HUIZHOU EPEVER TECHNOLOGY CO., LTD TEL: +86-752-3889706 Website: www.epever.com
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2
GPRS Transmission Terminal
EPEVER RTU 4G A
1. Important Safety Instructions
Read the instructions and warnings in the manual carefully before
installation.
The product should be situated away from the rain, exposure, dust,
vibration, corrosion, and intense electromagnetic environment.
Please avoid water and other liquids entering the product.
Never use the product at sites where electrostatic could occur, and avoid
the antenna close to a metal object.
DO NOT disassemble or attempt to repair the product.
Power supply: 9~48VDC can be customized according to customers'
requirements.
Enable GPRS service for the SIM card before installation.
2. Overview
EPEVER RTU 4G A is a new wireless data transmission terminal based on
the 4G network. With the GSM/GPRS SIM card, the connected devices can
easily access the EPEVER cloud server to realize remote, wireless, and
networked communication. EPEVER RTU 4G A is suitable for EPEVER solar
controller, inverter, and inverter/charger.
Features:
Extensive network coverage and flexible networking
Low operating costs (charged by network flow)
Adopt a non-standard DB9 male terminal
Embedded in Modbus RTU protocol
Automatic restore after disconnection
Support RS485 communication
3. Appearance
★
The pin definition of the terminal(DB9 female) connected to the DB9
male terminal
❸
is follows.
Indicators
You can observe the indicators' color and status through the hole
❷
.
Name
Color
Status
Instruction
Network indicator
(LED2)
Red
On solid
Correct power supply
Not registered to the network
Slowly
flashing (5s)
Successfully registered to the
network
Sync. Indicator
(LED1)
Green
Slowly
flashing (5s)
Successfully registered to the
network
Power indicator
(LED2)
Green
Turn off after
a flashing
Correct power supply
4. Parameter Configuration
Step1:
Connect the DB9 male connector
❸
to the PC through a DB9 to USB
adapter.
Note: Connect an external power adapter to the DB9 female terminal to supply the
EPEVER RTU 4G A.
Step2:
Insert the SIM card and power on the EPEVER RTU 4G A. For detailed
SIM card installation, refer to chapter
6, Installation
.
Step3:
Open the configuration tool on the PC and click the "
connect
" button
to connect the EPEVER RTU 4G A successfully.
Step4:
Click the "
Read
" and "
Write
" buttons to configure the parameter.
Step5:
After configuring, power on the product again to make the modified
parameters take effect.
Common configuration parameters:
Parameters
Configuration
Server Info
No modifications are recommended
APN
Different countries have different APNs, and please make sure
APN first. Products will not be connected to the Internet with fault
APN.
China APN: CMNET
APN User
Enter it according to the actual
APN Key
Enter it according to the actual
Baud
Set it according to the connected controller or inverter
Note: The
"
APN
"
will be identified automatically. If it cannot be identified, the end-
user can configure it by the above procedures.
5. Installation
Step1: Install the SIM Card
①
Purchase a SIM card and activate the GPRS service.
②
Undo the three screws from the EPEVER RTU 4G A.
③
Push the shell upward and take out the circuit board.
④
Take out the small SIM card and insert it into the card slot correctly.
⑤
After installing successfully, reinstall the product shell.
Step2: Install the silicone pad
Tear off the silicone pad's adhesive and stick the silicone pad to the DB9
terminal of the EPEVER RTU 4G A.
Step3: Install the antenna
Connect the 4G antenna
to the antenna port of the EPEVER RTU 4G A.
Caution: As a wireless terminal, keep the antenna away from the human body as far
as possible during the operation process.
Step4: Connect the device
Take the connection with the solar controller as an example.
Connect the DB9 connector of the RS485 communication cable to the
EPEVER RTU 4G A, then connect the ends of the RS485 communication
cable to the master LORA module and the battery separately.
※
Thanks for selecting the EPEVER RTU 4G A solar wireless collector.
Please read this manual carefully before using the product.
※
Please keep this manual for future reference.
❶
Antenna port
❸
DB9
male connector
★
❹
Fixing screws
Item
Terminal
Definition
1/2
NC
Floating
3
VCC2
Power2 (12V/200mA)
4
GND2
Power GND2
5
GND1
Power GND1
6
NC
Floating
7
RS485-A
RS485-A
8
RS485-B
RS485-B
9
VCC1
Floating
Insert the SIM card in the direction
❷
Hole
Step2
Step3
