

Unity 4600 User’s Manual
wegener.com 11 800032-01 Rev. C
DTMF OUTPUT
Type Low-Z balanced output
DTMF tones 16 tone-pairs, std. telco DTMF
Tone Timing < 230 ms to generate 4 tone-pair sequence
Output Level Range +8 to –2 dBm into 600 Ω; software adjustable in step incre-
ments of 6% of full-scale voltage
FRONT-PANEL MONITORS (actively-isolated from, but otherwise buffered copies of the
standard analog outputs)
Video Composite video; 1 Vp-p, 75 Ω
Audio One stereo pair (user-selectable from audio port 1 or 2),
Level: ~ -13 dB below main audio output
(if set for +18 dBu output PPL)
Impedance: < 60 Ω, unbalanced
SERIAL PORTS
Standard RS232, DCE
Handshaking None
Selectable Services Terminal monitoring and control
Modem dial-in
Auxiliary async data output (Release 2 or later)
COMPELE-mail character-based async output
Local COMPEL control input (testing only)
Baud Rates Up to 38.4 kilobaud
Formatting 8 data bits, one start, one stop-bit, half-duplex. Parity selection
set by unit software.
ETHERNET PORT
Physical Layer 10baseT, 100baseT (twisted pair) on RJ45 jack
Media Access and Link Layers Per IEEE 802.3 (Ethernet)
Network and Transport Layers Binds to TCP/IP stack which enables Web-based control
(Release 4 or later).
Table 1: Technical Specifications
Characteristic Specification

Unity 4600 User’s Manual
800032-01 Rev. C 12 wegener.com
ALARM/CUEING RELAYS One relay dedicated to indicate unit ALARMS and two relays
dedicated to user control (such as cueing). The ALARM relay
automatically de-energizes for alarm conditions so that power
loss to the unit indicates as an alarm.
Type Form C, wiper contacts NC contact when de-energized and
NO contact when energized
Polarity Common, NC and NO contacts supplied externally
Rating 30VDC open circuit, 100 mA max current closed
FRONT-PANEL EMAIL Up to 512-character messages from COMPEL. New mes-
sages over-write older messages. May also be cleared by local
user.
CHASSIS
Height Std. 1RU 1.75 inches (4.45cm)
Width EIA std. 19 inches (48.26cm)
Depth Back of rack-ears to rear panel: 14.9 inches (37.85 cm)
Back of rack-ears to end of connectors: 15.7 inches (39.88 cm)
Weight ~10.5 lb. (with Receiver card & AV monitor option only)
Cooling Fan-cooled with left-side inlet and right-side exhaust (viewed
from front). Fan is activated after unit reaches specific temper-
ature.
ENVIROMENTAL
Operating Temperature +10°C to +50°C (+50°F to +122°F) Unit gives warning indi-
cation for over-temperature conditions
Storage Temperature -20°C to +70°C (-4°F to 158°F)
AGENCY APPROVALS
UL UL1950, 3rd Edition
FCC Part 15B Class A, per Title 47 CFR (FCC rules)
CE EN60950, EN55022(94), and EN55024(98)—tested per
EN61000-4-2(95), -4-3(02), -4-4(95), -4-5(95), -4-6(96), and
–4-11(94)
Table 1: Technical Specifications
Characteristic Specification

Unity 4600 User’s Manual
wegener.com 13 800032-01 Rev. C
Table 2: Transport In Options
Characteristic Specification
DVB-QPSK RECEIVER OPTION (No RF Switch)
RF INPUT
Input Impedance 75Ω unbalanced
Input VSWR, 75-Ωsystem < 2.1:1 (9.0 dB R.L. min), 950-1450 MHz
< 3.0:1 (6.0 dB R.L. min), 1450-2150 MHz
Surge Resistance Guaranteed survival from up to 10 direct-coupled 8kV dis-
charges (per IEC 801-2)
RF TUNING
Input Frequency Range 950 to 2150 MHz
LO Leakage at Input ≤ -50 dBm
Symbol-rate Range 2 to 45 Msps (may be limited by Transport Rate limits)
Tuning Resolution 10 kHz
Input Signal Level Range -25 to -65 dBm
Signal Level Warning Limits
warns within +10/-5 dB of upper limit and +5/-10 dB of lower limit
Maximum Aggregate Input Power -5 dBm min
DEMODULATOR/FEC
Modulation QPSK (α =.35) per DVB (EN 300 421)
Carrier acquisition range ±1 MHz or ± 10% of symbol-rate QPSK, whichever is greater
Max Eb/N0@ Quasi-error-free threshold
(less than one uncorrected error-event per
hour)
Per EN300 421:
QPSK R=1/2: 4.5 dB,
QPSK R=2/3: 5.0 dB,
QPSK R=3/4: 5.5 dB,
QPSK R=5/6: 6.0 dB,
QPSK R=7/8: 6.4 dB
RF Power Level Estimator
(locked to carriers or not)
Unitless metric SIGNAL corresponds to input power as follows:
above -25dBm
-25dBm
-35dBm
-45dBm
-55dBm
-65dBm
below -65dBm
no signal
Extrapolated from 90 up to 100+
90
70
50
30
10
Extrapolate from 10 down to <0
<0
Accuracy: unit to unit <±5 dBm; over frequency <±10 dBm

Unity 4600 User’s Manual
800032-01 Rev. C 14 wegener.com
LNB DC POWER (supplied on RF center conductor)
Activation User- or network-controlled selectable: ON or OFF
Voltage ~ +18.7 VDC nominal at no loading, +18.0 VDC min. at max
loading
Current (full load) 350 mA max
Short-circuit protection Thermal fuse, tripping at ~500 mA.
European “Universal LNB” Software may be upgraded for “Universal Single LNB” polar-
ization and freq-band control per ASTRA recommendation
DVB-QPSK RECEIVER WITH 4-PORT RF SWITCH OPTION
SWITCHED RF INPUTS
Input Impedance 75Ω unbalanced
Isolation, port-to-port > 45 dB, 950-1450 MHz
> 40 dB, 1450-2150 MHz
Input VSWR, 75-Ωsystem, selected port < 2.6:1 (7 dB R.L. min), 950-1450 MHz
Not guaranteed, 1450-2150 MHz
Input VSWR, 75-Ωsystem, unselected
port < 2.0:1 (10 dB R.L min), 950-1450 MHz Not guaranteed, 1450-2150 MHz
Surge Resistance Guaranteed survival from up to 10 direct-coupled 8kV dis-
charges (per IEC 801-2) whether port is selected or not
RF TUNING Same as QPSK option described above
DEMODULATOR/FEC Same as QPSK option described above
LNB DC POWER Supplied on separate 2-pin header. Performance otherwise the
same as QPSK option described above
TURBO PSK RECEIVER OPTION, BROADCOM PROTOCOL
RF INPUT
Input Impedance 75Ω unbalanced
Input VSWR, 75-Ωsystem < 2.1:1 (9.0 dB R.L. min), 950-1450 MHz
< 3.0:1 (6.0 dB R.L. min), 1450-2150 MHz
Surge Resistance Guaranteed survival from up to 10 direct-coupled 8kV dis-
charges (per IEC 801-2)
Table 2: Transport In Options
Characteristic Specification

Unity 4600 User’s Manual
wegener.com 15 800032-01 Rev. C
RF TUNING
Input Frequency Range 950 to 2150 MHz
LO Leakage at Input ≤ -60 dBm
Symbol-rate Range 1 to 30 Msps (may be limited by Transport Rate limits)
Tuning Resolution 10 kHz
Input Signal Level Range -25 to -65 dBm
Signal Level Warning Limits warns within +10/-5 dB of upper limit and +5/-10 dB of lower
limit
Maximum Aggregate Input Power -8 dBm min
DEMODULATOR/FEC
Modulation 1. DVB-QPSK (α =.35) per EN 300 421
2. Advanced "Turbo-QPSK" (R=1/4, ½, ¾) per Broadcom
proprietary protocol
3. Advanced "Turbo-8PSK" (R=2/3, 5/6, 8/9) per Broadcom
proprietary protocol. [ R=¾ Type I and II available after first
Release.]
4. Advanced "Turbo-16QAM" (R=¾) per Broadcom propri-
etary protocol
Carrier acquisition range ±1 MHz or ± 10% of symbol-rate QPSK, whichever is greater
Table 2: Transport In Options
Characteristic Specification

Unity 4600 User’s Manual
800032-01 Rev. C 16 wegener.com
Max Eb/N0@ Quasi-error-free threshold
(less than one uncorrected error-event per
hour)
1. DVB-QPSK
QPSK R=1/2: 4.5 dB,
QPSK R=2/3: 5.0 dB,
QPSK R=3/4: 5.5 dB,
QPSK R=5/6: 6.0 dB,
QPSK R=7/8: 6.4 dB
2. Turbo-QPSK
R=1/4: 2.9 dB,
R=1/2: 2.4,
R=3/4: 3.6
3. Turbo-8PSK
R=2/3: 4.8 dB,
R=3/4(I): 5.4,
R=3/4(II): 5.8,
R=5/6: 6.8,
R=8/9: 8.2
4. Turbo-16QAM
R=3/4: 6.6 dB
RF Power Level Estimator
(locked to carriers or not) Unitless metric SIGNAL corresponds to input power as fol- lows:
above -25dBm
-25dBm
-35dBm
-45dBm
-55dBm
-65dBm
below -65dBm
no signal
Extrapolated from 90 up to 100+
90
70
50
30
10
Extrapolate from 10 down to <0
<0
Accuracy: unit to unit <±5 dBm; over frequency <±10 dBm
LNB DC POWER
Activation User- or network-controlled selectable: ON or OFF
Voltage ~ +18.7 VDC nominal at no loading, +18.0 VDC min. at max
loading
Current (full load) 350 mA max
Short-circuit protection Thermal fuse, tripping at ~500 mA.
European “Universal LNB” Software may be upgraded for “Universal Single LNB” polar-
ization and freq-band control per ASTRA recommendation
Table 2: Transport In Options
Characteristic Specification

Unity 4600 User’s Manual
wegener.com 17 800032-01 Rev. C
TURBO PSK RECEIVER WITH 4-PORT SWITCH OPTION
RF SWITCH INPUT 4-port, single-throw switch
Input Impedance 75Ω unbalanced
Isolation, port-to-port > 45 dB, 950-1450 MHz
> 40 dB, 1450-2150 MHz
Input VSWR, 75-Ωsystem, selected port < 2.1:1 (9.0 dB R.L. min), 950-1450 MHz
< 3.0:1 (6.0 dB R.L. min), 1450-2150 MHz
Input VSWR, 75-Ωsystem, unselected
port < 2.1:1 (9.0 dB R.L. min), 950-1450 MHz < 3.0:1 (6.0 dB R.L. min), 1450-2150 MHz
Surge Resistance Guaranteed survival from up to 10 direct-coupled 8kV dis-
charges (per IEC 801-2) whether or not port is selected
RF TUNING Same as QPSK option described above
DEMODULATOR/FEC Same as QPSK option described above
LNB DC POWER Not supplied
ASI TRANSPORT INPUT OPTION
DVB-ASI INPUT One input per DVB ASI per EN50083-9 Annex B
Physical layer 270 Mbaud signaling on 75Ωcoax cable
Minimum byte gaps Down to 0-byte interbyte gaps
Transport data rate Limited to rates allowed by parent IRD
Table 2: Transport In Options
Characteristic Specification

Unity 4600 User’s Manual
800032-01 Rev. C 18 wegener.com
1.4 Safety Summary
The U4600 is designed for safe use with few special precautions required of
the user. The following items are basic precautions to use when installing and
working with your U4600:
Do not open the U4600 chassis cover.
The U4600 incorporates security labels over some of the screws. There are no
user-serviceable components within the U4600. Tampering with these security
labels or opening the unit will void your warranty. If you have questions, con-
tact Wegener's Customer Service Department at the address or numbers listed
in Chapter 5 Customer Service on page 79.
1.5 Glossary of Terms and Abbreviations
Table 3: Glossary of Terms
Term Definition
Ad avail, digital The opportunity for a local program splicer to insert local content in the MPEG PES
streams in substitution for “regular” network-distributed programming. The avail is
bounded by “splice out” and “splice in” points. "Splice points" are seamless insertion
points (located for the splicer by DPI messages) where the compressed stream may be
broken and substituted without frame-by-frame interruption of video.
Ad avail, analog The opportunity for local users to switch from the network-supplied programming to
locally-generated content (commercials). This is signaled by use of DTMF tones or clo-
sures of cue relays.
Alarm A condition or notification of a condition that prevents proper U4600 functioning.
Application Software The main host software which sets up the unit hardware, runs the process of acquiring
transport stream sources, sets up and monitors the demux and decompression processes,
monitors unit operations, and interfaces with the network and local users.
ASI (or DVB-ASI) An “asynchronous” bit-serial physical interface for transport streams. Transmitting and
receiving functions are designed such that the time relationships between all packets and
their timing references are unchanged.
Audio Language
Descriptor Legacy 3-character MPEG descriptor applied to a program’s audio streams. It was origi- nally allocated to designate languages, but is now used for generic identification.

Unity 4600 User’s Manual
wegener.com 19 800032-01 Rev. C
Automated Recovery
(or Recovery) The mechanism used when the U4600 is unable to acquire a valid transport stream, loses network control or detects an invalid control stream, or is unable to deliver the required
services using its current settings. The unit automatically begins attempting operations
under "backup" unit settings stored in the presets table until it can return to normal opera-
tion or is stopped by local user command.
Boot loader Software residing in non-writable zone of flash which executes at unit reset. It will verify
and load the preselected application.
CA See "Conditional Access".
COMPELWegener's network control software that may be used to manage your U4600 as well as
other hardware.
Conditional Access Wegener’s system for securing the transmitted transport stream from unauthorized
access. It features distribution of ciphered authorizing messages within a special PID.
Upon deciphering in secure processors within the IRD, these messages continuously
update the IRD with the current descrambling key.
DPI Digital Program Insert. A special message, borne in an MPEG PID associated with a par-
ticular program, that signals the boundaries of ad avails.
DTMF Dual-Tone Multi-Frequency. Tone signaling system used by the legacy telephone system.
Tone pairs represented each of the keyboard items 0-9, *, and #. This system may be used
to control external cueing equipment.
DVB Digital Video Broadcast working group. This is a shorthand designation for a group of
industry standards that provide enhancements in the use of MPEG transport streams. (For
example, one DVB standard defined the standard way QPSK-modulated carriers would
convey these streams over satellite world-wide.)
Eb/N0Energy-per-bit per Noise density-per-Hertz. This is a unitless ratio that expresses signal-
to-noise ratio in carrier transmission systems that convey digital data. A quality measure-
ment for any such system is the Eb/N0needed to just convey the digital data within
acceptable error rates. This is called the “Eb/N0threshold”.
Ethernet The widely-used LAN technology specified by IEEE standard 802.3
IRD Integrated Receiver-Decoder. A product which features a "receiver" to extract transport
streams from satellite-borne carriers and a companion "decoder" to decompress MPEG
elementary streams (from within said transport streams) in order to recreate the original
audio/video/data signals. The Unity 4600 is an IRD.
Keep-alives
(COMPEL) Simple COMPEL network messages, addressed to "all", bearing date and time.These are transmitted regularly (every 5 seconds, for example) so that IRDs may quickly and con-
tinuously verify their network connection.
KMS Key Management System. The sub-system within the Wegener Conditional Access sys-
tem that creates and ciphers the scrambling keys and then distributes them to the uplink
UMX5010 and all downlinked IRDs conveyed in a special PID within the transport
stream.
LAN Local area network. Your U4600 may be connected to an Ethernet LAN.
Table 3: Glossary of Terms
Term Definition

Unity 4600 User’s Manual
800032-01 Rev. C 20 wegener.com
LCD Liquid crystal display. The front-panel screen on your U4600 is a liquid crystal display.
LED Light-emitting diode. The front-panel indicator lights on your U4600 are LEDs
Mbps, kbps or Msps Units of data transport rate - Megabits per second (1 million bits per second), kilobits per
second (1 thousand bits per second), or million symbols per second (1 million symbols
per second)
MPEG Moving Picture Experts Group - refers to the method of video compression established by
this group. (The Unity 4600 utilizes the MPEG2 format for video.)
Network Protection
Mode A non-volatile setup parameter whose value is “Shared” or “Protected” (or “not Shared”). Similarly, each network control stream has a “Share” status field as part of the COMPEL
packet framing. A network control stream is considered “invalid” to the U4600 if the net-
work ID in the stream differs from that of the IRD and if either the network stream or the
U4600 are set to be “Protected”. For test purposes only, there is a generic network ID that
the COMPEL system may transmit which is always considered to be “valid” by all IRDs.
NTSC National Television System Committee. The composite color video standard used domes-
tically (and in a few countries outside US) based on 525-line 59.97 Hz field rate (with 2:1
interlace).
PAL Phase-Alternating-Line. A set of composite color video standards used worldwide (out-
side US) which implements a line-by-line reversal of phase of one of the orthogonal color
components. For our use, all PAL signals are assumed to be 625-line 50 Hz field-rate sys-
tems with varying chroma and luma bandwidths and color subcarrier frequencies.
PAT Program Allocation Table. A PSI table within an MPEG transport stream which cross-ref-
erences all available programs to a PID for its PMT. This table is always present in legal
transport streams and must always be in the clear (not scrambled) even when Conditional
Access scrambling is used.
PCR Program Clock Reference. A time-base signal used to synchronize the IRDs internal tim-
ing to the same timing in the MPEG encoder for the received program. Multiple programs
may share a PCR, depending on the multiplexer used to create the final transport stream.
PES Stream Packetized Elementary Stream. The MPEG designation for a compressed component of a
Program (such as audio or video) which includes the timing information necessary for
synchronization (e.g. - synchronizing audio to video).
PID (or Packet ID) The unique transport stream packet identifier assigned to each constituent data stream
within the transport stream. Also, in this document, “PID” is used to designate the stream
itself.
PMT Program Map Table. A PSI table within an MPEG transport stream which cross-refer-
ences a program (or programs) against all the PIDs that bear its component streams (such
as audios, video, DPI, PCR, etc.). IRDs need this table to decode the compressed compo-
nents of that program.
Presets Table A non-volatile table of unit presets. This table is used for either automatic recoveries or as
a shorthand method to quickly reconfigure the unit. The presets table may be pro-
grammed at the factory and edited by the customer, either locally or via network control.
Table 3: Glossary of Terms
Term Definition