Nokia Solutions and Networks T7GT1 2.5GHz DIVERSITY ACCESS POINT User Manual USERS MANUAL 3 OF 4

Nokia Solutions and Networks 2.5GHz DIVERSITY ACCESS POINT USERS MANUAL 3 OF 4

USERS MANUAL 3 OF 4

Cable Descriptions Chapter 3: Cable Descriptions
Cable Descriptions
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Overview
This chapter provides the descriptions of the site cabling.
Procedures for routing cables (through metallic or conductive conduit) to the outdoor equipment
are found in Chapter 4 Access P oint Hardware Installation .
Cabling is one of the most noticeable aspects ofworkmanship. Straight runs and
proper turns are critical fora positive evaluation of the work.
Congurations Supported
This chapter supports cable installation for 3 and 4 sector configurations.
Cable Installation Order
1. Ground Cabling
2. P ower Cabling
3. Antenna Cabling
4. RGPS or RF GPS Cabling
5. Ethernet Cabling
6. Fiber Optic Cabling
7. Customer Defined Input/Output Cabling
Cable Labels
Refer to T able 3 -1 for the labels used to identify the cables that will be shown in illustrations
throughout this chapter .
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Access P oint Hardw are Installation Cable Descriptions
Cable Descriptions and Part Numbers
T able 3 -1 gives the cable descriptions and part numbers of the various cables that will connect
to the Base Control Unit (B CU) and RF head.
Table 3 -1 Cable Description and P art Numbers
Cable Qty
Part Number Description
A
2
Customer Supplied Ground cable, 6 A WG or larger , insulated copper
wire. Requires one two-hole lug connectors.
B
2–8 3089492T02
Antenna Cable, 300 mm (1 ft.)
C 1 T472AA
RGPS cable, 15 m (50 ft.)
T472AB
RGPS cable, 38 m (125 ft.)
T472AC
RGPS cable, 76 m (250 ft.)
T472AD
RGPS cable, 152 m (500 ft.)
T472AE
RGPS cable, 304 m (1000 ft.)
T472AF
RGPS cable, 608 m (2000 ft.)
C1 1 SGKN4386
Punch block to CBIO Board, 15 pin D -connector on
one end and loose wires on the other end. Cable is
Motorola P/N 3086433H12.
D
1 SGRG4030A
CGDSGPSKITF4NM50
Assembly , Receiver , GPS , RF Module
Antenna, GPS , with mounting and 50 ft.
cable.
E
2
Customer Supplied AC P ower Cable, 10 A WG , copper
F
1 SGLN6414A
Assembly , Installation, Installation HDW Pkg B CU
G 1–4 3089298C01 — 05
RF Head DC P ower Cable
H
1–4 3089843T01 —05
Fiber Optic Cable
J
6
Customer Supplied Ethernet cables, RJ-45 connectors, straight
K
1 SGRG4030A
CGDSGPSKITF 4NM50
Assembly , Receiver , GPS , RF Module
Antenna, GPS , with mounting and 50 ft.
cable.
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Cable Descriptions Chapter 3: Cable Descriptions
Cable Lengths
Table 3 -2 Cable Length R equirements
From T o
Cable Designation Cable length
B CU DC Source
RF Head DC
Connector
G
5 lengths, 20 to 100 m in 20 m
increments (65.6 to 328 ft)
B CU RF Connector
RF Head RF
Connector
B
300 mm (1 ft)
AC Source B CU Customer
Interface
Compartment
E
Length as required.
Customer Output
Source
B CU Customer
Interface
Compartment
F
Length as required.
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Access P oint Hardw are Installation Earth Ground and P ower Cables
Earth Ground and Power Cables■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
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The objective of this procedure is to install the power and earth ground cabling for the Base
Control Unit (B CU) and RF Head.
Grounding Considerations
Above Ground F or ground rings and the interconnection of internal and external ground
rings, #2 to #6 A WG may be used. F or grounding of equipment and miscellaneous metallic
objects, #6 A WG minimum is required.
Exceptions Connection from an isolated ground bar (IGB) to master ground bar (MGB) is
accomplished using #2 to #6 A WG . The external ground bar (EGB) is grounded through a 2 -inch
wide, 16 -gauge copper strap, if available; otherwise, 2 -#6 A WG wires can be used. If the #6
A WG wires are used, then they must be connected at opposite ends of the EGB and have a
minimum separation of 12 -inches between them.
Below Ground All wire must be #2 A WG as a minimum. Ground rods are to be a minimum of
8 feet long and 5/8 -inch in diameter . In the case of a deep basement next to the rod, the rod
must be long enough to extend 3 feet below the basement floor .
Power Considerations
The Base Control Unit (B CU) is designed for 100/240 V AC (88–300 Vrms) @ 45–66 Hz, +21
to +30 VDC or —60 to —40VDC .
The system configuration determines which power cables are installed. The ground cable is
always installed first. Based on the system configuration perform the appropriate procedures
described in Chapter 4 Access P oint Hardware Installation .
DC Power (RF Head)
The DC power cable is orderable in a variety of lengths as indicated in T able 3 -3 below .
Depending on site configuration all of one length or a combination of lengths (up to 4) may be
used.
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Earth Ground and P ower Cables Chapter 3: Cable Descriptions
Table 3 -3 RF Head DC P ower Cable Description and P art Numbers
Cable Qty
Part Number Description
F
1–4 3089298C01
P ower Cable, 20 m (65.6 ft)
1–4 3089298C02
P ower Cable, 40 m (131.2 ft)
1–4 3089298C03
P ower Cable, 60 m (196.8 ft)
1–4 3089298C04
P ower Cable, 80 m (262.4 ft)
1–4 3089298C05
P ower Cable, 100 m (328.0 ft)
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Access P oint Hardw are Installation Antenna Cable
Antenna Cable■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
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Objective
This section contains general information on the antenna cabling.
Cable Label
Refer to T able 3 -1 for the labels used to identify the cables that will be shown in illustrations
throughout this chapter .
Table 3 -4 Cable Description and P art Numbers
Cable Qty
Part Number Description
B
2 – 4 3089492T02
Antenna Cable, 300 mm (1 ft.)
Antenna Cable Pin and Signal Information
The antenna cabling uses a 50 -Ohm coaxial cable. The inner conductor provides signaling and
the outer conductor provides shielding and ground.
Figure 3 -1 Antenna Cable Detail
Table 3 -5 Pin and Signal Information for Antenna Cable
Antenna
Inner Conductor Outer Conductor
B TX/RX
Ground
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R emote GPS Cable Chapter 3: Cable Descriptions
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Objective
This section contains general information on the Remote Global P ositioning System (RGPS)
cabling. Installation information is found in Chapter 4 Access P oint Hardware Installation ,
beginning with Procedure 4 -6 .
Cable Label
Refer to T able 3 -1 for the labels used to identify the cables that will be shown in illustrations
throughout this chapter . Cable C is available in different kits covering several lengths.
RGPS Cables
T able 3 -6 provides the quantities and descriptions of the cables.
Table 3 -6 Cables Needed for RGPS Connections
Cable Qty
Part Number Description
C 1 T472AA
RGPS cable, 15 m (50 ft.)
T472AB
RGPS cable, 38 m (125 ft.)
T472AC
RGPS cable, 76 m (250 ft.)
T472AD
RGPS cable, 152 m (500 ft.)
T472AE
RGPS cable, 304 m (1000 ft.)
T472AF
RGPS cable, 608 m (2000 ft.)
C1 1 SGKN4386
15 pin D -connector on one end and loose
wires on the other end. Cable is Motorola
P/N 3086433H12.
Mounting Considerations
The RGPS Head requires specific mounting considerations in order to properly observe the
GPS satellites.
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Access P oint Hardw are Installation R emote GPS Cable
•The mounting pipe for the RGPS head should be mounted vertically with less than five
degrees of tilt.
•It is recommended that the RGPS head be installed using the supplied mounting mast and
mounting hardware. Care should be taken to ensure that the RGPS chassis does not come
into contact with any metal surfaces. F ailure to properly isolate the RGPS chassis from
other conductive surfaces can lead to RGPS head failure. The supplied mounting hardware
has been designed to provide the required RGPS chassis isolation.
•P osition the RGPS head to have an unobstructed view of the sky and to minimize the chance
of debris (leaves, dirt, snow , ice, etc.) accumulating on the radome of the RGPS head.
•The RGPS head must have a clear view of the sky , preferably to within 10 degrees of the
horizon in all directions. The total blockage of the sky (due to buildings, mountains, etc.)
should be less than 50%.
•Place the RGPS head as far away from the transmit antenna as possible to avoid RF
interference issues.
•Place the RGPS head at least 15 m away from lightning rods, towers, or structures that
attract lightning. RGPS head damage is usually not the result of a direct lightning strike,
but of a lightning strike on a nearby structure. Also, since a lightning rod is connected
to an earth ground, it can act as a shield and create a shadow that may block or reduce
the signal from a satellite.
•A fter the Base Control Unit (B CU) is powered up (approximately 15 minutes), check the
RGPS signal strengths with the
gstatus
command on the B CU MMI port.
An optimal installation will have at least one satellite (SV) with an RS SI value 50,
and at least four (4) satellites with RS SI values 45.
A minimal installation should have at least four (4) satellites with RS SI values 40.
•The RGPS head is rated for ambient air temperatures from –40°C (–40°F) to 75°C (167°F),
and has ratings for humidity , shock, waterproof , UV light resistance, vibrations, salt fog,
ESD , EMI, and altitude.
•The RGPS system used for the Access P oint will support up to 1 km (3280 ft.) of overall
cable length from the RGPS head. If a long cable run needs to be broken into pieces,
minimize the number of breaks in the cable.
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RF GPS Cable Chapter 3: Cable Descriptions
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Objective
This section contains general information on the R adio Frequency Global P ositioning System
receiver (RF GPS) antenna cabling. More commonly referred to as Local GPS . Refer to for
installation information.
Cable Label
Refer to T able 3 -1 for the labels used to identify the cables that will be shown in illustrations
throughout this chapter .
Table 3 -7 Local GPS Cable Description and P art Numbers
Cable Qty
Part Number Description
D
1 Receiver SGRG4030
Assembly , GPS , RF Module
1 CGDSGPSKITF4NM50
Assembly , Receiver , RF GPS with 50
ft. cable
An SMA to N adapter is required; otherwise, a smaller diameter cable must be made with an
SMA connector on one end, with a maximum loss of <4.5 dB.
Surge Protection
RF GPS antenna requires lightning protection.
Mounting Considerations
Refer to T able 3 -8 for Local GPS mounting considerations.
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Access P oint Hardw are Installation RF GPS Cable
Table 3 -8 Local GPS Antenna Mounting Consider ations
Heading2
1
The mounting pipe for the Local GPS Head should be mounted vertically with less
than five (5) degrees of tilt.
2
The Local GPS Head requires a clear view of the sky , preferably to within ten (10)
degrees of the horizon in all directions. The more sky that is observed increases
the number of potential satellites that can be tracked, resulting in better Local
GPS performance.
3
During normal operation, the Local GPS Head continuously tracks a minimum of
four (4) GPS satellites. However , it is theoretically possible to operate the BTS by
tracking only one (1) GPS satellite. Motorola does not recommend tracking only one
(1) GPS satellite unless there has been an accurate site survey .
4
Place the Local GPS Head where RF obstructions of the sky are minimal. The
sky
includes everything to within ten (10) degrees of the horizon in all directions. RF
obstructions include buildings, towers, natural rock formations, snow , foliage, and
debris.
The mounting of the Local GPS head on antenna towers is not
recommended due to increased risk of damage due to lightning strikes. If
tower mounting is necessary the Local GPS head should mounted at the
lowest point possible and still maintain an unobstructed view of the sky .
5
Separate the Local GPS Head from other radiating sources. Excessive RF energy
can degrade the Local GPS Head’s ability to observe the GPS satellites. The Local
GPS Head receives on the GPS L1 frequency of 1575.42 MHz and incorporates
filters to minimize the effects of potential RF interference, however , strong radiants
can overwhelm the filters, thus degrading the units reception capability .
6
The Local GPS Head is rated for ambient air temperatures in the range -40 to +50
degrees C , and has ratings for humidity , shock, waterproofing, UV light resistance,
vibrations, salt, fog, ESD , EMI, and altitude.
7
An RF gain of between +10 dB and +26 dB should be provided to the Local GPS
receiver antenna input. The GPS antenna supplied in the CGDSGPSKITF4NM50
kit provides a nominal gain of +25 dB. The total signal loss from the
CGDSGPSKITF4NM50 antenna output and Local GPS antenna input must be less
than 15 dB at 1.575 GHz.
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Ethernet Cable Chapter 3: Cable Descriptions
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Objective
This section contains general information on the Ethernet Cabling. Refer to Chapter 4 Access
P oint Hardware Installation for ethernet cable installation information.
Cable Label
Refer to T able 3 -1 for the labels used to identify the cables that will be shown in illustrations
throughout this chapter .
Tools and Materials
There are no tools and materials required to install the Ethernet Cables.
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Access P oint Hardw are Installation Fiber Optic Cable
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Objective
This section contains general information on the fiber optic cable
Cable Label
Refer to T able 3 -1 for the labels used to identify the cables that will be shown in illustrations
throughout this chapter .
Cable Description and Part Number
The fiber optic cable is orderable in a variety of lengths as indicated in T able 3 -9 below .Depending
on site configuration all of one length or a combination of lengths (up to 4) may be used.
Table 3 -9 Fiber Optic Cable Description and P art Number
Cable Qty
Part Number Description
H
1–4 3089843T01
Fiber Optic, 20 m (65.6 ft)
1–4 3089843T02
Fiber Optic, 40 m (131.2 ft)
1–4 3089843T03
Fiber Optic, 60 m (196.8 ft)
1–4 3089843T04
Fiber Optic, 80 m (262.4 ft)
1–4 3089843T05
Fiber Optic, 100 m (328.0 ft)
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Draft OCT 2006
Customer Dened Input/Output Cables Chapter 3: Cable Descriptions
Customer Dened Input/Output Cables■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
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Objective
This section contains general information on the Customer Defined Input (CDI) and Output
(CDO) cables. Refer to Chapter 4 Access P oint Hardware Installation for installation information.
Cable Label
Refer to T able 3 -1 for the labels used to identify the cables that will be shown in illustrations
throughout this chapter .
Cable Descriptions and Part Numbers
T able 3 -10 gives the cable descriptions and part numbers used to install the Customer I/O
connectors.
Table 3 -10 Customer Dened I/O Cable Description and P art Numbers
Cable Qty
Part Number Description
F
1 SGLN6414A
Assembly , Installation, Installation
Hdw Pkg B CU
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Draft OCT 2006
Access P oint Hardw are Installation Customer Dened Input/Output Cables
Customer Dened Input and Output Connector Pinouts
Input Pins T able 3 -11 lists the pinouts for the Customer Defined Input 1 -4 and 5–8 connectors.
Refer to Figure 4 -17 .
Table 3 -11 Customer Dened Input Connector Pins 1–4 and 5–8
Pin Number Description Pin Number Description
Connector 1–4 Connector 5–8
1
Customer Defined Input 1
1
Customer Defined Input 5
2
Customer Defined Input 1 Return
2
Customer Defined Input 5 Return
3
Customer Defined Input 2
3
Customer Defined Input 6
4
Customer Defined Input 2 Return
4
Customer Defined Input 6 Return
5
Customer Defined Input 3
5
Customer Defined Input 7
6
Customer Defined Input 3 Return
6
Customer Defined Input 7 Return
7
Customer Defined Input 4
7
Customer Defined Input 8
8
Customer Defined Input 4 Return
8
CustomerDefined Input 8 Return
T able 3 -12 lists the pinouts for the Customer Defined Input 9 -12 and 13–16 connectors. Refer
to Figure 4 -17
Table 3 -12 Customer Dened Input Connector Pins 9–12 and 13–16
Pin Number Description Pin Number Description
Connector 9–12 Connector 13–16
1
Customer Defined Input 9
1
Customer Defined Input 13
2
Customer Defined Input 9 Return
2
Customer Defined Input 13 Return
3
Customer Defined Input 10
3
Customer Defined Input 14
4
Customer Defined Input 10 Return
4
Customer Defined Input 14 Return
5
Customer Defined Input 11
5
Customer Defined Input 15
6
Customer Defined Input 11 Return
6
Customer Defined Input 15 Return
7
Customer Defined Input 12
7
Customer Defined Input 16
8
Customer Defined Input 12 Return
8
Customer Defined Input 16 Return
68P09277A59 -5 3 -15
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Customer Dened Input/Output Cables Chapter 3: Cable Descriptions
Output Pins T able 3 -13 lists the pinouts for the Customer Defined Output connectors 1 -2
and 3 -4.
Table 3 -13 Customer Dened Output Connector Pins 1–2 and 3–4
Pin Number Description Pin Number Description
Connector 1–2 Connector 3–4
1
Customer Defined Output 1 NC
1
Customer Defined Output 3 NC
2
Customer Defined Output 1 C
2
Customer Defined Output 3 C
3
Customer Defined Output 1 NO
3
Customer Defined Output 3 NO
4
Customer Defined Output 2 NC
4
Customer Defined Output 4 NC
5
Customer Defined Output 2 C
5
Customer Defined Output 4 C
6
Customer Defined Output 2 NO
6
Customer Defined Output 4 NO
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C h a p t e r
4
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Installation Ov erview Chapter 4: Access P oint Hardw are Installation
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Overview
This chapter provides procedures for Base Control Unit (B CU) and RF Head installation and
associated cabling.
All required cables have been installed at the site and routed to the B CU . The following items
are covered in this chapter .
•Assemble the B CU mounting hardware
•Assemble the RF Head mounting hardware
•A ttach signal cables to the B CU and RF Head
•A ttach power cables to B CU and RF Head
•Complete the installation completion checklist
The site cabling has been installed and routed to the location of the B CU .
Procedure Order
The process of installing the outdoor unit requires that the following procedures be completed
in the order shown:
4 -2 68P09277A59 -5
Draft OCT 2006
Access P oint Hardw are Installation Installation Ov erview
1. A ttach the B CU mounting bracket assembly to wall/pole or mount on pedestal
2. Install B CU .
3. A ttach the RF Head mounting bracket assembly to pole
4. Install RF Head
5. Install Antennas
6. Install RGPS or RF GPS antenna
7. Connect earth ground cables
T o B CU
T o RF Head
Between RF Head and tower
Between antennas and tower
T o GPS
8. Connect AC power cable
9. Connect DC power cables from RF Head to B CU
10. Connect antenna cables to B CU
11. Connect GPS cables to B CU
12. If present, connect Ethernet cables
13. Connect Fiber Optic cable from RF Head to B CU
14. If required, power on units
15. Clean up site
16. Fill out the installation completion checklist
Installation Kits
The following items are the kits that may have been shipped to the site.
•STHX4003 — 3.5 GHz RF Head
•STLN6518 — 3.5 GHz RF Head Mounting Bracket
•SC1666 — Base Control Unit (AC)
•SXXX — B CU P ole Mount Bracket
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Installation Ov erview Chapter 4: Access P oint Hardw are Installation
GPS Kits
The following items are the Global P ositioning System (GPS) kits that may have been shipped
to the site.
•STRG4037 — RF GPS Module
•CGDSGPSKITF4NM50 — RF GPS Head
•T472AA — T472AF — Remote GPS Receiver Kit
•SGKN4386 — Remote GPS Cable Kit
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Access P oint Hardw are Installation Connector Locations
Connector Locations■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
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Base Control Unit Connector Locations
Figure 4 -1 shows the location of the cable connectors on the B CU .
RF Head Connector Locations
Refer to Figure 1 -4 for the location of the cable connectors on the RF Head.
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Base Control Unit Installation Chapter 4: Access P oint Hardw are Installation
Base Control Unit Installation■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
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Overview
This section contains procedures for installing a Base Control Unit (B CU). Refer to Figure 1 -1
for an overall view of the B CU .
BCU Compartments
Figure 4 -1 and Figure 4 -2 show the two major compartments that make up the B CU .
4 -6 68P09277A59 -5
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Access P oint Hardw are Installation Base Control Unit Installation
Figure 4 -1 BCU Card Cage Compartment
ti-cdma-04167.eps
Circuit
Breakers
Modem
Cards
PSU 3
Fan PSU 2
PSU 1
Heaters
Alarm Card
Controller Cards
68P09277A59 -5 4 -7
Draft OCT 2006
Base Control Unit Installation Chapter 4: Access P oint Hardw are Installation
Figure 4 -2 BCU P ower and Customer Interface Compartment
ti-cdma-04174.eps
Ethernet
connections
RGPS connector
behind cover
AC Power compartment
with cover removed
Customer Input /
Output connectors
RF -GPS Module
Electrical
The B CU is designed to use 100–240 V AC , +27 VDC , or —48 VDC .
If powered by single phase AC voltage (customer supplied), the range is 100–240 V (88–300
VRMS) at 45–66 Hz. The AC voltage is converted to +54 VDC within the P ower Supply Modules
(PSM).
If powered by +27 VDC (customer supplied) the range is +21 to +30 VDC .
If powered by —48 VDC (customer supplied) the range is —60 to —40 VDC .
4 -8 68P09277A59 -5
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Access P oint Hardw are Installation Base Control Unit Installation
Battery Backup
Battery backup or associated charging/control circuitry for the AC version of the B CU is not
supported.
Dimension and Weight
If the BCU must be ph ysically adjusted/mo v ed, Motorola recommends that a minimum
of two people perform this function.
•Dimension: 508 mm (20 in.) Wx 760 mm (30 in.) Hx 508 mm (20 in.) D
•W eight: 68 kg (150 lbs)
The dimension measurements do not include connectors, hinges, handles, or latches.
Conduit Sizes
Refer to T able 4 -1 for the proper conduit sizes.
Table 4 -1 Conduit T ypes and Siz es
No. Designation
Required Size Hole Size
1
Ethernet 1 inch 1 inch
2
P ower
1–1/4 inch 1–1/4 inch
3
Fiber Optic
None
Bulkhead connector
Tools and Materials
The following tools and materials or equivalent are required to install the B CU .
68P09277A59 -5 4 -9
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Base Control Unit Installation Chapter 4: Access P oint Hardw are Installation
•Bucklestrap Cutting T ool (Motorola P/N 6604809N01) for pole mounting bracket assembly
•Safety Glasses
•13/16 Breakaway T orque W rench 38 in -lb
•Chalk
•T ape Measure
•Electrical T ape
•Crescent W rench
•Socket Driver
•Metric or Standard Socket Set for 1/4–in or 3/8–in driver
BCU Mounting Bracket Assembly Installation
Figure 4 -3 shows the W all Mounting Bracket and Mounting Bracket Assembly .
Figure 4 -3 BCU P ole Mounting Br ack et Assembly
ti-cdma-04176.eps
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Access P oint Hardw are Installation Base Control Unit Installation
BCU Mounting Bracket Assembly Procedure
P ole Mount F ollow the procedure in Procedure 4 -1 to install the pole mounting bracket
assembly and wall mounting bracket for pole mounting the B CU .
Once the BCU is installed, DO NO T use it as a step ladder . It is not designed to support
a person hanging from or standing on top of it.
Procedure 4 -1 Procedure to Install Mounting Br ack et Assembly on a P ole
1
Slide non–buckle end of strap through openings in P ole Mounting Bracket
Assembly .
2
Set P ole Mounting Bracket Assembly with straps at the desired height.
Initial height is determined by customer . The bottom of the B CU
is a minimum of 1 meter from the ground. Adjust P ole Mounting
Bracket Assembly to account for this minimum distance.
3
W rap strap around the pole, slide non–buckle end through strap loop and
pull snug.
4
A ttach Bucklestrap Cutting T ool (slide strap through openings in tool,
pull gripper lever to slide strap into spindle head), slide tool towards
buckle. Place cutting tool end of tool as close to the buckle as possible.
The strap can be cut to a more manageable length prior to using
the tool. Bucklestrap Cutting T ool is a ratchet spindle and cutter
in one.
5
Turn spindle clockwise until strap is tight.
Bend the excess strap over tightened strap, cut strap, fold the cut tab into
the buckle, then close buckle.
6
Using the tool bend the strap over towards the buckle.
Remove tool and use a hammer to bend the strap more.
Continued
68P09277A59 -5 4 -11
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Base Control Unit Installation Chapter 4: Access P oint Hardw are Installation
Procedure 4 -1 Procedure to Install Mounting Br ack et Assembly on a P ole (Continued)
7
Use the hammer to bend buckle tabs over strap.
Use electrical tape to cover over the buckle and straps.
8
P erform step 3 through step 8 , for the remaining straps.
9
Secure Mounting Bracket to P ole Mounting Bracket Assembly using 9 M6
bolts and washers (Refer to Figure 4-3 ). T orque bolts to 3.4 N–m (30 in–lbs).
10
Mounting bracket is ready for B CU attachement.
Installing the BCU
F ollow the steps in Procedure 4 -2 to install the Base Control Unit (B CU).
Procedure 4 -2 Procedure to Install the BCU
1
P erform the procedure for attaching the mounting bracket described in Procedure 4-1 .
2
Mount the B CU onto the mounting bracket and secure using 8 screws.
It is recommended that a minimum of two people attach the B CU on the pole
mounting bracket.
3
If not already open, open the B CU Customer Interface compartment. Route ground cable
to B CU and connect.
The cable access holes are covered. Remove the wing nuts and covers before routing
cables to and from the B CU Customer Interface Compartment.
4
Ensure the AC power is disabled at the source before attempting to install the AC power cabling.
F or AC power cable perform Procedure 4-4 .
5
F or RF Head DC power cable installation, perform Procedure 4-5 .
6
F or Antenna cable installation, perform .
7
F or fiber optic cable installation, perform
8
F or RF GPS cable installation, perform Procedure 4-7
F or RGPS cable installation, perform Procedure 4-6 .
Continued
4 -12 68P09277A59 -5
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Access P oint Hardw are Installation Base Control Unit Installation
Procedure 4 -2 Procedure to Install the BCU (Continued)
9
F or Customer Input and Output cable installation, perform Procedure 4-10 .
T o avoid confusion tag the output cables.
10
F or ethernet cable installation (if available), perform Procedure 4-8 .
68P09277A59 -5 4 -13
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Div ersit y Access P oint (DAP) RF Head Assembly Installation Chapter 4: Access P oint Hardw are Installation
Diversity Access Point (DAP) RF Head Assembly
Installation
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Overview
This section contains the procedures for installing the Diversity Access P oint RF Head Assembly
which is comprised of the RF Head and antenna radome. Refer to Figure 1 -2 for an overall
view of the DAP .
DAP RF Head
Refer to Figure 1 -4 for the major components of the DAP RF Head.
Electrical Requirements
The RF Head is designed to use 40 to 59 VDC (nominal +54 VDC) supplied through the Base
Control Unit (B CU).
Dimensions and Weight
•Dimension: 228.6 mm (9 in) Wx 712 mm (28 in) Hx 406.4 mm (16 in) D
•W eight: 25.4 kg (56 lbs)
The dimension measurements do not include connectors, hinges, handles, or latches.
Conduit Sizes
Refer to T able A -1 for conduit sizes.
Table 4 -2 Conduit R equirements
No. Designation
Required Size
1
P ower
1–1/4 inch
2
Fiber Optic
None
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Draft OCT 2006
Access P oint Hardw are Installation Div ersit y Access P oint (DAP) RF Head Assembly Installation
Tools and Materials
•Mounting Bracket Assembly
•U -bolts
•Set of metric sockets (3/8–in or 1/4–in drivers)
•Set of standard sockets (3/8–in or 1/4–in drivers)
•Socket 3/8–in or 1/4–in driver
•T orque Driver
•Cordless P ower Driver
•Ground Lug
•Crimp T ool
•T30 T orx Screw Driver
•Adjustable Crescent W rench
•Tie -wraps of varying lengths
U -Bolt Specications
Reference Figure A -1 and T able A -2 to determine the proper U -bolt to use. P ole mounting
bracket is designed to use 3/8–inch hardware.
68P09277A59 -5 4 -15
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Div ersit y Access P oint (DAP) RF Head Assembly Installation Chapter 4: Access P oint Hardw are Installation
Figure 4 -4 U -Bolt Sizing
ti-cdma-05727.eps
C
B
Table 4 -3 DAP U -Bolt Sizing
Pipe OD
Minimum Dimension B
Minimum Dimension C
(in) (mm) (in) (mm) (in) (mm)
2.067 52.50 3.886 98.70 0.6 15
2.469 62.71 4.429 112.50 0.6 15
3.068 77.93 5.098 129.50 0.6 15
Increasing dimension B beyond that indicated above will result in a corresponding increase
in dimension C in order to maintain proper clamping force
RF Head Assembly Installation Procedure
F ollow the steps in Procedure A -1 to install the RF Head Assembly including main Support
Bracket Assembly .
The following procedure is based on the RF Head arriving already assembled. If the
RF head must be assembled at the site then follow the procedure in Appendix A.
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Access P oint Hardw are Installation Div ersit y Access P oint (DAP) RF Head Assembly Installation
Figure 4 -5 RF Head Assembly
ti-cdma-05725.eps
Procedure 4 -3 Procedure to Install RF Head Assembly
1
If cables have already been routed to the tower , proceed to step 4 .
Otherwise, proceed to step 2
Continued
68P09277A59 -5 4 -17
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Div ersit y Access P oint (DAP) RF Head Assembly Installation Chapter 4: Access P oint Hardw are Installation
Procedure 4 -3 Procedure to Install RF Head Assembly (Continued)
2
On the inside of the Customer Interface Compartment are color
coded stickers and matching tie-wraps. The colors are matched to
the RF Head DC power cables. The colors are as follows:
•RFU 1 = RED
•RFU 2 = BL UE
•RFU 3 = YELLOW
•RFU 4 = GREEN
Remove the appropriate color sticker and apply it to the
underside of the RF Head. Use the appropriate tie-wraps to
identify the DC power cables and the Fiber Optic cables.
F or Example:
The first RF Head used would have the power connector identified with the
RED sticker , and the power and fiber cables would be tagged with
the RED tie-wraps.
3
Prepare the RF Head for hoisting.
A ttach carabiner to handle of RF Head.
Use the block and tackle to carefully hoist (so cables will not be damaged)
the RF Head Assembly up to the tower . Proceed to step 5 .
4
Prepare the RF Head for hoisting.
A ttach carabiner to handle of RF Head.
Use the block and tackle to carefully hoist the RF Head Assembly up to
the tower . Proceed to step 5 .
5
Remove nuts and plate from both ends of the U -bolt.
6
Set RF Head Assembly at the required height.
7
Slide first U -bolt around pole and through top slots of Main Support
Bracket Assembly . Slide plate (or washers) over threaded ends of U -bolt.
Thread nuts on U -bolt and hand tighten.
8
Slide second U -bolt around pole and through bottom slots of Main Support
Bracket Assembly .Slide plate (or washers) over threaded ends of U -bolt.
Thread nuts on U -bolt and hand tighten.
9
Align Main Support Bracket Assembly on pole and tighten nuts using a
socket wrench. T orque nuts to 23.5 in-lbs (2.6 N-m).
Continued
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Access P oint Hardw are Installation Div ersit y Access P oint (DAP) RF Head Assembly Installation
Procedure 4 -3 Procedure to Install RF Head Assembly (Continued)
10
Ensure that the RF Head is properly mounted and its movement is
not obstructed. T o adjust the azimuth (up/down angle) loosen 2
M6 screws on each side of unit using a 10 mm socket or crescent
wrench. R ange of motion is 25 degrees from horizontal. The
retention bracket serves as an indicator of the azimuth in degrees.
When RF Head is set at the desired position, tighten captive
bolts on retention bracket. T orque bolts to 45 in-lbs (8.2 N-m).
Tighten captive screws at pivot on each side of unit to
secure RF Head. T orque bolts to 45 in-lbs (8.2 N-m).
Proceed to step 11 to conect cables.
If cables have been previously routed to the tower ,
proceed to step 13
1 1
Connect Fiber Optic Cable to RF Head. (Fiber
cable has been marked with a color coded tie-wrap.)
T orque nut 20 in-lbs (2.3 N-m).
12
Connect DC power cable to RF Head. F ollow color code (P ower cable has
been marked with the appropriate color coded tie-wrap, and RF Head DC
P ower connector has been marked with the appropriate color coded sticker .)
Proceed to step 15
13
Open B CU Customer Interface compartment, verify that
DC power cables are properly color coded. If not already
connected, connect DC power cables per the color code.
14
V erify that the Fiber Optic cable is properly color coded and connected to
the proper FIBER connector on the underside of the B CU .
The bend of the Fiber Optic cable is not to ex ceed 90 mm.
15
V erify that all cables are connected.
Close and lock Customer Interface Compartment.
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Ground Cabling Installation Chapter 4: Access P oint Hardw are Installation
Ground Cabling Installation■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
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Objective
This section contains the procedures for installing the ground cable to the Antenna, B CU ,
RGPS , and RF Head.
General Grounding Guidelines
The site should have had an external ground ring or bus bar being used. The ground ring and
bus bar should be an integral part of the structures that will hold the equipment. Reference
Grounding Guidelines for Cellular R adio Installations (Motorola part number 68P81150E62)
or
Appendix C of Standards and Guidelines for Communication Sites.
BCU Grounding
The B CU should be tied to a single point grounded to the system master ground. All
interconnect cables should be in metallic sealtight type conduit or solid shield RF cables. It is
recommended that these cables be run in raceways to reduce the loop dimensions of the cable
runs. This minimizes the effect of inducted currents caused by the intense electromagnetic
field of lightning current.
RF Head Grounding
All RF cables should be in metallic sealtight type conduit or solid shield RF cables. It is
recommended that these cables be run in raceways to reduce the loop dimensions of the cable
runs. This minimizes the effect of inducted currents caused by the intense electromagnetic field
of lightning current. A ground lug with captive screws is provided on the RF Head to attach
the ground wire.
DC Power Grounding
The DC power cables from the B CU to the RF Head are routed through conduit. The conduit
is grounded to the master ground.
Antenna Grounding
The antenna is grounded through the RF Head.
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