FreeWave LRS455 SERIES User manual

FreeWave Technologies
April 10, 2009 400 MHz Licensed Installation Manual V1.0
LIG0011AA Rev A 1 of 6
FreeWave Technologies, Inc.
400 MHz Wireless Modem
Installation Guide
Remote Site Products - 1-888-532-2706 - www.remotesiteproducts.com
http://www.remotesiteproducts.com/p-20000-FreeWave-LRS455-CE-Radio-Licensed-Serial-400-MHz-Radio-Enclosed.aspx

FreeWave Technologies
April 10, 2009 400 MHz Licensed Installation Manual V1.0
LIG0011AA Rev A 2 of 6
FCC Notification
The transceiver is approved under Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation. Any
unauthorized modification or changes to this device without the express approval of FreeWave
Technologies may void the user’s authority to operate this device. Furthermore, this device is
intended to be used only when installed in accordance with the instructions outlined in this
manual. Failure to comply with these instructions may void the user’s authority to operate this
device.
Note: The LRS-455 transceivers are approved for use in Canada within the 450MHz to 470MHz
band.
CAUTION: The LRS-455 series transceiver have maximum transmitted output power
of 2W. It is recommended that the transmit antenna be kept at least 37 cm away from
nearby persons to satisfy FCC RF exposure requirements.
UL Notification
UL Class 1 Div 2 approval is pending for all FreeWave LRS-455 transceivers.
Remote Site Products - 1-888-532-2706 - www.remotesiteproducts.com
http://www.remotesiteproducts.com/p-20000-FreeWave-LRS455-CE-Radio-Licensed-Serial-400-MHz-Radio-Enclosed.aspx

FreeWave Technologies
April 10, 2009 400 MHz Licensed Installation Manual V1.0
LIG0011AA Rev A 3 of 6
Models LRS-455-C and LRS-455-CE
GENERAL:
The devices covered by this Report are wireless data transceivers. They must be
installed in a suitable enclosure.
Conditions of Acceptability – When installed in the end use equipment, the following
considerations are to be examined:
1. The transceivers shall be mounted within an enclosure which is suitable for the intended
application. The enclosure shall also have provisions for Division 2 wiring methods as
specified in the National Electrical Code or Canadian Electrical Code, as applicable.
2. The transceivers must be used within their Recognized ratings and transmission rate.
3. Installations and use should be in accordance with the National Electrical Code or
Canadian Electrical Code, as applicable.
4. The connectors shall not be connected or disconnected while circuit is alive unless area
is known to be nonhazardous. Connector J2 is only used for programming the device; it
has not been evaluated as a non-incendive circuit..
5. Must be connected to a Class 2 source.
6. The diagnostics port and cable do not have a latching connector and cannot be used in a
hazardous location.
A. Transceiver installation steps
Note: LRS-455 transceivers should not be powered on without a load connected to the antenna
port. Powering a LRS-455 transceiver without a load can damage the radio.
To install the LRS-455 series transceivers, follow the basic steps given below.
1. Mount the transceiver to the flat, stable surface using mounting holes in the corners of the
transceiver. Transceiver models sold under FCC ID KNY821191151819 are to be installed
professionally in NEMA enclosures.
2. Install the antenna and connect the antenna feedline to the transceiver. If you are installing a
directional antenna, preset the antenna’s direction appropriately. The antenna must be
professionally installed on fixed-mounted permanent outdoor structures for satisfying RF
exposure requirements.
3. Connect a computer to the transceiver’s RS232 port (please refer to the part C of this
addendum for more information about the transceiver’s pin assignment). This computer will
be used to set the radio’s configurations.
4. Install the power for the radio.
5. Set the radio configuration according to the system topology and data terminal equipment
requirements. Default transceiver settings allow user to do a quick installation without major
Remote Site Products - 1-888-532-2706 - www.remotesiteproducts.com
http://www.remotesiteproducts.com/p-20000-FreeWave-LRS455-CE-Radio-Licensed-Serial-400-MHz-Radio-Enclosed.aspx

FreeWave Technologies
April 10, 2009 400 MHz Licensed Installation Manual V1.0
LIG0011AA Rev A 4 of 6
changes in transceiver’s configuration. But there is one parameter that must be considered
for a new installation – transceiver’s power output settings.
Note: It is the installer’s responsibility to ensure that the emission limits are not
exceeded.
B. Transceiver Location
Placement of the FreeWave transceiver is likely to have a significant impact on its performance.
In general the rule of thumb with FreeWave is that the higher the placement of the antenna the
better the communication link - height is everything! In practice you should also place the
transceiver away from computers, telephones, answering machines, and other similar equipment.
When using an external antenna, placement of that antenna is critical to a solid data link. Other
antennas in close proximity are a potential source of interference; use the Radio Statistics or
Diagnostics software to help identify potential problems. It is also possible that slight adjustments
in antenna placement (as little as 2 feet) will solve noise problems.
C. Board Level Pin Assignments
The board level transceiver uses standard RS232 polarity and voltage levels for all of the RS232
signal lines (DTR, Transmit Data, Receive Data, Carrier Detect, RTS, and Clear to Send).
Pin 1: B+ Power input.
Pin 2: Interrupt (INT) – Input – A 0 volt level on this pin will switch the radio into setup mode.
Note: Pin 1 on the LRS-455 board level transceiver is the pin farthest from the three
LEDs and pin 10 is closest to the LEDs.
D. Power Connection
The LRS-455 series transceivers can be operated from any Class 2 power source, input voltages
vary by model. The power source should be capable of providing at least 0.8 amperes of
Table 4: Board Level
Transeiver Pinout
Pin Signal Assignment
1 Input B+ input
2 Input Interrupt (Ground to invoke menu)
3 Input DTR
4 Ground
5 Output Transmit Data
6 Ground
7 Input Receive Data
8 Output Carrier Detect
9 Input RTS
10 Output Clear to Send
Remote Site Products - 1-888-532-2706 - www.remotesiteproducts.com
http://www.remotesiteproducts.com/p-20000-FreeWave-LRS455-CE-Radio-Licensed-Serial-400-MHz-Radio-Enclosed.aspx

FreeWave Technologies
April 10, 2009 400 MHz Licensed Installation Manual V1.0
LIG0011AA Rev A 5 of 6
continuous current. The pin #1 of the 10-pin connector on the transceiver is the positive lead; pin
#4 or pin #6 of this connector should be as a negative lead.
Transceiver is designed to operate in negative ground systems only.
Remote Site Products - 1-888-532-2706 - www.remotesiteproducts.com
http://www.remotesiteproducts.com/p-20000-FreeWave-LRS455-CE-Radio-Licensed-Serial-400-MHz-Radio-Enclosed.aspx

FreeWave Technologies
April 10, 2009 400 MHz Licensed Installation Manual V1.0
LIG0011AA Rev A 6 of 6
Remote Site Products - 1-888-532-2706 - www.remotesiteproducts.com
http://www.remotesiteproducts.com/p-20000-FreeWave-LRS455-CE-Radio-Licensed-Serial-400-MHz-Radio-Enclosed.aspx