Ensemble Communications ODU-2800-001 Fiberless 2800 Series Outdoor Unit transceiver User Manual Users manual 1 of 3 Site Setup

Ensemble Communications Inc. Fiberless 2800 Series Outdoor Unit transceiver Users manual 1 of 3 Site Setup

Users manual 1 of 3 Site Setup

6
Ensemble Communications Inc.
CPE Site Setup 6
This chapter details how to install and commission the CPE
site. Before beginning the process, review the information in
“Preinstallation”, page 3-1.
Chapter Topics Antenna Alignment 6-12
Antenna Alignment Completion 6-14
Antenna Mounting 6-4
Cable Terminations 6-8
CPE Indoor Access Requirement 6-9
CPE Indoor Grounding 6-10
CPE Indoor Installation 6-9
CPE Indoor Power 6-10
CPE Indoor Procedure 6-11
CPE Indoor Temperature 6-10
CPE LEDs 6-14
CPE Software Configuration 6-14
CPE Subscriber Interface Cards (SICs) 6-14
DC Voltage Measurement 6-12
Ground Mast 6-4
Horizontal Antenna Polarization 6-7
IF Cable Installation 6-8
Indoor Equipment Components 6-2
Indoor Equipment Placement 6-9
Installation Materials 6-2
Lightning Suppressor Installation 6-5
Main Lobe Location 6-14
ODU Components 6-2
ODU Installation 6-4
Receive Signal Levels for Various Voltages 6-13
Sighting Tools 6-3
Test Equipment 6-3
Unpacking and Inventory 6-2
Vertical Antenna Polarization 6-7
Voltage Readings 6-13
Ensemble Communications Inc.
6-2
Operator’s Guide to the Fiberless System
Unpacking and Inventory
•Unpack the Fiberless 320 CPE and CPE ODU on a flat, clean
surface at the installation site.
•Check the items received against the packing list and a copy of
the purchase order to ensure that you have received your com-
plete order.
•Check that the CPE ODU has the frequency band that was
ordered. This information is on the manufacturer label and
should match the network plan.
•Inspect all components to be sure they are not damaged. If a
component appears to be damaged or is missing, contact your
shipper and Ensemble Customer Service immediately.
•Save all packing materials.
Note Ensemble Customer Support is available at 888-710-8910.
Indoor Equipment
Components •Fiberless 320 indoor unit with pre-installed subscriber interface
cards (SICs). Cards may be of the following types:
•4-port T1
•6-port 10/100BaseT
Note Subscriber interface cards are specified at the time of ordering and are
factory-installed.
Note Release 1.0 does not support V.35 SICs.
•Power cord for AC-powered model
ODU Components •Fiberless CPE ODU with frequency band as specified at time of
ordering. See page A-1 for specifications.
Note CPE ODU frequency is specified at the time of ordering and is factory-
configured.
•ODU wall mount or pole mount kit
Note Mount type is specified at the time of ordering.
•Ground strap
Installation Materials •3M type 33 electrical tape
•3M electrical coating (PN 054007-1483)
•RG-6 Belden 9248 75 Ohm coaxial cable for outdoor use
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CPE Site Setup
6-3
•RG-6 Belden 82248 for indoor plenum use
•Ratchet wrench
•7/16-inch socket
•1/2-inch socket
•TNC crimp connectors
•Black nylon wire ties for outdoor use
Note For a complete list of recommended ancillary equipment, see Table 3-3,
“Ancillary Equipment Requirements,” on page 10.
Sighting Tools The following equipment is recommended to assist in antenna
alignment:
•Binoculars to locate the base station ODU
•Reflection mirror
Test Equipment •Digital voltmeter (DVM)
•BNC (cable-male connector) test cable for meter
•Banana plug with female BNC connector
•Laptop computer
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Operator’s Guide to the Fiberless System
ODU Installation
Note Installers are responsible for supplying mounting bolts.
Ground Mast All steel mounting structures attached to the building and the
antenna mast must be connected to the building grounding
system. If no grounding system or ring is available, ground the
antenna mounting structures to the nearest structural beam. The
grounding conductor should be set at least a # 2 (AWG) solid
tinned copper wire. Use exothermic welds (Cad Welds) when
possible to connect to the mounting structure and the building
grounding system.
Antenna Mounting 1. Attach the ODU mounting bracket to a mast between 2- and 4-
inches in diameter (1 in Figure 6-1).
2. Remove the nuts and washers (2 in Figure 6-1) from one side of
each of the two mounting clamps (3) and slide the mounting
clamps off the bolts. Set them aside in a safe place.
3. Slip the mounting rack (4 in Figure 6-1) around the mast.
4. Reattach each of the two mounting clamps with the flat washer,
lock washer, and nut.
5. Tighten with a 1/2-inch socket wrench until secure.
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CPE Site Setup
6-5
Figure 6-1. CPE Pole Mount Assembly
6. Attach the antenna to the mounting plate, orienting it for
proper polarization (see the next sections) and LOS alignment
with the base stations.
7. After aligning the antenna, tighten the mounting clamps.
Lightning Suppressor
Installation Note A lightning suppressor is not shipped with the ODU. See page 3-10 for
the Ensemble-recommended lightning suppressor.
WARNING
It is not possible to guarantee that lightning protection will
be 100 percent effective against a direct lightning strike.
Install one suppressor as close as possible to the point at which the
cable enters the building. Another suppressor should be installed
as close as possible to the ODU. See Figure 6-2 and Figure 6-3 for
illustrations of the suppressor installation.
(6) Elevation
Markers
(5) Alignment
Bracket
(7) Azimuth
Alignment
Bolt
Vertical
Alignment Bolt
(1) Mast
(3) Mounting
Clamps
(4) Mounting
Rack
(2) Mounting
Bolts
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Operator’s Guide to the Fiberless System
Note Connect the supplied ground strap from the ODU housing to the pole
mount (antenna ground points), ensuring there is contact on the pole.
Figure 6-2. Lightning Suppressor Assembly
Figure 6-3. Lightning Suppressor Assembly Closeup
Grounding
stud
Ground
strap
Suppressor
From
Indoor Unit
Outdoor Unit
To TNC IF
Connector
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CPE Site Setup
6-7
Vertical Antenna
Polarization •For a vertical polarized antenna, mount the unit with its two
cable connectors facing down and the “V” is up as shown in
Figure 6-4.
•Line up the bolts in the antenna with the four holes in the
mounting bracket as shown in Figure 6-4.
.
Figure 6-4. Mounting Vertically Polarized ODU
Horizontal Antenna
Polarization •For a horizontally polarized antenna, mount the unit with its
two cable connectors facing sideways, so that the TNC connec-
tor points downward and the “H” is up as shown in Figure 6-5.
•Line up the bolts in the antenna with the four holes in the
mounting bracket as shown in Figure 6-5.
Figure 6-5. Mounting Horizontally Polarized ODU
BNC
alignment
connector
Drain hole
TNC IF
connector
Drain hole
Antenna
Ground
Points
BNC
alignment
connector
Drain hole
TNC IF
connector
Drain hole
Antenna
Ground
Points
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Operator’s Guide to the Fiberless System
IF Cable Installation
WARNING
The RG-6 cable may have -48 VDC across the connector
when it is connected to the CPE. So if for some reason the
CPE has been powered up, power it off before connecting
or disconnecting the RG-6 cable at either end.
Note Belden 9248 (for outdoor) or Belden 82248 (for plenum indoor) are the
only approved RG-6 cable types.
1. Run RG-6 coaxial cable between the CPE and the CPE ODU.
The maximum permissible individual cable run length is 1,000
feet (300 meters). Ensure there is an 18-inch (45 cm) service
loop at each end of the cable.
When required, encase cables in plastic or metal conduit or
cable duct, maintaining a minimum bend radius of two inches
(5 cm).
Note Depending on local codes and the HVAC design of a particular building,
plenum-rated cable may be required.
Normally, cables between the ODU and the CPE indoor equip-
ment should not be spliced. However, if a cable splice cannot
be avoided, use only approved connectors.
2. Label each end of the cable individually with numbers or col-
ors using cable labeling tape. 3M makes a product that is ide-
ally suited for this application.
Cable Terminations The RG-6-type coaxial cable uses a male TNC connector to connect
to the ODU. Follow the instructions from the connector
manufacturer to prepare the cable. Install the connector only with
the recommended crimping tool. (See page 3-10 for recommended
tool.)
1. Install TNC connector on the IF cable.
2. Connect the cable to the lightning suppressor.
3. Make an 18-inch (45 cm) IF jumper cable with a TNC connector
on each end.
4. Install the 18-inch IF jumper cable between the ODU and the
lightning suppressor.
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CPE Site Setup
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5. Waterproof the connector using a sealing type of heat shrink-
able tubing, cold shrink tubing, or 3M type 66 vinyl tape with a
coating of 3M electrical coating.
Note Waterproofing is not required for connectors that terminate inside.
6. At the CPE indoor equipment, install a TNC connector on each
IF cable.
7. Following the system design plan, connect the cable from each
antenna unit to a specific ODU connector on the CPE.
CPE Indoor Installation
Indoor Equipment
Placement The Fiberless 320 CPE can be located in a wiring closet with other
communications equipment or in a customer suite. Its compact
low-profile package, rubber feet, and optional mounting brackets
make it easy to mount it in either a standard 19-inch (47 cm) or 23-
inch (57 cm) cabinet or stack on a shelf using the included rack-
mounted ears (see Figure 6-6).
Figure 6-6. CPE Showing Airflow Vents and Rack-mounted Ears
Caution
When placing the CPE, do not block the airflow vents that are
located on both sides of the unit.
CPE Indoor Access
Requirement Allow enough room to accommodate the size of the unit (1.5 U [2.6
inches/6.6 cm) by 9.5 inches (25 cm) deep) with enough clearance
to accommodate termination of up to 16 data cables or 12 T1
cables, two cables to the ODU, and a power cord.
DO NOT BLOCK
AIRFLOW VENTS
Rack-Mount Ears
Do not block airflow vents
located on both sides
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Operator’s Guide to the Fiberless System
CPE Indoor
Temperature The location should meet these temperature allowances, including
enough ventilation to dissipate heat loads of 150 Watts:
50° to 86° F (10° to 40° C)
CPE Indoor Power The CPE indoor unit is normally shipped for use with 120/220
VAC power. When possible, it should be plugged into a dedicated
15 Amp circuit. You may install a small PC-style UPS if desired.
CPE Indoor Grounding For AC systems, ground the indoor unit by connecting its
conductor to a grounded power outlet. The ground conductor on
the power plug must be connected to the building’s electrical
ground.
WARNING
Do not power up the indoor unit until you are instructed to
do so during the initial procedure.
Ensemble Communications Inc.
CPE Site Setup
6-11
CPE Indoor Procedure •Select an environment that is dirt and dust free for the CPE.
•Situate the CPE box in a rack, shelf mount or on a table top.
Connect the power cable to the power connector on the back of
the CPE indoor equipment.
WARNING
The cable may have -48 VDC across the connector when
connected to the CPE. Therefore, DO NOT apply power to
the CPE before connecting or disconnecting the RG-6
cable at either end.
Note The CPE requires a nominal of 110/220 VAC, 10 Amps. Each CPE
requires a separate circuit breaker. UPS is optional.
•Connect the RG-6 cable to the CPE ODU1 port connector (see
Figure 6-7).
•Plug the CPE power cord into either a 110/220 VAC power out-
let (Figure 6-7 shows a typical 110 VAC outlet).
•Turn on breaker to the CPE and verify that the fan is operating.
Note The CPE has a field-replaceable 3-Amp fuse located behind the switch
housing. Remove the housing to replace this fuse.
Figure 6-7. Power Cable Installation
SIC
RG-6 Cable
Power Cable
CPE ODU
(rear view)
TNC IF Port
Laptop
10BaseT
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Operator’s Guide to the Fiberless System
Caution
If you power off the CPE, wait five seconds before turning on
the power again.
Antenna Alignment
The following sections describe how to align the antenna.
Figure 6-8 illustrates the assembly and its alignment rods.
Figure 6-8. Antenna Adjustments
DC Voltage
Measurement •Connect a BNC cable to the ODU alignment port (BNC connec-
tor) as shown in Figure 6-9.
•Connect the other end of the BNC cable to the banana plug.
•Turn on the DVM and set it to measure DC voltage. Make note
of the voltage reading on the DVM.
•Connect the banana plug to the digital voltage multimeter
(DVM).
Vertical alignment rod
Horizontal alignment rod
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CPE Site Setup
6-13
Figure 6-9. Digital Voltage Multimeter (DVM) Connection
Note The alignment port is factory configured to provide a voltage of 0 - 5
VDC. Any received signal level (RSL) of less than 0.5 VDC is translated
as 0 and the readout displays a blinking 0.
Receive Signal Levels
for Various Voltages
Note These values are a guide. They will be affected by rain fading, antenna
alignment accuracy, and antenna tilt angle.
Voltage Readings 1. Using the 7/16-inch socket wrench set, start sweeping the
antenna slowly to one direction. Pause every two turns, wait-
ing for the readout to stabilize before preceding.
CPE ODU
(rear view)
Digital
Voltage
Multimeter
BNC Alignment
Connector
Table 6-1: RSL and Voltages
Rx pwr (dBm) RSL (V)
-75 1.08
-70 1.39
-65 1.71
-60 2.04
-55 2.35
-50 2.69
-45 3.00
-40 3.33
-35 3.65
-30 3.96
-25 4.29
-20 4.61
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Operator’s Guide to the Fiberless System
2. Note the peak voltage variances, and sweep the antenna in the
other direction.
Main Lobe Location 3. Move the antenna to the strongest signal reference of the two.
4. Repeat steps 1-3 for the vertical alignment.
Antenna Alignment
Completion 5. When alignment is completed, disconnect the BNC cable at
both the ODU BNC connector and the DVM.
6. Recap the ODU BNC connector and stow all tools.
CPE Software Configuration
See page 7-65.
CPE Subscriber Interface Cards (SICs)
Customer equipment is connected to the SIC ports at the rear of the
CPE. Slot 1 may be the four-port T1, and slot 3 may be the six-port
10/100BaseT.
Note Release 1.0 does not support slot 2.
Connect CPE SIC ports to the customer equipment.
CPE LEDs
Within 45 seconds of successful registration, the CPE establishes an
active data connection.
The CPE Status, ODU, and Sync LEDs, as shown in Figure 9-1, will
display solid green if the CPE is functioning properly.
Note At power up, Status, ODU, and Sync LEDs are red.
See “Troubleshooting” on page 9-1 for the LED descriptions.

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