Simulcast Hardware InstallationEquipment Inspection and Inventory
Equipment Inspection and Inventory
Motorola recommends that an inventory of all equipment is taken with a Motorola representative to ensure
that the order is complete. Carefully inspect all equipment and accessories to verify they arrived in good
condition. Promptly report any damag e d or missing i tem s to a Motor ol a repr esentative.
Placement Recommendations
The following are recommendations for placing equipment at a site:
•Secure each rack on a firm, and level floor.
•Use the correct mounting hardware to prevent rack movement.
•Use strain relief when instal lin g and positioning cables and cords to help
ensure that no interruption of service occurs.
•Allow at least 1 m (3 ft.) of space at the front and rear of the system to allow for
proper air flow, cooling, and safe access to equipment. The system components
require an ambient air temperature of 0º C to 50º C (32º to 12 2º F).
•Locate the site racks and other equipment with enough spacing to allow access f or service.
Service personnel require access to both the front and rear of the racks.
•Locate the system in an area that is free of dust, smoke, and electrostatic discharge (ESD).
•Ground the racks according to the Sta nda rds and Guidelines for
Communication Sites (68P81089E50).
Spacing Requirements
Proper spacing of equipment is essential for ready access to equipment, ease of maintenance, and safety of
personnel. Spacing requirements have been established to meet the National Fi re Protection Associations
(NFPA) Code, and the American Society of Heating, Refrigerating, and Air Conditioning Engineers
(ASHRAE) standards. Also, adhere to any local regulations that apply to spacing requirements.
See the Standards and Guidelines for Communication Sites (68P81089E50) for
details on these space requirements.
Weight Distribution Within a Rack
To avoid hazards or damage from uneven loading of a rack, distribute the weight of equipment
evenly in the rack, and consider the limitations of equipment and cables. When possible,
mount the heaviest components in the bottom of the rack.
68P81003Y71-O November 20022-9
Rack RequirementsChapter 2: Installin g the Simulcast Subsystem Hardw are
Rack Requirements
Most communications equipment is installed in a standard 48.26 cm (19-in.) EIA rack
or enclosed cabinet. Refer to the manufacturer’s instructions when installing racks or
cabinets, and installing equipment into the rack or cabinet.
Use all supplied bracing hardware when installing a rack or cabinet and secure
all equipment within a rack or cabinet.
If additional equipment needs to be installed, refer to the system design document prov ided by
the Field Engineer or consult the Motorola Field Representative.
Bonding and Grounding
Cabinets and equpment racks include a rack grounding bar (RGB) with the capacity to terminate
numerous solid or stranded 6 AWG copper ground wires, which are associated with internal metallic
or fiber optic cables and external grounding to power company equipment.
You must ground all doors of a metal cabinet by bonding the door to the main cab inet
using a 6 AWG (minimum) copper wire.
The RGB is shipped with dual-hole lugs to terminate 2 AWG ground wires. The minimum
number of dual-hole attachments is system dependent and is specified by the customer. This
bar provides electrical continuity between all bonds and ground wire with a cu rrent carrying
capacity equal to or exceeding that of a 6 AWG copper wire.
See the Standards and Guidelin es for Communication Sites (68P81089E50) for more
information on proper bonding and ground at a site.
Power Requirements
The Standards and Guidelines for Communication Sites (68P81089E5 0) defines the guid elin es
and requirements for cabinets, which house equipment that requires AC power input. Som e
of the guidelines and requirements are as follows:
•The cabinet is designed to accept 120/240 V, single-phase power with an amperage
service as required by the electronic equipment.
•Cabinets serviced by commercial power must be equipped with a nationally
recognized test laboratory (NRTL) certified power distribution panel that contains
a main circuit breaker or individual circuit breakers of the correct size as required
for the electronic equipment or specified by the customer.
2-10
•A decal showing an electrical schematic of the power wiring must be affixed
to the inside surface of the cabinet.
•All AC power equipment and electrical components must conform to National
Electrical Manufacturers Association (NEMA) and National Electrical Code
(NEC).ThesemustalsobelistedbyanNRTL.
•A surge protector, designed to protect equipment systems from surges at a 120/240 V
service and load center, must be placed on the pow er feed ahead of all individual load
center circuit breakers. This protector must be listed by an NRTL for the purpose intended.
•Selection of a surge pro tecto r is based on the susceptibility of the equipment
powered by the electrical service, with margin provided for locally generated
disturbances. See ANSI/IEEE C62.41 fo r more details.
•At least one 120 VAC, 15 A duplex convenience outlet equipped with ground fault
interrupter (GFI) protection must be provided in the electronic equipment compartment.
Table 2-2 lists the required wire gauges f or various installations. The “loop length” refers to
the combined length of the -4 8 VDC (hot) lead and the DC return lead. For example, a cabinet
installation that needs 16 feet of wire to reach the power supply rack has a total loop length
of 32 feet. For a standard installation, the equipment cabinet is located adjacent to the power
supply rack with a cable loop length l ess than 10.6 m (35 ft.).
Wire used for the cabinet power connection to the breaker panel shall not be less than 6 AWG. Total
cable loop (from the power supply rack breakers to the STR 3000 cabinet) voltage drop shall not
exceed 500 mV for the cabling of the -48 VDC (hot) lead and the DC return leads.
Some sites may require larger sizes than those noted in Table 2-2 to meet local codes. When larger cable
is u sed to run from a power source, the cable shall be “tapped down” to a smaller size fo r connection
to the STR 3000 breaker panel. In accordance with local code requirements, a properly sized electrical
box mounted on top of the STR 3000 rack cabinet or commercial tap cover is the point where the cable
size transition should take place. The site planner will specify the details of the transition.
When a “tapped down” connection is used, the total voltage drop between the “tapped
down” section and the main loop should not exceed 500 mV.
The screws that connect the power cables to the power supply rack are not provided and must be
locally procured. Power supply rack breaker panel screw size is 3/8-16 x 3/4.
Table 2- 2Power Connection Wire Gauge
Loop Length
15.3 m (50 ft.) or less
15.3to24.4m(50to80ft.)
24.4 to 36.6 m (80 to 120 ft.)
Antenna Requirements
All antenna feed line installations are to be made through a metal antenna entry plate that
is external to the site building. S e e the Standards and Guidelines for Communication Sites
(68P81089E50) for details on the requirements for antenna feed lines.
RF Antenna at the Co-Located Site
6AWG
4AWG
2AWG
Wire Gauge
Maximum Outer Diameter
of Cable
10.2 mm (0.40 in.)
10.2 mm (0.40 in.)
10.2 mm (0.40 in.)
The RF antenna provides a link between the prime and remote sites without introducing overload,
desensitivity, and intermodulation at a co-located site. You may need to install a fixed attenuator to the
antenna feed line at the site. The values for these attenuators can vary from site to site.
68P81003Y71-O November 20022-11
Transmit Antenna on the STR 3000 Simulcast Base Radio RackChapter 2: Installin g the Simulcast Subsystem Hardw are
Transmit Antenna on the STR 3000 Simulcast Base Radio Rack
One transmit cavity combiner can support up to 12 base radios per transmit antenna. It is possible to
combine the base radios into as few as two cabinets, if they are adjacent. To increase system reliability
and eliminate a single point of failure, use a minimum of two transmit antennas per site.
GPS Requirements
A simulcast subsystem uses two Global Positioning System (GPS) anten nas to provide a certain degree
of redundan c y in case one an tenn a is damaged or inadvertently shadowing. Mount the two antennas at
least 3.05 m (10 ft.) apart with an unrestricted aerial view down to within 10˚ of the horizon in all
directions. The antennas must also be mounted high enough to clear the peak of th e site roof.
Defining the Correct View for the Location
The hemispheric location of the site also affects installation of the GPS antennas. For systems in th e
northern hemisphere, mount the antennas to maintain a clear view of the southern sky. For systems in
the southern hemisphere, mount the antennas to maintain a clear view of the northern sky.
Avoiding Obstructions
Be careful to avoid adjacent structures (such as trees and buildings), which can obstruct the GPS
antennas with their w ide and soli d profiles. Mount the antennas to clear these types of obstructions.
However, an adjacent antenna tower that protrudes into the required view at a prime or remote site does
not obstruct the view and only has a minimal effect on reception from the GPS satellite.
Isolate the GPS antennas from any RF interference by mounting the antennas at least
12˚ hor izo ntal ly from other transmitting antennas.
GPS Antenna Line Loss
The maximum allowable line attenuation between the antenna and the TRAK 9100 GPS receiver is 10 dB.
This 10 dB figure includes a 4 dB margin for attenuation from foliage. So, in an installation in which there
is interference from foliage, allow for 6 dB line loss and 4 dB foliage attenuation . Installations in which
the antenn a has an unobstructed view of the sky may have a maximum line attenuation of 10 dB.
In a typical installation using 0.5-in. low density foam coaxial cable, the length of the cable run
should never exceed 45.72 m (150 ft.). This is sufficient for m ost installations.
When considering the use of larger cables, calculate the cable len gth s allowing 4.5 dB of loss at 1.5 GHz.
The remaining 1.5 dB of attenuation is provided by interior site cabling and connectors.
For more information on installation of the GPS antenna, see "Installing the Global
Positioning Satellite Antenna" on page 3-26.
One of t he major considerations in designing a site is how to maintain an environment in which the
equipment can operate efficiently. A properly designed heating, ventilation, and air co nditio ning (HVAC)
system provides the proper environmental conditions for the communications equipment.
Each manufacturer specifies an operating or ambient temperature for their equipment.
These t wo terms for temperature are de fined:
•Operating temperature refers to the temperature within the equipment case with
the equipment operating at a given capacity or load.
•Ambient temperature refers to the environmental temperature as typically measured
152 cm (5 ft.) above the floor in the center of an adjacent aisle.
For the specific environmental requirements for the equipment in a simulcast sub sy stem, see:
•Chapter 3,"Installing t he Prime Site (10Base-2)."
•Chapter 4,"Installin g the Prime Site (10Base-T)."
•Chapter 5,"Installing the Digital Simulcast Rem ote Site (10Base-2)."
•Chapter 6,"Installing the Digital Simulcast Remote Site (10Base-T)."
Expansion Considerations
Expansion cabinets or racks allow equipment to be added to a site. Each type of equipment has its
own specific cabinet or rack for installing additional devices. For example, install an expansion rack
to add STR 3000 Simulcast Base Radios to a site in the digital simulcast subsystem.
Each expansion cabinet or rack has its own requirements for installation. Detailed
information fo r expansions appear in "Installing the Expansion Cabinets" on page 5-10
and "Installing the Expansion Cabinets" on page 6-11.
Electrostatic Discharge
Electronic components, such as circuit boards and m em ory modules, can be extrem ely sensitive
to electrostatic disch arge (ESD). Motorola recommends that an antistatic w rist strap and a
conductive foam pa d be used when installing or upgrading the system.
If an ESD station is not available, wear an antistatic wrist strap. Wrap the strap around the wrist and
attach the ground end (usually a piece of copper foil or an alligator clip) to an electrical ground. An
electrical ground can be a piece of metal that literally runs into the ground (su c h as an unpainted
metal pipe) or the metal part of a grounded electrical appliance. An appliance is grounded if it
has a three-prong p lug and is plugged into a three-prong grounded outlet.
68P81003Y71-O November 20022-13
FCC RequirementsChapter 2: In stalling the Simulcast Subsystem Hardware
Do not use a computer as a ground, because it is not plugged in during installation.
FCC Requirements
Radio frequency (RF) transmitters installed at sites within the United States must be in
compliance with the following FCC regulations:
•Only persons holding a general class commercial radio telephone operator’s license
or non-licensed persons working under the immed iate supervision of licensed
operators can make adjustments to radio transm itters.
•The power input to t he final RF stage shall not exceed the maximum power
specified on the current station authorization.
•The frequency of the transmitter must be checked during initial installation of
the transmitter, when replacing modules, or when making adjustments that affect
the carrier frequency or modulation characteristics.
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 a gainst
harmful interference when the equipment is operated in a commercial en viron men t.
This equipm ent generates, uses, and can radiate radio frequency energy. If not installed properly and
used in accordance w ith the instruction manuals, the equipment 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 is required to correct the interference.
Electromagnetic Safety Requirements
2-14
This section describes information you need to know about working near electromagnetic energy.
68P81003Y71-O November 2002
Simulcast Hardware InstallationOSHA Related Safety Requirements
OSHA Related Safety Requirements
The United States Department of Labor, through the provisions of the Occupational Safety and Health
Act (OSHA ) of 1970, has established an electromagnetic energy safety standard that applies to the use
of this equipment. Proper use of this equipment will result in exposure below the OSHA limit.
Human Exposure Compliance for RF Energy
STR 3000 Simulcast Base Radios are designed to generate and radiate RF energy by means of
an external antenna. When terminated into a non-radiating RF load, the base radio equipment
is certified to comply with Federal Communications Commission (FCC) regulations pertaining
to human exposure of RF radiation in accordance with the FCC Rules P art 1 section 1.1310 as
published in title 47 code of federal regulations and procedures established in TIA/EIA TSB92, Reporton EME Evaluation for RF Cabinet E missions Under FCC MPE Guidelines.
Compliance to FCC regulations of the final installation should be assessed and take into account
site specific characteristics, such as type and location of antennas, as well as site accessibility of
occupational p erson nel (controlled environment) and general public ( unco ntrolled environment). This
equipment should only be installed and maintained by trained technicians. Licensees of the FCC
using this equipment are responsible for ensuring that its installation and operation comply with FCC
regulations Part 1 section 1.1310 as published in title 47 code of federal regulations.
Whether a given installation meets FCC limits for human exposure to radio frequency radiation
may depend not only on this equipment, but also on whether the “environments” being assessed are
being affected by radio frequency fields from other equipment, the effects of w hich may add to the
level of ex posure. Acco rd ingly, the overall exposure may be affected by radio frequency generating
facilities that exist at the time the licensee’s equipment is being installed or even by equipm ent
installed later. Therefore, the effect of any such facilities must be considered in site selection and
in determining whether a particular installation meets the FCC requirements.
FCC OET Bulletin 65 provides materials to assist in making determinations if a giv en facility is
compliant w ith the human exposure to RF radiation limits. Determining the compliance of transmitter
sites of v arious complexities may be accomplished by means of computational methods.
In general, observe the following guidelines when working in or around radio transmitter sites:
•Ensure that all p ersonnel have electromagnetic energy awareness training.
•Ensure that all personnel entering th e site are authorized.
•Obey all posted signs.
•Assume all antennas are active.
•Beforeworkingonantennas,notifyowners and disable appropriate transmitters.
•Maintain minimum of 1 m (3 ft.) clearance from all antennas.
•Do not stop in front of antennas.
•Use personal RF monitors while working near antennas.
•Never operate transmitters without shields during norm a l operation.
•Do not operate base station antennas in equipment rooms.
68P81003Y71-O November 20022-15
Installing the STR 3000 Base Radio RackChapter 5: Installin g the Digital Simulcast Remote Site (10Base-2)
Installing the STR 3000 Base Radio Rack
The STR 3000 Base Radio rack contains the R F channels and related components for a simulcast remote site.
The cables shipped with your system were sized for a specific racking
configuration. Swapping equipment within racks or from one rack to another can
put excessive strain on cables and cause cable failures. Do not install additional
equipment or devices into the rack as this may have a negative effect on the
thermal performance of the equipment and result in reduced safety or reliability.
Overview of the STR 3000 Base Radio Rack
The STR 3000 Base Radio is the RF portion of the 800 MHz, digital-only, simulcast remote
site infrastructure. The STR 3000 rack includes from one to six base radios, multicouplers,
combiner, isolator, junction panel, circuit breaker panel, and cabling in a single rack. This rack
provides the transmit and receive capabilities for the remote site.
The STR 3000 rack forwards digital voice and control packets from the comparator to the transmitter
and forwards digital voice and control packets from the receiver to the comparator.
Figure 5-2 shows the STR 3000 Base Radio rack with four base radios.
Figure 5-2STR 3000 Base Radio Rack with Four Base Radios
STR 3000 Rack Modules
Table 5-1 lists the hardware modules that comprise the STR 3000 rack.
68P81003Y71-O November 20025-5
Base Radio ModulesChapter 5: Installing the Digital Simulcast Remote Site (10Base-2)
Table 5-1STR 3000 Rack Modules
ModuleDescription
Breaker panelProvides on/off control and electrical overload protection to each module within the cabinet.
Cavity combinerActs as a band-pass filter, combines two to six transmit signals and places them on a s ingle antenna
port. The minimum channel spacing of the cavity combiner is 150 kHz.
Triple isolatorAllows RF to pass from the power amplifier to the combiner and a n tenn a while redirecting any
reflected energy from the antenna system away from the power amp and into a 50 ohm load.
Receive multicoupler (RMC)Supplies a port that takes the signal from the RX antenna and distributes the appropriate
information to each base radio in its rack.
Base radioHandles the transmit and receive functions for the rack through separate modules.
The cavity combiner, triple-through isolator, and receive multicoupler comprise
the Radio Frequency Distribution System (RFDS).
Base Radio M
Table 5-2Base Radio Modules
-48 V DC powe
ExciterProvides the transmitter and modulatio n functions for t he base radio in conjunction with
Power amplifier (PA)Provides the transmitter functi ons for the base radio in conjunction with th e exciter.
Base radi
ReceiverProvides the back end receive function.
o controller
odules
The base radio consists of different modules that handle the transmit and receive functions
for the rack. Table 5-2 lists these modules.
ModuleDescription
r supply
Figure 5-3 shows the layout for t he base radio modules.
Converts th
the power a
The PA acce
signal f or transmission via the RF output connector.
Provides
e -48 VDC input to the voltages required by the other base radio modules.
mplifier.
pts the low-level modulated RF signal from the exciter and amplifies the
signal processing and operational control for other b ase radio modules.
5-6
68P81003Y71-O November 2002
Simulcast Hardware InstallationInstalling the STR 3000 Base Radio Rack
Figure 5-3Layout of the Base Radio Modules
Installing the STR 3000 Base Radio Rack
The STR 3000 Base Radio Rack is shipped in a cabinet. To install this STR 3000 cabinet, prepare
the site and bolt the rack to the floor in t he location indicated on the site design drawings.
Placement of the Rack
Always use two or more persons and appropriate lifting equipment
whenever moving an STR 3000 rack. A fully configured rack weighs
approximately 360 kg (800 lbs). Death, serious personal injury, or
equipment damage can result if the rack tips over.
General suggestions for placing the rack are as follows:
•Secure the rack on a firm and level floor. Use the correct mounting hardware
to eliminate component movement.
•Use strain relief when installing and positioning cables and cords t o ensure
that no interruption of service occurs.
•Locate the STR 3000 cabinet where it can be serviced easily. Service people
require access to the front and the rear of the system.
•Locate the STR 3000 cabinet in an area that is free of dust, smoke, and debris.
•Maintain proper grounding and electrostatic discharge (ESD) precautions.
68P81003Y71-O November 20025-7
Installing the RackChapter 5: Installing the Digital Simulcast Remote Site (10Base-2)
•Maintain p ro per climate and heating, ventilation, and air conditioning (HVAC) controls.
The base radio and combiner unit weight exceeds 32 kg (70 lbs) and requires
two people to lift when removing the unit from the rack. To avoid injury,
fully support a unit when it is free from the mounting rails.
Installing the Rack
Perform Procedure 5-1 to install the STR 3000 rack.
Procedure 5-1How to Install the STR 3000 Rack
1
2
3
4Check to ens
5
Place the rack carefully in the designated area where it will be installed at the
remote site. See the site plan for the correct location.
Bolt the rack to the floor using the correct hardware for the type of installati on.
See the Standards a nd Guidelines for Communication Sites (6 8P81089E50) for
details on a rack installation.
Verify proper grounding of the rack.
ure all of the boards are properly seated in the site controller chassis.
Boards may have loo sen ed during shipping.
Connect power connections to the STR 3000 rack.
See "Connecting Power to the STR 3000 Rack" o n page 5-9 for more information .
Connecting the STR 3000 Rack to Ground
Connect each cabinet frame to the site master ground bar using a single dedicated 2 AWG ground w ire.
The site ground wire should drop into the top of each cabinet and be connected to the designated
grounding stud located at the junction panel at the top rear of the cabinet. Single hole lugs
(1.27 cm (0.5-in.) diameter) are used for these grounding connections.
Never use a bare or damaged wire for the connection of chassis ground or other
electrical wiring to prevent damage to equipment or potential injury to personnel.
5-8
68P81003Y71-O November 2002
Simulcast Hardware InstallationConnecting Power to the STR 3000 Rack
Do NOT daisy-chain multiple equipment cabinet grounds using a single ground
wire. Doing so increases the overall inductance of the ground wire w hich can
distribute surge energy among the cabinets instead of to the master ground bar.
See Standards an d Guidelines for Communications Sites (68P81089E50) for detailed
information on grounding the rack.
Connecting Power to the STR 3000 Rack
The STR 3000 rack requires a -48 VDC, which is provided by the DC power distribution.
Figure 5-4 shows the typical connections fo r power to the STR 3000 rack.
Figure 5-4Typical Power Connections for the STR 3000 Rack
Determining Power Connection Wire Size
Wire size recommendations contained herein reflect Motorola engineering requirements for
proper system operation. Local regulations should be adhered to and will supe rsede any
other specifications in this manual, where applicable.
Donotusewiresmallerthan16mm2CSA(5AWG).Cableloopvoltagedrop
must not exceed 500 mV for cabling of the -48 VDC and DC return leads.
68P81003Y71-O November 20025-9
Installing the Expansion CabinetsChapter 5: Installing the Digital Simulcast Remote Site (10Base-2)
For a standard installation, the equipment cabinet is located adjacent to the power supply
equipment with a cable loop length less than 10.67 m (35 ft.).
The “loop length” refers to the combined length of the -48 VDC lead and the DC return lead.
For example, a cabinet which needs 4 .87 m (16 ft.) of wire between the power supply equipment
and equipment cabinets has a total loop length of 9.75 m (32 ft.).
Table 5-3 lists the required wire sizes for various installations.
Table 5-3Power Connections Wire Size
Loop Length
15.2m(50ft.) orless16mm
2
CSA (5 AWG)
15.2 - 24.8 m (50 - 80 ft.)25 mm2CSA (4 AWG)
24.8 - 36.6 m (80 - 120 ft.)35 mm2CSA (2 AWG)
Installing the Expansion Cabinets
If an expansion cabinet is required, the expansion cabinet must be located to the right of the prime cabinet
e Figure 5-5). The two cavity combiners are connected to their respective side of the phasing harness.
(Se
The phasing harness bracket for the transmit combiner is mounted to the expansion rack. The power
monitor unit (PMU) is connected to the post filter, which is connected to the top of the phasing harness.
Wire Size
5-10
68P81003Y71-O November 2002
Simulcast Hardware InstallationInstalling the Expansion Cabinets
Figure 5-5Placement of Expansion Cabinets
68P81003Y71-O November 20025-11
Cabling the STR 3000 Base Radio RackChapter 5: Installing the Digital Simulcast Remote Site (10Base-2)
Cabling the STR 3000 Base Radio Rack
The components of the STR 3000 Base Radio rack are shipped as one unit and do not require separate
cabling during the initial installation. For more information on how to cable each component within
the rack, see Volume 8, Field Replaceable Units and Entities (68P81004Y55).
From the rack, make the following connections to the system:
•"Connecting the Ethernet Cables" on page 5-12
•"Connecting the Transmit Cables" on page 5-13
•"Connecting the Receive Cables" on page 5-14
•"Connecting the V.24 Cabling" on page 5-16
•"Connecting Cables for a Co-Located Rem ote Site" on page 5-17
Connecting the Ethernet Cables
Table 5-4 lists the Ether net connections from the STR 3000 rack to the system.
Table 5- 4Ether net Connections from the STR 3000 Rack
From STR 3000 Rack
Port
Ethernet Ou t port
on the junction
panel in the f
cabinet
Ethernet Out
port on the
junction panel
in succeeding
cabinets
Ethernet Ou t port
on the junc
panel in the last
cabinet
irst
tion
Connector
Typ e
BNC
BNC
BNC with 50 ohm
terminati
on
Both ends of the Ethernet cabling for a rack must be terminated.
Port1onHub
Ethernet out on
preceding panel
Terminator on
Ethernet O
Destination Device
Port
ut
Connector
Typ e
RJ45
RJ45
BNC
Description
Ethernet LAN connection
Ethernet LAN connection
LAN termination
5-12
68P81003Y71-O November 2002
Simulcast Hardware InstallationConnecting the Transmit Cables
The DLN1269A base radio controller module can be configured for both 10Base-2
and 10Base-T operation. The site m ust be all 10Base-2 or all 10Base-T. You
cannot m ix configurations within a site.
Connecting the Transmit Cables
Table 5-5 lists the transmit connections from the STR 3000 rack to the system.
For more detail on internal cabling, see Volume 8, Field Replaceable Unitsand Entities (68P81004Y55).
Table 5-5Connectio ns for the Transmit Cables
From STR 3000 Rack
Port
Transmit an
tenna
gure 5-6 s ho ws the transmit cabling layout for a six-channel STR 3000 Base Radio rack.
Fi
Connector
Type
7/16 DIN N Ty
pe
Destination
Port
Antenna
Device
Connector
Type
7/16 DIN N Ty
pe
Transmit ou
the transmit antenna.
Description
tput from the STR 3000 to
68P81003Y71-O November 20025-13
Connecting the Receive CablesChapter 5: Installing the Digital Simulcast Remote Site (10Base-2)
Figure 5-6Transmit Cabling in the STR 3000 Rack
Connecting the Receive Cables
Table 5-6 lists the receive connections from the system into the STR 3000 rack.
5-14
68P81003Y71-O November 2002
Simulcast Hardware InstallationConnecting the Receive Cables
Table 5-6Connections for the Receive Cables
From STR 3000 Rack
Port
Rx In (Signal IN
on figure)
Figure 5-7 shows the receive cable connections for the STR 3000 rack.
Fig
Destination Device
Connector
Type
Port
Connector
Type
Description
7/16 DIN N TypeReceive antenna7/16 DIN N TypeReceives antenna input into the
STR 3000 rack
ure 5-7Receive Cabling in the STR 3000 Rack
68P81003Y71-O November 20025-15
Connecting the V.24 CablingChapter 5: Installing th e Digital Simulc ast Remote Site (10Base-2 )
Connecting the V.24 Cabling
Table 5-7 lists the V.24 audio connections for the STR 3000 rack.
Table 5-7V.24 Cable Connections
From STR 3000 Rack
Port
Port PNL 1
Port PNL 2
Port PNL 3
Port PNL 4
Port PNL 5
Port PNL 6
Figure 5-8 shows the V.24 cabling layout for a six-channel STR 3000 rack.
Destination De
Connector
Typ e
Port
RJ45 (V.24)Channel Bank 1
SRU Port 1
RJ45 (V.24)Channel Bank 1,
SRU Port 2
RJ45 (V.24)Channel Bank 1,
SRU Port 3
RJ45 (V.24)Channel Bank 1,
SRU Port 4
RJ45 (V.24)Channel Bank 1,
SRU Port 5
RJ45 (V.24)Channel Bank 1,
SRU Port 6
vice
Connector
Typ e
,
RJ45 (V.24)Connection to
the prime site.
RJ45 (V.24)Connection to the prime site.
RJ45 (V.24)Connection to the prime site.
RJ45 (V.24)Connection to the prime site.
RJ45 (V.24)Connection to the prime site.
RJ45 (V.24)Connection to the prime site.
Description
5-16
68P81003Y71-O November 2002
Simulcast Hardware InstallationConnecting Cables for a Co-Located Remote Site
Figure 5-8V.24 Cabling in the STR 3000 Rack
Connecting Cables for a C o-Located Remote Site
A co-located remote site is installed along with the prime site or very near to i t. This allows the co-located
remote site to connect directly into the prime site and use the same network structures.
Connect the cables listed in Table 5- 8 from the STR 3000 rack at a co-located remote site:
•Ethernet cables
•Transmit cables
•Receive cables
68P81003Y71-O November 20025-17
Powering Up the STR 3 00 0 Base RadioChapter 5: Installing the Digital Simulc ast Remote Site (10Base-2)
Table 5- 8Cabling Connections from the STR 3000 Rack at a Co-Located Remote Site
From STR 3000 Rack
Port
Ethernet In port
on junction pa
in the first cabinet
Ethernet In port on
the junction panel
of succeeding
cabinets
Last cabinetBNC with 50 ohm
Top of cabinet7/16 DIN N TypeTransmit antenna7/16 DIN N TypeTransmit output from the base radio to
Top of cabi
nel
net
Connection
Typ e
BNC
BNC
termination
7/16 DIN N T
Both ends o
Port1onHub
Ethernet out on
panel
Terminator on
Ethernet Out
ype
Receive an
f the Ethernet cabling run must be terminated.
Destination Device
Port
tenna
Connectoin
BNC
BNC
BNC with 50 ohm
termination
7/16 DIN N T
Typ e
Ethernet LAN connection
Ethernet LAN connection
Ethernet LAN connection
the transmit antenna
ype
Receive an
STR 3000 rack
Description
tenna input into the
Powering
Press the ON/OFF switch on the front of the power supply to apply power to the base radio. As
the radio
Table 5-9 lists the LEDs, their correspondin g functions, and the indications provided by various blinking states.
Up the STR 3000 Base Radio
powers up, the LEDs on the front panel display the following activity:
•All LEDs initially blink.
•The SlnD LED blinks, indicating the software is initializing.
•After ab
power is on and the V.24 link is established.
out 10 seconds, the V.24 and ON LEDs stay green, indicating that the
5-18
68P81003Y71-O November 2002
Simulcast Hardware InstallationStatus Priorities for Multifunction LEDs
Table 5-9LED Status Indicators on the Base Radio
LED Name
Station
Operational
(ON)
Station Failure
(Fail)
Service/Tx Inhibit
(SVC)
Control
(CTL)
Rx Active
(Rx)
PA Full/PA Low
(PA)
Station Disable
(StnD)
V. 2 4 L i n k
(V24)
ColorSolid
Green
RedFRU failure• Ext Ref Failure
YellowN/AServiceSVC Tx InhN/A
Green
Green
Green
Red
Green
AllN/AN/AN/A
Control ChFailsoftN/A
Rx ActiveIllegal RxN/AN/A
PA ActiveN/AN/AN/A
FLASH
V24 LinkV24 FailN/AN/A
Blinks Once per
Second
• Rx Tx Unlock
N/AN/AN/A
Blinks Twice
per Second
ConfigN/A
Blinks off 1/4
ISP Rx
Solid Then
Second
Status Priorities for Multifunction LEDs
Some LEDs p erform multiple functions for the base radio. Table 5-10 lists these LEDs
and the order in which status indications are handled.
Table 5- 1 0Status Priority for Multifunction LEDs
Multifunction LED
Fail• FRU failure
• External reference failure and unlock
• Base radio operational mode
SVC
StnD
• Transmitter inhibited
• Base radio operational mode
• Software download
• PA inhibited
• Receiver inhibited
General Operating Specifications
This section provides specifications for the STR 3000 rack, base radio, RFDS,
transmitter, receiver, and receiver multicoupler.
Priority of Status
(Highest to Lowest)
68P81003Y71-O November 20025-19
Operating Specifications for the Base RadioChapter 5: Installing th e Digital Simulc ast Remote Site (10Base-2 )
Table 5-11 lists the operating specifications for an S TR 3000 rack.
Table 5-11General Operating Specifications for the STR 3000 Rack
Specification
Number of Channels
Number of Cabinets
Cabinet Height211 cm (83 in.) (48 RU)
Footprint ( W x D)60 x 60 cm (24 x 24 in.)
SystemWeight361kg(795lb)
Power Requirements-48 VDC (43-60 VDC)
Temperature Range
Power Co nsum ptionTypical: 2,700 W
Antenna Connectors
erating Specifications for the Base Radio
Op
Table 5-12 lists the operating specifications for the base rad io.
1-6
1
0to50˚ C(32to+122˚ F)
Maximum: 3,200 W
Transmitter: DIN 7/16 Female
Receiver: N-Female
Value or Range
5-20
68P81003Y71-O November 2002
Simulcast Hardware InstallationOperating Specifications for the Transmitter
Table 5- 1 2Operating Specifications for the Base Radio
Specification
DimensionsHeight: 22.2 cm (8.75 in.) (5 RU)
Width: 48.3 cm (19 in.)
Depth: 41.9 cm (16.5 in.)
Weight33 kg (73 lb)
Operating Temperature Range0 to 50˚ C(32to+122˚ F)
Power Requirements-48 VDC (41-60 VDC)
Power Dissipation530 W (typical)
640 W (maximum)
Heat Dissipation2,160 Btu maximum for 1 base radio 12,240 Btu
maximum for 6 base radios
See Table 5-17 for average heat dissipation for each base
radio.
Rack Spacing• Designed for mounting in an EIA /T IA standard 19-in.
(48.26 cm) rack
• Minimum of 15.24 cm (6 in.) between the cabinet
and the wall
• With doors, minimum of 53.34 cm (21 in.) is required
to open the back door.
Value or Range
Because of weight considerations, the
installation should allow access to the rear
of the unit.
perating Specifications for the Transmitter
O
Table 5-13 lists the operating specifications for a transmitter.
68P81003Y71-O November 20025-21
Simulcast Hardware InstallationInstalling the TRAK 9 1 00 Simu lcast Site Referen ce
Table 5- 1 8Operating Specifications for the Tower Top Amplifier
Installing the TRAK 9100 Simulcast S ite Reference
e T RAK 9100 provides a composite 5 Mpps and 1 pps signal u sed for timing at a remo te site. This
Th
section describes how the TRAK 9100 simulcast site reference is installed at a remote site.
Overview of the TRAK 9100 Simulcast Site Reference
imulcast system uses signals fr om the Navstar Global Positioning Satellite (GP S) system to
As
synchronize the audio from multiple transmitters. A GPS receiver needs to receive the 1 pps signal
from at least four satellites before it can establish its exact geographical location.
The T RA K 9100 uses the satellite signal to derive a high-precision 1 pps signal used in the simulcast
ystem for time launching. By launching signals at exactly the same time from multiple sites, destru ctiv e
s
interference of the transmitted signals in overlap areas is minimized. In addition to controlling the
launch, the use of GPS allows for variance in delay of the distribution network (T1/E1).
The TRAK 9100 simulcast site reference provides 1 pps and 5 Mpps reference signals
or the following com ponents at a remote site:
f
•Base radios
•Remote site channel bank
Remote site hub
•
igure 5-9 shows the modules and con nections on the front view of the simulcast site reference.
F
68P81003Y71-O November 20025-25
Hardware Modules in the TRAK 9100 Simulcast Site ReferenceChapter 5: Installing the Digital Simulcast Remote Site (10Base-2)
Figure 5-9Front View of the TRAK 9100 Simulcast Site Reference
Hardware Modules in the TRAK 9100 Simulcast Site Reference
Table 5-19 lists the modules that comprise the TRAK 9100 sim ulcast site reference.
Table 5-19TRAK 9100 Simulcast Site Reference Modules
ModuleDescription
Antenna
GPS Receiver (A1)This module contains a crystal oscillator and generates the 1 pps
GPS Receiver (A2)A second oscillator is included for redundancy. (Module A2 does
Power SupplyConverts A C input to DC voltages used by all other TRAK 9100
Frequency Distribution
Module
Fault Sense Un itDetects system failures and provides control, alarm, and status
See "Installing the GPS Antenna" on page 5-27.
and 5 Mpps reference signals based on received GPS tim ing signals.
not include a front-panel cooling fan like Module A1.)
modules.
Outputs the 1 pps and 5 Mpps reference signals along with
composite signal.
information.
Installing the TRAK 9100 Simulcast Site Reference in the Rack
5-26
The TRAK 9100 simulcast site reference is installed in an EIA/TIA 19-in. (48.26 cm) rack.
68P81003Y71-O November 2002
Simulcast Hardware InstallationGrounding the Chassis
Grounding the Chassis
Connect the grou nding cable to the ground lug . The ground lug is a screw on the back of
the power supply located to the left of the AC power receptacles.
Use 6 AWG wire and the appropriate lug connected to chassis ground through to the RGB.
Wiring for Power
The two AC outlets on the rear of the panel provide power to all of the modules in the TRAK 9100.
Installing an Expansion Rack
See "Installing TRAK 9200 Simulcast Site Reference for Expansion" on page 5-31.
Installing the GPS Antenna
The GPS antenna feeds the TRAK 9100 simulcast site reference, which provides a 5 Mpps/1 pps signal (5
Mpps signal at 1 pps repetition rate) to the base radios and other com ponents at the remote site. This
signal establishes timing functions for the transmit and receive frequencies for the base radios.
Perform Procedure 5-2 to install the GPS antenna.
Procedure 5 -2How to Install the GPS Antennas
1Mount the GPS
the horizon in all directions.
2
3Isolate the
4
Mount the antennas high enough to clear the peak of the site roof using the
following guidelines:
• For systems in the northern hemisphere, mount the GPS antennas so that a
clear view of the southern sky is maintained.
• For systems in the southern hemisphere, mount the GPS antennas so t hat a
clear view of the northern sky is maintained.
distance of at least 3.66 m (12 ft.) horizontally from the other antennas.
Mount the GPS antennas to clear obstructions and provide a clear path.
antenna with an unrestricted aerial down view to within 10˚ of
GPS antennas from RF interference by mounting the antennas at a
Adjacent structures (such as trees or buildings) are considered
obstructions due to their wide and solid profiles.
Adjacent antenna towers at the RF site which protrude into the
required view (but have a minimal effect on GPS satellite reception
due to their narrow, largely open profiles) are not considered
obstructions.
68P81003Y71-O November 20025-27
GPS Antenna Line LossChapter 5: Installin g the Digital Simulcast Remote Site (10Base-2)
The simulcast system will not operate properly if the GPS receiver is not locked onto at
least four GPS satellites. The four satellites are used to establish a three-dimensional
fix (latitude, longitude, and altitude) for the site.
The TRAK 9100 will free-run for a time period defined by configuration settings. However,
after the specified period whil e still operating without the GPS satellite sig nals, the simulcast
system will not operate. The GPS antennas must be properly positioned, and the cables and
connectors m ust be properly maintained to ensure operation of the simulcast system.
If the TRA K 9100 is powered down, the simulcast system will not operate properly until
the GPS receiver has locked onto the signals from at least four GPS satellites. This
process takes approximately 13 to 25 minutes to complete.
GPS Antenna Line Loss
Cutting the cable below a recommended minimum length can
cause problems with signal strength overload. Refer to Appendix
E in the TRAK 9100 Reference book.
The maximum allowable line attenuation between the antenna and the TRAK 9100 is 6 dB . This
includes a 4 dB m argin fo r attenuation fro m foliage. Installations in which the antenna has an
unobstructed view of the sky may have a maximum line attenuation of 10 dB.
In a typical installation using 0.5-in., low density foam coaxial cab le, the length of th e cab le run
should never exceed 45.72 m (150 ft). This is sufficient for most installations.
When considering the use of larger cables, calculate the cable len gth s allowing 4.5 dB of loss at 1.5 GHz.
The remaining 1.5 dB of attenuation is provided by interior site cabling and connectors.
GPS Antenna Operating Specifications
Table 5-20 lists the operating specifications for the GPS antenna.
Table 5-20Operating Specifications for the GPS Antenna
Specification
Physical DimensionsDiameter: 8.89 cm (3.5 in.)
Height: 10.16 cm (4.0 cm)
Value or Range
Weight0.32 kg (0.7 lb ) (excluding mast)
Operating Temperature-40º to +85º C (-40º to 185º F)
5-2868P81003Y71-O November 2002
Simulcast Hardware InstallationALARM INDICATION (NO LOCK O N GPS SIG NAL )
ALARM INDICATION (NO LOCK ON GPS SIGNAL)
A system alarm indicates w hen the GPS signal cannot be located and that the
antenna may need to be repositioned.
Cabling the TRAK 9100 Simulcast Site Reference
All output signal connections interfacing to the network are made via the rear panel. The connections are:
•Two power supply (AC or DC) connectors
•Two GPS antenna N-type connectors
•An RJ45 connector for 10Base-T to distribute Coordinated Universal Time
(UTC) through Network Time Protocol (NTP)
•An RJ45 connector for Alarm (relay contacts) reporting
•A DB9 connector for Time of Day (TOD) output
•An RS232 DB9 connector for d iagn ostics (VT100)
•An IEEE-488 connector for digital distribution unit (DDU) TRAK 9200
MHz if desired) outp uts depending on the type of modules plugged at the front panel.
All cables are connected between the BNC T-adapters, which are mounted
to the appropriate module connector.
The cabinet is equipped with cables (index no. 2) and T-adapters for connection to six base
radios regardless of BR complement. Unu sed T-adapters are left unconnected.
Unless the cabinet is to be used with other RF cabinets, 5 MHz/1 pps OUT
connector must be terminated with a 5 0 ohm terminator.
Table 5-21 lists all of the cables from the front connection s on the TRAK 9100 simulcast site reference.
Table 5-22 lists the cables from the connections on the back of the TR AK 9100.
68P81003Y71-O November 20025-29
Powering Up the TRAK 9100 Simulcast Site ReferenceChapter 5: Installing the Digital Simulc ast Remote Site (10Base-2)
Table 5- 2 1Cabling from the Front Connections on the TRAK 9100 Simulcast Site Reference
From TRAK 9100Destination Device
Port
Connector
Typ e
Port
Connector
Typ e
Description
AC Inpu t AIEC 320
AC Inpu t BIEC 320
Ethernet IN
Ethernet IN
Table 5- 2 2Cabling from the Rear Connections on the TRAK 9100 Simulcast Site Reference
From TRAK 9100Destination Device
Port
10Base-T10Base-T
RS232 I/O
Reference Output24-pin DDigital
RJ45
RS-232
Connector
Typ e
J45)
(R
RS232MOSCAD N FM 2
Power O ut let
Power O ut let
Port 6 on the
Remote Si te L
switch
Port 2 on the
MOSCAD NFM
Port
mote Site
Re
LANSwi Port 5
Port 2
istribution Unit
D
(DDU) (where
used)
PowerAC Power
PowerAC Power
RJ45
AN
RS-232
Connector
Typ e
10Base-T
J45)
(R
RS232
Path for the NTP data
Path for diagnostic information to
MOSCAD
Description
P information
NT
Diagnostic information routed to
MOSCAD
Output to DDU
Powering Up the TRAK 9100 Simulcast Site Reference
The TRAK 9100 has the following three power outputs:
•+5 VDC
•+15 VDC
•-15 VDC
All three outputs have an LED indicator that turns green after the TRAK 9100 powers
up. Figure 5-10 show s the power supply LEDs.
5-30
68P81003Y71-O November 2002
Simulcast Hardware InstallationOperating and Environmental Specifica tions
Figure 5-10Power Supply Module with LED Indicators
Operating and Environmental Specifications
Table 5-23 lists the operating a n d environmental specifications for the TRAK 9100 simulcast site reference.
Table 5- 2 3TRAK 9100 Operating and Environmental Specifications
Specification
Physical DimensionsHeight: 13.34 cm (5.25 in.) (3U)
Width: 48.26 cm (19 in.)
Depth: 38.1 cm (15 in.)
WeightApproximately 11.34 kg (25 lb) with all modules installed
Operating Temperature–30˚ to +60˚ C(-22˚ to 140˚ F) with a rate of change <2˚
C/minute (<3.5˚ F/minute)
Power Requirements100 to 240 VAC ± 10%, 48-63 Hz single-phase
Heat Dissipation120 W at power-up, tapers to approxim ately 80 W within
15 minutes of power-up at 25˚ C(77˚ F)
Value or R
ange
Installing TRAK 9200 Simulcast Site Reference for Expansion
The TRAK 9200 is the optional e x pansion chassis which adds simulcast s ite reference ports.
It provides 56 ports, arranged in four rows of 14 ports each.
68P81003Y71-O November 20025-31
Overview of the TRAK 9200 Simulcast Site ReferenceChapter 5: Installing th e Digital Simulc ast Remote Site (10Base-2 )
Overview of the TRAK 9 200 Simulcast Site Reference
The TRAK 9200 simulcast site reference differs from the TRAK 9100 simulcast site reference with
respect to two modules: the power supply and the term ination/fault logic unit.
The power supply has only one output (5 VDC). So the indicators differ from those referen ced in "Po w ering
Up the TRAK 9100 Sim ulcast Site Reference" on page 5-30. There are only two indicators, as follows:
•Green, indicating the 5 VDC power supply is operating properly.
•Red, indicating a fault with the power supply.
The fault logic unit serves the same function as the fault sense unit in the TRAK 9 100 .
Figure 5-11 shows the rear view of the TRAK 9200.
Figure 5-11Rear View of TRAK 9200
Cabling the TRAK 9200 Simulcast Site Reference
Table 5-24 lists the cabling for the TRAK 9200 simulcast site reference expansion.
Table 5-30 lists the operating and environmental specifications for the r emote site hub.
Table 5- 3 0Remote Site Hub Operating and Environmental Specifications
Specification
Physical DimensionsHeight: 4.32 cm (1.7 in.) (1 RU)
Width: 44.1 cm (17.4 in.)
Depth: 17.0 cm (6.7 in.)
Weight2.1kg(4.6lb)
Operating Temperature0˚ to 50˚ C(32˚ to 122˚ F)
Power Requirements85-244 VAC 50/60 Hz 1 20 W
Heat Dissipation103 Btu/Hour
Value or Range
Installing the Simulcast Remote Site Router
e remote site router routes network managem ent traffic from a simulcast remote site to the prime site.
Th
verview of the Simulcast Remote Site Router
O
The simulcast remote site router routes network management information from the remote
ite to the prime site through the High Speed Unit (HSU) card.
s
igure 5-20 and Figu re 5-21 respectively show the fron t and rear views of the simulcast remote site router.
F
Figure 5-20Front View of the Simulcast Remote Site Router
68P81003Y71-O November 20025-43
Installing the Simulcast Remote Site RouterChapter 5: Installing the Digital Simulcast Remote Site (10Base-2)
Figure 5-21Rear View of the Simulcast Remote Site Router
Installing the Simulcast Remote Site Router
This section describes how to install the simulcast remote site router.
Grounding the Chassis
Some network topolo gies require a grounding stud, which is separate from the AC ground
on the chassis of the networking eq uipment. If this type of grou nding is required for the
topology, perform Procedure 5-6 to connect the chassis ground.
Procedure 5-6How to Connect a Chassis Ground
1Term in ate o
2
3
Using a grounding screw, attach the lug to the rear of the chassis.
Terminate the other end of the wire on a permanently connected protective grounding conductor
or RGB.
ne end of a len gth of minimum 6 AWG wire with a compression lug.
Wiring for Power
Power is provided to the simulcast remote site router by connecting a power cable to
the power receptacle on the rear of the unit.
Cabling the Simulcast Remote Site Router
Table 5-31 lists the cable connections from the simulcast remote site router.
5-44
68P81003Y71-O November 2002
Simulcast Hardware InstallationPowering Up the Simulcast Remote Site Router
Table 5-31Cable Connections from the Simulcast Remote Site Router
From Remote Site Router
1
Connector
Type
Remote Site Hub
Remote Site
Switch
AN
Channel Bank60-pin FlexW
not used
not used
nal, Serial
Attach the p ower cable to the power receptacle.
Port
LAN 1RJ45
LAN 2RJ45
Serial 360-pin FlexW
Serial 460-pin FlexWANChannel Bank60-pin FlexWANEthernet connection between the hub
WAN 5RJ 45
WAN 6RJ 45
ConsoleRS232/DB9Console/Termi-
owering Up the Simulcast Remote Site Router
P
Perform Procedure 5-7 to power up the simulcast remote site router and verify that it is working.
Procedure 5-7How to Power Up the Simulcast Remote Site Router
Destination Device
Port
Port
Connector
RJ45
RJ45
RJ45
RJ45
RS232/DB9Communications connection between
Type
Description
Ethernet connection only for co-located
Ethernet connection between the hub
and the prime site switch
AN
Ethernet con
and the channel bank
and the channel bank
not used
not used
the router a
nection between the hub
nd a console or terminal
2
3
4
The power-up process takes a few seconds. When the process has successfully completed, the
LEDs on the fro nt panel should be on o r off, as described in Table 5-32.
Plug the power cable into the AC outlet.
Turn the power switch to the ON position.
Verify that the power LED is on.
68P81003Y71-O November 20025-45
Operating SpecificationsChapter 5: Installin g the Digital Simulcast Remote Site (10Base-2)
Table 5-32LED Status at Successfu l Startup
LED
LAN
Link
ActiveOn or blinking
FaultOff
FlexWAN SERIAL
Link
Active
FaultOff
SYSTEM
Status
FwdOff or blink
Power/Fault
RunOn
LoadOff
Test
On
On
On
All off
ing
Green
Off
Status
Operating Specifications
Table 5-33 lists the oper a tin g specifications for the simulcast r emote site router.