CalAmp Guardian-100 User manual

Guardian-100™
Guardian-200™
Guardian-400™
Guardian-900™
Narrowband IP Router
User Manual
PN 001-5008-000 Rev 8E Preliminary ETSI Version
Revised May 27, 2010

REVISION HISTORY
REV
DATE
REVISION DETAILS
0
Dec 11, 2010
Initial Release as 001-5006-000.

IMPORTANT NOTICE
Because of the nature of wireless communication, transmission and reception of data can never
be guaranteed. Data may be delayed, corrupted (i.e., have errors), or be totally lost. Significant
delays or losses of data are rare when wireless devices such as the Guardian are used in a
normal manner with a well-constructed network. Guardian should not be used in situations
where failure to transmit or receive data could result in damage of any kind to the user or any
other party, including but not limited to personal injury, death, or loss of property. CalAmp
accepts no responsibility for damages of any kind resulting from delays or errors in data
transmitted or received using Guardian, or for the failure of Guardian to transmit or receive
such data.
COPYRIGHT NOTICE
© Copyright 2007 CalAmp.
Products offered may contain software proprietary to CalAmp. The offer of supply of these
products and services does not include or infer any transfer of ownership. No part of the
documentation or information supplied may be divulged to any third party without the express
written consent of CalAmp.
RF EXPOSURE COMPLIANCE REQUIREMENTS
The Guardian radio is intended for use in the Industrial Monitoring and Control
and SCADA markets. The Guardian unit must be professionally installed and must ensure a
minimum separation distance listed in the table below between the radiating structure and any
person. An antenna mounted on a pole or tower is the typical installation and in rare instances,
a 1/2-wave whip antenna is used.
Antenna Gain
5 dBi
10 dBi
15 dBi
Min Safety Distance
(VHF @ max Power)
123cm
218.8cm
389cm
Min Safety Distance
(UHF @ max Power)
105.7cm
188cm
334.4cm
Min Safety Distance
(900 MHz @ max power)
63.8cm
115 cm
201.7 cm
Note: It is the responsibility of the user to guarantee compliance with the FCC MPE
regulations when operating this device in a way other than described above.
The Guardian radio uses a low power radio frequency transmitter. The concentrated energy
from an antenna may pose a health hazard. People should not be in front of the antenna when
the transmitter is operating.
The installer of this equipment must ensure the antenna is located or pointed such that it does
not emit an RF field in excess of Health Canada limits for the general population. Recommended
safety guidelines for the human exposure to radio frequency electromagnetic energy are
contained in the Canadian Safety Code 6 (available from Health Canada) and the Federal
Communications Commission (FCC) Bulletin 65.
RF Exposure

Any changes or modifications not expressly approved by the party responsible for compliance
(in the country where used) could void the user's authority to operate the equipment.

REGULATORY CERTIFICATIONS
The Guardian radio is available in several different models each with unique frequency bands.
Each model of Guardian may have different regulatory approval as shown in the table below.
UL Certification
All models
UL approved when powered with a listed Class 2 source.
DECLARATION OF CONFORMITY FOR MODEL # 140-5046-400
This device (Guardian model #140-5046-400) is a data transceiver intended for commercial
and industrial use in all EU and EFTA member states.
Česky [Czech]
CalAmp tímto prohlašuje, že tento rádio je ve shodě se základními
požadavky a dalšími příslušnými ustanoveními směrnice 1999/5/ES.
Dansk [Danish]
Undertegnede CalAmp erklærer herved, at følgende udstyr radio
overholder de væsentlige krav og øvrige relevante krav i direktiv
1999/5/EF.
Deutsch [German]
Hiermit erklärt CalAmp, dass sich das Gerät radio in Übereinstimmung
mit den grundlegenden Anforderungen und den übrigen einschlägigen
Bestimmungen der Richtlinie 1999/5/EG befindet.
Eesti [Estonian]
Käesolevaga kinnitab CalAmp seadme raadio vastavust direktiivi
1999/5/EÜ põhinõuetele ja nimetatud direktiivist tulenevatele teistele
asjakohastele sätetele.
English
Hereby, CalAmp, declares that this radio is in compliance with the
essential requirements and other relevant provisions of Directive
1999/5/EC.
Español [Spanish]
Por medio de la presente CalAmp declara que el radio cumple con los
requisitos esenciales y cualesquiera otras disposiciones aplicables o
exigibles de la Directiva 1999/5/CE.
Ελληνική [Greek]
ΜΕ ΣΗΝ ΠΑΡΟΤΑ CalAmp ΔΗΛΩΝΕΙ ΟΣΙ ΡΑΔΙΌΦΩΝΟ
ΤΜΜΟΡΦΩΝΕΣΑΙ ΠΡΟ ΣΙ ΟΤΙΩΔΕΙ ΑΠΑΙΣΗΕΙ ΚΑΙ ΣΙ ΛΟΙΠΕ
ΥΕΣΙΚΕ ΔΙΑΣΑΞΕΙ ΣΗ ΟΔΗΓΙΑ 1999/5/ΕΚ.
Français [French]
Par la présente CalAmp déclare que l'appareil radio est conforme aux
exigences essentielles et aux autres dispositions pertinentes de la
directive 1999/5/CE.
Italiano [Italian]
Con la presente CalAmp dichiara che questo radio è conforme ai
requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla
Certifications
Model Number
Frequency Range
FCC
IC (DOC)
European Union
EN 300 113
Australia/New
Zealand
140-5016-500
136 –174 MHz
NP4-5016-500
773B-5016500
140-5016-501
136 –174 MHz
NP4-5016-500
773B-5016500
140-5026-500
216 –222 MHz
NP4-5026-500
773B-5026500
140-5026-501
216 –222 MHz
NP4-5026-500
773B-5026500
140-5046-300
406 - 470 MHz
NP4-5046-500
773B-5046500
140-5046-301
406 - 470 MHz
NP4-5046-500
773B-5046500
140-5046-500
450 - 512 MHz
NP4-5046-500
773B-5046500
140-5046-501
450 - 512 MHz
NP4-5046-500
773B-5046500
140-5096-500
928 - 960 MHz
NP4-5096-500
773B-5096500
140-5096-501
928 - 960 MHz
NP4-5096-500
773B-5096500

direttiva 1999/5/CE.
Latviski [Latvian]
Ar šo CalAmp deklarē, ka radio atbilst Direktīvas 1999/5/EK būtiskajām
prasībām un citiem ar to saistītajiem noteikumiem.
Lietuvių [Lithuanian]
Šiuo CalAmp deklaruoja, kad šis radijo atitinka esminius reikalavimus ir
kitas 1999/5/EB Direktyvos nuostatas.
Nederlands [Dutch]
Hierbij verklaart CalAmp dat het toestel radio in overeenstemming is
met de essentiële eisen en de andere relevante bepalingen van richtlijn
1999/5/EG.
Malti [Maltese]
Hawnhekk, CalAmp , jiddikjara li dan tar-radju jikkonforma mal-ħtiġijiet
essenzjali u ma provvedimenti oħrajn relevanti li hemm fid-Dirrettiva
1999/5/EC.
Magyar [Hungarian]
Alulírott, CalAmp nyilatkozom, hogy a rádió megfelel a vonatkozó
alapvetõ követelményeknek és az 1999/5/EC irányelv egyéb
elõírásainak.
Polski [Polish]
Niniejszym CalAmp oświadcza, że radio jest zgodny z zasadniczymi
wymogami oraz pozostałymi stosownymi postanowieniami Dyrektywy
1999/5/EC.
Português
[Portuguese]
CalAmp declara que este rádio está conforme com os requisitos
essenciais e outras disposições da Directiva 1999/5/CE.
Slovensko
[Slovenian]
CalAmp izjavlja, da je ta radio v skladu z bistvenimi zahtevami in
ostalimi relevantnimi določili direktive 1999/5/ES.
Slovensky [Slovak]
CalAmp týmto vyhlasuje, že rádio spĺňa základné požiadavky a všetky
príslušné ustanovenia Smernice 1999/5/ES.
Suomi [Finnish]
CalAmp vakuuttaa täten että radio tyyppinen laite on direktiivin
1999/5/EY oleellisten vaatimusten ja sitä koskevien direktiivin muiden
ehtojen mukainen.
Svenska [Swedish]
Härmed intygar CalAmp att denna radio står I överensstämmelse med
de väsentliga egenskapskrav och övriga relevanta bestämmelser som
framgår av direktiv 1999/5/EG.
Íslenska [Icelandic]
Hér með lýsir CalAmp yfir því að útvarp er í samræmi við grunnkröfur
og aðrar kröfur, sem gerðar eru í tilskipun 1999/5/EC.
Norsk [Norwegian]
CalAmp erklærer herved at utstyret radio er i samsvar med de
grunnleggende krav og øvrige relevante krav i direktiv 1999/5/EF.

TABLE OF CONTENTS
1GUARDIAN OVERVIEW...........................................................................................................................................9
1.1 General Description............................................................................................................................................9
1.2 Operational Characteristics...............................................................................................................................9
1.3 Physical Description .........................................................................................................................................10
1.3.1 Front PanelThe front panel has the following connections:........................................................................10
1.3.1 The front panel has the following connections:..........................................................................................11
1.3.2 LED Panel...................................................................................................................................................11
1.3.3 User Interface Port......................................................................................................................................11
1.3.4 SETUP and COM Ports..............................................................................................................................12
1.3.5 Power Connector ........................................................................................................................................12
1.3.6 Antenna Connector .....................................................................................................................................13
1.3.7 Chassis Dimensions....................................................................................................................................13
1.4 Part Numbers and Availability........................................................................................................................14
1.4.1 Guardian Radio...........................................................................................................................................14
1.4.2 Accessories and Options.............................................................................................................................14
1.5 Product Warranty ............................................................................................................................................15
1.6 RMA Request....................................................................................................................................................16
1.7 Documentation and Downloads.......................................................................................................................16
2SYSTEM ARCHITECTURE AND NETWORK PLANNING .................................................................................17
2.1 Single Coverage Area .......................................................................................................................................17
2.2 Network Architecture.......................................................................................................................................17
2.2.1 Point-to-Point..............................................................................................................................................17
2.2.2 Point-to-Multipoint.....................................................................................................................................18
2.2.3 Multiple Point-to-Point...............................................................................................................................18
2.2.4 Peer-to-Peer ................................................................................................................................................18
2.2.5 Store and Forward.......................................................................................................................................18
2.2.6 Network Using a T-Base.............................................................................................................................18
2.2.7 NETWORK USING A T-BASE REPEATER ...........................................................................................19
2.2.8 NETWORK USING A GUARDIAN FOR ONLINE DIAGNOSTICS .....................................................19
2.3 Extending the Coverage Area with a Relay Point..........................................................................................19
2.3.1 Understanding RF Path Requirements........................................................................................................20
2.4 Site Selection and Site Survey..........................................................................................................................20
2.4.1 Site Selection..............................................................................................................................................20
2.4.2 Site Survey..................................................................................................................................................21
2.5 Selecting Antenna and Feedline.......................................................................................................................21
2.5.1 Antenna Gain..............................................................................................................................................21
2.5.2 Omni Directional Antenna..........................................................................................................................21
2.5.3 Yagi Antenna..............................................................................................................................................22
2.5.4 Vertical Dipoles..........................................................................................................................................22
2.5.5 Feedline ......................................................................................................................................................22
2.5.6 RF Exposure Compliance Requirements....................................................................................................22
2.6 Terrain and Signal Strength............................................................................................................................23
2.7 Radio Interference............................................................................................................................................24
3Setup and Configuration ...........................................................................................................................................25
3.1 Install the Antenna ...........................................................................................................................................25
3.2 Measure and Connect Primary Power............................................................................................................25
3.3 Connect Guardian to Programming PC.........................................................................................................25

3.4 GUARDIAN FIELD PROGRAMMING SOFTWARE ................................................................................25
4UNIT STATUS...........................................................................................................................................................26
4.1 Unit Identification and Status..........................................................................................................................26
4.2 Diagnostics.........................................................................................................................................................26
4.2.1 Online Diagnostics......................................................................................................................................26
4.2.2 Offline Diagnostics.....................................................................................................................................26
4.2.3 Remote Commands.....................................................................................................................................27
5Using Guardian Software..........................................................................................................................................28
GUARDIAN SPECIFICATIONS.....................................................................................................................................52
PRODUCT WARRANTY ..................................................................................................................................................58
6PRODUCT WARRANTY ..........................................................................................................................................58

001-5006-000_FCC.docx Page 9
1GUARDIAN OVERVIEW
This document provides information required for the operation and verification of the
CalAmp Guardian Narrowband Modem.
1.1 GENERAL DESCRIPTION
This DSP-based radio was designed for SCADA, telemetry and industrial applications in the
136-174 MHz, 215-240 MHz VHF, 406.1-512 MHz UHF, and 928-960 MHz frequency ranges.
Guardian supports serial Remote Terminal Units (RTU) and programmable logic controllers
(PLC). The Guardian is compatible with any Dataradio Interoperability Standard (DI-OS)
equipment and Bell 202/212 interface.
1.2 OPERATIONAL CHARACTERISTICS
The Guardian product has the following operational characteristics:
Frequency range of 136-174 MHz, 215-240 MHz, 406.1-470 MHz, 450-512 MHz, or
928-960 MHz.
User-selectable data rates
Built-in transceiver adjustable from 1 to 10 watts (8 watts max for 900MHz)
Wide input power range of 10 to 30 volts DC
Online and Offline Diagnostics
Supports up to 8 different frequency channel pairs (selectable through user interface
port).
Industrial operating temperature range of -30 to +60 C
Rugged die-cast aluminum and steel case

001-5006-000_FCC.docx Page 10
These features provide system benefits that give users:
Rugged Packaging. Guardian is housed in a compact and rugged cast aluminum case.
Built for industrial applications in a variety of environments, Guardian operates over an
extended temperature range and provides worry-free operation in the roughest
environments.
Simple Installation. Basic installation typically utilizes an omni-directional antenna at the
master station or Relay Point and a directional antenna at each remote site not a Relay
Point. See Section 2 for information on Site and Antenna Selection. For basic service, just
hook up an antenna, apply primary power, check and set a few operating parameters and
you are done.
Flexible Management. Configuration, commissioning, maintenance and troubleshooting
can be done locally or remotely. There are no physical switches or adjustments. The Dual-
Port Guardian provides a receive antenna connector allowing for unique customer
applications requiring additional receive filtering, external PA(s), and other options.
Long Range. Narrowband configurations allow better coverage over harsh terrain.
1.3 PHYSICAL DESCRIPTION
Guardian consists of two logic PCBs, one that includes the modem circuitry and the other
the radio module. Both are installed in a cast aluminum case. The unit is not hermetically
sealed and should be mounted in a suitable enclosure when dust, moisture, and/or a
corrosive atmosphere are anticipated.
The Guardian is designed for easy installation and configuration; the Guardian features no
external or internal switches or adjustments. All operating parameters are set via the setup
port.
1.3.1 Front Panel

001-5006-000_FCC.docx Page 11
The front panel has the following connections:
(1) 8-Pin user interface block connector
(1) 50-ohm TNC female Antenna connector
(1) 50-ohm SMA female receive antenna connector (Dual-Port models only)
(1) Right-angle power connector (10-30 VDC)
(2) DE-9F RS-232 ports
For Dual-port Guardian connections, see Section 1.3.6.
1.3.2 LED Panel
The LED panel has five Tri-Color LEDs. The functionality of each LED is shown in Table 1.1.
Table 1.1 Guardian LED Functionality
LED
Color
Definition
Power
Green
Amber (Solid or Blinking)
Red
Guardian ready, normal operations
Guardian is Programing
Guardian hardware fault
Status
Green
Red
Amber (Solid or Blinking)
Guardian no faults, normal operations
Guardian has a fault condition, check unit status
Guardian detects high background noise
Rx
Green
Off
Receiving data
Tx
Red
Blinking Amber
Off
Transmitting data
The unit wants to transmit, but is inhibited.
Rd/Td
Green
Red
Receive data is being sent out of the port
Transmit data is being received by the port
1.3.3 User Interface Port
The user interface port is an 8 pin block receptacle, programmable to work with 1.8V to 5V
levels. Table 1.2 shows pin-out descriptions for the RJ-45 port.
Table 1.2 Pin-out for User Interface Port Contacts
Contact
10 Base-T Signal
1
Tx Audio In
2
Rx Audio Out
3
PTT
4
RSSI Out
5
Ground
6
Channel Select 1
7
Channel Select 2
8
Channel Select 3

001-5006-000_FCC.docx Page 12
1.3.4 SETUP and COM Ports
The SETUP and COM serial connections are DE-9F RS-232 ports.
Serial port considerations:
Guardian radio modem SETUP and COM ports are Data Communication Equipment
(DCE) devices
In general, equipment connected to the Guardian’s SETUP / COM serial port is Data
Terminal Equipment (DTE) and a straight-through cable is recommended.
Note: If a DCE device is connected to the Guardian SETUP / COM port, a null modem
cable/adapter is required.
The pin-out for the SETUP and COM ports are shown in Table 1.3.
Table 1.3 Pin-out for DCE SETUP and COM port, 9 Contact DE-9 Connector
Contact
EIA-232F Function
Signal Direction
1
DCD(1)
DTE ←DCE
2
RXD
DTE ←DCE
3
TXD
DTE →DCE
4
DTR
DTE →DCE
5
GND
DTE --- DCE
6
DSR(2)
DTE ←DCE
7
RTS(1)
DTE →DCE
8
CTS(1)
DTE ←DCE
9
RING (3)
DTE --- DCE
(1) Programmable.
(2) Always asserted
(3) For future use
The DCD, DTR, RTS and CTS control lines are programmable. Refer to section 6.4 for serial
port control line configurations.
1.3.5 Power Connector
The Guardian is supplied with a right-angle power connector (10-30 VDC). Table 1.4 shows
the pin-out of the power connector.
Table 1.4 Pin-out of the power connector
Contact #
(Left to Right)
Color
Description
4
Fan Power Output (5V)
3
Black
Ground
2
Red
Positive (10-30) VDC
1
White
Enable
Note: The White Enable line must be tied to the red positive lead of the connector for the
Guardian to function.

001-5006-000_FCC.docx Page 13
1.3.6 Antenna Connector
The standard Guardian has a 50-ohm TNC female antenna connector. This connection
functions for both transmit and receive.
The Dual-Port Guardian has a 50-ohm TNC female antenna connector functioning for
transmit (only) and a 50-ohm SMA female antenna connector functioning for receive (only).
The separate receive antenna connector allows for unique customer applications that require
additional receive filtering, external PA(s) and other options.
Warning: The transmit antenna port must not be connected directly to the receive
antenna port of the Dual-Port Guardian. Excessive power into the receive antenna
port will damage the radio. Input power to the receiver should not exceed 17 dBm
(50mW).
To reduce potential interference, the antenna type and its gain should be chosen to ensure
the effective isotropic radiated power (EIRP) is not more than required for successful
communication.
1.3.7 Chassis Dimensions
Figure 1.2 shows the dimensions of the Guardian Chassis and mounting plate.
Figure 1.2 Guardian Chassis Dimensions (units are in inches)

001-5006-000_FCC.docx Page 14
1.4 PART NUMBERS AND AVAILABILITY
1.4.1 Guardian Radio
Table 1.5 provides a breakdown of the Guardian part number 140-50X6-Y0Z.
Table 1.5 - Part Number Breakdown
Model Number
Description
Frequency Range
140-5016-500
Standard VHF Guardian
136 - 174 MHz
140-5026-502
Standard VHF Guardian-200
215 - 240 MHz
140-5046-300
Standard UHF Guardian Range 3
406.1 - 470 MHz
140-5046-500
Standard UHF Guardian Range 5
450 - 512 MHz
140-5096-500
Standard 900MHz Guardian
928 - 960 MHz
140-5016-501
Dual Port VHF Guardian
136 - 174 MHz
140-5026-503
Dual Port VHF Guardian-200
215 - 240 MHz
140-5046-301
Dual Port UHF Guardian Range 3
406.1 - 470 MHz
140-5046-501
Dual Port UHF Guardian Range 5
450 - 512 MHz
140-5096-501
Dual Port 900MHz Guardian
928 - 960 MHz
1.4.2 Accessories and Options
Tables 1.6-1.8 list standard accessories (including antenna, feedline, and connectors) tested
and approved for use with the Guardian.
Table 1.6 - Accessories
ITEM
PART NUMBER
Guardian Power Cable
897-5008-010
Guardian Demo Kit* –VHF - 136-174 MHz
250-5016-500
Guardian Demo Kit* –VHF 200 - 215-240 MHz
250-5026-502
Guardian Demo Kit* –UHF - 406-470 MHz
250-5046-300
Guardian Demo Kit* –UHF - 450-512 MHz
250-5046-500
Guardian Demo Kit* –900 - 928-960 MHz
250-5096-500
Factory Installed Guardian Fan Kit
150-5008-001
Field Installed Guardian Fan Kit**
150-5008-002
TNC-Male to N-Male 18”
250-0697-103
TNC-Male to N-Male 48”
250-0697-104
TNC-Male to N-Male 72”
250-0697-105
TNC-Male to N-Female 18”
250-0697-106
* The Guardian Demo Kit includes two of each of the following: Guardian, rubber duck antennas, adapters,
attenuators, power cables, and power supplies.
** The field install Fan Kit is available for all VHF 200/UHF/900 Guardians (140-5026-XXX/140-5046-xxx/140-
5096-xxx) but is only available for VHF models-(140-5016-xxx) with RF revision 0.3 or greater (shipping Fall
2008). Contact CalAmp Technical Support for more information.

001-5006-000_FCC.docx Page 15
Table 1.7 Antenna Kits
ITEM
PART NUMBER
Antenna Kit*: 138-143 MHz 6.5 dBd
250-0211-007
Antenna Kit*: 138-143 MHz 9.5 dBd
250-0211-010
Antenna Kit*: 143-148 MHz 6.5 dBd
250-0211-107
Antenna Kit*: 143-138 MHz 9.5 dBd
250-0211-110
Antenna Kit*: 148-152 MHz 6.5 dBd
250-0211-207
Antenna Kit*: 148-152 MHz 9.5 dBd
250-0211-210
Antenna Kit*: 152-157 MHz 6.5 dBd
250-0211-307
Antenna Kit*: 152-157 MHz 9.5 dBd
250-0211-310
Antenna Kit*: 157-163 MHz 6.5 dBd
250-0211-407
Antenna Kit*: 157-163 MHz 9.5 dBd
250-0211-410
Antenna Kit*: 163-169 MHz 6.5 dBd
250-0211-507
Antenna Kit*: 163-169 MHz 9.5 dBd
250-0211-510
Antenna Kit*: 169-174 MHz 6.5 dBd
250-0211-607
Antenna Kit*: 169-174 MHz 9.5 dBd
250-0211-610
Antenna Kit*: 216-222 MHz 6.5 dBd
250-0221-007
Antenna Kit*: 216-222 MHz 9.5 dBd
250-0221-010
Antenna Kit*: 450-470 MHz, 7 dBd
250-0241-507
Antenna Kit*: 450-470 MHz, 10 dBd
250-0241-510
Antenna Kit*: 890-960 MHz, 6.4 dBd
250-5099-011
Antenna Kit*: 890-960 MHz, 10 dBd
250-5099-021
*Kits include premium antenna, mounting bracket, surge protector, grounding kit, cable ties, 18” TNC male to N-
male jumper cable and weather kit. UHF/900 kits include 25 feet of LMR400 antenna feedline. Feedline is available
for VHF kits in 25 or 50 feet lengths.
Table 1.8 - Feedline and Connectors
ITEM
PART NUMBER
25 feet antenna feedline (LMR400), N-Male
250-0200-025
50 feet antenna feedline (LMR400), N-Male
250-0200-055
Barrel Connector, RF1 N type, Female
250-0200-100
1.5 PRODUCT WARRANTY
It is our guarantee that every Guardian Radio modem will be free from physical defects in
material and workmanship for TWO YEARS from the date of purchase when used within the
limits set forth in Appendix A: Specifications.
The manufacturer's warranty statement is available in Appendix B. If the product proves
defective during the warranty period, contact our Customer Service Department to obtain a
Return Material Authorization (RMA). BE SURE TO HAVE THE EQUIPMENT MODEL, SERIAL
NUMBER, AND BILLING & SHIPPING ADDRESSES AVAILABLE WHEN CALLING. You may also
request an RMA online at www.calamp.com/component/option,com_rma/
FACTORY AND TECHNICAL SUPPORT
M-F 7:30-4:30 CST
CalAmp Wireless DataCom
299 Johnson Ave., Ste 110, Waseca, MN 56093
Tel 507.833.8819; Fax 507.833.6758

001-5006-000_FCC.docx Page 16
Email i[email protected]
1.6 RMA REQUEST
When returning a product, mark the RMA clearly on the outside of the package. Include a
complete description of the problem and the name and telephone number of a contact
person. RETURN REQUESTS WILL NOT BE PROCESSED WITHOUT THIS INFORMATION.
Contact Customer Service:
299 Johnson Ave., Ste 110
Waseca, MN 56093
Tel 1.507.833.8819
BE SURE TO HAVE THE EQUIPMENT MODEL AND SERIAL NUMBER, AND BILLING AND
SHIPPING ADDRESSES ON HAND WHEN CALLING.
For units in warranty, customers are responsible for shipping charges to CalAmp Wireless
DataCom. For units returned out of warranty, customers are responsible for all shipping
charges. Return shipping instructions are the responsibility of the customer.
1.7 DOCUMENTATION AND DOWNLOADS
CalAmp reserves the right to update its products, software, or documentation without
obligation to notify any individual or entity. Product updates may result in differences
between the information provided in this manual and the product shipped. For access to
the most current product documentation and application notes, visit
www.calamp.com/home/download_library.html

001-5006-000_FCC.docx Page 17
2
2
S
SY
YS
ST
TE
EM
M
A
AR
RC
CH
HI
IT
TE
EC
CT
TU
UR
RE
E
A
AN
ND
D
N
NE
ET
TW
WO
OR
RK
K
P
PL
LA
AN
NN
NI
IN
NG
G
This section briefly discusses network architecture (including basic network types),
interfacing modems and DTE, data protocols for efficient channel operation, addressing, and
repeaters.
Guardian is designed to replace wire lines in SCADA, telemetry and control applications. The
RS-232 serial port allows direct connection to Programmable Logic Controllers (PLCs) or
Remote Terminal Units (RTUs). A SCADA system is defined as one or more centralized
control sites used to monitor and control remote field devices over wide areas. For
example, a regional utility may monitor and control networks over an entire metropolitan
area. Industry sectors with SCADA systems include energy utilities, water and wastewater
utilities, and environmental groups.
The Guardian is intended for use in the Industrial Monitoring and SCADA market. The range
of the Guardian is dependent on terrain, RF (radio frequency) path obstacles, and antenna
system design. This section provides tips for selecting an appropriate site, choosing an
antenna system, and reducing the chance of harmful interference.
2.1 SINGLE COVERAGE AREA
In a network topology with only a single coverage area (all units can talk to one another
directly), there are several common system configurations.
The most common is for one unit to be designated as a master and the rest designated as
remotes. Another system configuration is Report-by-Exception.
2.2 NETWORK ARCHITECTURE
2.2.1 Point-to-Point
A point-to-point network is the most simple of all networks, and may be used for connecting
a pair of PC's, a host computer and a terminal, a SCADA polling master and one remote,
mobile applications (like in-vehicle GPS receivers and base stations) or a wide variety of
other networking applications.
Figure 2.1 –Point-to-Point Network

001-5006-000_FCC.docx Page 18
2.2.2 Point-to-Multipoint
A Point-to-Multipoint network is a common network type used in SCADA or other polling
systems. The single polling master station communicates with any number of remotes and
controls the network by issuing polls and waiting for remote responses. Individual PLC/RTU
remotes manage addressing and respond when their individual addresses are queried.
PLC/RTU unit addresses are maintained in a scanning list stored in the host program or
master terminal device at the SCADA host site. Communications equipment is transparent
and does not interact with specific remotes; all data is coupled to the host on a single data
line (such a network is commonly used with synchronous radio modems and asynchronous
radio modems).
Figure 2.2 –Point to Multipoint Network
2.2.3 Multiple Point-to-Point
A multiple point-to-point is similar to the point-to-multipoint system except
the SCADA host has multiple serial ports that are directed to different
geographic areas in the SCADA system.
2.2.4 Peer-to-Peer
A Peer-to-Peer network is generally used for device to device communications
among a number of stations. This network requires full addressing capability
on the part of the data equipment (DTE). If the distances involved for any link
or links are too great for a single radio hop, they can be extended by means
of repeaters without affecting the basic network design.
2.2.5 Store and Forward
Store and Forward is a common technique where a data transmission is sent
from one device to a receiving device but first passes through a relaying
device. The device is typically an RTU or PLC used by the message service to
store the received message then it transmits the message to the intended
recipient.
2.2.6 Network Using a T-Base
The Network Using a T-Base configuration has the following characteristics:
Master station may be full duplex (duplexer required), half duplex, or simplex

001-5006-000_FCC.docx Page 19
Online diagnostics are available using the Online Diagnostics utility without disrupting
network activity
Remote / local diagnostics and statistics / control are available using the Guardian
Offline Diagnostics utility when connected to the Tx module (not Diag Port of T-Base)
The T-Base provides output of Online Diagnostic information which can be processed by
the Guardian Online Diagnostics utility or by a user-supplied network management
program. Contact your sales representative for further information.
2.2.7 NETWORK USING A T-BASE REPEATER
The Network Using a T-Base Repeater has the following characteristics:
Master station and all remotes must be half duplex
Networks described in Section 1.10.2, 1.10.3, or 1.10.5 may be used with a T-Base
repeater
The RTS/CTS delays for each GUARDIAN in the system must be extended as shown in
Table 2-6, RTS/CTS Delays
2.2.8 NETWORK USING A GUARDIAN FOR ONLINE DIAGNOSTICS
The Network Using a Guardian for Online Diagnostics configuration has the following
characteristics:
Master station may be half duplex or simplex
Accumulated online diagnostics for a maximum of 15 stations are available at a
monitoring site (monitoring site must be in range of all remotes)
Online Diagnostics are available in real time at the monitoring site
Remote Offline Diagnostics, statistics, and control are available from the monitoring site
by temporarily disabling network activity (best if using a Master Station Antenna
System)
Online Diagnostics are accumulated in the monitoring Guardian for the last 15 stations
heard. This information may be viewed using the Online Diagnostics utility. For larger
networks, the Guardian can output raw diagnostic data only which may be interpreted for
network management by the Calamp Field Programming Software Online Diagnostics utility
or by a user-supplied software program. Contact your sales representatives for more
information.
2.3 EXTENDING THE COVERAGE AREA WITH A RELAY POINT
The Guardian has a Relay Point feature that allows a unit to relay data from one RF
coverage area to another RF coverage area. When units are spread over two or more
coverage areas, the user must identify the devices forming the backbone between coverage
areas so any unit can talk to any other regardless of their locations. There can be multiple
Relay Points in the system extending the coverage over several hops.
Figure 2.3 - Two Coverage Areas

001-5006-000_FCC.docx Page 20
The unit forming the backbone between the coverage areas must be configured to repeat all
necessary information from one coverage area to the next. This unit must have the Relay
Point parameter enabled (See Section 6.1).
2.3.1 Understanding RF Path Requirements
Radio waves are propagated when electrical energy produced by a radio transmitter is
converted into magnetic energy by an antenna. Magnetic waves travel through space. The
receiving antenna intercepts a very small amount of this magnetic energy and converts it
back into electrical energy that is amplified by the radio receiver. The energy received by
the receiver is called the Received Signal Strength Indication (RSSI) and is measured in
dBm.
A radio modem requires a minimum amount of received RF signal to operate reliably and
provide adequate data throughput. This is the radio’s receiver sensitivity. In most cases,
spectrum regulators will define or limit the amount of signal that can be transmitted and it
will be noted on the FCC license. This is the effective isotropic radiated power (EIRP).
Transmitted power decays with distance and other factors as it moves away from the
transmitting antenna.
2.4 SITE SELECTION AND SITE SURVEY
2.4.1 Site Selection
For a successful installation, careful thought must be given to selecting the site for each
radio. Suitable sites should provide the following:
Protection from direct weather exposure
A source of adequate and stable primary power
Suitable entrances for antenna, interface, or other cabling
Antenna location with an unobstructed transmission path to all remote radios in the
system
These requirements can be quickly determined in most cases.
This manual suits for next models
3
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