FRIENDCOM PULSE915-LRW User manual

PULSE915-LRW Terminal
User Manual
LoRaWAN Terminal Series
Version 2.1
Date: 2020-09-11
www.friendcom.com

PULSE915-LRW_User_Manual
FCC Statement
1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that may cause
undesired operation.
To comply with RF exposure requirements, a minimum separation distance of 20cm must be maintained between the user’s body and the
device, including the antenna.
2. Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
NOTE:
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation.
This equipment generates uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
Consult the dealer or an experienced radio/TV technician for help.
Friendcom has always been committed to technological innovation. Our aim is to
provide customers with timely and comprehensive service. For any assistance,
please contact our Shenzhen headquarters:
FRIENDCOM TECHNOLOGY CO., LTD.
7th Floor, 17 Building, Guangqian Industrial Park, Xili Town, Nanshan District, Shenzhen,
518055, China
Tel: [phone] [phone]
Fax: [phone]
For technical support, or to report documentation errors, please visit:
http://www.friendcom.com
Or email to: [email protected]
Page 1 / 23

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NOTICE
Information in this document has been carefully reviewed and is considered to be accurate.
However, Friendcom assumes no liability resulting from any inaccuracies or omissions in
this document, or from use of the information obtained herein. Friendcom reserves the right
to make changes to any products described herein and reserves the right to revise this
document and to make changes from time to time in content hereof with no obligation to
notify any person of revisions or changes. Friendcom does not assume any liability arising
out of the application or use of any product described herein.
COPYRIGHTS
This manual and Friendcom products described herein may include or describe copyrighted
Friendcom material and are considered technical proprietary of Friendcom CO., LTD.
Accordingly, any copyrighted material of Friendcom and its licensors contained herein or in
Friendcom products described in this manual may not be copied, reproduced, distributed,
merged or modified in any manner without the express written permission of Friendcom.
TRADEMARKS
and Friendcom logo are registered Trademarks. All other product or
service names which are mentioned in this document are the property of their respective
owners.
Copyright © Friendcom Communications 2020. All rights reserved.
About This Document
Scope
Scope of this document is to present features and application of Friendcom wireless pulse
acquisition terminal PULSE915-LRW
Audience
This document is intended for
system engineers (SEs),
application engineers,
and test engineers.

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Related Documents
Friendcom_PULSE915-LRW_Terminal_Datasheet
Friendcom_PULSE915-LRW_Configuration_User_Manual
Conventions
Symbol
Indication
This warning symbol means danger. You are in a situation that could cause fatal device
damage or even bodily damage.
Means reader be careful. In this situation, you might perform an action that could result
in module or product damages.
Means note or tips for readers to use the module.

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History
Issue
Date
Change
1.0
2018-05
Initial draft
1.1
2019-06
Update Interface definition
Added pulse wiring method of Hall sensor type
Update the format of proactive data reporting
Added data short frame format
Update magnet active time and corresponding functions
1.2
2020-04
Update product description
Added firmware upgrade content
2.0
2020-08
Updating new LoRaWAN module
Updating of contents
2.1
2020-09
Update product wired connection description.
Update the band support.

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Content
About This Document........................................................................................................................................... 2
Table Index............................................................................................................................................................ 6
Figure Index...........................................................................................................................................................7
1Introduction....................................................................................................................................................... 8
2Product Concept................................................................................................................................................ 8
2.1 General Description................................................................................................................................ 8
2.2 Key Features............................................................................................................................................8
2.3 Specifications.......................................................................................................................................... 9
2.4 Communication Interface....................................................................................................................... 9
2.5 Safety Recommendations..................................................................................................................... 10
3Wiring Definition..............................................................................................................................................10
3.1 Wiring definition................................................................................................................................... 10
3.2 Pulse Acquisition...................................................................................................................................11
3.2.1 Active Pulse................................................................................................................................12
3.2.2 Passive Pulse.............................................................................................................................. 12
4Data Format And Setting Command................................................................................................................12
4.1 Data Format Of Reporting.....................................................................................................................12
4.2 Setting Command................................................................................................................................. 14
5Parameters Configuration................................................................................................................................18
5.1 Parameters Configuration.....................................................................................................................18
5.1.1 Wired Configuration Mode........................................................................................................18
5.1.2 Wireless Configuration Mode.................................................................................................... 18
5.1.3 Entering Configuration Mode.................................................................................................... 19
6Dimensions and Installation Instructions........................................................................................................ 20
6.1 Dimensions........................................................................................................................................... 20
6.2 Installation............................................................................................................................................ 22
6.3 Transportantion and Storage................................................................................................................ 22

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Table Index
Table 2- 1 Specifications of PULSE915-LRW............................................................................................... 9
Table 3- 1 Wiring definition of PULSE915-LRW...................................................................................... 11
Table 3- 2 Active pulse wiring...................................................................................................................12
Table 3- 3 Passive Pulse wiring............................................................................................................... 12
Table 4- 1 Format of commands.............................................................................................................14
Table 5- 1 Device to USB wiring..............................................................................................................18

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Figure Index
Figure 3- 1 PCB wiring diagram.............................................................................................................. 11
Figure 5- 1 Magnet activation position.................................................................................................. 19
Figure 6- 1 Dimensions of PULSE915-LRW............................................................................................. 21
Figure 6- 2 Installation of PULSE915-LRW.............................................................................................. 22

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1Introduction
This document describes the technical parameters and key functions which are connected
with customers’ applications, and it can help customers quickly understand the data format,
wiring definitions, as well as other related information of PULSE915-LRW. Associated with
configuration user manual, customers can use the terminal to any pulse emitting device
(water, gas, electricity, etc.) easily.
2Product Concept
2.1 General Description
PULSE915-LRW is an external pulse acquisition and wireless data transmission terminal. It
is mainly used for data acquisition of single-pulse or double pulse of equipment, and based
on LoRaWAN technology to implement active data reporting.
PULSE915-LRW supports two kinds of pulse signal output sensors of Hall and reed switch.
That enables it to operate with any pulse emitting device (water, gas, electricity, etc.).
With pre-installed long-life battery and built-in antenna, the wireless pulse acquisition
terminal PULSE915-LRW has the characteristics of simple deployment, high reliability, low
power consumption and long transmission distance.
2.2 Key Features
The following shows the key features of wireless pulse acquisition terminal PULSE915.
Long range wireless data transmission.
Support active sensor (Hall) and passive sensor (reed switch).
Configurable reporting interval.
Pre-installed long-life battery and built-in antenna.
UART serial port or air wireless configuration.
UART firmware upgrade or FOTA.
Battery power detection and optional automatic power reporting.
Average life 10 years*.
IP67 waterproof rating.

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Lifetime depends from the device location and reporting interval.
2.3 Specifications
The following table describes the specifications of PULSE915-LRW
Table 2- 1 Specifications of PULSE915-LRW
Specifications
Description
Physical features
Dimensions (L*W*H): 50 mm x 45.5±0.15 mm x 134 mm
Weight: 146g (Contains the weight of 1 meter long cable)
Cable length: 1m
Operating conditions
Operating temperature: -40 °C to +70 °C
Operating humidity: 5%RH to 95%RH
Power supply
Pre-installed long-life battery, 2.6V to 3.7V
Power consumption
<8 μA@ Standby mode
Radio characteristics
Tx Power: Max. 20dBm
Rx Sensitivity: < -138dBm
Communication range
Up to 15km (In visibility conditions)
MAC Layer
LoRaWAN ®
Antenna option
Build-in Antenna
Configuration
UART serial port or over-the-air
Upgrade
UART serial or FOTA
Certificate approval
CE, FCC, LoRa Alliance*, ANATEL
“*” Means for features and certifications in planning
2.4 Communication Interface
PULSE915-LRW has a UART communication port and a set of pulse signal input ports.
UART interface can be used for parameters configuration and firmware upgrades, and the

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pulse signal input port supports single pulse and double pulse signal input.
It supports both active and passive sensors. The sampling pulse time is less than 5ms,
which can meet the requirement of typical water, electricity and gas instrument pulse
acquisition.
2.5 Safety Recommendations
Ensure that this product is used in compliant with the requirements of the country and the
environment, the following safety precautions must be observed during all phases of the
operation, such as usage, service or repair of wireless pulse acquisition products. If not so,
Friendcom assumes no liability for customers’ failure to comply with these precautions.
Full attention must be given to driving at all times in order to reduce the risk
of an accident. Using the terminal while driving causes distraction and can
lead to an accident. Please comply with laws and regulations restricting the
use of wireless devices while driving.
Wireless devices may cause interference on sensitive medical equipment,
so please be aware of the restrictions on the use of wireless devices when in
hospitals, clinics or other healthcare facilities.
The wireless terminal contains a transmitter and receiver. RF interference
can occur if it is used close to other electric equipment.
Do not use this product at any places with a risk of fire or potentially
explosive atmospheres such as gasoline stations, oil refineries, etc.
3Wiring Definition
3.1 Wiring definition
PULSE915-LRW uses wiring terminal for connection. The name of each terminal is marked
on the PCB.

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Figure 3- 1 PCB wiring diagram
The specific functions are defined as shown in the following table.
Table 3- 1 Wiring definition of PULSE915-LRW
NO.
Name
Function
Wiring
color
Remarks
1
VOUT
Power Output
Red
3.6V controllable output, hall sensor use
2
GND
Ground
Orange
3
PUL-A
Pulse sampling port A
Blue
Single pulse sampling using this port
4
PUL-B
Pulse sampling port B
Purple
5
IO1-R
Serial port reception
Green
6
IO1-T
Serial port transmission
Yellow
7
GND
Ground
Brown
8
LINE
Wire break detection
White
3.2 Pulse Acquisition
PULSE915-LRW collects pulses and counts them, and the current accumulated index is
sent to the gateway through the LoRaWAN module according to the preset reporting period,
and finally uploaded to LoRaWAN server. The connection between active pulse (Hall) and
passive pulse (reed switch) is as follows.

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3.2.1 Active Pulse
The ports that need to be used for active pulses are as follows:
Table 3- 2 Active pulse wiring
Port
Single pulse
Double pulse
VOUT
√
√
GND
√
√
PUL-A
√
√
PUL-B
√
3.2.2 Passive Pulse
The ports that need to be used for passive pulses are as follows:
Table 3- 3 Passive Pulse wiring
Port
Single pulse
Double pulse
GND
√
√
PUL-A
√
√
PUL-B
√
4Data Format And Setting Command
4.1 Data Format Of Reporting
PULSE915-LRW actively reports data according to the set period. The format of reported
data frame can be set to two types: short format and long format. The information reported in
the two formats is different, as follows:

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Short data frame format:
Name
Byte
Note
Frame header
1
Fixed 0x56
Frame number
and status
1
Bit 4- Bit 7: Frame number
Bit 3: NC
Bit 2: Magnetic interference flag, 0 means normal, 1 means abnormal.
Bit 1: Broken line sign, 0 means normal, 1 means abnormal
Bit 0: Low voltage alarm flag, 0 means normal, 1 means abnormal
Address field
4
The device address, the factory default is the last 4 bytes of LoRaWAN
module DevEUI, which can be modified by command.
Data area
4
BCD code，Unit L, current cumulative number
Checksum
1
Accumulate sum, the cumulative sum of one byte of data from the frame
header to the check
Long data frame format:
Name
Byte
Note
Frame header
1
Fixed 0x55
Frame number
1
Data frame accumulator, value range 0 to 255, cyclic accumulation
Address field
4
The device address, the factory default is the last 4 bytes of LoRaWAN
module DevEUI, which can be modified by commands.
Function code
1
Fixed 0x01
Data area
4
BCD code, unit L, current cumulative number
Freeze data on
previous day
4
BCD code, unit L
Clock
6
Format is Year, month, day, hour, minute
Battery voltage
1
Current battery voltage, the actual voltage value needs to be divided by
10
Status byte
1
Bit 4-Bit 7: Reserved, the default is 0
Bit 3: NC, the default is 0
Bit 2: Magnetic interference flag, 0 means normal, 1 means abnormal.
Bit1: Broken line sign, 0 means normal, 1 means abnormal
Bit 0: Low voltage alarm flag, 0 means normal, 1 means abnormal

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Checksum
1
Accumulate sum, the cumulative sum of one byte of data from the frame
header to the check
Terminator
1
Fixed 0x16
Take long data frame as an example
55 05 00 31 00 29 01 00 39 58 68 00 39 50 00 19 12 13 16 31 09 36 02 FD 16
Bytes
Remarks
55
Frame header, fixed to 0x55
05
05 represents the 5th frame data sent by the module
00 31 00 29
It is the address of device, which is taken from the last four bits of DevEUI of
LoRaWAN module
01
Reserved, fixed to 0x01
00 39 58 68
It is the current reading of the meter, representing 395868 liters, converted to
395.868 cubic meters
00 39 50 00
It is the value of freezing in previous day, representing 395000 liters,
converted to 395 cubic meters
19 12 13 16 31 09
It is the current time of the equipment when transmitting this frame,
representing 16:31:09 on December 13, 2019
36
36 represents the current battery voltage is 3.6V
02
02 is converted to binary 00000010, at this time, B0 is 0, B1 is 1, and B2 is 0,
which respectively represents normal voltage, disconnected line and no
magnetic interference.
FD
FD is the checksum, cumulative sum from the frame header to the previous
byte
16
End character, fixed to 0x16
4.2 Setting Command
Parameters of PULSE915-LRW can be set and read by AT command, the format of
commands is shown in the following table.
Table 4- 1 Format of commands
Command
Note
Ack (Success)
Ack (Failure)

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AT+I
Query the current
electronic index, the unit
is m³
InitValue = xxx.xx
Error
AT+I=xxxxx.xxx
Set the initial index, such
as the current value of
meter. Max. value is 5
integers and 3 decimal,
the unit is m³.
For example, to set the
initial index is 55.123,
the command is as
follows:
AT+I=55.123
Set InitValue = xxxxx.xxx
Error
AT+P
Query pulse constant
PulseConst = xxx
Error
AT+P=xxxx
Set the pulse constant,
1set value2000.
For example, to set the
pulse constant is 1000,
the command is as
follows:
AT+P=1000
Set PulseConst = 1000
Error
AT+T
RTC real-time clock
query
RTC real-time =
year.month.day_week_hour
:minute:second
Error
AT+T=xx.xx.xx x xx:x
x:xx
RTC real-time clock se
tting, the format is xx.x
x.xx_x_xx:xx:xx (year.m
onth.day_week_hour:mi
nute:second)
Note that Saturday and
Sunday, correspond to
number 6 and 7.
For example, to set the
time On January 21,
2018, Sunday at 14:00,
the input command is as
follows:
AT+T=18.01.21 7
14:00:00
Set RTC Success
Error
AT+DA
Check the product
address
Address = ********
AT+DA=“Device
address”
Set the product's mailing
address, 4 bytes of
Set Address = ABCDEF01

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hexadecimal digits.
Example: AT+DA
=ABCDEF01
AT+VP
Read pull-up resistor
configuration of external
Vcc and two pulse
sampling ports
Vcc = **(ON), Pull Up =
**(OFF)
AT+VP=”vcc
state”,”Pull up state”
Set pull-up resistor of
external Vcc and two
pulse sampling ports.
ON is open
OFF is close
Example: AT+VP=ON,
OFF
Set Vcc = ON, Pull Up =
OFF
AT+NP
Read pulse type,
support signal and
double type.
1 is signal
2 is double
Pulses = 1
AT+NP=“Number of
pulses”
Set type for single or
double pulse, valid
digits: 1, 2
Example: AT+NP=1
Set Pulses = 1
AT+RC
Read reporting period
Report Cycle = ****
AT+RC=“Report cycle”
Set the reporting period
in minutes.
Valid range: 1-99999
Example: AT+RC=1440
Set Report Cycle = ****
AT+UFM
Query report frame
format
Frame Mode = 1
AT+UFM=“Update
frame mode”
Configure the report
frame format, which can
be set to two formats:
short frame and long
frame.
0 short frame format
1 long frame format
Example: AT+UFM=1
Set Frame Mode = 1
AT+RST
Reset the device
Reset now
AT+V
Query the current
software version
version:0.3
Error

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AT+DR=band
Set the frequency band.
For example, set the
band to AU915. The
command is:
AT+DR=AU915.
+DR: XXXXXX
AT+CH=NUM, chm-chn
Set channel. The
transmit channel of the
module must be
consistent with the
receive channel of the
gateway.
For example, set the
channel to 0-7. The
command is:
AT+CH=NUM, 0-7
+CH: NUM, 0-7
AT+POWER=xx
Set the transmit power ,
For example, set the
transmit power to
20dBm, the command is
AT+POWER=20
+POWER: 20
AT+ID=DevAddr,
"xxxxxxxx"
Set DevAddr, "xxxxxxxx"
to an 8-digit
hexadecimal number.
For example, set the
DevAddr ID to
01234567, the
command is:
AT+ID=DevAddr,
"01234567"
+ID: DevAddr, 01:23:45:67
AT+ID
Query LoRaWAN
module ID information:
DevAddr, DevEui,
AppEui
+ID:DevAddr, 00:F3:50:02
+ID:DevEui,
47:A7:CA:DD:00:2B:00:49
+ID:AppEui,
52:69:73:69:6E:67:48:46
AT+MODE=LWOTAA
Set the module to
LWOTAA mode
+MODE:LWOTAA
AT+MODE=LWABP
Set the module to
LWABP mode
+MODE:LWABP
“_” means space.
Pulse constant: The number of pulses generated per 1m3of the water meter. Example:

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Each pulse of 1 liter of water produces 1 pulse, that is, 1 m3of water meter will produce
1000 pulses, then the pulse constant should be 1000 (if the pulse constant is reset, the
initial reading must be reset).
Parameter configuration can be manually entered through the serial port debugging
assistant, or can be carried out using the PC software provided by Friendcom.
5Parameters Configuration
5.1 Parameters Configuration
Before using the PULSE915-LRW terminal, we need to configure some parameters, such as
initial index, pulse constant, RTC real-time clock, pulse type (single or double pulse), sensor
type (hall or reed switch) and other LoRaWAN information. The configuration mode supports
wired and wireless. For detailed operation steps, users can refer to
Friendcom_PULSE915-LRW_Configuration_User_Manual.
5.1.1 Wired Configuration Mode
Connect this product to the USB port of computer through the USB to TTL interface adapter.
The ports that need to be connected to this product are as follows:
Table 5- 1 Device to USB wiring
Device port name
Function definition
USB to TTL Adapter
Remarks
IO1-R
Data receive
RxD
TTL Level 0-3.6V
IO1-T
Data transmit
TxD
TTL Level 0-3.6V
GND
Power ground
GND
5.1.2 Wireless Configuration Mode
Plug the wireless USB adapter FC-714-USB into your computer and install the correct driver
to configure the product wirelessly.

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5.1.3 Entering Configuration Mode
PULSE915-LRW terminal can be activated by magnet to enter configuration mode. Both the
wired configuration mode and wireless configuration mode need to be activated before
parameters configured.
The reed switch inside the product is triggered by the magnet to put the product into the
configuration mode, and then the configuration command must be sent within 30 seconds. If
the product does not detect the configuration command in 30 seconds, the configuration
mode will be exited. Once the command is received, the product will keep in configuration
mode for another 30 seconds.
The trigger position is shown in the figure below.
Figure 5- 1 Magnet activation position
The time that magnet triggers the reed switch to connect (the duration from connect to the
break) and the corresponding functions are shown in the following table:
Magnet hold time
Features
Remarks
2s-4s
Report data once
Typically 3s
4s-9s
Configuration mode
Typically 5s