King Pigeon RTU5020 User manual

Remote Switch ON/OFF
Device with SMS!
2/4/8 Channel Relay Outputs
Schedule Switch ON/OFF
Device
Auto Report Status by SMS!
RTU5020/RTU5021/
RTU5022
User Manual
Ver 1.2
Date Issued: 2017-09-15
King Pigeon Hi-Tech. Co., Ltd.
www.GPRS-M2M.com
GSM/SMS/GPRS/3G/4G
Remote Relay Switch

Page 2 of 11 King Pigeon Hi-Tech. Co., Ltd. Ver 1.2
GSM/SMS/GPRS/3G/4G
Remote Relay Switch
Table of contents
1. Brief introduction -----------------------------------------------------------------------3
2. Safety Directions ------------------------------------------------------------------------3
3. Standard Packing list ------------------------------------------------------------------3
4. Mainly Features & Technical specifications --------------------------------------3
5. Physical Layout and Installation Diagram-----------------------------------------4
6. Initialize/Reset the unit ---------------------------------------------------------------6
7. Settings & Operations------------------------------------------------------------------7
8. Technical specifications -------------------------------------------------------------10
9. Warranty ----------------------------------------------------------------------------10
【UPGRADE HISTORY】
DATE VERSION FIRMWARE VERSION DESCRIPTION
2017.9.15 V1.2 V1.1
1.Add Modbus TCP Protocol
2.Revise the Timer Command
3.Support New Cloud Network App
【Gentle Reminder】
Please scan the QR code below or search in Apple store to download the APP for easy setting.
Normal SMS App（Remote Relay Switch） Cloud Control App (IoT RTU)
This handbook has been designed as a guide to the installation and operation of RTU5020,RTU5021,RTU5022
GSM SMS GPRS 3G 4G Remote Relay Switch.
Statements contained in the handbook are general guidelines only and in no way are designed to supersede the
instructions contained with other products.
We recommend that the advice of a registered electrician be sought before any Installation work commences.
King Pigeon Hi-Tech.Co., Ltd, its employees and distributors, accept no liability for any loss or damage including
consequential damage due to reliance on any material contained in this handbook.
King Pigeon Hi-Tech.Co., Ltd, its employees and distributors, accept no liability for GSM Network upgrading or
SIMCard upgrading due to the technology specifications contained in this handbook.

Page 3 of 11 King Pigeon Hi-Tech. Co., Ltd. Ver 1.2
GSM/SMS/GPRS/3G/4G
Remote Relay Switch
Model List
Model GSM/GPRS/3G/4G Relay Output Rated Voltage Rated Voltage
RTU5020 Optional 2
9~36VDC Optional: 110~220VAC@50Hz
RTU5021 Optional 4
RTU5022 Optional 8
Notice
1． Default version is GSM；
2． DIN 35mm Rail installation bracket is optional;
3. For 3G WCDMA and 4G LTE version, please tell our sales where you would like to use them.
1. Brief introduction
The GSM SMS GPRS 3G 4G Remote Relay Switch embedded GSM/GPRS/3G/4G module and high performance MCU
to provide a useful remote control solution. It special for real-time remotely switch on/off equipments through
wireless cellular network.
It provides 2/4/8 Relay outputs for schedules automatically switch ON/OFF devices or remote by SMS or GPRS/3G/4G
networks.
It has been designed as a cost effective, low power, easy use, and reliable controller. It can be used in the
worldwide through the wireless cellular network, operation in anywhere, no distance limitation.
Typically applications:
Street light, pump station, Server room, Warehouse, Transformer stations, BTS room, agriculture, Supervision and
monitoring alarm systems, etc.
2.Safety Directions
Safe Startup
Do not use the unit when using GSM/3G/4G equipment is prohibited or might bring disturbance or
danger.
Interference
All wireless equipment might interfere network signals of the unit and influence its performance.
3. Standard Packing List
Remote Relay Switch X 1; Antenna X 1; AC/DC adaptor (12V1.5A) X1; User Manual X 1.
Note: The package does not include any SIM card.
Optional: 35mm Standard DIN rail fixed Bracket

Page 4 of 11 King Pigeon Hi-Tech. Co., Ltd. Ver 1.2
GSM/SMS/GPRS/3G/4G
Remote Relay Switch
4. Mainly Features& Technical specifications
4.1 Mainly Features
 Can be operated from anywhere, no distance limitation;
 Quad band 850/900/1800/1900Mhz GSM GPRS Module inside;
 3G UMTS/HSDPA/4G Modules are optional.;
 32 bit MCU, reliable performance with in-built watchdog;
 Support 2/4/8 relay outputs,7A@125VAC,5A@125VAC, 20A@14VDC;
 Supports 1 DNS or IP address as server, supports Modbus TCP, TCP/IP protocol over GPRS/3G/4G network;
 Automatically resend the data while communication failure, GPRS failure will alert by SMS text;
 Supports remotely restart the device, and configure it by SMS commands remotely;
 Up to 10 user's phone number to receive daily report SMS and relay status;
 Provides daily report, schedule upload, event upload by the GPRS/3G/4G to monitoring center or by SMS to the
user mobile phone directly;
 Support Android/IOS APP, easily & friendly for use/config.
 Wall mount or 35mm standard DIN rail Design, convenient installation,
 Metallic cover, small size, exterior dimension is L105*W88*H30mm.
4.2 Technical specifications
Parameter item Reference scope
DC Power supply 9~24VDC, recommend 12VDC1A, optional 110~220VAC @50Hz
Power consumption 12V input Max. 400mA/Average30mA, standby 20mA ;
Cellular Frequency
2G: 850/900/1800/1900Mhz
3G version Optional: (UMTS/HSDPA)
W:900/2100@UMTS 900/1800@GSM;
C:850/1900@UMTS 850/900/1800/1900@GSM;
T:850/2100@UMTS 850/900/1800/1900@GSM;
4G LTE Version Optional
SIM Card Supporting 3V SIM Card
GSM/3G/4G Antenna 50 Ω SMA Antenna interface
Relay Outputs 2 Relay Outputs 7A@125VAC 5A@125VAC 20A@14VDC
Temperature range -40-+80 °C
Humidity range
Relative humidity 0~90% (condensation free)
Backup Battery 900mAH, last 8hours
Exterior dimension
W105mm*D88mm*H30mm

Page 5 of 11 King Pigeon Hi-Tech. Co., Ltd. Ver 1.2
GSM/SMS/GPRS/3G/4G
Remote Relay Switch
Installation
35mm standard DIN rail(Optional) Wall mount (Default)
Net Weight 500 g
5. Physical Layout and Installation Diagram
5.1 Control Unit physical layout
LED Indicator Instruction
Cellular indicator, registering cellular Network flicks quickly, registered successful will
2seconds filck once.
Relay indicator, any one relay close, will turn on.
Reset indicator, will turn on 5seconds while reset operation successful.
5.2 Interface Instructions for installation
At the backside of the panel, please use the tool to remove the screw, and you can see the below:

Page 6 of 11 King Pigeon Hi-Tech. Co., Ltd. Ver 1.2
GSM/SMS/GPRS/3G/4G
Remote Relay Switch
1) Insert SIMCard
Slide the SIM card holder in the direction of “OPEN” (etched on the SIM card holder), and then flip it open. Then
Insert the SIM card with its gold contacts facing down and its cut-off corner facing out the SIM card slot. See below
photo. Close the SIM card holder and then slide it in the opposite direction of “OPEN” to lock it. See above photo.
2) Connect External DC Power and Temperature&Humidity Sensor
See below interface, please contact the correct wires.
Interface Instruction
DC in 9~36V
+
DC9~36V positive input, 1.5A, for power on the Unit;
–
DC9~36V negative input, 1.5A, for power on the Unit;
AC Input
N
Neutral wire, connect to 110~220VAC @50Hz alternating current, for
power on the Unit;(Optional)
L
Live wire, connect to 110~220VAC @50Hz alternating current, for
power on the Unit; (Optional)
ANT
GSM/3G/4G antenna.
DC Out Out+
DC voltage output positive, the output voltage = DC Input voltage. Only
when the device powered on by DC power, these ports will output DC
voltage. If the device powered on by AC power, these ports will not
output DC voltage.
GND
DC voltage output negative input.
Relay Output
COM
Relay negative input.
1+
Relay 1 positive input.
2+
Relay 2 positive input.
3~8
Relay 3~8 positive input.
3) Connect electrical device to Relay outputs.
The unit provides 2/4/8 relay outputs; it can be used for control different device according to requirements.
The connection diagram is below:
Power Switch
SIMCard Holder
RESET Button Upgrade Button

Page 7 of 11 King Pigeon Hi-Tech. Co., Ltd. Ver 1.2
GSM/SMS/GPRS/3G/4G
Remote Relay Switch
6. Initialize/Reset the unit
The Unit can be reset to factory default once mistake programmed. Please follow below steps to initialize it. After
initialized, the parameters will set as factory default.
1) Switch off the Unit
2) Press the RESET button;
3) Switch the Power Switch to ON side to powered on the Unit, holding 5seconds, then loose the RESET Button.
4) Restart the unit then recovery to factory default settings, and will enter to work mode.
7. Settings&Operation
***Strongly Recommend using the APP to program it***
Notice:
1. The default Password is 1234.
2. The unit cannot support PIN Code Protected SIMCard.
3. You can program the GSM unit with SMS commands using your phone.
4. Remember that commands must be CAPITAL LETTERS. It is PWD not pwd, CAP not Cap etc. Don't add
spaces or any other character.
5. The pwd in the commands is means the password, when you use it, please in stand of it by the digital
number; the capital letters PWD is the command letter, use PWD directly.
6. In some GSM operators they use different SMS parameter; the units can’t return the SMS confirmation in
some gsm operators, but it can performance the functions correctly. Also, you can try to add the country
code before the number, see the below settings:
7. If the password is correct but the command is incorrect, the RTU502x will return:
SMS Format Error,
Please check Caps Lock in Command!
So please check the Command, or add the country code before
the telephone number or check the input is in ENGLISH INPUT METHOD and CAPS LOCK. If password
For example:
E.g.: the country code is 0086, or +86.
The user cell phone number is 13600000000 and has been assigned as a SMS Alert number, the simcard
number in the panel is 13512345678.
When you setup the number as the authorized number, please setup as 008613600000000 or
[phone]. Not 13600000000.

Page 8 of 11 King Pigeon Hi-Tech. Co., Ltd. Ver 1.2
GSM/SMS/GPRS/3G/4G
Remote Relay Switch
incorrect then will not any response SMS.
8. Once the Unit received the SMS Command, will return SMS to confirmation, if no SMS return, please
check your command or resend again.
9. The SMS commands that you will certainly use in the GSM units are the following:
**SMS Commands For Program and Operation the RTU502x**
1） Setup Device Time
If you want to use the timer function, then must setup the system time after power on. Otherwise, the unit
will run it at mistake time. And when the backup battery out of voltage, then the time information will lose
and should re-setup the time again.
Command Return SMS Example
Setup PWD+DyymmddThhmm xx(Y)XX(M)XX(D)xx(H)X(M) 1234D20170510T1258
Inquiry PWD+D xx(Y)XX(M)XX(D)xx(H)X(M) 1234D
2） Modify Password(4digits, Default is: 1234)
Command Return SMS Example
PWD＋P＋new password
[new password],This is the New Password,
please remember it carefully.
1234P4321 stands for change
password from 1234 to 4321
3） External DC Status
Event Return SMS Content
External DC goes off External DC Power Goes OFF
External DC Power Goes ON External DC Power Goes ON
5) Setup Device ID Number
SMS Command Return SMS Content
Setup PWD + IDxxxxx
xxxxx=1~65535. Default is 1.
ID:XXXXX
Inquiry PWD +IDE ID:XXXXX
6) Inquiry Current Status SMS command
SMS Command Return SMS Content
PWD+EE Model:
Version:
IMEI:
GSM Signal Value:
External DC Power Goes OFF/ON
DO1: Close/Open
DO2: Close/Open
-------
7) Setup 10 User Number, max 21 digits. ( Return 1~5 or 6~10 separately while setting.)
SMS Command Return SMS Content
Setup PWD＋A＋series number+T+tel number
Notice: Series number =1~10
e.g.: 1234A3T008613570810254 to
Tel1: ---
Tel2: ---
Tel3: 008613570810254
Tel4: ---

Page 9 of 11 King Pigeon Hi-Tech. Co., Ltd. Ver 1.2
GSM/SMS/GPRS/3G/4G
Remote Relay Switch
setup 008613570810254 as the 3
rd
number.
Tel5: ---
Inquiry PWD +A Return all numbers
Delete PWD +A+series number Return 1~5 or 6~10 numbers.
8) Setup Daily Report Time
SMS Command Return SMS Content
Setup PWD +DR+series number+T+xx+yy
(Notice: series number= 1~10, xx =00~23, stands for hour,
yy=00~59, stands for minutes. )
Daily SMS Report 1 at: xx:xx
Inquiry PWD +DR Daily SMS Report at: xx:xx
Delete PWD +DRDEL+ series number Daily SMS Report at: xx:xx
9) SMS Control Relay Output
SMS Command Return SMS Content
Set DO Name PWD +DO+channel number+T+DO Name DOx:xxxx
Inquiry DO Name PWD +DO+ channel number<nn> DOx:xxxx
Delete DO Name PWD +DO+ channel number<nn> +DEL DOx:
Switch ON(Close) PWD +DOC+ channel number<nn> DOx: ON
DOy:ON
Switch OFF(Open) PWD +DOO+ channel number<nn> DOx: OFF
DOy:OFF
Inquiry all DO Current
Status
PWD +DOE DO1: ON/OFF
DO2:ON/OFF
Set Pulse Output time PWD +DOP+ channel number<nn> +T+xxxx
(Notice:
xxxx=9999seconds, =0 stands for always
close)
DOx Pulse Output Time:xxxxS
Inquiry pulse output
time
PWD +DOT Pulse Output Time:xxxS
Pulse Output PWD +DOP+ channel number<nn>
10) Setup Timer(Total can setup 10 timer, every week to perform the preset actions, in timer action, the relay
exchange status will not alert SMS to users)
SMS Command Return SMS Content
Set Timer Relay Close Timer:
PWD+T+serial number(1~10)+Wx+Hhhmm+DOC
+ channel number
Relay Open Timer:
PWD+T+ serial number(1~10)+Wx+Hhhmm+
DOO+ channel number
Notice:
x =0-7, 0 stands for everyday,1~7stands for
Monday ~ Sunday, 1=Monday;
hh= 00~23, 2 digits, stands for hour;
mm=00~59, 2 digits, stands for minute;
Tips: Relay close time is according to Pulse
DOx: Weekly x hh:mm close
DOx: Weekly x: hh:mm open.

Page 10 of 11 King Pigeon Hi-Tech. Co., Ltd. Ver 1.2
GSM/SMS/GPRS/3G/4G
Remote Relay Switch
output time. Eg: Relay 1 pulse output time is
60s,then timer relay 1 close 60 seconds.
Inquiry PWD+T+serial number<nnnnnnnnnn> 1.
2.
…
Delete Timer PWD+T+Serial number+DEL
11) Reboot
SMS Command Return SMS Content
Reboot PWD+Reboot Restart the device
12) Setup the Server Parameter (Cannot Setup the DNS by SMS)
SMS Command Return SMS Content
Set Server IP PWD+IP+ IPaddress+*+Server port Server:
Port:
Inquiry PWD+IP Server:
Port:
Delete PWD+IPDEL Server:
Port:
13) Setup the GPRS Parameter (APN/USER NAME/PASSWORD)
SMS Command Return SMS Content
Set PWD+AP+apn+#+username+#+userpassword
(
Notice:
apn=access point name)
APN:
User Name:
Password:
Inquiry PWD+AP
Delete PWD+APDEL
14) Wakeup GPRS Online
SMS Command Return SMS Content
password+GPRSonline GPRS/3G/4G Online
Password+GPRSoff GPRS/3G/4G Offline
15) Setup the GPRS Communication Protocol
SMS Command Return SMS Content
Choose Modbus TCP protocol PWD+MTCP
Choose Definition Protocol PWD+DTCP
8. Data Communication Protocol
The RTU502x support GPRS/3G/4G data transfer to cloud server, support Modbus TCP protocol,
TCP/IP protocol and GPRS definition protocol. For GPRS Communication protocol, please refer to <RTU502x
GPRS/3G/4G Protocol Instruction>.
Modbus TCP Address: Support the function code 01,05,15

Page 11 of 11 King Pigeon Hi-Tech. Co., Ltd. Ver 1.2
GSM/SMS/GPRS/3G/4G
Remote Relay Switch
DO1 DO2 DO3 DO4 DO5 DO6 DO7 DO8
0X00 0X01 0X02 0X03 0X04 0X05 0X06 0X07
9. Warranty
1) This system is warranted to be free of defects in material and workmanship for one year.
2) This warranty does not extend to any defect, malfunction or failure caused by abuse or misuse by the
Operating Instructions. In no event shall the manufacturer be liable for any alarm system altered by
purchasers.
The End!
Any questions please help to contact us feel free.
Http://www.GPRS-M2M.com