Motorola Starline SG1000 User manual

SG1000 Split Third Port
Telecommunications Optical Node
Installation and Operation Manual
RF
4
RF
3
7
3
STARLINE®

Caution
CautionCaution
Caution
These servicing instructions are for use by qualified personnel only. To reduce the risk of electrical shock, do not perform any servicing other than that
contained in the Installation and Troubleshooting Instructions unless you are qualified to do so. Refer all servicing to qualified service personnel.
Special Symbols That Might Appear on the Equipment
Special Symbols That Might Appear on the EquipmentSpecial Symbols That Might Appear on the Equipment
Special Symbols That Might Appear on the Equipment
INVISIBLE LAS ER R ADIATION
PEAK POWER 5.0mW
WAVELENGTH 1300nm
CLA SS II Ib LASER PR ODU CT
CHAPTER 1 SUBCHAPTER J
THIS PRODUCT COMPLIES WITH 21CFR
AVOID DIRECT EXPOSURE TO BEAM
DANGER
This is a class 1 product that contains a class IIIb laser and is intended for operation in a closed environment with
fiber attached. Do not look into the optical connector of the transmitter with power applied. Laser output is invisible,
and eye damage can result. Do not defeat safety features that prevent looking into optical connector.
This product contains a class IIIb laser and is intended for operation in a closed environment with fiber attached. Do
not look into the optical connector of the transmitter with power applied. Laser output is invisible, and eye damage
can result. Do not defeat safety features that prevent looking into optical connector.
This symbol indicates that dangerous voltage levels are present within the equipment. These voltages are not
insulated and may be of sufficient strength to cause serious bodily injury when touched. The symbol may also appear
on schematics.
The exclamation point, within an equilateral triangle, is intended to alert the user to the presence of important
installation, servicing, and operating instructions in the documents accompanying the equipment.
For continued protection against fire, replace all fuses only with fuses having the same electrical ratings marked at
the location of the fuse.
This equipment operates over the marked Voltage and Frequency range. Different types of line cord sets may be used for
connections to the mains supply circuit and should comply with the electrical code requirements of the country of use. This
equipment requires a grounding conductor in the line cord. The line cord provided with the equipment is acceptable for use
with NEMA Style 5-15R ac receptacles supplying nominal 120 Volts.
CAUTION:
CAUTION:CAUTION:
CAUTION: TO PREVENT ELECTRICAL SHOCK, DO NOT USE THIS (POLARIZED) PLUG WITH AN EXTENSION CORD, RECEPTACLE, OR OTHER OUTLET
UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.
CAUTION:
CAUTION:CAUTION:
CAUTION: USE ONLY MAIN LINE CORD THAT COMPLIES WITH THE COUNTRY’S PRODUCT SAFETY REQUIREMENTS.

FCC Complian
FCC ComplianFCC Complian
FCC Compliance
cece
ce
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 Installation 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/her own expense. Any changes or modifications not expressly approved by Motorola could void the user’s
authority to operate this equipment under the rules and regulations of the FCC.
Canadian Compliance
Canadian ComplianceCanadian Compliance
Canadian Compliance
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe A respects toutes les exigences du Règlement sur le matériel brouilleur du Canada.
Declaration of Conformity
Declaration of ConformityDeclaration of Conformity
Declaration of Conformity
We Motorola, Inc.
101 Tournament Drive
Horsham, PA 19044, U.S.A.
declare under our sole responsibility that the
STARLINE®Model SG1000 Split Third Port
to which this declaration relates is in conformity with one or more of the following standards:
EMC Standards
EMC StandardsEMC Standards
EMC Standards
EN55022 EN55024 EN50083-2 CISPR-22 CISPR-24
Safety Standards
Safety StandardsSafety Standards
Safety Standards
EN60065 EN60825 EN60950 IEC 60950 + A1: 1992 + A2: 1993 + A3: 1995 + A4: 1996
following the provisions of the Directive(s) of the Council of the European Union:
EMC Directive 89/336/EEC Low Voltage Directive 73/23/EEC
Copyright © 2002 by Motorola, Inc.
All rights reserved. No part of this publication may be reproduced in any form or by any means or used to make any derivative work (such as translation,
transformation or adaptation) without written permission from Motorola, Inc.
Motorola reserves the right to revise this publication and to make changes in content from time to time without obligation on the part of Motorola to
provide notification of such revision or change. Motorola provides this guide without warranty of any kind, either implied or expressed, including, but not
limited to, the implied warranties of merchantability and fitness for a particular purpose. Motorola may make improvements or changes in the product(s)
described in this manual at any time.
IBM is a registered trademark of International Business Machines Corporation.
Windows is a registered trademark of Microsoft Corporation.
Motorola, the stylized M logo, and STARLINE are registered trademarks and LIFELINE is a trademark of Motorola, Inc. All other product or service marks
are the property of their respective owners. © Motorola, Inc. 2002

SG1000 Split Third Port Installation and Operation Manual
Contents
Section 1
Introduction
Using This Manual............................................................................................................................................................................1-3
Related Documentation ...................................................................................................................................................................1-4
Document Conventions...................................................................................................................................................................1-4
If You Need Help...............................................................................................................................................................................1-4
Calling for Repairs............................................................................................................................................................................1-5
Section 2
Overview
Housing .............................................................................................................................................................................................2-2
Housing Lid..............................................................................................................................................................................2-2
Mounting Holes........................................................................................................................................................................2-2
Port Locations..........................................................................................................................................................................2-2
Gaskets.....................................................................................................................................................................................2-3
Power Supply....................................................................................................................................................................................2-5
Network Monitoring..........................................................................................................................................................................2-6
Ingress Control.................................................................................................................................................................................2-6
Configuration....................................................................................................................................................................................2-6
Forward RF Path...............................................................................................................................................................................2-8
Level Control...................................................................................................................................................................................2-10
Tilt Selection ..........................................................................................................................................................................2-10
Return Path .....................................................................................................................................................................................2-11
Optical Return Transmitters.................................................................................................................................................2-11
Section 3
Setup and Operation
Powering the Node...........................................................................................................................................................................3-1
60/90 Vac Supply .....................................................................................................................................................................3-1
220 Vac Supply ........................................................................................................................................................................3-5
Setting-Up the Forward Path...........................................................................................................................................................3-8
Selecting the Gain Control......................................................................................................................................................3-9
Forward Path Padding...........................................................................................................................................................3-10
Selecting the Wavelength.....................................................................................................................................................3-11
Optical Power Test Point ......................................................................................................................................................3-12
Verifying RF Output Levels...................................................................................................................................................3-12
Output Passives.....................................................................................................................................................................3-12

ii Contents
SG1000 Split Third Port Installation and Operation Manual
Configuring the Return-Path.........................................................................................................................................................3-14
Installing SG1000 Optical Modules..............................................................................................................................................3-15
Removing SG1000 Optical Modules.............................................................................................................................................3-16
Ingress Control Option..................................................................................................................................................................3-17
Status Monitor Option ...................................................................................................................................................................3-17
Cleaning the Optical Connectors.................................................................................................................................................3-18
Section 4
Installation
Pre-installation Procedures............................................................................................................................................................4-1
Removing the Lid....................................................................................................................................................................4-1
Removing the E-pack..............................................................................................................................................................4-1
Installing the Node...........................................................................................................................................................................4-2
Strand Wire Mounting.............................................................................................................................................................4-2
Installing the E-pack ...............................................................................................................................................................4-3
Splicing the Service Cable.....................................................................................................................................................4-3
Installing Pin-Type Connectors.............................................................................................................................................4-4
Installing the Coaxial Cables .................................................................................................................................................4-5
Installing the Fiber Cables .....................................................................................................................................................4-5
Closing the Housing .............................................................................................................................................................4-10
Appendix A
Specifications
Optical...............................................................................................................................................................................................A-1
Station RF.........................................................................................................................................................................................A-1
General..............................................................................................................................................................................................A-1
RF for the SG1-*/* Laser Transmitters ...........................................................................................................................................A-2
220 Vac Line Power Option.............................................................................................................................................................A-2
Appendix B
Torque Specifications
Abbreviations and Acronyms
Figures
Figure 1-1 SG1000 node—closed..................................................................................................................................................1-1
Figure 1-2 SG1000 node—open.....................................................................................................................................................1-2
Figure 2-1 SG1000 housing dimensions —front and side view................................................................................................2-2
Figure 2-2 Port locations................................................................................................................................................................2-3
Figure 2-3 Housing gaskets...........................................................................................................................................................2-4
Figure 2-4 SG1-PS power supply..................................................................................................................................................2-5

Contents iii
SG1000 Split Third Port Installation and Operation Manual
Figure 2-5 Configuration notation..................................................................................................................................................2-7
Figure 2-6 SG1000 – dual-output, optical-return block diagram ................................................................................................2-9
Figure 2-7 Relative level dB versus 750 MHz..............................................................................................................................2-10
Figure 2-8 Relative level dB versus 870 MHz..............................................................................................................................2-11
Figure 2-9 SG1000 optical transmitter block diagram...............................................................................................................2-12
Figure 3-1 SG1000 60/90 Vac power supply .................................................................................................................................3-2
Figure 3-2 Fuse configuration........................................................................................................................................................3-3
Figure 3-3 Fuse locations...............................................................................................................................................................3-4
Figure 3-4 SG1000 with 220 Vac power cord................................................................................................................................3-5
Figure 3-5 SG1000 amplifier cover with 220 Vac power option..................................................................................................3-6
Figure 3-6 SG1-PS/220 installed in the SG1000............................................................................................................................3-7
Figure 3-7 RF chassis with cover...................................................................................................................................................3-8
Figure 3-8 RF chassis with cover removed ..................................................................................................................................3-8
Figure 3-9 Gain control jumper......................................................................................................................................................3-9
Figure 3-10 Wavelength selection jumper ..................................................................................................................................3-11
Figure 3-11 MB-SP splitter............................................................................................................................................................3-13
Figure 3-12 MB-DC/* directional coupler.....................................................................................................................................3-13
Figure 3-13 SG1-DFBT optical transmitter..................................................................................................................................3-14
Figure 4-1 Rear view of housing, strand clamps, and pedestal mounting holes......................................................................4-2
Figure 4-2 Service cable connection and compression fitting...................................................................................................4-3
Figure 4-3 Center conductor length ..............................................................................................................................................4-4
Figure 4-4 Fiber tray and carriage..................................................................................................................................................4-6
Figure 4-5 Cable dressing with left port entry..............................................................................................................................4-7
Figure 4-6 Cable dressing with right port entry ...........................................................................................................................4-8
Figure 4-7 Retracted fiber tray .......................................................................................................................................................4-9
Figure 4-8 Housing bolt tightening sequence............................................................................................................................4-10
Tables
Table 3-1 AC fuses ..........................................................................................................................................................................3-3
Table 3-2 SG1000 pad chart, silicon-hybrid, high-gain..............................................................................................................3-10
Table 3-3 SG1 receiver minimum output levels..........................................................................................................................3-12
Table 3-4 Ingress switch states....................................................................................................................................................3-17
Table 3-5 Common problems.......................................................................................................................................................3-18

SG1000 Split Third Port Installation and Operation Manual
Section 1
Introduction
Motorola’s®SG1000 telecommunications optical node with split third port performs
lightwave-to-RF and RF-to-lightwave signal conversions in an optical transmission link. This
product supports a wide variety of advanced hybrid-fiber/coaxial network topologies.
Product enhancements including the activation of Port 3 as a split, fully diplexed RF port are
included in this manual.
As broadband communication systems continue to evolve, the demand increases for optical links
that carry the signal further into the transport system. These systems require additional
features and functionality such as digital compression and alternative access at significantly
lower costs. Fully configured, the SG1000 supports these next-generation telecommunication
networks. It also supports a variety of single and two-way broadband network applications such
as broadcast video, interactive video, telephony, and data.
Figure 1-1 illustrates a closed SG1000 telecommunications optical node:
Figure 1-1
SG1000 node—closed

1-2 Introduction
SG1000 Split Third Port Installation and Operation Manual
Figure 1-2 illustrates an open SG1000 telecommunications optical node:
Figure 1-2
SG1000 node—open
PUSH
Base
Lid
SG1000
Optical Transmitter
RETURN
INPUT JXP
RETURNINPUT
TEST POINT
ASSEMBLED
IN MEXICO
OPTICAL
POWER
TEST POINT
(1V/mW)
DANGER
O P T I C A L
O U T P U T
ASSEMBLED IN MEXICO
SG1-
RTN INPUTP JXP
TP2/3 -20dB
TP2/3 -20dB
JXP 2/3 3
H
L
2
P O R T 1
P O R T 2
TP1 -20dB
TOTAL P OWER
L
NOMINAL
-5 dBmV
1 V / m W
JXP 1
MONITOR
STATUS
RTN
MONITOR
STATUS
JXP 1
JXP 2/3
H
L
FWD
TP1 -20dB
S G 1 0 0 0
O p t i c a l N o d e
INPUT JXP
ICS
ICS
P O R T 3
REFER TO
MANU AL FOR
FUSE VAL UES
CAUTION:
CONTAINSPARTS
AND AS SEMBL IES
SUSC EPTIB LET O
DAMAGEBY
ELECTROSTATIC
DISCHARGE(ESD)
-20 dB
1 V / m W
OPTICAL
INPUT
FUSE 3
FUSE 1
FUSE 2
FTEC
NO USER SERVICABLE
PARTS INSIDE
AC TEST POINT
24V 5V
SG1-PS
TEST
POINT TEST POINT
CAUTION
USE CA UTION WHE N MAKI NG
INTERNAL ADJUSTMENTS
WITHCOVERREMOVED
VOLTAGES IN EXCESS OF
300 VOLTS ARE PRESEN T
UND ER CO VE R AND MAY
BE PRESENT FOR SEVERAL
MINUTES A FTER POWER
IS REMOVED
SEE INSTALLATION MANUAL
FOR SERVICE
LO (60V)
HI (90V)

Introduction 1-3
SG1000 Split Third Port Installation and Operation Manual
Features include:
! 750 MHz or 870 MHz forward bandwidth option
! Built-in optical receiver
! Optional optical return transmitter
! Optional LIFELINE™status monitoring
! Optional ingress switching capability through the LIFELINE status monitor
! One or two RF outputs with optional third port activation using MB-SP and MB-DC*
! Built-in thermal compensation
! 15 amp power passing
! Modular plug-in diplex filters and equalizers
! Support for low, standard, and high slope options
! 60/90 volt powering
Using This Manual
The following sections provide information and instructions to install, configure, and operate the
SG1000:
Section 1 Introduction provides a product description, related documentation, the technical helpline,
and repair/return information.
Section 2 Overview describes the functions of the SG1000 and includes details regarding your options
and their functions.
Section 3 Setup and Operation provides full configuration, setup of options, and bench testing
procedures that are recommended prior to installation. It also provides information governing
the applications required by your system.
Section 4 Installation provides instructions on how to install the SG1000.
Appendix A Specifications provides the technical specifications for the SG1000.
Appendix B Torque Specifications provides the appropriate torque specifications for the screws,
clamps, connectors, and bolts used in the SG1000.
Abbreviations
and Acronyms The Abbreviations and Acronyms list contains the full spelling of the short forms used in
this manual.

1-4 Introduction
SG1000 Split Third Port Installation and Operation Manual
Related Documentation
Although these documents provide information that may be of interest to you, they are not
required to install or operate the SG1000:
! LL-CU LIFELINE Control Unit Installation and Operation Manual
! LIFELINE for Windows®Site Preparation Guide
! LIFELINE for Windows Software Operations Manual
! Return Path Level Selection, Setup, and Alignment Procedure Reference Guide
Document Conventions
Before you begin using the SG1000, familiarize yourself with the stylistic conventions used in
this manual:
Bold type Indicates text that you must type exactly as it appears or indicates a default value
SMALL CAPS Denotes silk screening on the equipment, typically representing front- and rear-panel controls and
input/output (I/O) connections, and LEDs
*
(asterisk) Indicates that several versions of the same model number exist and the information applies to all
models; when the information applies to a specific model, the complete model number is given
Italic type Denotes a displayed variable, a variable that you must type, or is used for emphasis
If You Need Help
If you need assistance while working with the SG1000, contact the Motorola Technical Response
Center (TRC):
! Inside the U.S.A.: 1-888-944-HELP (1-888-944-4357)
! Outside the U.S.A.: 1-215-323-0044
! Online: http://www.motorola.com/broadband, click HTML/Modem Version, click
Customer Support, then click Web Support.
The TRC is open from 8 AM to 7 PM Eastern Time, Monday through Friday and 10 AM to 6 PM
Eastern Time, Saturday. When the TRC is closed, emergency service only is available on a
call-back basis. Web Support offers a searchable solutions database, technical documentation,
and low priority issue creation/tracking 24 hours per day, 7 days per week.

Introduction 1-5
SG1000 Split Third Port Installation and Operation Manual
Calling for Repairs
If repair is necessary, call the Motorola Repair Facility at 1-800-642-0442 for a Return for
Service Authorization (RSA) number before sending the unit. The RSA number must be
prominently displayed on all equipment cartons. The Repair Facility is open from 7:00 AM to
4:00 PM Pacific Time, Monday through Friday.
When calling from outside the United States, use the appropriate international access code and
then call 52-631-311-1100, to contact the Repair Facility.
When shipping equipment for repair, follow these steps:
1 Pack the unit securely.
2 Enclose a note describing the exact problem.
3 Enclose a copy of the invoice that verifies the warranty status.
4 Ship the unit PREPAID to the following address:
Motorola BCS
c/o Exel
Attn: RSA #___________
6908 East Century Park Dr.
Tucson, AZ 85706

SG1000 Split Third Port Installation and Operation Manual
Section 2
Overview
Motorola’s STARLINE®SG1000 with split third port is the newest addition to the next
generation of telecommunications optical nodes. It provides a low cost solution to support
evolving fiber-deep networks. It meets the latest demands of a single and two-way broadband
network application including broadcast video, telephony and data.
Configured with one optical receiver, two high-level RF outputs, and an optional return-path
module, the node offers low-cost flexibility. Ingress switching through LIFELINE enables you to
identify and isolate ingress problems and mitigate the effects. Modular design enables system
upgrades and component replacement with minimal system interruption.
Additional features include:
! SC/APC or FC/APC connectors
! Pedestal or strand mount housing
! Gas tube or Fast Trigger Electronic Crowbar (FTEC) surge protection
! Optional Silicon or Gallium Arsenide (GaAs) output hybrid
! Optional isolated distributed feedback (DFBT/* and DFBT3/*), isolated Fabry-Perot
(IFPT/*), enhanced isolated Fabry-Perot (EIFPT/*), or non-isolated (FPT/*) optical-return
transmitters
! User-friendly fiber management
! Standard gain models

2-2 Overview
SG1000 Split Third Port Installation and Operation Manual
Housing
The SG1000 optical node is furnished in an aluminum housing that protects the electronics from
weather and dissipates internally generated heat.
Figure 2-1 illustrates the SG1000 housing:
Figure 2-1
SG1000 housing dimensions — front and side view
9.80
16.13 Release tab 5.68
624
87
513
RF
1
RF
4
RF
2
RF
3
Coaxial cable connections to the housing are made with conventional 5/8 inch - 24-thread,
stinger-type connectors. For strand mounting, two clamps are located at the top of the housing
and are secured with 5/16 inch –18-thread stainless steel bolts.
Housing Lid
A spring-release tab is located on the hinge side of the lower housing half as illustrated in
Figure 2-1. It prevents sideways motion of the lid on the hinge pin when the node is open. You
can remove the lid without tools by pressing down on the release tab and sliding the lid to the
left.
Mounting Holes
Two threaded holes, separated by 9.96 inches center-to-center, are located in the back of the
housing on the horizontal center-line as illustrated in Figure 4-1. You can use these holes and
the bolts from the strand clamps for pedestal mounting. These holes are threaded to a depth of
0.55 inches.
Port Locations
The housing provides five cable connections (three RF ports and two optical-fiber ports). All
ports are protected by factory-inserted threaded plugs or plastic cap plugs. Discard these plugs
when you install the cable connectors.

Overview 2-3
SG1000 Split Third Port Installation and Operation Manual
Figure 2-2 illustrates a front and end view of the closed housing and the port locations:
Figure 2-2
Port locations
Fiber
input Fiber input
RF3
Base BaseLid
RF2
RF1
624
87
513
RF
1
RF
4
RF
2
RF
3
Gaskets
Each housing is equipped with a woven-wire RF gasket and a silicone-rubber weather gasket to
provide a seal between the housing base and lid. These gaskets provide efficient ground
continuity, RF shielding, and weather protection. Both gaskets must be in place and in good
condition to ensure proper operation and protection of the station. The weather gasket should be
lightly coated with silicone grease each time the node is opened. Replace this gasket if it
becomes damaged or deformed.

2-4 Overview
SG1000 Split Third Port Installation and Operation Manual
Figure 2-3 illustrates the housing gaskets:
Figure 2-3
Housing gaskets
PUSH
SG1000
Optical Transmitter
RETURN
INPUT JXP
RETURN INPUT
TEST POINT
ASSEMBLED
IN MEXICO
OPTICAL
POWER
TEST POINT
(1V/mW)
DANGER
O P T I C A L
O U T P U T
ASSEMBLED IN MEXICO
SG1-
RTN INPUTP JXP
TP2/3 -20dB
TP2/3 -20dB
JXP 2/3 3
H
L
2
P O R T 1
P O R T 2
TP1 -20dB
TOTAL P OWER
L
NOMINAL
-5 dBmV
1 V / m W
JXP 1
MONITOR
STATUS
RTN
MONITOR
STATUS
JXP 1
JXP 2/3
H
L
FWD
TP1 -20dB
S G 1 0 0 0
O p t i c a l N o d e
INPUT JXP
ICS
ICS
P O R T 3
REFER TO
MANU AL FOR
FUSE VAL UES
CAUTIO N:
CONTAI NS PARTS
AND AS SEMBL IES
SUSC EPTIB LET O
DAMAGEBY
ELECTROSTATIC
DISCHARGE(ESD)
-20 dB
1 V / m W
OPTICAL
INPUT
FUSE 3
FUSE 1
FUSE 2
FTEC
NO USER SERVICABLE
PARTS INSIDE
AC TEST POINT
24V 5V
SG1-PS
TEST
POINT TEST POINT
CAUTION
USE CA UTION WHE N MAKI NG
INTERNAL ADJUSTMENTS
WITHCOVERREMOVED
VOLTAGES IN EXCESS OF
300 VOLTS ARE PRESEN T
UND ER COVE R A ND MAY
BE PRESENT FOR SEVERAL
MINUTES A FTER POWER
IS REMOVED
SEE INSTALLATION MANUAL
FOR SERVICE
LO (60V)
HI (90V)
RF gasket
(woven wire)
Weather gasket
(silicone rubber)

Overview 2-5
SG1000 Split Third Port Installation and Operation Manual
Power Supply
The SG1000 power supply (SG1-PS) is located in the housing lid to optimize heat transfer and to
balance the thermal load between the base and the lid. An umbilical cord connects the SG1-PS
to the housing base.
A flexible power-distribution design enables you to power the node from any of the three RF
ports. Using fuses and shunts, you can configure the node to distribute power to the remaining
active ports.
The power supply includes a heavy-duty, gas discharge tube surge protector located on the
amplifier module. You can replace this surge protector with the optional FTEC surge protector.
The FTEC triggers at approximately 230 Vac and presents a short circuit to the line during
periods of overvoltage. After the ac input voltage returns to normal, the FTEC returns to its
open circuit state. This provides the node with a level of protection against surge currents on the
ac line.
Figure 2-4 illustrates the SG1-PS power supply:
Figure 2-4
SG1-PS power supply
NO USER SERVICABLE
PARTS INSIDE
AC TEST POINT
24V 5V
SG1-PS
TEST
POINT TEST POINT
CAUTION
USE CA UTION WHE N MAKI NG
INTERNAL ADJUSTMENTS
WITHCOVERREMOVED
VOLTAGES IN EXCESS OF
300 VOLTS ARE PRESEN T
UNDER COVER AND MAY
BE PRESENT FOR SEVERAL
MINUTES A FTER POWER
IS REMOVED
SEE INSTALLATION MANUAL
FOR SERVICE
LO (60V)
HI (90V)
SG1-PS
power supply Transponder
60/90 V
selector

2-6 Overview
SG1000 Split Third Port Installation and Operation Manual
Network Monitoring
The optional LIFELINE status monitoring system (LL-SG1) enables you to monitor the SG1000
from a headend or remote location. The LL-SG1 transponder is located in the lid, as illustrated
in Figure 2-4, and is connected to the electronics package (E-pack) with an umbilical cord.
The LIFELINE network monitoring system includes:
LL-CU control units These units are connected to the system at the headend and interrogate each
SG1000 field transponder with FM outbound and inbound transmissions. You can
select a variety of outbound and inbound frequencies depending on the system
configuration. The control unit reports this information to the status-monitor
computer.
Status-monitor
computer and
software
Includes an IBM®-compatible computer that is connected to the control unit LL-CU
through an RS-232 link. LIFELINE software enables you to view measurements
taken by the transponders.
LL-SG1-* field
transponders Installed in individual SG1000 nodes, this unit interfaces with the LL-CU at the
headend. It reports such parameters as: forward amplifier dc current draw and gain
control voltage, ac supply voltage, optical power at receiver input and transmitter
output, +24 V supply voltage and current, forward-path RF output level, and
management and control of RF ingress switching and tamper status.
Ingress Control
Two ingress control switches (ICS) provide return-path signal attenuation in the SG1000.
Attenuation is accomplished using the LIFELINE status-monitoring transponder (LL-SG1)
located in the lid next to the power supply. The status monitor transponder controls the ICS
through digital control lines. Using a downstream command through the LIFELINE
status-monitoring system, the return paths can be attenuated through the SG1000 by 6 dB or
by 40 dB. By adjusting the ingress switch from the headend, you can isolate the ingress source.
After you isolate an ingress source to the last possible node, you can shut the return path off at
that location to limit the impact of the ingress on the remainder of the network.
Configuration
To accommodate unique system criteria, the SG1000 is shipped as a configured product.
Hundreds of variations are available with configurations designed to address varied system
requirements including:
Optional features include:
! Fiber optic service cable
! Surge protection
! Chromate or epoxy housing finish
! SC/APC or FC/APC optical connectors
! Optical return transmitter
! Ingress Switching
! Network monitoring

Overview 2-7
SG1000 Split Third Port Installation and Operation Manual
The shipped configuration is noted in a label on the RF chassis cover illustrated in Figure 3-4.
Figure 2-5 illustrates the configuration notation:
Figure 2-5
Configuration notation
Key
75
87
Bandpass
750 MHz
870 MHz
Key
TThird Port Third port available
Key
N* Reserved Reserved for future use
Key
A
B
L
S
H
Tilt
6 dB
8 dB
10 dB
12.5 dB
14 dB
Key
N
B
D
H
I
J
Return Path Configuration
No transmitter
SG1-FPT/* (0.4 mW)
SG1-DFBT/* (1.0 mW)
SG1-DFBT3/* (2.0 mW)
SG1-DFBT/* w/ 0 dB pad
SG1-EIFPT/* (1.0 mW)
K SG1-DFBT3/* w/0dB Pad
Key
S
J
A
K
E
M
Bandpass Split
5-40 MHz/52-870 MHz
5-55 MHz/70-870 MHz
5-65 MHz/85-870 MHz
5-42 MHz/54-870 MHz
5-30 MHz/47-870 MHz
5-80 MHz/108-870 MHz
Key
A
B
RF Output Config
1 Output
2 Output
C
D1 Output High Gain 2 Output High Gain
Key
E
N
Ergonomics
Ergonomic unit
Non-ergonomic
Key
N
C
Service Cable
None
4 fiber service cable
Key
S
G
Technology
Silicon
GaAs
Key
N
F
Surge Protection
Surge protector
FTEC-BTA crowbar
Key
S
F
Connectorization
SC/APC
FC/APC
Key Status Monitor
N No status monitor
HLL-AM-HMS
A
B
C
D
LL-SG1/52-5.5
LL-SG1/*75-5.5
LL-SG1/*52-6.5
LL-SG1/*89-14.5
Key
N
C
Housing Finish
None
Chromate
EE-packonly
Key
N
S
A
Ingress Switch
No ingress switches
Ingress switches
0 dB pad
Key
N
A
B
Power Supply
Standard
90 volt jumper selected
220 volt power supply
Key
A
N
Special
25 amp fuses
Standard
SG1 75SS BSF SBN NNN NN TN*
N* N* E
* Reserved for future use
The current catalog may contain information not presented in this configuration diagram.

2-8 Overview
SG1000 Split Third Port Installation and Operation Manual
Forward RF Path
The receiver module is integrated within the E-pack. The receiver’s integrated optical hybrid
photo-detector improves RF performance over the entire 47 through 870 MHz passband. An
optical-power monitor circuit provides assessment of the fiber link status. The receiver module
is fully compatible with the status-monitor transponder enabling remote monitoring of key
module and link performance parameters.
A positive intrinsic-negative (PIN) attenuator, driven by an integrated thermal control circuit,
provides temperature compensation for the forward RF path.
An SG1000 distribution response correction (1DR) plug-in board follows the PIN attenuator and
is selected during configuration according to the 750 or 870 MHz requirements. It provides a
portion of the required slope characteristic. Plug-in forward equalizers located before each
output hybrid provide the remainder of the slope characteristic.
Each output stage uses a Silicon or GaAs power-doubled output hybrid. The diplex filters are
selected during configuration according to the preferred frequency split. You can change the
filters to accommodate different splits. You will also need to change the RPLPF in the return
transmitter.
The SG1000 can be factory configured for one or two outputs. If you require only one output, the
second RF output is not populated on the E-pack. To field upgrade a single-output node to a
dual-output node, contact your Motorola sales representative for the appropriate kit.
Port 1 is a dedicated node output in the SG1000. Where you install the furnished MB-JMP
jumper determines whether the other path feeds Port 2 or Port 3. The model MB-SP splitter and
model MB-DC/* directional coupler are available separately and provide an output at Port 2 and
Port 3. The MB-SP provides equal output levels, while the MB-DC/* provides one high-level port
and one low-level port. The high-level signal is routed to Port 2 or Port 3 and is based on the
MB-DC/*s orientation during installation. Figure 2-1 illustrates the port numbers identified on
the amplifier cover.
For each port, the status monitor transponder input is taken from the port one, forward RF
output, test point. A directional coupler is used to ensure that the operation of the RF output
test point is unaffected by the presence or absence of the status monitor. A new MCX connector
has been added before the return-path transmitter that enables the status monitor to inject its
output signal.

Overview 2-9
SG1000 Split Third Port Installation and Operation Manual
Figure 2-6 illustrates a dual-output, optical-return configuration using the SG1-DFBT/*,
DFBT3/*, IFPT/*, EIFPT/*, or FPT/* return-path transmitter:
Figure 2-6
SG1000 – dual-output, optical-return block diagram
25 dBmV @ 0.0 dBm Input, 79 channels, NTSC,ALM-9
19 dBmV @ -3.0 dBm Input, 79 channels, NTSC,ALM-9
Test point
(-20 dB)
Optical power
test point
(1.0 V/mW)
-2.0 dB 0.0 dB -1.0 dB
-4.5 dB -1.2 dB 27 dB high
19 dB std.
Fixed
Pad 1 DR
JXP
Optical
power
monitor
Rx OPSS
-1.5 dB
PIN atten
TC curve
generator Temp sensor
Driver
Port 3
Port 3
power
0.0 dB
0.0 dB
-3.75 dB
-1.0 dB
-1.0 dB
Silicon
Silicon
20.5 dB
20.5 dB
JXP FEQ
JXP FEQ
-1.5 dB
-1.5 dB
Rx OPSS
Tx OPSS
Test point
(-20 dB)
Jumper or
plug-in DC
Test point
(-20 dB)
-1.0 dB
-0.3 dB
-16 dB -1.0 dB
-16.0 dB
-0.5 dB
-1.0 dB
-0.5 dB
-1.0 dB
Port 2
power
Port 1
power
Port 2
Port 1
H
L
L
Status monitor
ingress control
-3.75
dB
0.0 dB
0.0 dB
JXP
JXP
-2.0 dB
-2.0 dB
Ingress
switch
Ingress
switch
Test point
(-20 dB)
Test point
(-20 dB)
-0.3 dB
-0.3 dB
H
SG1000 Return Path Transmitter Options
SG1-DFBT: 1 mW isolated distributed feedback
SG1-DFBT3: 2 mW isolated distributed feedback
SG1-EIFPT: 1 mW enhanced, isolated Fabry-Perot
SG1-FPT: 0.4 mW Non-isolated Fabry-Perot
SG1-IFPT: 0.4 mW isolated Fabry-Perot