Westell CSI510-02 BIDIRECTIONAL AMPLIFIER User Manual Report

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Document ID	147152
Application ID	GSPT0LxaPMCCjFCylB2xqA==
Document Description	Revised Users Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	33.81kB (422638 bits)
Date Submitted	2001-04-30 00:00:00
Date Available	2001-08-10 00:00:00
Creation Date	2001-04-17 20:20:47
Producing Software	Acrobat Distiller 5.0 (Windows)
Document Lastmod	2001-04-17 20:21:27
Document Title	Report
Document Creator	Acrobat PDFMaker 5.0 for Word
Document Author:	Bert Boyce

Cellular Specialties, Inc.
Model 510 In-Building Amplifier
AMPS
Installation and Users Manual
The serial number may be found on the label on the rear panel of the unit. For your
convenience, note this number below, and retain this manual, along with proof of purchase , to
serve as a permanent record of your purchase in the event of a theft, or for future reference.
MODEL NUMBER
510
DATE OF PURCHASE
SERIAL NUMBER
NAME OF COMPANY
F C C ID N V R C S I5 1 0 -0 2
T h is d e v ic e c o m p lie s w it h p a r t s 2 2 a n d 2 o f
t h e F C C R u le s .
DISCLAIMER
All information and statements contained herein are accurate to the best of the knowledge of Cellular Specialties, but Cellular Specialties makes no warranty
with respect thereto, including without limitation any results which may be obtained from the products described herein or the infringement by such products of
any proprietary rights of any persons. Use or application of such information or statements is at the user's sole risk, without any liability on the part of Cellular
Specialties, Inc. Nothing herein shall be construed as license or of recommendation for use, which infringes upon any proprietary rights of any person.
Product material and specifications are subject to change without notice. All sales of the product or products described herein are subject to Cellular
Specialties' standard terms of sale and the specific terms of any particular sale.
TABLE OF CONTENTS
1.0 SAFETY GUIDELINES
2.0 PRODUCT DESCRIPTION
MECHANICAL OUTLINE DRAWING
3.0 GENERAL SPECIFICATIONS
4.0 INSTALLATION
5.0 AMPLIFIER ADJUSTMENT
6.0 TROUBLESHOOTING
10
MANUAL510AMPS YAGI-3
1.0
SAFETY GUIDELINES
The general safety information in this guideline applies to both operating
and service personnel. Specific warnings and cautions will be found in
other parts of this manual where they apply, but may not appear in this
summary. Failure to comply with these precautions or specific warnings
elsewhere in the manual violates safety standards of design,
manufacture, and intended use of equipment. Cellular Specialties, Inc.
assumes no liability for the customer's failure to comply with these
requirements.
GROUNDING
This amplifier system is designed to operate from single-phase 120VAC power and should
always be operated with both the neutral and ground wires properly connected. Do not
remove or otherwise alter the grounding lug on the power cord.
EXPLOSIVE ATMOSPHERES
This product has an integral circuit breaker, which may cause an electrical flash if the
breaker should reset. To avoid explosion or fire, do not operate this product in the presence of
flammable gases or fumes.
LIGHTNING DANGER
Do not install or make adjustments to this unit during an electrical storm.
NO USER SERVICEABLE PARTS INSIDE
HAZARDOUS VOLTAGES ARE PRESENT WHEN THE COVER IS REMOVED.
Opening the chassis will void your warranty. If you suspect a malfunction with this product, call
your dealer or the Cellular Specialties Support Line at (603) 626-6677.
MANUAL510AMPS YAGI-3
2.0
PRODUCT DESCRIPTION
Cellular Specialties, Inc. developed the Model 510amps In-Building Amplifier (IBA) for use in enclosed
structures where sufficient signal from local cell sites to operate cell phones was unavailable within the
building. It is, of course, necessary that sufficient signal be available on the roof of the structure. The
IBA is connected to an external antenna, usually on the roof, and to one or more internal antennas
placed strategically throughout the area where phone service is desired.
The external antenna is an omni-directional antenna, used when the building is located in close
proximity to one or more cell sites. Internal antennas are usually omni-directional although various other
types may be used for certain installations. The IBA amplifies both the "uplink" (phone to tower) and
"downlink" (tower to phone) signals thus facilitating communications to and from the local cell site
There are four amplification stages on the downlink and four on the uplink for a total of +58dB nominal
gain for each link. (see Figure 2.1) Both links have manual gain control settings accessed through DIP
switches on the top cover plus an AGC control for both the uplink and downlink. There are also LED
indicators on the top cover for power on, transmitter on, uplink overload and downlink overload.
An automatic amplifier safety shutdown circuit is also present which will disable the transmitters for ten
seconds should the uplink or downlink overloads be reached to prevent excessive intermodulation and
oscillation.
836.5 MHZ
836.5 MHZ
881.5
MHZ
881.5
MHZ
+5VDC
+24VDC
FIGURE 2.1 Functional Block Diagram
MANUAL510AMPS YAGI-3
MANUAL510AMPS YAGI-3
3.0
GENERAL SPECIFICATIONS
All specifications stated as typical unless otherwise noted. Cellular Specialties, Inc. reserves the right to change these specifications at any time without notice.
Frequency
Pass Band Ripple
Gain @ Zero Attenuation
Gain Adjustment Range
Power Output, (max).
1dB Compression
*Linear
Noise Figure, Typ.
3rd Order Intercept Point, IP3
**Maximum Input Power
VSWR
Propagation Delay
Impedance
Connectors
Power Requirements
Size
Weight
Operating Temperature
Indicator LEDs
Controls
Uplink (Phone to Tower)
824-849 MHz
±1.5db
+57dB+3db
-28db
Downlink (Tower to Phone)
869-894 MHz
±1.5db
+57dB+3db
-28db
+28 dbm
+26.7 dbm
+4.5db
+45dbm
-10dbm
+28 dbm
+25.7 dbm
+4.5db
+45dbm
-10dbm
2.0:1 Max
<1.0 microsecond
50 Ohms
‘N’ Female
120 VAC @ 500mA
15” x 13.5” x 4”
6¾ Lbs., 3 kg
-22 to +118°F, -30 to +48°C
Power, Transmitter On, Uplink Overload, Downlink Overload
Power switch with fuse, AGC override switch, switches for Uplink
and Downlink attenuation from 0-28dB in four dB steps.
NOTES
*Maximum total output power without exceeding the FCC allowable emissions of –13 dBm.
** Maximum safe input power at maximum gain with no damage.
MANUAL510AMPS YAGI-3
4.0
INSTALLATION
Pre-installation Survey
Note:
The Installer should refer to the Safety Precautions, in the
following section, for proper antenna selection and installation
A pre-installation survey should be performed prior to commitment to installation. Measurement of
Received Signal Strength Indication (RSSI) should be recorded throughout the building in all areas
where cell phone coverage is desired. RSSI levels around the exterior of the building as well as on the
rooftop or as close to the point where the exterior antenna will be installed should also be recorded.
RSSI readings at the position where the outside antenna will be installed should be greater than –80
dBm. (E.g. –75dBm) Successful installations may be made with lower readings in some cases.
MANUAL510AMPS YAGI-3
WARNING!
AMPLIFIER DAMAGE WILL OCCUR IF A HANDSET IS
CONNECTED DIRECTLY TO THE IBA OR THE COAX THAT
LEADS TO THE IBA.
The location of the IBA and the interior antennas should be determined through the
use of floor plans of the building in which the system is to be installed. It is important
to locate the IBA at a central location and try to keep the coax runs from the amplifier
to the antennas as short as possible. A maximum length of 150 feet is suggested
although longer runs might be accommodated. This assumes that a coax with loss at
800 MHz of approximately 3.5 dB per 100 feet is used. The coax used should be a
nominal RG-8 type with a flame retardant rating except when installed in space
where moving air (heating and/or cooling) exists. In which case the coax must be
“plenum” rated. For long runs that exceed 150 feet, the use of low loss ½” coax is
desirable. Of primary concern is the isolation between the outside antenna and the
inside antennas.
Important note: A high degree of isolation must be afforded in order to prevent
any re-generative feedback in the system. Feedback of this nature causes the
amplifier to emit a continuous signal of maximum amplitude and could, in
some cases, interfere with normal operation of the cell site. This isolation
should be in the order of 70 dB and is usually obtained by mounting the
outside antenna away from the edges of the roof. The use of window mounts
or other non-rooftop mountings should be avoided.
SAFETY PRECAUTIONS
For INDOOR use, an Omni-Directional Antenna with a maximum gain of 3dBi is
authorized for use with this unit.
Inside antennas must be positioned to observe minimum separation of 20 cm.
(~ 8 in.) from all users and bystanders. For the protection of personnel working
in the vicinity of inside (downlink) antennas, the following guidelines for
minimum distances between the human body and the antenna must be
observed.
The installation of an INDOOR antenna must be such that, under normal
conditions, all personnel cannot come within 20 cm. (~ 8.0 in.) from any
inside antenna. Exceeding this minimum separation will ensure that the
employee or bystander does not receive RF-exposure beyond the
Maximum Permissible Exposure according to section 1.1310 i.e. limits for
General Population/Uncontrolled Exposure.
MANUAL510AMPS YAGI-3
!
For OUTDOOR use, a Directional Antenna up to a maximum gain of 11dBd is
authorized for use with this unit.
The Outside antenna must be positioned to observe minimum separation of
120 cm. (~ 4 ft.) from all users and bystanders. For the protection of personnel
working in the vicinity of outside (uplink) antennas, the following guidelines for
minimum distances between the human body and the antenna must be
observed.
The installation of an OUTDOOR antenna must be such that, under normal
conditions, all personnel cannot come within 120 cm. (~ 4 ft.) from the
outside antenna. In all installations, the antenna should never be mounted
such that the main beam is directed toward an area where workers or
bystanders may be present. Exceeding this minimum separation will
ensure that the worker or bystander does not receive RF-exposure beyond
the Maximum Permissible Exposure according to section 1.1310 i.e. limits
for General Population/Uncontrolled Exposure.
Physical Installation
The coaxial cable discussed above should be pulled from the rooftop location to the
space designated for the amplifier installation. Additional coax should be pulled from
the amplifier to where power splitters are located and thus to the position designated
for the Omni-directional antennas. Usually this is accomplished by using existing
cableways and running the cable above suspended ceilings. In many cases the
Omni-directional antennas can be located above the suspended ceilings however,
when this is not possible, alternatives such as ceiling or wall mounted antennas may
be used.
When mounting the amplifier, take care to avoid areas of high heat or extreme cold.
In general, do not place the unit on or near the top of high ceilings, by heaters or in
cold storage areas.
MANUAL510AMPS YAGI-3
5.0
AMPLIFER ADJUSTMENT
In most cases the IBA will need very little adjustment. After connecting the coax and
powering up the IBA, the signal levels within the previously surveyed areas should be
checked for adequate RSSI and Signal Quality Equivalent (SQE) levels.
Measurements should be made at the perimeter of the building both inside and
outside. It is important that the RSSI levels measured outside the building remain
close to those measured prior to installation of the IBA.
Both the uplink and downlink overload indicators should remain off. If either indicator
is illuminated, the gain of the appropriate link should be reduced.
If the gain of the amplifier needs adjustment the uplink and the downlink may be
adjusted by means of the step attenuators on the top of the unit. Attenuation from 0
dB to 28 dB in steps of 4 dB may be inserted by proper selection of the 4, 8 and 16
dB attenuators. If satisfactory cell (or two-way) phone performance is not obtained
when the phone is in close proximity to the interior antenna it may be necessary to
decrease the gain of one or both of the links.
MANUAL510AMPS YAGI-3
10
6.0
TROUBLESHOOTING
All external cables should be carefully checked for “shorts” and “opens”.
The rooftop antenna should be placed so that line of sight obstructions are
minimized.
If cables and alignment are O.K. it may be necessary to use a spectrum analyzer to
examine the signal environment in which the IBA is operating. The existence of
strong analog signals within the frequency bands can cause problems particularly on
the downlink. In some cases additional filtering might be required to reject these
unwanted signals. Automatic Gain Control (AGC) may be switched on by moving the
leftmost dip switch to the on (up) position.
MANUAL510AMPS YAGI-3
11

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Title                           : Report
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