Westell CSIDSP95255U7C DSP95 255 DIGITAL REPEATER LTEC 700 MHz UPPER C BAND User Manual

Westell, Inc. DSP95 255 DIGITAL REPEATER LTEC 700 MHz UPPER C BAND Users Manual

Users Manual

Download: Westell CSIDSP95255U7C DSP95 255 DIGITAL REPEATER LTEC 700 MHz UPPER C BAND User Manual
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Date Submitted2011-05-23 00:00:00
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Document TitleD960-1049-410 r003 MANUAL DSP2.5HP SINGLE L7-U7C.indd
Document CreatorPDFCreator Version 1.0.2
Document Author: kalbertson

CSI-DSP95-252-L7, CSI-DSP95-252-U7C,
CSI-DSP95I-252-L7, CSI-DSP95I-252-U7C,
CSI-DSP95-255-L7, CSI-DSP95-255-U7C,
CSI-DSP95I-255-L7, and CSI-DSP95I-255-U7C,
-2-
Table of Contents
Product Registration Information ................................................................................................................... 4
Document Purpose / Intended Users.............................................................................................................. 4
Application ........................................................................................................................................................ 4
Radio and Television Interference .................................................................................................................. 4
Safety Guidelines ............................................................................................................................................. 4
Important Safety Information .......................................................................................................................... 5
Terms used in this manual .............................................................................................................................. 5
Product Introduction ........................................................................................................................................ 5
Band Plan and Filter Naming Convention ...................................................................................................... 6
LTE Filter File Naming Convention ................................................................................................................. 6
Functional Overview ........................................................................................................................................ 7
LED Indicator .................................................................................................................................................... 7
Local Communication Interface Ports ............................................................................................................ 8
EIA232 Pin Specifications................................................................................................................................ 8
USB Interface .................................................................................................................................................... 8
Ethernet ............................................................................................................................................................. 8
Monitoring & Alarms ........................................................................................................................................ 9
System Set-Up Considerations ....................................................................................................................... 9
Selection of external attenuators to be used in line with the Antenna Port(s) ........................................... 9
1:1 Port Configuration ..................................................................................................................................... 9
Donor Port ....................................................................................................................................................... 10
Server Port ...................................................................................................................................................... 10
Attenuator Selection Guidelines ................................................................................................................... 10
Mounting the Digital Repeater........................................................................................................................11
Wall Mounting .................................................................................................................................................11
19” Relay Rack Mounting ..............................................................................................................................11
19” Four Post Rack Mounting .......................................................................................................................11
Important Installation Notes .......................................................................................................................... 12
Installation Tips .............................................................................................................................................. 12
Donor Antenna ................................................................................................................................................ 12
Indoor Antennas ............................................................................................................................................. 12
Optional Accessories ..................................................................................................................................... 12
Circuit Operational Description .................................................................................................................... 13
Functional Block Diagram ............................................................................................................................. 13
Mechanical Specifications ............................................................................................................................. 14
Environmental Requirements........................................................................................................................ 14
AC Power Specifications ............................................................................................................................... 14
Operating Power Parameters ........................................................................................................................ 15
Mechanical Drawing ....................................................................................................................................... 16
System Status ................................................................................................................................................. 17
Web based GUI Session ................................................................................................................................ 17
Local Network ................................................................................................................................................. 18
RF Configuration ............................................................................................................................................ 19
Program a Filter .............................................................................................................................................. 19
Remote Network ............................................................................................................................................. 20
SNMP Configuration....................................................................................................................................... 20
System Health ................................................................................................................................................. 21
Install & Upload .............................................................................................................................................. 21
Reboot ............................................................................................................................................................. 22
E-mail Configuration ...................................................................................................................................... 22
Alarm Configuration ....................................................................................................................................... 22
Log Configuration .......................................................................................................................................... 22
Change Password .......................................................................................................................................... 23
Text Menu Interface (Local Access) .............................................................................................................. 23
Terminal Emulation Program......................................................................................................................... 24
Terminal Emulation Set-up ............................................................................................................................ 25
TMI Login......................................................................................................................................................... 26
Telnet Session (Remote Access) .................................................................................................................. 28
Telnet Session Login...................................................................................................................................... 29
Modem Interface (Remote Access with login) ............................................................................................. 30
Additional Tips................................................................................................................................................ 31
Suggested spectrum analyzer setting .......................................................................................................... 33
RF Notes .......................................................................................................................................................... 33
Industry Certifications/Registration Numbers:............................................................................................ 34
Index ................................................................................................................................................................ 35
-3-
Product Registration Information
The serial number may be found on the label on the bottom panel near the power
connectors. Note this number below. Retain this manual, along with proof of purchase, to serve as a permanent record of your purchase.
MODEL NUMBER
SERIAL NUMBER
PURCHASE DATE
POINT OF SALE COMPANY
DISCLAIMER: All information and statements contained herein are accurate to the best of the
knowledge of Cellular Specialties, Inc. (CSI), but Cellular Specialties makes no warranty with respect
thereto, including without limitation any results that 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 users sole risk, without any liability on the part
of Cellular Specialties, Inc. Nothing herein shall be construed as licence or recommendation for
use, which infringes upon any proprietary rights of any person. Product material and specifications
are subject to change without notice. Cellular Specialties’ standard terms of sale and the specific
terms of any particular sale apply.
Document Purpose / Intended Users
The purpose of this document is to provide a step-by-step procedure to help the experienced
technician/engineer install and commission an in-building wireless enhancement repeater system
using CSI’s Digital Repeater. Following the procedures outlined will minimize risks associated with
modifying a live system and prevent service interruptions. This document assumes the technician/
engineer understands the basic principles and functionality involved with Repeater and in-building
systems. It is geared to the practical concerns of the installer.
Application
This guide should be applied whenever a need exists to add Digital Repeater capability to an
existing system or when this capability is being included with a new installation.
Radio and Television Interference
NOTE: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct
the interference at his own expense. In order to maintain compliance with FCC regulations
shielded cables must be used with this equipment. Operation with non-approved equipment or unshieled cabled is likely to result in interference to radio & television reception.
Changes and Modifications not expressly approved by Cellular Specialties can void your
authority to operate this equipment under Federal Communications Commissions rules.
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 Digital Repeater system is designed to operate from 100-240 VAC and should always
be operated with the ground wire properly connected. Do not remove or otherwise alter the
grounding lug on the power cord.
Explosive Atmospheres
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. Use of a suitable
lightning arrester, such as CSI’s model number CSI-CAP, is very strongly recommended.
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, Toll Free (USA) 1-877-844-4274.
-4-
Important Safety Information
Antennas used for the purpose of radiating signals indoors are limited to a maximum gain of 3 dBi. The outdoor antenna used
for the purpose of communicating to the wireless infrastructure is limited to 14dBi gain, or any combination of gain and loss that
equates to 14dB at input. Each antenna must be positioned to observe minimum separation requirements from all users and
bystanders. The following guidelines should be used when considering separation distances.
INDOOR antennas must be placed such that, under normal conditions, personnel cannot come within 122 cm (~4.0 ft.)
from any inside antenna. Adhering to this minimum separation will ensure that the employee or bystander cannot exceed RF
exposures beyond the maximum permissible limit as defined by section 1.1310 i.e. limits for General Population/Uncontrolled
Exposure.
OUTDOOR antenna must be positioned such that, under normal conditions, personnel cannot approach closer than 183 cm.
(~6 ft.). A directional antenna having a maximum gain of 14 dBi is used, precautions should be taken to prevent personnel from
routinely passing through the main radiation beam at a distance closer than specified.
Terms used in this manual
AGC= Automatic Gain Control
APC= Automatic Power Control
AUI= Attachment Unit Interface
ERP= Effective Radiated Power
FPGA= Field Programmable Gate Array
LED= Light Emitting Diode
CPU= Central Processing Unit
OIP3= Third-Order Intercept Point
CSI= Cellular Specialties, Inc.
DAS= Distributed Antenna System
DHCP= Dynamic Host Configuration
Protocol
DSP= Digital Signal Processing
EEPROM= Electrically Erasable
Programmable readonly Memory
RF= Radio Frequency
SBC= Single board Computer
SNMP= Simple Network Management Protocol
TMI= Text Menu Interface
USB = Universal Serial Bus
UHCI = Universal Host Controller Interface
Product Introduction
Cellular Specialties, Inc. (CSI) developed the DSP85-252, DSP85-255, DSP85I-252 and DSP85I-255 digital repeaters for use
within enclosed structures where sufficient signal from local cell sites to operate cell phones is unavailable. Adequate signal
must be available outside the structure as a prerequisite to achieving in-building coverage. The Digital Repeater is connected to
an external antenna, usually on the roof, and to one or more internal antennas placed strategically throughout the area where
wireless service is desired.
The external antenna typically is directional, such as a “yagi”. Internal antennas are typically omnidirectional, although various
other types may be used depending on the coverage application. The CSI DSP Repeater amplifies both the “uplink” (phone to
tower) & “downlink” (tower to phone) signals thus facilitating communications to and from the intended wireless infrastructure.
With a maximum total of +85dB nominal gain on both the up and down links, gain can be adjusted over a range from +53.5dB to
+85dB in 0.5dB steps. Control of the repeater is achieved utilizing a computer connected to com port 1 or 2 or via a Crossover
Ethernet cable connected to the Ethernet port.
A specific filtering process modifies each amplification chain. This process digitally converts the assigned spectrum and then applies digital signal processing (DSP) techniques. DSP is used to create passbands that selects the RF energy passing through
either the uplink or downlink paths. After the digital processing is complete, the information is converted back to an analog signal
that is applied to the remaining stages of amplification. The resulting signals emitted by the repeater are specific to the network
service providers’ requirements. If these requirements change, only the DSP configuration parameters need change in order to
adapt. Configuration parameters are created at the factory and supplied as files that may be downloaded to the repeater. The
filter set configurations stored in memory determine the unit’s adaptability to various field applications. The following pages describe the Cellular and PCS band plans as well as the convention CSI uses to identify and store the files that make up the filter
set. All CSI repeaters are shipped with an active filter set that is programmed according to the ordering parties’ specifications. In
most cases, the installer will not be required to program a filter.
-5-
Band Plan and Filter Naming Convention
LTE Lower A, B & C Band Plan
Up Link
(MHz)
Down Link
(MHz)
698
728
704
LTE Upper C Band Plan
710
A0
B0
C0
UL698-704
DL728-734
UL704-710
DL734-740
UL710-716
DL740-746
A1
A3 A4 A5 A6 A7
781.5
787
Down Link
(MHz)
746
751.5
757
C0
C1
UL776.5-786.5
DL746.5-756.5
C2 C3 C4 C5 C6
C7
UL715-716
DL744-745
UL714-715
DL744-745
UL709-710
DL739-740
UL708-709
DL738-739
UL700-701
DL730-731
UL702-703
DL732-733
776
UL776-787
DL746-757
UL698-699
DL728-729
UL703-704
DL733-734
Down Link
(MHz)
Up Link
(MHz)
UL710.5-715.5
DL740.5-745.5
B3 B4 B5 B6 B7
UL699-700
DL729-730
UL701-702
DL731-732
Up Link
(MHz)
C1
B1
UL704.5-709.5
DL734.5-739.5
B2
716
746
740
734
UL698.5-703.5
DL728.5-733.5
A2
UL713-714
DL743-744
UL707-708
DL737-738
UL712-713
DL742-743
UL706-707
DL736-737
UL711-712
DL741-742
UL705-706
DL735-736
UL704-705
DL734-735
UL710-711
DL740-741
LTE Filter File Naming Convention
Note: All Variant/Guard Band designators other than 0 are user defined
custom filters.
-6-
Up Link
(MHz)
Down Link
(MHz)
Functional Overview
The CSI-repeater incorporates the following features for convenient operation, access, protection, and control.
•
Network Configuration and Control using either a webpage style GUI through
any standard browser or a menu driven user interface using the serial port.
•
(Note: GUI does not require Internet access.)
User Gain Control (affects all passbands)
•
•
•
•
•
•
•
•
•
•
•
•
Automatic Gain Control
Automatic Power Control
Oscillation Protection
Over Drive Protection (P.A. limiting)
Under/Over Voltage Protection
Fault Protection
Alarm Notification - Local/Remote
Upgrade Support - Local/Remote
External Interfaces - USB/Ethernet/Serial
Re-loadable filters - Local/Remote
Web-based monitoring and control - Local/Remote
Persistent Status and Error information
LED Indicator
Automatic safety precautions are built into the amplifier system. In the case of a catastrophic system event, a shutdown circuit is incorporated that will disable all emissions should the uplink input or downlink input be overdriven or should an oscillation or output overpower
event occur. The amplifier will periodically attempt to recover from the detected condition automatically. Warning light indicators are as
follows:
When a boot up is complete and no alarm conditions exist, the LED indicator will be illuminated green.
Should a fault condition develop the LED will illuminate red and the user may check the status page
of the GUI for the nature of the fault.*
*Note:
During Power up, the repeater will require a approximately three minutes for
the internal computer to boot up. During this time the LED on the front panel may light
and go out several times.
Do not unplug the unit while it is in the boot up process!
-7-
Local Communication Interface Ports
To allow monitoring and control, the repeater is equipped with four ports that provide external communication access (1 Ethernet CAT5, 2 DB-9 serial, and 1 USB). The Ethernet, CAT-5 port is provided as a primary communications port to the PC. One serial interface
provides communications to local PC and the second to an external modem when provided. The USB interface provides a means to
download files from a memory device and may also be used by an external modem. The DB-9 pin assignments conform to the standard
Electronic Industries Association (EIA232) specification. A diagram of the pin descriptions is provided on this page for reference.
Connecting a null modem cable to one of the COM ports and using a terminal emulation program with a PC will allow communication to
the control processor’s Text Menu Interface (TMI). See command line interface section for further detail.
EIA232 Pin Specifications
The diagram above is for reference only, it’s intended to provide a quick source for pinout information in the event it should be necessary to adapt your serial cable because of an unusual connector
configuration. In the vast majority of cases this information will not be needed.
USB Interface
The Universal Serial Bus (USB) interface conforms to Intel’s Universal Host Controller Interface (UHCI)
version 1.1 dated March 21, 1996. This interface will support data transfer rates up to 12 Mbps and can
be used for software updates and filter file uploads.
Ethernet
The Ethernet AUI conforms to IEEE 802.3 and is capable of supporting 10/100 Mbps communications
speeds. This port is used to provide access to the GUI.
-8-
Monitoring & Alarms
There are no physical connections provided to specifically communicate system or alarm status. This information is embedded in the
information accessible via the communication ports described earlier.
System Set-Up Considerations
All cables should be checked for shorts and opens. Also verify that there are no cables with loose or poor connections. RF leakage could
cause oscillation to occur under some conditions.
The rooftop antenna (Donor Antenna), if directional, should be checked for proper alignment along the calculated compass heading.
Typically, the directional antenna would be aimed at the same site that your handset uses, but it may not always be so. It is critical the
installer contact the service provider for information on, and approval of, the site he or she has selected before
the system is turned on.
If cables and alignment are acceptable and a problem persists, it may be necessary to use a spectrum analyzer to examine the signal
environment in which the unit is operating. The existence of strong adjacent channel signals within the frequency band(s) can cause the
AGC to reduce the amplifier’s gain or cause alarms. In some cases additional filtering or attenuation might be required to reject these
unwanted signals. In some instances, the donor antenna can be reoriented horizontally, to place the interference source in an antenna
pattern “null”. There also may be some cases where the interference from outside signals is so great that they cannot be filtered or otherwise reduced or eliminated without expensive and possibly prohibitive measures. In these cases it may not be practical to use the CSI
repeater for providing coverage to these sites.
Selection of external attenuators to be used in line with the Antenna Port(s)
STATUS 1
COM
USB
STATUS 2
LOW/COM
HIGH
LOW/COM
HIGH
ETHERNET
SERVER
DONOR
1:1 Port Configuration
Input: One dual band duplex port, from the dual band donor.
Output: One dual band duplex port, to the DAS.
-9-
Donor Port
If a CSI repeater is installed in an area with very strong desired and/or undesired signals, it is important to ensure that the overall signal
levels are optimized to be within the best operating range of the repeater. Additionally, de-sensing of a nearby base station site must be
avoided. These goals can be accomplished by properly attenuating the antenna port(s) in the path of the donor antenna(s). In effect,
one can imagine that the particular repeater deployment is electrically moved farther from the base station using attenuators that are
equivalent to increasing the path loss from the donor antenna to the base station. The following potential outcomes result from the use
of attenuators on the donor port(s) of the unit: Uplink output power, as reported by the repeater, is reduced by the value of the attenuation, protecting nearby base stations. Downlink signal to noise ratio is high at the point of the attenuator, resulting in slight but negligible
reduction in downlink performance. Other performance is essentially unchanged.
Server Port
Server port attenuation may also be necessary, particularly where a powered DAS is present. The selection guidelines below apply to
both server and donor ports. In order to properly measure uplink signal strength, a signal generator should be used. If a signal generator
is not available, placing a test call while under the server antenna with the least path loss to the repeater should provide reasonable data.
The following potential outcomes result from the use of attenuators on the server port(s) of the CSI repeater: Downlink output power, as
reported by the unit, is reduced by the value of the attenuation. Uplink incoming power from the DAS is reduced, along with potentially
strong and/or harmful out-of-band signals (including noise) that are generated by the DAS.
Attenuator Selection Guidelines
Accurate attenuator values need to be chosen to ensure that the maximum total power (higher of Composite or In-Band Input) applied to
the donor and server port(s) does not exceed the following thresholds:
Input Signal
Max Gain
Input Signal
<-45 dBm
85 dB
-32.2 dBm
-44.3 dBm
84 dB
-31.4 dBm
-43.6 dBm
83 dB
-30.6 dBm
-42.9 dBm
82 dB
-29.8 dBm
-42.2 dBm
81 dB
-29 dBm
-41.5 dBm
80 dB
-28.2 dBm
-40.6 dBm
79 dB
-27.4 dBm
-39.7 dBm
78 dB
-26.6 dBm
-38.8 dBm
77 dB
-25.8 dBm
-37.9 dBm
76 dB
-25 dBm
-37 dBm
75 dB
-24.4 dBm
-23.8 dBm
-36.2 dBm
74 dB
-35.4 dBm
73 dB
-23.2 dBm
-34.6 dBm
72 dB
-22.6 dBm
-33.8 dBm
71 dB
-22 dBm
-33 dBm
70 dB
*We recommend padding this level due to potential for fluctuating signal.
Max Gain
69 dB
68 dB
67 dB
66 dB
65 dB
64 dB
63 dB
62 dB
61 dB
60 dB
59 dB*
58 dB*
57 dB*
56 dB*
< 55 dB*
-25 dBm is the maximum input signal level that should be applied to the repeater, even if the gain is lower than 55 dB.
Input signals exceeding these thresholds will result in composite input attenuation, called “ADC Protect” (Analog to Digital Converter
Protection). Output power is reduced whenever the above thresholds are exceeded by reducing the gain by 1dB for each 1 dB that the
threshold is exceeded. ADC Protect should not be confused with AGC (Automatic Gain Control), which reduces gain to prevent In-Band
(measured) output power from exceeding the specified maximum output level. To determine the total power applied to the donor and
server ports, please reference the “Composite Input” values as reported in the Web (“System Status”) or Menu (“Link Status”) interfaces
(depicted and explained later in this manual).
Large delta’s between in-band and composite input signals:
Care should be taken to isolate the best donor site to ensure the least possible delta between in-band and composite downlink signals. If
the (downlink) composite input exceeds the in-band input by more than 3 dB for the LTE band the maximum output power will be reduced.
-10-
Mounting the Digital Repeater
The following diagrams illustrate the methods for mounting the repeater in a typical wall or rack installation.
Brackets provided serve for both options.
Wall Mounting
Step 1: Install the wall mount brackets
as shown in the drawing to the right.
Step 2: Mark the location of the wall anchoring
holes and drill. The wall anchoring
system you use for the repeater will
need to be able to support at least 46
lbs/ 21kg. Install wall anchors and
hang repeater as shown.
19” Relay Rack Mounting
Mount the repeater as shown and secure
front panel with screws. Note: the CSI digital
repeaters must be supported in the 19” Relay
Rack system with a shelf. Do not rely on the
front panel mount exclusively to support
all the weight of the unit.
19” Four Post Rack Mounting
Install slid brackets on repeater as shown in
the tapped holes provided. Slid repeater into
the receiving brackets and secure with screws.
The repeater must be supported in the rack
system with slide rail. Do not rely on the
front panel mount exclusively to support
all the weight of the unit.
-11-
Optional Accessories
A complete line of accessories is available from Cellular Specialties, Inc. Check with your CSI distributor for any additional items
needed. Below are just a few examples suitable for most in-building needs.
•Outside Donor Antenna
Panel - model number: CSI-AP/698/2.2K/7-10
•UPS
Battery backup, 2 hr Single band
•Inside Omnidirectional Antenna
1 hour dual band - model number: CS48-985-600
Quad-band - model number: CSI-AO/700/2.7K/3
Battery backup, 4 hr Single band
•Directional Couplers
6dB - model number: CSI-DC6/700-2.7K/N
2 hour dual band - model number: CS48-985-601
10dB - model number: CSI-DC10/700-2.7K/N
15dB - model number: CSI-DC15/700-2.7K/N
•Cross Band Couplers
Quad band Rack Mount: CSI-CM250-7/C/AW/P
20dB - model number: CSI-DC20/700-2.7K/N
30dB - model number: CSI-DC30/700-2.7K/N
(700 LTE, Cell, AWS and PCS)
Quad band Wall Mount: CSI-CBC/696-2170/N
(700 LTE, Cell, AWS and PCS)
Tri band Rack Mount: CSI-CM250-U7C/C/P
•Power Dividers
2:1 - model number: CSI-SPD2/700-2.7K/N
3:1 - model number: CSI-SPD3/700-2.7K/N
(700 Upper C LTE, Cell and PCS)
Tri band Wall Mount: CSI-CBC21/740-1990/N
(700 Upper C LTE, Cell and PCS)
Tri band Rack Mount: CSI-CM250-L7AB/C/P
(700 Lower A/B LTE, Cell and PCS)
Tri band Wall Mount: CSI-CBC21/696-1990/N
(700 Lower A/B LTE, Cell and PCS)
4:1 - model number: CSI-SPD4/700-2.7K/N
•Grounding Kit - model number: CSI-GKIT
•Lightning Arrestor - model number: CSI-CAP
Important Installation Notes
•
Inadequate isolation between the outside and inside antennas may cause regenerative feedback in the system. This feedback can
cause the amplifier to emit a continuous signal at maximum amplitude and, in some cases, interfere with normal operation of the donor
site. Careful consideration of the layout and placement of the system is imperative to minimize this possibility and to minimize the amount
of signal leaking from the building. See installation tips below for general guidelines.
•
The installer should refer to the Safety Guidelines section on page 4 and the Important Safety Information section on page 5 for
proper antenna selection and installation. To avoid serious injury or death and damage to the repeater, do not install donor or server
antennas near overhead power lines or high power components. Allow enough distance so that if antennas should fall they will not come
in contact with those components.
•
Close proximity to the donor or server antennas with the repeater in operation may expose the user or installer to RF fields that
exceed FCC limits for human exposure.
WARNING! AMPLIFIER OR HANDSET DAMAGE MAY OCCUR IF A HANDSET IS CONNECTED DIRECTLY TO THE REPEATER
OR THE COAX THAT LEADS TO THE REPEATER.
Installation Tips
Donor Antenna
1.
2.
3.
4.
5.
Accurately determine the azimuth to the donor cell site . Obtain the donor site information and approval from the
service provider/carrier.
Ensure that the radiation path to the donor cell site is as unobstructed as possible.
Mount the donor antenna at or toward the edge of the roof, in the direction of the donor site. Try to avoid having the RF
signal from the donor pass above the location(s) of the service antennas. Normally the service antennas will be behind
and below the donor antenna if viewed from above. This approach will help avoid interference and feed back both, to and
from the service antennas.
Normally mounting the donor antenna higher will allow a less obstructed path to the donor site. However, in high traffic
metro areas avoid mounting the donor antenna any higher than necessary as the quality of the donor signal may start to
become less stable and it is more likely to encounter adjacent channel interference.
When possible shield the donor antenna’s back side by locating it so that any HVAC units and/or penthouse structures are
behind the antenna relative to the donor cell site location.
Indoor Antennas
1.
2.
Use omnidirectional antennas (see optional accessories) indoors, and locate them centrally with respect to the intended
coverage area to minimize signal leakage to the outside. Use directional antennas indoors only in special cases when higher
gain and directionality would be helpful and RF exposure limits will not be exceeded.
To avoid repeater uplink overload and gain limiting mount the indoor antennas away from areas where mobile subscribers
frequently use their phones such as desks or dispatch areas.
-12-
Indoor Antennas continued
3.
To determine the quantity and locations of indoor antennas, use an appropriate phone’s signal meter to determine areas of
weak signals. These are the approximate areas where indoor antennas may be needed. Also be aware the signal from an
indoor antenna, in most cases, can be expected to penetrate about two standard office sheetrock type walls to reach users.
After two walls or if the walls are made of other materials, it may be necessary to split the available signal and add more
antennas.
Circuit Operational Description
The repeater uses a single down-conversion/up-conversion scheme. There are multiple RF amplifier stages prior to each downconverting mixer. The down-converting mixers are followed by a single IF amplifier. A Digital Signal Processor block then processes
the resultant digitized IF signal that was previously generated by an Analog-to-Digital Converter. The processed (filtered) digital signal
is fed to a Digital-to-Analog converter and then up-converted to RF. A driver amplifier and a final power amplifier make up the final
gain stages before application to the diplexer. The maximum total system gain (diplexer input to diplexer output) is nominally 85 dB for
either the downlink or the uplink paths with both links having independent manual and automatic gain controls (AGC).
AGC reacts to analog power detection on both the input and output of the uplink and downlink RF chains. A control algorithm continuously monitors these detected values and dynamically adjusts various gain stages such that the net system gain value, entered
manually, is maintained without either exceeding FCC parameters or overdriving the A/D converters.
Upon detection of oscillation the unit will shut down. After a “short duration” of 30 seconds the unit will attempt normal operation. If no
continued oscillation is occurring the unit will stay on. However, if oscillation is still occurring, the repeater will remain shut down and retry
1 additional time in the “short duration” loop. If after these two “short duration” retries, the oscillation is still detected, it will turn off again
and wait a “long duration” period of 10 minutes. If after 6 “long duration” retries, oscillation continues, the unit will go into a “disable
duration” of 24 hours. It will continue in the “disable duration” loop and retry every 24 hours.
LED on the front panel display provide immediate visual indications of the unit’s primary power and major or minor alarm status. The
repeater features automatic shutdown protection, as a safety measure, should excessive drive be applied to the input or an oscillation
condition occur. When in a protected mode, a control algorithm determines the appropriate method of recovery to a normal, previously
defined state, or maintains the protection until manually reset.
Functional Block Diagram
-13-
Mechanical Specifications
Parameter
Specification
Notes
Repeater Size
Height
5.25 in.
Width
19.00 in.
Depth
20.28 in.
Weight
3RU
31.0 lbs / 14.1 kg
Thermal Management
Fan Cooled
Surface Coating
Powder Coat
Color
Satin Black
AC Power Specifications
Parameter
Specification
AC Voltage
100 - 240 VAC
AC Current
2.0 Amps
1.0 Amps
AC Power Frequency
47 - 63 Hz
Heat Output
Notes
External Power Supply
@ 120 VAC
@ 230 VAC
700 BTU/Hr
Environmental Requirements
Parameter
Temperature Range
Relative Humidity
Specification
Notes
0° to 50° C
(32° to 122° F)
5% to 95%
-14-
Non-condensing
Operating Power Parameters
Parameter
Maximum RF input Power
without damage
Linear Gain
Pass Band Ripple
Automatic Gain Control
Manual Gain Control
Specification
Notes
+10 dBm
85 dB
Factory Calibrated Gain
+/-1.5 dB
30dBmax range
53.5-85 dB
Linear Output Power
(CSI-DSP85-252 Down Link)
+33 dBm max
LTE +32 dBm
(CSI-DSP85-252 Up Link )
+ 30dBm max
LTE +29 dBm
Linear Output Power
(CSI-DSP85-255 Down Link)
+ 37 dBm max
LTE +36 dBm
(CSI-DSP85-255 Up Link )
30dBm max
LTE +29 dBm
In 0.5 dB steps
In 0.5 dB steps
OIP3
(CSI-DSP85-252 Down Link)
(CSI-DSP85-252 Up Link)
+ 51 dBm
(CSI-DSP85-255 Down Link)
+ 57 dBm
(CSI-DSP85-255 Up Link)
+ 41 dBm
+ 41 dBm
Noise Figure (Avg)
6.0 dB
Input VSWR (Typ)
<2.0:1
Propagation Delay
<2.5 usec
Measured with 2 CW tones
at 14 dBm/tone
Measured with 2 CW tones
at 14 dBm/tone
At Maximum Gain
RMS Vector Error (EVM)
3% max
TDMA,EDGE,W-CDMA,CDMA2000
CDMA RHO
0.98 min
CDMA2000, 1x-EVD0
Connectors
N-Female
Spurious Emissions &
Applicable Documents
FCC
Industry Canada
-13 dBm max
-13 dBm max
-15-
Per FCC part 2, 22, 24
Mechanical Drawing
STATUS 1
COM
USB
STATUS 2
LOW/COM
HIGH
LOW/COM
ETHERNET
SERVER
-16-
DONOR
HIGH
Web based GUI Session
Primary access to the repeater is gained using a LAN connection and a web browser program
such as Firefox by Mozilla, or Internet Explorer from Microsoft. The repeater ships with the default
IP address of 192.168.1.100, but it can be changed later if required.
If connecting directly to the repeater from a laptop or PC with a crossover CAT-5E cable or over a
LAN the user types the IP address of the repeater into the browser address line to connect. (Note:
Most users will need to update the TCP/IP settings on their computer to enable connection to a
host that has a static IP. Select “Use the following IP Address” and enter the IP Address as follows:
192.168.1.x, where “x” = any number from 2 to 254 inclusive other than 100. The subnet mask is
255.255.255.0. Questions pertaining to these settings should be referred to the user’s IT department or you may refer to the Additional Tips section at the end of this manual.) When connection
is made the user will be prompted for a user name and password. For the purpose of the GUI session, the default user name is webuser and the password is csi1234. This can also be changed
as required. Internet access is not required to use the GUI. (Note: If you are connecting using a
laptop, verify that your Ethernet port is powered. Some laptops will not allow Ethernet connection
when on battery power. If this is the case with the laptop you are using you will need to plug it in or
update the power settings.)
System Status
When login is complete the user is brought to the system status page. The links shown in the
navagation box on the left are activated by clicking on them.
-17-
Local Network
If the user selects Local Network from the System Status page, the following screen is displayed
and from here network configuration can be modified as required. The default is set to Static. Check
with your IT department for explanation and approval of the DHCP and DHCP Server options you
plan to use before you select them. *NOTE: In units with software version 2.2.4 or prior, only letters,
numbers and underscores are acceptable nomenclature. In units with software version 2.3.0 and up,
Underscores are not acceptable; however, hyphens are acceptable.
After any changes are made press the refresh button to review the fields and ensure the change
made is correct. Note: changing network settings will cause the current TCP/IP connection to fail
because the change will take effect immediately. From here the user may return to the System Status
screen or click on the other options.
-18-
RF Configuration
If the user would like to modify RF configuration click on the words RF Configuration in the navigation
box and the screen below is displayed.
The user inputs the gain value desired. Gain values from 53.5 dB to 85.0 dB may be selected. The
repeater will not allow the user to set values outside this range. If a new filter set is required, the new
filter may be selected from the “Program a Filter page” below.
Program a Filter
The user may select the desired filter by pressing the band/sub-band and modulation selection
buttons. Undesired bands/sub-bands if lit will require the user to manually “deselect” them before
programming. Pressing the Program button will complete the selection and load the desired filter.
The time required to complete this process will take just a few moments. Note: If the filter desired
is not currently in the unit, additional filters along with instructions on how to load them are available
by contacting CSI.
-19-
Remote Network
If the repeater includes a USB modem kit, click on Remote Network in the navigation box and the
screen below is displayed. Highlight the carrier on whose network the repeater and modem will
be configured and click the Change Settings button. Refer to the documentation included with the
modem kit for additional information on configuring the modem. If the repeater is connected to an
ethernet device for remote access and/or monitoring, this feature must be disabled.
SNMP Configuration
To change SNMP settings click SNMP Configuration in the navigation box, the screen below will be
displayed. If the user is not well versed in Simple Network Management Protocol he or she should
check with their IT professional for proper setting requirements.
-20-
System Health
By clicking System Health the current state of the repeater can be reviewed.
***
****
***The user may clear LED indicators, alarms and the Event Log by clicking the Clear Log button.
**** If required, visit the “System Health” screen and click on “Trigger Test Alarm” and wait for
confirmation that the Service Provider representative that is responsible for monitoring the repeater
has been notified of the alarm. Be sure to “Clear All Logs” prior to logging out of the Web Interface.
Install & Upload
Should a software install or upgrade be needed it can be done from the Install & Upload screen
shown below. As with the other screens it can be reached by clicking the words in the
navigation box. Contact CSI for updates and instructions.
-21-
Reboot
Alarm Configuration
If a reboot of the repeater becomes necessary click on the Reboot option in the
navigation box and the Reboot page is
displayed.
The Alarm Configuration page allows the user to specify what
events will trigger an alarm.
*NOTE: Letters, numbers & hyphens are the only acceptable
nomenclature for the Location field and hyphens may not be
used as the first or last character.
E-mail Configuration
E-mail Configuration page allows the user to enter up
to five E-mail addresses to which the repeater can send
specified alarm messages when the repeater is connected
via ethernet or wireless modem and E-mail Alarm Notification or Remote Networking are enabled. *NOTE: In all
fields the software will not allow the user to enter invalid
characters.
Log Configuration
The Log Configuration page provides the user with the means to modify
three aspects of how log files are created and stored as shown below.
-22-
Change Password
By clicking on the Change Password link the user is brought to the Change Password page. From here he or she can quickly
and easily reset the password for the unit. A word of warning here be careful when setting the new password. If you forget
what you set your password to you’ll need to contact CSI at 1-877-844-4274 for assistance.
To end the session exit the browser, the user will be automatically logged out.
Text Menu Interface (Local Access)
Local access to the repeater TMI, also known as the console interface, is made by connecting a
serial cable (optional), as shown in figure 1, from the serial connector of the laptop to either of the
serial ports on the bottom end panel of the repeater. These connectors are labeled COM 1 and COM
2. In some cases, if the gender of the connector is not the same as shown in figure 1, a null modem
adapter (optional) as shown in figure 2 may also be required.
Figure 1
Figure 2
-23-
Terminal Emulation Program
Many terminal emulation programs will work if properly configured. In the following description,
“TeraTerm” is used to establish the TMI session. This program is readily available via the Internet
and is free from Ayera Technologies at:
http://www.ayera.com/teraterm/
TeraTerm Pro Web works on Windows 95/98, 2000, XP. Here is the latest TeraTerm Pro Web
release:
Version 3.1.3, October 8, 2002. ttpro313.zip
When the program is started, the following screen is displayed.
Select the Serial radio button and press OK as shown below.
Note: It may be necessary, in the System Properties section of the control panel; using Device
Manager to determine what COM port your computer uses for the communications port. In this
case it is COM 1. This is not to be confused with the serial port on the bottom panel of the repeater
labeled COM 1.
-24-
Terminal Emulation Set-up
Pressing “OK” will open up a blank dialog screen. Go to the setup dropdown menu and
select Serial port to make changes to the serial port setup.
Configure the terminal program for the correct COM port, in this case COM 1 and 115200
baud rate as shown below.
-25-
TMI Login
After completing the serial port changes (pressing the enter key will be required to complete the action) the user will be prompted for a user name and password. The default user name is “user”. The
password is “csi1234”. After entering the password and pressing return the TMI main menu will
appear. Note: by default the Set Parameters option is disabled. To re-enable the user will press 1 and
will be prompted for a user name and password. The default user name is csi and the password is
csi1234.
The actions displayed
are self-explanatory.
Pressing “1” will
continue to expand
this session screen
and allow the following
parameters to be set.
-26-
Each “Set Parameter” selection, when chosen will be expanded to allow changing or setting of that
parameter. For example from the Link Configuration menu on the previous page, selecting 1 - Adjust
Gain will display the menu shown below.
After selecting option 1, downlink, the current user gain is displayed and the option to change it is
accomplished by typing the desired gain at the prompt. The user is then returned to the previous
menu.
-27-
All the other options operate in much the same way. Some of the options will offer the user additional selections and will be self-explanatory. Below is one example of these additional options, the
one shown below is the result of selecting (3) Filter Programming.
Note: Graceful session termination is important. Use Disconnect under the file dropdown menu to
terminate a session, otherwise the port may become disabled and force the system to be rebooted.
Telnet Session (Remote Access)
Remote access to the repeater may be gained through a LAN connection and a terminal emulation program for TCP/IP. As with the serial connection, many terminal emulation programs will
work, if properly configured. In the following description, “TeraTerm” is used to establish the Telnet
session. Also, it will be required that the network configuration of the computer and the repeater
being controlled be set up with the same Sub Net and Sub Net Mask in order to establish a link.
In other words, the IP addresses of both the computer used and the repeater must use the same
group of IP address number sets. For example, the repeater ships with the default IP address of
192.168.1.100 and a Sub Net Mask of 255.255.255.0. In order to connect, the computer to be
used for the link would normally need an IP address of something like 192.168.1.12 with a Sub
Net Mask of 255.255.255.0, the same Sub Net Mask as the repeater. In this example note: the last
digit of the IP address may be any number except 1,100 and 255. Configuring your PC is normally
fairly straight forward but it does vary somewhat with the operating system involved. If you require
assistance, contact your IT department and they will be able to set up your PC for you or you may
review the Additional Tips Section at the end of the manual.
When the TeraTerm program is started, the following screen is displayed. Change the default
host IP address to the IP address of the repeater to be controlled. In the case of a new install, the
default address is 192.168.1.100 and has been assigned at the factory. Select the service Telnet.
The TCP Port must be 23.
-28-
Telnet Session Login
Pressing the “OK” button will bring the user to the following screen, which will require the user to
log in. The default user name is “user”. The default password is “csi1234”.
In the field after the prompt type the user name and password. After typing the password press the
enter key and the main menu will be displayed as shown next.
-29-
Telnet and serial sessions both provide access to the same Text Menu Interface. We have already
shown many of the options available and all are self explanatory, so they will not be repeated.
Modem Interface (Remote Access with login)
A modem can also be used to gain remote access to the unit provided the repeater has been properly equipped. A selection of modems is available as an option. If the modem requires a SIM card
for activation, special requirements must be met for the SIM card to become fully functional, contact the service provider. In addition, an IP address must be obtained and entered into the repeater.
Once the modem has been installed and activated, it can be accessed from any terminal emulation program just as in the serial and Telnet examples provided earlier. Access response time will
depend on many factors, some of which are:
•
Quality of the connection (RF signal in the case of wireless modems)
•
Technology (CDMA, EDGE, GPRS, etc.)
•
Network congestion (Throughput)
When a connection has been established, the same login screen shown in both the serial and
Telnet examples is presented.
-30-
Additional Tips
Instructions to change TCP/IP settings on your Windows computer.
Click in the Network Connections Icon in the Control Panel. See below.
Right click on Local Area Connection - and select “Properties”.
Scroll down to “Internet Protocol (TCP/IP) and click on the “Properties” button.
-31-
If you are set up to use DHCP, the window shown below will be displayed.
Select “Use the following IP address:” and enter “192.168.1.2.” The subnet mask
should automatically populate to “255.255.255.0”.
Nothing else will need to be chosen or entered. Click “OK”, then “OK again and
retry connection.
A crossover Ethernet cable (supplied) must be used for Web Interface access.
As a reminder, you must verify the Ethernet port on your laptop is powered. If
your laptop is on battery power, the Ethernet port may be inactive by default. If
this is the case simply plug in the laptop to a 110vac source or change the power
settings to enable the Ethernet port when the laptop is using battery power.
-32-
Suggested spectrum analyzer setting
When troubleshooting RF issues, and when surveying challenging RF environments, it’s important to have a spectrum analyzer capable of measuring the frequency that you are working with. An attenuator should be used
to protect the input, when connected to a source of RF power such as the
repeater or a powered DAS.
Both Uplink and Downlink should be measured. Downlink should be
measured on the donor cable and at the output (server) port of the powered
up repeater, and Uplink at the lead from the DAS (on fiber/powered DAS’s,
where the lead would connect to the server port on the repeater) and at
the donor port with the repeater powered up. Measurements may also be
necessary at server antenna locations. Your spectrum analyzer will need to
be equipped with a whip antenna for this.
Resolution Bandwidth (RBW) should be set at 200 kHz for GSM and 1 MHz
for CDMA. If you cannot select these values, the closest available values
should be used. Video filter should be about one tenth of RBW. Other
settings like span are whatever is appropriate. One should also make sure
that there are no signals above the top of the screen.
If you cannot see an adjacent out of band signal when using the 1 MHz
RBW filter, you can decrease the RBW, to see the close-in-frequency signals. Be sure to set the RBW back when you want to measure the power
level.
RF Notes
To prevent overload of the DSP input stages, the maximum measured level of
in-band or out of band signals should be less than -50 dBm when the DSP gain
is set to 85 dB, -40 dBm when set to 75 dB, etc. This applies when there is one
dominant signal and applies TO BOTH THE DOWNLINK AND UPLINK. If there
are two dominant signals, and the gain is set to 85 dB, then the level of each
signal should be kept to less than -53 dBm. With three signals, each should be
less than -55 dBm. With ten signals each should be less than -60 dBm. This latter reduction prevents the composite power of the multiple signals from exceeding an acceptable level. Add fixed attenuators in line with the donor antenna
line/DAS feed to keep signals below the levels indicated above.
-33-
One Year Limited Warranty
Seller warrants that its products are transferred rightfully
and with good title; that its products are free from any lawful security interest or other lien or encumbrance unknown
to Buyer; and that for a period of one year from the date of
installation or fifteen months from the date of original shipment, whichever period expires first, such products will be
free from defects in material and workmanship which arise
under proper and normal use and service. Buyer’s exclusive
remedy hereunder is limited to Seller’s correction (either at
its plant or at such other place as may be agreed upon between Seller and Buyer) of such defects by repair or replacement at no cost to Buyer. Transportation costs in connection
with the return of products to Seller’s plant or designated
facility shall be paid by Buyer. The provisions of this warranty
shall be applicable with respect to any product which Seller
replaces pursuant to it. SELLER MAKES NO WARRANTY,
EXPRESS OR IMPLIED, OTHER THAN AS SPECIFICALLY
STATED ABOVE. EXPRESSLY EXCLUDED ARE THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
PURPOSE. THE FOREGOING SHALL CONSTITUTE ALL OF
SELLER’S LIABILITY (EXCEPT AS TO PATENT INFRINGEMENT) WITH RESPECT TO THE PRODUCTS. IN NO EVENT
SHALL SELLER BE LIABLE FOR SPECIAL, CONSEQUENTIAL
OR INCIDENTAL DAMAGES, INSTALLATION COSTS, LOST
REVENUE OR PROFITS, OR ANY OTHER COSTS OF ANY NATURE AS A RESULT OF THE USE OF PRODUCTS MANUFACTURED BY THE SELLER, WHETHER USED IN ACCORDANCE
WITH INSTRUCTIONS OR NOT. UNDER NO CIRCUMSTANCES
SHALL SELLER’S LIABILITY TO BUYER EXCEED THE ACTUAL SALES PRICE OF THE PRODUCTS PROVIDED HEREUNDER. No representative is authorized to assume for Seller any
other liability in connection with the products.
Industry Certifications/Registration Numbers:
FCC: NVRCSI-DSP25XH-L7, NVRCSI-DSP25XH-U7C IC: 4307A-DSP25XH-L7, 4307A-DSP25XH-U7C
-34-
Index
Important Installation Notes 12
Important Safety Information 5
Inadequate isolation 12
Industry Certifications/Registration
Numbers 34
Input VSWR 15
Install Software 21
SNMP Configuration 20
Spurious Emissions & Applicable
Documents 15
Suggested spectrum analyzer setting 33
Surface Coating 14
System Health 21
System Status 18
Box Weight 14
LED 5
LED Indicators 7
Lightning Danger 4
Linear Gain 15
Linear Output Power 15
Liner Output Power 15
Local Network 18
Log Configuration 23
login 17
TCP/IP settings 31
Telnet Session 28, 29
Temperature Range 14
terminal emulation programs 24
Terms used in this manual 5
Thermal Management 14
TMI 5
troubleshooting RF issues 33
CDMA RHO 15
Change Password 23
Circuit Operational Description 13
Connectors 15
CPU 5
CSI 5
Manual Gain Control 15
Maximum RF input Power 15
Modem Interface 30
modulation selection 19
Monitoring & Alarms 9
AC Current 14
AC Power Frequency 14
AC Power Specifications 14
AC Voltage 14
Additional Tips 31
AGC 5
Alarm Configuration 22
APC 5
Application 4
AUI 5
Automatic Gain Control 15
DAS 5
DHCP 5
Document Purpose / Intended Users 4
DSP 5
EEPROM 5
Email Configuration: 22
Environmental Requirements 14
ERP 5
Event Log 21
Explosive Atmospheres 4
Noise Figure 15
null modem adapter 23
OIP3 15
Pass Band Ripple 15
Product Registration Information 4
Program a Filter 19
Propagation Delay 15
Grounding 4
Reboot 22
Relative Humidity 14
Remote Network 20
Repeater Size 14
Resolution Bandwidth 33
RF Configuration 19
RF Notes 33
RMS Vector Error 15
Heat Output 14
SBC 5
serial cable 23
SNMP 5
FPGA 5
Functional Block Diagram 13
Functional Overview 7
-35-
UHCI 5
USB 5
USB Interface 8
Wall Mounting 11
Warranty 34
Web based GUI Session 17
Weight 14
Notes
-36-
Notes
-37-
Notes
-38-
Notes
-39-
960-1049-410 rev 003

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