For example, I will take the ETP4830 A1 power supply at 48V 15A (there is a model for 30A) and connect it to the MA5608T so that I can monitor the percentage of battery charge, set the correct parameters for charging batteries (default 53.5V floating and 56.5V accelerated) their capacity (the default is 40Ah or 65Ah), etc.
I ordered these blocks on Alibaba with delivery via Meest China.
To connect, I did not use a standard ethernet patch cord, but with such a pinout, the first column for MCUD1 in the OLT is a regular crimp for ethernet, the second for SMU01C or a similar module, for example PMU11A, EPMU03:
| 1 (white-orange) | 7 (white-brown) |
| 2 (orange) | 8 (brown) |
| 3 (white-green) | – |
| 4 (blue) | 1 (white-orange) |
| 5 (white-blue) | 2 (orange) |
| 6 (green) | 4 (blue) |
| 7 (white-brown) | – |
| 8 (brown) | – |
The ETP4830 A1 (SMU01C) has a default flow rate of 9600 and address 0, if it is different on the OLT, then you can set 19200 using the buttons through the display on the SMU01C (default password is 000001) or execute the command on the OLT:
emu baudrate 9600
Add emu:
emu add 2 smu 0 0 "SMU01C"
Let’s see the status:
display emu 2
EMU ID: 2
----------------------------------------------------------------------------
EMU name : SMU01C
EMU type : SMU
Used or not : Used
EMU state : normal
Frame ID : 0
Subnode : 0
----------------------------------------------------------------------------
If everything is OK, the status is “normal” and not “fault”, then let’s move on to managing the added emu:
interface emu 2
Let’s see the current settings:
display power environment parameter
display power system parameter
EMU ID: 2 Power system information
----------------------------------------------------------------------------
Charge control state: Automatic control
Equalizing voltage : 56.50V Floating voltage : 53.50V
Charge Lmt quotiety : 0.15 Equalizing time : 60 days
Battery number : 1 Battery 0 capacity : 65 AH
Batt_temp_test_upper: 80 C Batt_temp_test_lower : -20C
Batt_temp_Alam_upper: 50 C Batt_temp_Alam_lower : -15C
Temp redeem quotiety: 80mV
AC over alarm voltage : 280V AC lack alarm voltage : 180V
DC over alarm voltage : 58 V DC lack alarm voltage : 45 V
Power module number : 0
Battery high-temperature-off permit : Permit
Battery high-temperature-off temperature: 53 C
Battery-lack-voltage-off-permit : Permit
Battery-lack-voltage-off voltage : 43.00V
Battery barcode : -
----------------------------------------------------------------------------
display power alarm
EMU ID: 2 Power alarm information
----------------------------------------------------------------------------
AC supply yes : Yes AC supply lack : Normal
DC voltage lack : Normal
Load fuse : Connect
Battery-high-temperature-off : On Battery-lack-voltage-off : On
Battery loop : Connect
Battery Temperature alarm : Normal
Module 0 : Normal
Module 1 : Normal
Door alarm : Alarm Water alarm : Normal
Smoke alarm : Normal Wiring alarm : Normal
Environment Temperature : Normal Environment Humidity : Normal
Battery Dectect : Normal
Battery 1 Temp-Sensor : Invalid Environment 1 Temp-Sensor : Invalid
Environment Humidity-Sensor : Invalid
----------------------------------------------------------------------------
DigitalID Name State |DigitalID Name State
Spare Dig0 Normal|Spare Dig1 Normal
Spare Dig2 Normal|Spare Dig3 Normal
Spare Dig4 Normal|Spare Dig5 Normal
Spare Dig6 Normal
----------------------------------------------------------------------------
An example of changing parameters, with a question mark, let’s see which parameter needs to be specified, since the order of specifying parameters on different devices is different:
power battery parameter ?
power battery parameter 1 0.10 60 65
Battery group num, default 1 (0-2) (0 – if batteries are disconnected)
Power battery charge limit quotiety, default 0.15 (0.05-0.25)
Equalizing charge time, default 60 days (30-240)
Battery group 0 capacity, default 65, unit is AH (5-1000)
If the batteries are less than 65Ah, then we will indicate the correct capacity and the correct charge factor, otherwise they will be charged with a large current and may swell after a while. For example, multiply the capacity by the charge factor and get the charge current: 100Ah*0.10=10A. It is advisable not to exceed a tenth, for example, for a capacity of 65Ah, the charge current is a maximum of 6.5A, if you specify less, then the batteries will take longer to charge.
An example of setting voltage and battery charging mode, humidity and temperature alarms:
power charge ?
power environment humidity ?
power environment temperature ?
Specify the date of installation of the batteries:
power batteryinstall 2023-03-10
display power batteryinstalltime
Battery test parameters:
power battery-test ?
power battery-test simply-test start
display power battery-test info all
display power battery-test parameter
EMU ID: 2 Battery test configuration parameter
----------------------------------------------------------------------------
Discharge test : auto-test forbid
Normal Test End-Voltage: 45.6 V
Normal Test Duration : 10 Hours
Simply Test End-Voltage: 45.0 V
Simply Test Duration : 60 Minutes
Test phase : Discharge complete
Battery alarm-threshold: 70 %
----------------------------------------------------------------------------
Exit the configuration mode and save the configuration:
quit
save
If you connect Lifepo4 batteries, you can use the buttons on the display to indicate Battery-lack-voltage-off 47.8, Load off 47.9, and for example floating 55.0 and equalizing (fast charging) voltage 55.5, depending on the battery characteristics. I specified the charging current for a 50A battery as 15A (in the settings I specified 0.25*60A), I note that the factory battery fuse is set to 20A.
See also documentation for SMU01C V300R002C03:
https://files.ixnfo.com/Manuals/Huawei/SMU01C_V300R002C03_User_Manual_etp48xx.pdf
See also my articles:
SNMP MIB/OID for Huawei ETP4830
Configuring ETP48100-B1 with Huawei OLT
Connecting and configuring EPS30-4815AF with Huawei MA5600