CSI CSI-DSP85-L7AB User manual

CSI-DSP85-L7AB/CSI-DSP85-U7C
InstallationManual

Table of Contents
Document Purpose / Intended Users ................................................................................................................................. 4
Application ........................................................................................................................................................................... 4
Safety Guidelines................................................................................................................................................................. 4
Product Registration Information....................................................................................................................................... 4
Important Safety Information ............................................................................................................................................. 5
Product Introduction ........................................................................................................................................................... 5
Terms used in this manual ................................................................................................................................................. 5
Band Plan and Filter Naming Convention ........................................................................................................................... 6
Functional Overview ............................................................................................................................................................ 7
LED Indicators ..................................................................................................................................................................... 7
Local Communication Interface Ports ............................................................................................................................... 8
Approximate Signal Strengths of Bargraph Display ......................................................................................................... 8
Ethernet................................................................................................................................................................................ 8
EIA232 Pin Specifications ................................................................................................................................................... 8
USB Interface....................................................................................................................................................................... 8
Monitoring & Alarms ........................................................................................................................................................... 9
System Set-Up Considerations .......................................................................................................................................... 9
Selection of external attenuators to be used in line with the Antenna Port(s) ............................................................... 9
DONORPORT ..................................................................................................................................................................... 10
SERVERPORT .................................................................................................................................................................... 10
Attenuator Selection Guidelines....................................................................................................................................... 10
Wall Mounting the Digital Repeater ...................................................................................................................................11
Important Installation Notes ............................................................................................................................................. 12
Installation Tips ................................................................................................................................................................. 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
Program a Filter: ................................................................................................................................................................ 19
RFConfiguration: ............................................................................................................................................................... 19
Remote Network:............................................................................................................................................................... 20
SNMPConfiguration: ......................................................................................................................................................... 20
Install &Upload: ................................................................................................................................................................. 21
System Health:................................................................................................................................................................... 21
Reboot: ............................................................................................................................................................................... 22
EmailConfiguration: .......................................................................................................................................................... 22
AlarmConfiguration: ......................................................................................................................................................... 22
LogConfiguration: ............................................................................................................................................................. 23
Text Menu Interface (Local Access) ................................................................................................................................ 23
Terminal Emulation Program............................................................................................................................................ 24
Terminal Emulation Set-up................................................................................................................................................ 25
TMILogin ............................................................................................................................................................................ 26
Telnet Session (Remote Access)..................................................................................................................................... 28
Telnet Session Login ......................................................................................................................................................... 29
Modem Interface (Remote Access with login) ................................................................................................................ 30
AdditionalTips ................................................................................................................................................................... 31
Suggested spectrum analyzer setting:............................................................................................................................ 33
RFNotes: ............................................................................................................................................................................ 33
Industry Certifications/Registration Numbers:................................................................................................................ 34
Index................................................................................................................................................................................... 35

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Product Registration Information
DISCLAIMER:All information and statements contained herein are accurate to the best of the knowledge
ofCellularSpecialties, Inc.(CSI), butCellularSpecialties makes no warrantywithrespectthereto, 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.
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
HAZARDOUSVOLTAGESAREPRESENTWHENTHE COVER IS REMOVED.Openingthe
chassis will void your warranty. If you suspect a malfunction with this product, call your dealer or
the Cellular Specialties Support Line at: [phone], Toll Free (USA) 1-877-844-4274.
Safety Guidelines
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.
Application
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.
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 pur-
chase, to serve as a permanent record of your purchase.
MODELNUMBER SERIALNUMBER DATEOFPURCHASE
POINT OF SALE COMPANY
NOTE:This equipment has been tested and found to comply with the limits for a ClassAdigital
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.
Radio and Television Interference

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Cellular Specialties, Inc. (CSI) developed the DSP85 digital repeater for use within enclosed structures where signal from local dispatch
sites is insufficient to operate on scene communication equipment. Adequate signal must be available outside the structure as a prerequi-
site 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” (Transceiver to tower) &
“downlink”(tower to Transceiver) 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 comm. port 1 or 2 or via a Crossover Ethernet cable
connected to the Ethernet port. There are also LED indicators near the display to indicateALARM status,AGC status, UL PWR, DLPWR,
OSC,SHUTDWNandaD/LSIGNALSTRENGTHbargraph.
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’ require-
ments. 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 public safety band plan as well as the
convention CSI uses to identify and store the files that make up the filter set. All DSP85 repeaters are shipped with an active filter set that
is programmed according to the ordering parties’ specifications. In most cases, the installer will not have to program a filter.
AGC= Automatic Gain Control ERP= Effective Radiated Power
APC= Automatic Power Control FPGA= Field Programmable Gate Array
AUI= Attachment Unit Interface LED= Light Emitting Diode
CPU= Central Processing Unit OIP3= Third-Order Intercept Point
CSI= Cellular Specialties, Inc. RF= Radio Frequency
DAS= Distributed Antenna System SBC= Single board Computer
DHCP= Dynamic Host Configuration SNMP= Simple Network Management Protocol
Protocol TMI= Text Menu Interface
DSP= Digital Signal Processing USB = Universal Serial Bus
EEPROM= Electrically Erasable UHCI = Universal Host Controller Interface
Programmable read-
only Memory
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 20 cm (~8.0 in.) 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 120 cm. (~4 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.
Product Introduction
Terms used in this manual
Important Safety Information

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CSI’s DSP II LTE Lower A & B Band Plan
Up Link
(MHz)
Down Link
(MHz) 728
698
A0
UL698-704
DL728-734
B0
UL704-710
DL734-740
A1
UL698.5-703.5
DL728.5-733.5 B1
UL704.5-709.5
DL734.5-739.5
AB
704 710
734 740
Up Link
(MHz)
Down Link
(MHz)
A2 A3 A4 A5 A6 A7
UL698-699
DL728-729
UL699-700
DL729-730
UL700-701
DL730-731
UL701-702
DL731-732
UL702-703
DL732-733
UL703-704
DL733-734
B2 B3 B4 B5 B6 B7
UL704-705
DL734-735
UL705-706
DL735-736
UL706-707
DL736-737
UL707-708
DL737-738
UL708-709
DL738-739
UL709-710
DL739-740
CSI’s DSP II LTE Upper C Band Plan
Up Link
(MHz)
Down Link
(MHz) 746
776
C0
UL776-787
DL746-757
C1
UL776.5-786.5
DL746.5-756.5
C
787
757
Up Link
(MHz)
Down Link
(MHz)
781.5
751.5
Note: All Variant/Guard Band designators other than 0 are user defined
custom filters.
Band Plan and Filter Naming Convention

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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
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:
UL PWR: Indicated by a red LED. Uplink power has been affected by a system event and
will need to be addressed by either the system software or a technician to
be reset to original system settings, using the GUI or text menu interface.
See the event log to determine the nature of the fault.
DL PWR: Indicated by a red LED. Downlink power has been affected by a system event
or condition, such as insufficient antenna isolation, and will need to be
addressed by either the system software or a technician to be reset to original
system settings, using the GUI or menu driven user interface. See the event log
to determine the nature of the fault.
OSC: Indicated by a red LED. An oscillation event has occurred or is occurring. The
system has been affected by the event and the problem will need to be
addressed by the system software or a technician to be reset to original ystem
settings. This is an indication of a major fault.
SHUT DWN: Indicated by a red LED. The RF stages of the unit are disabled due to an
unresolved system event such as oscillation, effectively taking the unit off
the air. The problem will need to be addressed by a technician before the on
air operation can be restarted. The repeater is not equipped with an ON/OFF
power switch. Hard power down will require that the unit be unplugged.
D/L SIGNAL
STRENGTH: Indicated by a green LED bargraph. This indicates the relative signal strength
being received from the cell site. Note: the last bar of the bargraph will turn
red in the event of very strong adjacent channel interference.
Alarm: Indicated by a red LED. The unit has sensed an alarm condition. This LED may
light alone or in conjunction with one of the other indicator LEDs. In both cases the
cause(s) can be reviewed by going to the System Health menu.
AGC: When Illuminated, this yellow LED indicates that automatic gain control is active
and has reduced the gain of the unit in order to prevent very strong input
signals from overloading the amplifier. The amplifier will periodically evaluate
input signal and attempt to recover from this condition.
Functional Overview
LED Indicators

-8-
EIA232 Pin Specifications
The diagram to the left 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.
To allow monitoring and control, the repeater is equipped with four ports that provide external communication access (1 Ethernet
CAT-5, 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.
Approximate Signal Strengths of Bargraph Display
ILLUMINATED
BARS SIGNAL AT INPUT
CONNECTOR
0*
1
2
3
10
< -81 dBm
-81dBmto -79dBm
-78dBmto -75dBm
AdjacentChannel
Interference
4
5
6
7
8
9
-74dBmto -71dBm
-70dBmto -67dBm
-66dBmto -63dBm
-62dBmto -59dBm
-58dBmto -55dBm
-54dBmto -51dBm
The minimum measurable input level is -81 dBm at 85 dB gain, -71 dBm at 75 dB gain, -61 dBm at 65 dB gain, and -51 dBm at 55 dB gain.
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 soft-
ware updates and filter file uploads.
*Note: During Power up, the unit will require a approximately three minutes for the internal computer to boot up. During this time
the LEDs on the front panel will light and go out several times. When boot is complete and no alarm conditions exist, none of the LED
indicators will be illuminated. The CSI logo is illuminated when ever the repeater is powered. One or more bars on the LED bargraph
may also be lit, depending on the strength of the signal being received from the donor site. Signals weaker than -81dBM will not
illuminate any bars.
Do not unplug the unit while it is in the boot up process!
Local Communication Interface Ports
USB Interface
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.
Ethernet

- 9 -
All cables should be checked for shorts and opens. Also verify that there are no cables with loose or poor connec-
tions. 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 DSP85 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-DSP85 for providing coverage to these sites.
TO INSIDE ANTENNA TO OUTSIDE ANTENNA
1:1 PORT CONFIGURATION
Input: One single band port, from the single band donor.
Output: One single band port to the DAS.
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.
Monitoring &Alarms
System Set-Up Considerations
Selection of external attenuators to be used in line with the Antenna Port(s)

- 10 -
If a CSI-DSP85 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 CSI-DSP85: Uplink
output power, as reported by the CSI-DSP85, 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.
DONOR 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-DSP85: Downlink output power, as reported
by the CSI-DSP85, 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.
SERVER PORT
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 Max Gain
<-45 dBm 85dB -32.2 dBm 69dB
-44.3 dBm 84 dB -31.4 dBm 68 dB
-43.6 dBm 83dB -30.6 dBm 67 dB
-42.9 dBm 82dB -29.8 dBm 66 dB
-42.2 dBm 81 dB -29 dBm 65 dB
-41.5 dBm 80dB -28.2 dBm 64 dB
-40.6 dBm 79dB -27.4 dBm 63 dB
-39.7 dBm 78dB -26.6 dBm 62 dB
-38.8 dBm 77dB -25.8 dBm 61 dB
-37.9 dBm 76 dB -25 dBm 60dB
-37 dBm 75dB -24.4 dBm 59 dB*
-36.2 dBm 74dB -23.8 dBm 58 dB*
-35.4 dBm 73dB -23.2 dBm 57 dB*
-34.6 dBm 72dB -22.6 dBm 56 dB*
-33.8 dBm 71dB -22 dBm < 55 dB*
-33 dBm 70dB
*We recommend padding this level due to potential for fluctuating signal.
-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. Example:
Band (LTE)
In-Band Input -45 dBm
Composite Input -38 dBm
Max Gain = 68 dB
Max Output = 23 dBm

- 11 -
ITEM # QTY PART # DESCRIPTION
1 1EA CS10-388-409 DSP85-L7AB REPEATER or
CS10-388-410 DSP85-L7C REPEATER
2 1EA 453-1010-002 5V/24V POWER SUPPLY
3 1EA 780-0510-001 LINE CORD (AC POWER)
4 1EA 750-2171-001 MOUNTING PLATE (OPTIONAL)
5 1EA 750-2172-002 P/S MOUNTING BRACKET
The following diagram illustrates the best method for mounting the repeater to a wall in an typical installation.
Note: for optimal cooling the unit should be mounted vertically on a wall with the antenna ports up.
Wall Mounting the Digital Repeater