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RMS-300v2 Frequently Asked Questions

Question:
Can I use any power supply with RMS-300v2?

Answer:
No, RMS-300v2 was designed to use DC current only. DC voltage from 8 to 60 volts may be used. You may provide power to RMS-300v2 directly from an 8 to 60 volt battery bank, or use an Ac to Dc wall outlet transformer with at least 1000 ma rating.

Question:
I have four 6 volt batteries in series to make a large 24v battery. Can I use the Voltmeters to measure each individual 6 volt battery?

Answer:
Yes! Each voltmeter on the RMS-300v2 board is isolated with a chip-scale air core transformer. This enables each voltmeter to measure different voltage sources without any effect on the main board or other voltages.

Question:
Can the power relays be used with AC and DC current?

Answer:
Yes! The power relays on the RMS-300v2 device can be used for AC and DC powered equipment. Caution must be taken not to overload the current capacity for the relays. The relays can pass 5 amps.

Question:
Can the RMS-300v2 board be powered with POE?

Answer:
No! The RMS board does not accept power at the Ethernet RJ-45 connector. Doing so may damage the board and void your warranty. If you must use POE, then you can use our POE adapter found here.

Question:
Why does my Web Browser not display the RMS-300v2 web pages properly after a Firmware Upgrade?

Answer:
The firmware upgrade likely made some changes to how the web interface operates. Often web browsers try to help you by caching html information and refusing to show new content. Clear the cache in your web browser to make it display properly.

Question:
How long does it take to start generating graphs again after a reboot?

Answer:
Graphs should start appearing after 2 minutes.

Question:
When I restore a saved database to a new RMS-300 board, why does SNMPv3 not work?

Answer:
Likely you have changed the SNMPv3 username or password at some point. When you backed up the database, the current SNMPv3 username and password was saved in the database. The username and password is used to communicate with the SNMPv3 engine. When restoring the database to a new board, the username and/or password gets out of sync. To work around this problem, before you restore your saved database to a new board, set the SNMPv3 username and password on the new board to the same username and password stored in the database. Then do the database restore. This way the username and password stay in sync.

Question:
How do I use SNMPv3?

Answer:
First you will need a list of OIDs. OID stands for Object IDentifier. The OIDs for the RMS-300v2 board can be found in the ethertek MIB file: EtherTek MIB

You must manually terminate all OIDs with a .0 at the end. Below are some examples of using SNMPv3 GET on the command line to pull data from an RMS-300v2 board.

For more information on what snmpget is and how to use it, please see the link below.
http://www.net-snmp.org/wiki/index.php/TUT:snmpget

Question:
What setting do I use to set the timezone for my area?

Answer:
A timezone is a region on Earth that has a uniform standard time. Time zones are often represented by abbreviations such as EST-10, WST-8, CST+6. Enter the timezone setting for you area into the timezone setting box on your RMS board.
Click here for a partial list of timezone abbreviations.

Question:
How do I send email alerts to multiple email addresses?

Answer:
Separate each email address with a single space.

Question:
Where is a safe place to store my custom files that will not be overwritten by a firmware update?

Answer:
Store your custom files in /data/custom/. This is a safe area that is not overwritten by firmware updates.

Question:
My RMS board stopped sending email using smtp.gmail.com. What happened?

Answer:
Google often changes security settings on their email server stopping your RMS board from sending email. To fix this, you must create a Gmail App Password.

How to create an App Password for Gmail (2023 Update)

1. Log into your Gmail account and make sure 2-Step-Verification is enabled.
2. Visit your Gmail App Passwords page. You may be asked to sign in to your Google Account.
3. At the bottom, select Other and enter you own custom app name (example: RMS).
4. Under select device, choose Other and enter you own custom device name (example: RMS).
5. Click Generate.
6. Be sure to copy the password that was generated. When using the password, do not use the spaces.
7. In all of your RMS boards email settings, use the newly generated App Password in place of your Gmail account password.