ADRF PSR-78-9537-XB User manual

Advanced RF Technologies, Inc.
i
PSR-78-9537-XB MANUAL
VERSION 0.24
3116 West Vanowen St.
Burbank, CA 91505
Tel: [phone]
Fax: [phone]
www.adrftech.com

Advanced RF Technologies, Inc.
ii
Information in this document is subject to change without notice.
Advanced RF Technologies, Inc. 1996-2019.
All rights reserved.
Please send comments to:
E-Mail: [email protected]m
Phone: [phone]
[phone]
Fax: [phone]
Address:
Advanced RF Technologies, Inc.
Attention: Technical Publications Department
3116 Vanowen St.
Burbank, CA 91505
USA
www.adrftech.com

Advanced RF Technologies, Inc.
iii
REVISION HISTORY
CHANGE LIST
Version
Change list
Contents
Version
Author
Descriptions
Date
0.1
ADRF
Initial Release
08/07/2019
0.12
ADRF
update
09/11/2019
0.22
ADRF
B9B Update
08/04/2020
0.23
ADRF
update
09/04/2020
0.24
ADRF
update
22/04/2020

Advanced RF Technologies, Inc.
iv
TABLE OF CONTENTS
1. Introduction ........................................................................................................................................................9
1.1 Highlights .....................................................................................................................................................9
1.2 Parts List.....................................................................................................................................................10
1.3 Quick View .................................................................................................................................................11
1.4 Warnings and Hazards...............................................................................................................................13
2. Overview...........................................................................................................................................................17
2.1 LED.............................................................................................................................................................17
2.2 Host / Remote Switch ................................................................................................................................17
2.3 Cable Connection.......................................................................................................................................18
2.3.1 AC Power ............................................................................................................................................18
2.3.2 External Alarm....................................................................................................................................19
2.3.3 RF........................................................................................................................................................20
2.3.4 Annunciator........................................................................................................................................20
2.3.5 Back Up Battery Port ..........................................................................................................................21
2.3.6 Grounding...........................................................................................................................................22
3. Alarms...............................................................................................................................................................23
3.1 Message Board Alarms and Notifications..................................................................................................23
3.2 Alarms........................................................................................................................................................23
3.3 External Alarms..........................................................................................................................................24
3.3.1 External Alarm Output interface ........................................................................................................24
3.3.2 External Alarm Input interface ...........................................................................................................25
4. Installation ........................................................................................................................................................25
4.1 Installation Procedures..............................................................................................................................25
4.1.1 Wall Mount Procedure .......................................................................................................................25
4.1.2 PSR-ANN Annunciator Installation .....................................................................................................26
4.2 Antenna Separation/Isolation....................................................................................................................28
5. PSR-78-9533-X/9537-X Web-GUI Setup............................................................................................................30
5.1 Repeater/PC Connection Using Web-GUI..................................................................................................30
5.2 Status Tab ..................................................................................................................................................31
5.2.1 Band Info ............................................................................................................................................32
5.2.2 Power & Gain......................................................................................................................................32
5.2.3 Alarms.................................................................................................................................................33
5.2.4 AAI ......................................................................................................................................................33
5.2.5 Repeater Info / Repeater Location / Technical Support / Installer Contact Info................................34
5.3 Control Tab ................................................................................................................................................35
5.3.1 General Settings .................................................................................................................................36
5.3.1.1 Emergency Power Off Switch Support ..............................................................................................36
5.3.2 System ................................................................................................................................................36
5.3.3 Manual Gain Control ..........................................................................................................................37

Advanced RF Technologies, Inc.
v
5.3.4 Alarm Settings & Battery Alarm Settings............................................................................................37
5.4 Install Tab...................................................................................................................................................38
5.4.1 Technology .........................................................................................................................................39
5.4.2 Band Selection....................................................................................................................................39
5.4.3 SNMP..................................................................................................................................................40
5.4.4 Location ..............................................................................................................................................40
5.4.5 Modem Box Setting............................................................................................................................40
5.4.6 AAI Input.............................................................................................................................................41
5.4.7 Location Info / Installer Info...............................................................................................................41
5.4.8 Date & Time........................................................................................................................................41
5.5 System .......................................................................................................................................................42
5.5.1 System: Account.................................................................................................................................42
5.5.1.1 System: Account –Account Management................................................................................42
5.5.1.2 System: Account –New Account..............................................................................................42
5.5.1.3 System: Account –Change Password .......................................................................................42
5.5.2 System –SNMP...................................................................................................................................43
5.5.3 System –Logs .....................................................................................................................................43
5.5.4 System –Update ................................................................................................................................44
5.5.5 System –Backup / Restore.................................................................................................................44
5.6Help............................................................................................................................................................45
5.7 Logout........................................................................................................................................................45
6. Maintenance Guide for PSR-78-9533-X/9537-X Repeater................................................................................45
6.1 Periodic Inspection Checklist .....................................................................................................................45
6.2 Preventive Measures for Optimal Operation ............................................................................................45
6.2.1 Recommendations..............................................................................................................................45
6.2.2 Precautions.........................................................................................................................................45
7. Warranty and Repair Policy ..............................................................................................................................46
7.1 General Warranty ......................................................................................................................................46
7.2 Limitations of Warranty.............................................................................................................................46
7.3 Limitation of Damages...............................................................................................................................46
7.4 No Consequential Damages.......................................................................................................................46
7.5 Additional Limitation on Warranty............................................................................................................46
7.6 Return Material Authorization (RMA) .......................................................................................................46
8. Specifications ....................................................................................................................................................47
8.1 Electrical Specifications .............................................................................................................................47
8.2 Mechanical Specifications..........................................................................................................................48
8.3 Power Specifications..................................................................................................................................48
8.4 Warranty & Certificates .............................................................................................................................48
9. Mechanical Drawing .........................................................................................................................................52
10. Appendix...........................................................................................................................................................56

Advanced RF Technologies, Inc.
vi
10.1 Shutdown Retry Logic ................................................................................................................................56
FIGURES
Figure 1-1 PSR-78-9533-X/9537-X Repeater Parts List ........................................................................................10
Figure 1-2 PSR-78-9533-X/9537-X Quick View (Bottom).....................................................................................11
Figure 1-2 PSR-ANN Annunciator ........................................................................................................................12
Figure 2-1 LED Panel............................................................................................................................................17
Figure 2-2 Host/Remote Switch...........................................................................................................................18
Figure 2-3 AC Input Port ......................................................................................................................................18
Figure 2-4 AC On/Off Switch................................................................................................................................18
Figure 2-5 External Alarm Port ............................................................................................................................19
Figure 2-6 RF Ports...............................................................................................................................................20
Figure 2-10 Annunciator Port ................................................................................................................................20
Figure 2-7 Battery Backup Port (4-pin Female) ...................................................................................................21
Figure 2-8 Battery Switch ....................................................................................................................................21
Figure 2-9 Ground Cable Terminal.......................................................................................................................22
Figure 4-1 Wall Mount.........................................................................................................................................25
Figure 4-2 PSR-ANN Repeater Mount..................................................................................................................26
Figure 4-3 PSR-ANN Wall Mount .........................................................................................................................27
Figure 4-4 RF Repeater Oscillation ......................................................................................................................28
Figure 5-1 Login Page ..........................................................................................................................................30
Figure 5-2 Status Tab...........................................................................................................................................31
Figure 5-3 Status Tab –Band Info Display ...........................................................................................................32
Figure 5-4 Status Tab –Power & Gain Display ....................................................................................................32
Figure 5-5 Status Tab –Alarm Display.................................................................................................................33
Figure 5-6 Status Tab –AAI Alarm Display (Remote Power Switch Disabled) .....................................................33
Figure 5-7 Status Tab –AAI Alarm Display (Remote Power Switch Enabled)......................................................33
Figure 5-8 Status Tab –Repeater Info / Repeater Location / Technical Support / Installer Contact Info ...........34
Figure 5-9 Control Tab.........................................................................................................................................35
Figure 5-10 Control Tab –General Setting ............................................................................................................36
Figure 5-11 AAI Alarm Cable –Alarm Input...........................................................................................................36
Figure 5-12 Control Tab –System..........................................................................................................................36
Figure 5-13 Control Tab –Manual Gain Control....................................................................................................37
Figure 5-14 Control Tab –Alarm & Battery Alarm Settings...................................................................................37
Figure 5-15 Install Tab ...........................................................................................................................................38
Figure 5-16 Install Tab –Technology.....................................................................................................................39
Figure 5-17 Install Tab –Band Selection................................................................................................................39
Figure 5-18 Install Tab –SNMP..............................................................................................................................40
Figure 5-19 Install Tab –Location..........................................................................................................................40
Figure 5-20 Install Tab –Modem Box Setting........................................................................................................40
Figure 5-21 Install Tab –AAI Input ........................................................................................................................41
Figure 5-22 Install Tab –Location Info / Installer Info...........................................................................................41
Figure 5-23 Install Tab –Date & Time ...................................................................................................................41
Figure 5-24 System: Account –Account Management .........................................................................................42
Figure 5-25 System: Account –New Account........................................................................................................42
Figure 5-26 System: Account –Change Password.................................................................................................42
Figure 5-27 SNMP..................................................................................................................................................43
Figure 5-28 System: Logs.......................................................................................................................................43
Figure 5-29 System: Update ..................................................................................................................................44
Figure 5-30 System: Update is Complete Popup Message ....................................................................................44

Advanced RF Technologies, Inc.
vii
Figure 5-31 System: Backup / Restore...................................................................................................................44
Figure 5-32 Help ....................................................................................................................................................45
Figure 9-1 PSR-78-9533-X Mechanical Drawing ..................................................................................................53
Figure 9-2 PSR-78-9537-XB Mechanical Drawing ................................................................................................54
Figure 9-3 PSR-ANN Annunciator Mechanical Drawing.......................................................................................55
TABLES
Table 1-1 Parts List .............................................................................................................................................10
Table 2-1 LED Specifications...............................................................................................................................17
Table 2-2 External Alarm Port Pin Description...................................................................................................19
Table 3-1 Message Board Alarms and Notifications...........................................................................................23
Table 3-2 Alarms.................................................................................................................................................23
Table 8-1 Electrical Specifications ......................................................................................................................47
Table 8-2 Mechanical Specifications ..................................................................................................................48
Table 8-3 Power Specifications ..........................................................................................................................48
Table 8-4 Warranty & Certificates......................................................................................................................48

Advanced RF Technologies, Inc.
8
Terms and Abbreviations
The following is a list of abbreviations and terms used throughout this document.
Abbreviation/Term
Definition
AGC Automatic Gain Control
ALC Automatic Level Control
AROMS ADRF Repeater Operation and Management System
BDA Bi-Directional Amplifier
BTS Base Transceiver Station
CDMA Code Division Multiple Access
CFR Crest Factor Reduction
CP Cyclic Prefix
CW Continuous Wave (un-modulated signal)
DAS Distributed Antenna System
DL Downlink
HPA High Power Amplifier
HW Hardware
IF Intermediate Frequency
LNA Low Noise Amplifier
LTE Long Term Evolution
MS Mobile Station
OFDM Orthogonal Frequency-Division Multiplexing
OFDMA Orthogonal Frequency-Division Multiple Access
PAR (PAPR) Peak to Average Power Ratio (Crest Factor)
PLL Phase Locked Loop
PSU Power Supply Unit
QAM Quadrature Amplitude Modulation
QPSK Quadrature Phase Shift Keying
RB Resource Block
RF Radio Frequency
SC-FDMA Single Carrier-Frequency Division Multiple Access
SQE Signal Quality Estimate
SW Software
UE User Equipment
UL Uplink
VSWR Voltage Standing Wave Ratio

Advanced RF Technologies, Inc.
9
1. 5INTRODUCTION
PSR-78-9537-XB bi-directional amplifiers (BDAs) extend the coverage area of radio communications in buildings
and RF shadow environments. These units feature low noise figure and wide dynamic range and are certified to UL
2524.
The PSR-78-9537-XB is a revolutionary digital public safety repeater designed to protect
the lives of first responders and building occupants.
Through the use of digital signal processing (DSP) filtering technology, the PSR-78-9537-XB helps eliminate
adjacent channel interference to allow band selectivity and support for 700 MHz (FirstNet) frequencies including
FirstNet. Up to two non-contiguous wideband filters can be simultaneously supported in the 700 MHz frequencies
via ADRF’s celebrated web-based GUI, which provides versatility and total control to the user.
The PSR-78-9537-XB is the best-in-class public safety repeater with FirstNet support and
it is fully compliant with International Fire Code (IFC) and National Fire Protection Association (NFPA).
Product Features
-NFPA 1221 2016 code compliant and FirstNet compliant
-Alarming output to supervised circuits for: antenna, amplifier, power supply, battery, and charger failure
-IP66 compliant enclosure for both indoor and outdoor environments
-Class B wideband repeater designations
-Up to 95dB of gain and up to 37 dBm downlink output power per band and up to 30 dBm uplink output
power shared
1.1 Highlights
UL 2524 Certified
Supports 700MHz (FirstNet) Public Safety Frequency in a single repeater
Supports 2 wideband (LTE 5 & 10 MHz)
Air convection cooling without fans
Sharp Filter Roll-off performance (Wide: 60dBc @ Filter Bandwidth Edge + 1MHz | Narrow: 55dBc @
Filter Bandwidth Edge + 3 * Filter BW)
Supports SNMP v1, v2c, v3 (get and set)
Web-based GUI Interface; No 3rd party GUI software required
Web-GUI connectivity via DHCP in host mode
External Alarm Function supporting dry contacts (11 outputs, 1 input)
Support Emergency Power Off Switch

Advanced RF Technologies, Inc.
10
1.2 Parts List
Table 1-1 Parts List
Label
Quantity
Description
A
1
PSR-78-9537-XB
B
1
Wall Mount Bracket
C
1
Mounting Bracket Template
D
1
AAI Alarm Cable
E
1
AC Power Cable
F
1
Ethernet Cable (Crossover)
G
4
Anchor Bolt
H
1
PSR-ANN (Annunciator Panel)
A B C D
E F G H
Figure 1-1 PSR-78-9537-XB Repeater Parts List

Advanced RF Technologies, Inc.
11
1.3 Quick View
Figure 1-2 PSR-78-9537-XB Quick View (Bottom)
AAI Alarm Port
ADRF-BBx
Battery Port
Donor Port
(4.3-10 Female)
AC Input Port
Ground Terminal
Server Port
(4.3-10 Female)
Sever CPL (DL Output
Monitor Port, -30dB)
Donor CPL (UL Output
Monitor Port, -30dB)
Heat Sink
Air Vent Hole
Annunciator Communication /
Power Port

Advanced RF Technologies, Inc.
12
Figure 1-3 PSR-ANN Annunciator
Audible Alarm Speaker
Alarm Indicator Lights
Data/Power Port
Repeater / Wall
Mount Bracket

Advanced RF Technologies, Inc. 13
1.4 Warnings and Hazards
Opening the PSR-78-9533-XB could result in electric shock and may cause
severe injury.
Operating the PSR-78-9533-XB with antennas in very close proximity facing
each other could lead to severe damage to the repeater.
WARNING! DAMAGE TO REPEATER
Actual separation distance is determined upon gain of antenna used.
Please maintain a minimum safe distance of at least 400cm while operating near the donor and
the server antennas. Also, the donor antenna needs to be mounted outdoors on a permanent
structure.
RF EXPOSURE & ANTENNA PLACEMENT Guidelines
Opening or tampering the PSR-78-9537-XB will void all warranties.
WARRANTY
Lithium Battery: CAUTION. RISK OF EXPLOSION IF BATTERY IS REPLACED BY INCORRECT TYPE. DISPOSE OF
USED BATTERIES ACCORDING TO INSTRUCTIONS.
WARNING! ELECTRIC SHOCK
In accordance with the FCC regulations, this device must meet 5W ERP requirements.
To satisfy this, the antenna cable name we propose is LMR200. If available, the antenna length must be
at least of 30m (antenna cable loss at 30m is about 8 dBi). If you use another antenna cable, the cable
loss must be considered to more than DL: 2dBi and UL: 7 dBi. So, the maximum antenna gain after
accounting for any cable losses should be UP To DL: 0.6 dBi, Omni antenna / UL: 8 dBi, Pannel antenna.

Advanced RF Technologies, Inc.
14
Preclude indications that Home/ personal use are prohibited.
Use of unauthorized antennas, cables, and/or coupling devices not conforming with
ERP/EIRP is prohibited.
Any changes or modifications not expressly approved by the party responsible for compliance could
void the user's authority to operate this equipment.
FCC Part 15.21
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 their own expense.
FCC Part 15 Class A
FCC RF Radiation Exposure Statement:
This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with a minimum distance of
400 cm between the radiator and your body. This transmitter must not be co-located or operating
in conjunction with any other antenna or transmitter.
Regulatory Warning Statement

Advanced RF Technologies, Inc.
15
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type
and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential
radio interference to other users, the antenna type and its gain should be so chosen that the equivalent
isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.
Conformément à la réglementation d’Industrie Canada, le présent émetteur radio peut
fonctionneravec une antenne d’un type et d’un gain maximal (ou inférieur) approuvé pour l’émetteur
par Industrie Canada.
Dans le but de réduire les risques de brouillage radioélectrique à l’intention desautres utilisateurs,
il faut choisir le type d’antenne et son gain de sorte que la puissance isotroperayonnée quivalente
(p.i.r.e.) ne dépassepas l’intensité nécessaire à l’établissement d’une communication satisfaisante.
RSS-GEN, Sec. 7.1.2–(transmitters)
This radio transmitter (identify the device by certification number, or model number if Category II) has
been approved by Industry Canada to operate with the antenna types listed below with the maximum
permissible gain and required antenna impedance for each antenna type indicated. Antenna types not
included in this list, having a gain greater than the maximum gain indicated for that type, are strictly
prohibited for use with this device.
Maximum antenna gain after accounting for any cable losses should be up to DL: 0.6 dBi, Omni antenna/
/UL: 8 dBi, Pannel antenna (minimum Antenna cable length : 30 m).
Le présent émetteur radio (identifier le dispositif par son numéro de certification ou son numéro de
modèle s’il fait partie du matériel de catégorie I) a été approuvé par Industrie Canada pour fonctionner
avec les types d’antenne énumérés ci-dessous et ayant un gain admissible maximal et l’impédance
requise pour chaque type d’antenne. Les types d’antenne non inclus dans cette liste,ou dont le gain
est supérieur au gain maximal indiqué, sont strictement interdits pour l’exploitation de l’émetteur.
RSS-GEN, Sec. 7.1.2–(detachable antennas)
This equipment complies with RF radiation exposure limits set forth for an uncontrolled environment.
This equipment should be installed and operated with a minimum distance of 400 cm between the
radiator and your body. This transmitter must not be co-located or operating in conjunction with any
other antenna or transmitter. RF exposure will be addressed at time of installation and the use of
higher gain antennas require larger separation distances.
L’antenne (ou les antennes) doit être installée de façon à maintenir à tout instant une distance
minimum de au moins 400 cm entre la source de radiation (l’antenne) et toute personne physique.
Cet appareil ne doit pas être installé ou utilisé en conjonction avec une autre antenne ou émetteur.
RF Radiation Exposure

Advanced RF Technologies, Inc.
16
◈LABEL WARNING◈
WARNING. THIS is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and
QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to
operate this device. You MUST register Class B signal boosters (as defined in 47 CFR 90.219) online
at www.fcc.gov/signal-boosters/registration. Unauthorized use may result in significant forfeiture
penalties, including penalties in excess of $100,000 for each continuing violation.
Part 90 Signal Boosters This is A 90.219 CLASS B DEVICE

Advanced RF Technologies, Inc.
17
2. OVERVIEW
2.1 LED
PSR-78-9537-XB LED indicator lights are located on the inside of the repeater towards the bottom. Below the
LED indicators is a button that is used to trigger the door open alarm.
Figure 2-1 LED Panel
Table 2-1 LED Specifications
POWER
DL
UL
ALARM
AC Fail
DL Signal Not Detected
UL Out-Band Overload
Power-Related Alarms
DC Fail
DL Signal Low Detected
UL Input Overload
RF DL Path Related Alarms
Battery Fail
DL RF Power
UL DSP Over Input
RF UL Path Related Alarms
Low Battery
DL Out-Band Overload
UL Over Input
Over Temperature
Battery Not Charge
DL Input Overload
UL Over Power
DSP Communication
Battery Not Connected
DL DSP Over Input
UL Return Power
Door Open
Over Current
DL Over Input
UL PLL Fail
System Halt
DL Over Power
DL Return Power
DL PLL Fail
LED Indicator
Specifications
Solid Green
Normal operation
Solid Yellow
Soft Fail alarm exists in the system
Solid Red
Hard Fail alarm exists in the system
2.2 Host / Remote Switch
The Host/Remote Switch allows the user to switch the default Repeater IP, Subnet Mask, and Gateway of the
Ethernet port of the repeater to an alternative setup. These settings can only be adjusted by logging into the
repeater under HOST mode and configuring the settings under the Modem Box Setting section on the Install
Page (section 5.4.5).
Once the settings are set, flipping the switch to the REMOTE position will reboot the repeater with the new
alternate settings. Please note that when the repeater is set to the REMOTE position, DHCP is disabled and the
repeater will not automatically assign an IP address to any device that connects directly to the repeater.
Host IP: 192.168.63.1 (Fixed IP, unable to modify this IP address)
Remote IP: 192.168.63.5 (Default IP, but can be modified in Host mode)


Advanced RF Technologies, Inc.
18
Figure 2-2 Host/Remote Switch
2.3 Cable Connection
2.3.1 AC Power
AC power is accepted through a standard 3-wire male plug (MS3106A-22-2S) with phase, neutral, and ground
leads. The AC power is wired to a high-efficiency DC switching power supply which is UL approved.
The AC port is located at the bottom of the repeater and has a free-voltage range input of 100-240V AC.
Figure 2-3 AC Input Port
Figure 2-4 AC On/Off Switch
The AC Power on/off switch is on the left-hand side of the PSU which is located inside of the repeater.
AC On/Off switch

Advanced RF Technologies, Inc.
19
2.3.2 External Alarm
Figure 2-5 External Alarm Port
This port should be connected only to the fire alarm control panel.
Table 2-2 External Alarm Port Pin Description
Pin
Bundle
Color
Pin Description (24 pins)
ADRF External Alarm Box
Pin Description
Alarm
Type
A
Fire
Black
Donor antenna malfunction_P
1-POS
Output
B
Black
Donor antenna malfunction_N
1-NEG
Output
C
Brown
Active RF device malfunction_P
2-POS
Output
D
Brown
Active RF device malfunction_N
2-NEG
Output
E
Red
Low battery capacity (70%)_P
3-POS
Output
F
Red
Low battery capacity (70%)_N
3-NEG
Output
G
Orange
System component malfunction_P
4-POS
Output
H
Orange
System component malfunction_N
4-NEG
Output
J
System
Monitoring
Yellow
Normal AC Power_P
5-POS
Output
K
Yellow
Normal AC Power_N
5-NEG
Output
L
Green
Loss of normal AC Power_P
6-POS
Output
M
Green
Loss of normal AC Power_N
6-NEG
Output
N
Blue
Battery charger failure_P
7-POS
Output
P
Blue
Battery charger failure_N
7-NEG
Output
Q
Purple
Low battery capacity (70%)_P
8-POS
Output
R
Purple
Low battery capacity (70%)_N
8-NEG
Output
S
Grey
Donor antenna malfunction_P
9-POS
Output
T
Grey
Donor antenna malfunction_N
9-NEG
Output
U
White
Active RF emitting device malfunction_P
10-POS
Output
V
White
Active RF emitting device malfunction_N
10-NEG
Output
W
Pink
System component malfunction_P
11-POS
Output
X
Pink
System component malfunction_N
11-NEG
Output
Y
Alarm
Input
Light
Blue
Alarm Input-1
-
Input
Z
Light
Blue
GND
-
GND

Advanced RF Technologies, Inc.
20
2.3.3 RF
Figure 2-6 RF Ports
The RF connections are made via two 4.3-10 female connectors. The RF connector labeled “DONOR” must be
connected to the antenna pointing towards the base station. The DONOR port can receive both 700 and 800MHz
public safety signals. The RF connection labeled “SERVER” must be connected to the antenna facing the area to
be covered by the BDA. The repeater has a single SERVER port that supports both 700 and 800MHz public safety
signals.
The RF connections must be made using cables with an impedance of 50 ohms.
The separation between the antennas is necessary to prevent oscillation. Oscillation occurs when the signal
entering the system continually re-enters, due to the lack of separation between the donor and server antennas.
In other words, the signal is being fed back into the system. This creates a constant amplification of the same
signal. As a result, the noise level rises above the signal level.
To prevent feedback, the donor and server antennas must be separated by an appropriate distance to provide
sufficient isolation. Isolation is attained by separating antennas a sufficient distance so that the output of one
antenna does not reach the input of the other. This distance is dependent on the gain of the repeater.
DONOR –4.3-10 female which is used to connect the donor antenna (700MHz + 800MHz PS)
DONOR_CPL (30dB) –SMA female 30 dB coupling port which is used to monitor the amplified UL signal
SERVER_CPL (30dB) –SMA female 30 dB coupling port which is used to monitor the amplified DL signal
SERVER –4.3-10 female which is used to connect the server antenna (700MHz + 800MHz PS)
2.3.4 Annunciator
The Annunciator port provided power and communication to the PSR-ANN annunciator box. The PSR-ANN
annunciator box provides a summary status of the repeater via LED indicator lights and an audible alarm.
Figure 2-7 Annunciator Port