USR IOT USR-DR502-E Manuale utente
USR-DR502-E User Manual Technical Support: h.usriot.com
Jinan USR IOT Technology Limited www.pusr.com
2
USR-DR502-E User Manual.....................................................................................................................................................1
1. Introduction..............................................................................................................................................................................3
1.1. Overview...................................................................................................................................................................... 3
1.2. Features....................................................................................................................................................................... 3
2. Get Started.............................................................................................................................................................................. 4
2.1. Specification................................................................................................................................................................ 4
2.2. Hardware..................................................................................................................................................................... 5
2.2.1. Dimensions...................................................................................................................................................... 5
2.2.2. Interface........................................................................................................................................................... 6
2.2.3. Indicators..........................................................................................................................................................6
2.3. Connecting Hardware................................................................................................................................................ 7
3. Utility Configuration................................................................................................................................................................8
3.1. Download the Utility................................................................................................................................................... 8
3.2. Starting the Configuration Utility.............................................................................................................................. 8
4. Serial Port..............................................................................................................................................................................10
4.1. Basic Parameters.....................................................................................................................................................10
4.2. Frame Forming Mechanism....................................................................................................................................11
4.2.1. Time Trigger.................................................................................................................................................. 11
4.2.2. Length trigger................................................................................................................................................ 11
5. Selecting an Operating Mode............................................................................................................................................ 12
5.1. Transparent Mode....................................................................................................................................................12
5.2. HTTPD Client Mode.................................................................................................................................................15
5.3. SMS Mode.................................................................................................................................................................17
6. General Function..................................................................................................................................................................20
6.1. Identity Package.......................................................................................................................................................20
6.2. Heartbeat Package.................................................................................................................................................. 22
6.3. Socket Distribution Protocol................................................................................................................................... 23
6.4. USR Cloud................................................................................................................................................................ 24
6.5. Backup Socket..........................................................................................................................................................24
6.6. Security...................................................................................................................................................................... 25
6.7. NTP............................................................................................................................................................................ 27
6.8. FTP Upgrade............................................................................................................................................................ 28
6.9. Base Station Geolocation....................................................................................................................................... 28
6.10. Firmware Upgrade................................................................................................................................................. 28
6.11. Restore to Factory Default Settings.................................................................................................................... 29
6.12. Timeout Restart......................................................................................................................................................30
7. AT Commands......................................................................................................................................................................30
7.1. AT Command Settings............................................................................................................................................ 30
7.2. Serial AT Commands.............................................................................................................................................. 31
7.3. Network AT Commands.......................................................................................................................................... 31
7.4. SMS AT Commands................................................................................................................................................ 32
USR-DR502-E User Manual Technical Support: h.usriot.com
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1. Introduction
1.1. Overview
USR-DR502-E is a LTE CAT 1 communication modem, which supports LTE and GSM, covers the mainstream
frequency bands of European operators. It has perfect software function, supports TCP/UDP transparent
transmission, SMS transmission, HTTPD Client mode and AT command configuration. In addition, it is simple
to configure, has high reliability and built-in hardware watchdog, supports FOTA upgrading.
USR-DR502-E supplies a wide voltage range power through terminal interface, RS485 standard interface,
meets the needs of different application scenarios.
1.2. Features
Equipped with CAT-1 network, 10Mbps download rate, 5Mbps upload rate, meeting 80% of the data
transmission application scenarios
Low latency in milliseconds
Multiple modes, supports LTE CAT 1 and GPRS
Wide coverage, high stability based on existing 4G network
Supports TCP/UDP, HTTPD and SMS transparent transmission
Each socket supports buffering 20 packets of serial port data, each packet is up to 4K
Supports parameter configuration via network, serial and SMS AT command
Supports base station geolocation and NTP function
Support 9~36V wide voltage supply
Multiple indicator lights, convenient and accurate to check the device status
Industrial grade, hardware watchdog, high reliability
USR-DR502-E User Manual Technical Support: h.usriot.com
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2. Get Started
2.1. Specification
Parameters
Description
Basic Parameters
USR-DR502-E
Supports B1/B3/B7/B8/B20
Power
DC 9V~36V
Operating current
Average: 21mA-50mA, maximum: 54mA (12V)
Indicators
POWER, WORK, NET, LINK, Signal strength, TX, RX
SIM/USIM
3V/1.8V SIM slot, Micro SIM
USB interface
Slave, MicroUSB, USB 2.0 High speed
UART interface
RS485, baud rate 1200~230400 bps.
Antenna interface
SMA female cellular antenna connector
Environmental
Dimensions(mm)
28 x 64.7 x 109.7（L*W*H）
Weight(g)
<110g
Temperature
Operating temperature
-30℃~ +75℃
Storage temperature
-40℃~ +90℃
Humidity
Operating humidity
5%~95% (non-condensing)
Transmission
speed
LTE FDD Rel.13
10MbpsDL/5Mbps UL
GPRS
85.6KbpsDL/85.6Kbps UL(multi-slot class 12)
Bands
LTE FDD
B1/B3/B7/B8/B20
GSM
900/1800MHz
TX Power
FDD:B1/3/7/8/20/28
23dBm±2dB
GSM:900MHz
33dBm±2dB
GSM:1800MHz
30dBm±2dB
Rx Sensitivity
GSM:900MHz
-109.5dBm
GSM:1800MHz
-108dBm
FDD:B1/3/20
-98dBm
FDD:B7
-97.5dBm
FDD:B8/B28
-98.5dBm
Software
Operating mode
TCP/UDP/HTTPD/SMS transparent transmission, CMD mode
Configuration command
AT+command
Network protocol
TCP/UDP/DNS/FTP/HTTP/IPV4/IPV6
Socket number
4
User configuration
Serial/Network/SMS AT command
Features
Socket distribution protocol
Support
Heartbeat package
Support ICCID/IMEI/SN/User-defined/LBS
Identity package
Support ICCID/IMEI/SN/User-defined/CLOUD
USR-DR502-E User Manual Technical Support: h.usriot.com
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2.2.2.Interface
2.2.3.Indicators
There are ten indicators on USR-DR502-E.
Indicator
Function
Status
POWER
Power indicator
Always on after normal power
supply.
WORK
Working status indicator.
Flashes.
NET
Network status indicator
Flashed after connecting to network.
LINKA
Socket A connection status indicator
Always on after socket A is
connected
LINKB
Socket B connection status indicator
Always on after socket B is
connected
TX
Serial port data sending indicator
Will be on when sending serial data
RX
Serial port data receiving indicator
Will be on when receiving serial data
Level 1 signal
strength
Level 1 signal strength indicator
Always on when signal strength
between 4 ~15 (CSQ)
Level 2 signal
strength
Level 2 signal strength indicator
Always on when signal strength
between 16 ~ 21 (CSQ)
Level 3 signal
strength
Level 3 signal strength indicator
Always on when signal strength
greater than 21 (CSQ)
USR-DR502-E User Manual Technical Support: h.usriot.com
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2.3. Connecting Hardware
If you have purchased, there will be the following accessories:
USR-DR502-E
Sucker antenna
Power adapter
Conversion cable
Required additional equipment:
RS485 serial to USB adaptor
PC
1. Installing SIM card and antenna：
Insert the SIM card according to the sign next to the slot. Then Install the antenna.
2. Serial Connecting:
Connect pin A of the RS485 interface of the DR502-E to pin A of the RS485 to USB adaptor, pin B of
DR502-E to pin B of the adaptor.
3. Power Supply:
Connect 9-36V DC power adapter via the conversion cable to power the DR502-E. Then “POWER”
indicator will always on and the “WORK” indicator will flash.
USR-DR502-E User Manual Technical Support: h.usriot.com
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3. Utility Configuration
3.1. Download the Utility
Please download the utility in this link:
https://www.pusr.com/products/4G-Cat-1-Modem.html
3.2. Starting the Configuration Utility
USR-DR502-E utility is shown as following:
USR-DR502-E User Manual Technical Support: h.usriot.com
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Description:
1. In PC serial parameter setting area, it is necessary to set the serial parameters consistent with the serial
device, otherwise they cannot communicate with each other.
2. Working mode selection area, select the work mode of the modem.
3. In the parameter setting area of characteristic functions, set parameters related to modem's featured
functions.
4. Modem parameter area, setup some basic global parameters.
5. Common command button, click to send the self-input command.
6. Data receiving and display area, displaying the data sent and received.
7. Data sending area, input the data and click Send.
USR-DR502-E User Manual Technical Support: h.usriot.com
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4. Serial Port
4.1. Basic Parameters
Serial parameters of USR-DR502-E must be consistent with the parameters of the serial device. Serial port
parameters include basic parameters and framing parameters.
Item
Parameter
Baud rate
1200~230400bps
Data bit
8
Stop bit
1,2
Check bit
NONE
EVEN
ODD
Indice
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