SKU: 25122903847

REC DB9 to RJ45 CAN-Bus Cable (Victron Cerbo/ Venus/ CCGX)

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Description

REC DB9 to RJ45 CAN-Bus Cable (Victron Cerbo/ Venus/ CCGX)REC DB9 to RJ45 CAN Bus Cable: Reliable Communication Between REC BMS and Victron GX Devices Purpose Built CAN Bus Cable for Seamless BMS Integration The REC DB9 to RJ45 CAN Bus Cable provides a direct, reliable link between your REC Active BMS or REC Q BMS and Victron GX devices such as the Cerbo GX, Venus GX, or Color Control GX. This cable enables real time battery monitoring and control by transmitting CAN bus data from the BMS to the Victron

REC DB9 to RJ45 CAN-Bus Cable: Reliable Communication Between REC BMS and Victron GX Devices

Purpose-Built CAN-Bus Cable for Seamless BMS Integration

The REC DB9 to RJ45 CAN-Bus Cable provides a direct, reliable link between your REC Active BMS or REC Q BMS and Victron GX devices such as the Cerbo GX, Venus GX, or Color Control GX. This cable enables real-time battery monitoring and control by transmitting CAN-bus data from the BMS to the Victron ecosystem, ensuring your energy storage system operates with precision and safety.

Engineered for compatibility with the REC BMS CAN-bus protocol, this cable supports both 500 kbit/s (Cerbo GX) and 250 kbit/s (other GX devices) data rates. It eliminates guesswork and custom wiring, reducing installation time and the risk of communication errors that can lead to system faults or battery damage.

Key Features

  • Plug-and-Play Connectivity: Pre-terminated DB9 female connector for the REC BMS CAN port and RJ45 connector for the Victron GX device, with no soldering or crimping required.
  • Integrated Termination: Includes a matched RJ45 termination plug with 120 Ohms across CANH and CANL, ensuring proper bus termination for stable communication.
  • Durable Construction: High-quality cable jacket resists abrasion and environmental stress, suitable for permanent installations in battery compartments or control cabinets.
  • Precision Wiring: DB9 pinout follows REC specifications: Pin 2 (CANL + termination), Pin 3 (GND), Pin 7 (CANH + termination), guaranteeing correct signal integrity.
  • Versatile Compatibility: Works with REC Active BMS (4 cells) and REC Q BMS (5-16 cells), covering a wide range of lithium battery configurations.

Why Proper CAN-Bus Cabling Matters

In a CAN-bus BMS system, the physical layer is critical. Poor-quality cables or incorrect termination can introduce signal reflections, data corruption, and intermittent communication dropouts. This REC cable is designed to meet the exact impedance and termination requirements of the Victron CAN-bus network, reducing the risk of BMS communication failures that could lead to overcharge, undercharge, or cell imbalance.

Unlike generic DB9-to-RJ45 adapters, this cable includes the necessary end-device termination resistor, which is often overlooked in DIY setups. Without proper termination, the CAN bus may become unreliable, especially in electrically noisy environments like engine bays or inverter compartments.

Installation Guidance

Connect the DB9 end to the CAN port on your REC BMS, and the RJ45 end to the BMS-Can port on a Cerbo GX, or the VE-Can port on other GX devices. Insert the supplied termination plug into the unused CAN socket on the GX device to complete the bus. For optimal performance, ensure the cable is routed away from high-current power cables to minimise electromagnetic interference.

This cable is specifically designed for REC BMS to Victron GX communication and is not intended for use with other BMS brands or non-Victron devices without verifying pinout compatibility.

Applications

  • Integrating REC BMS with Victron Cerbo GX for remote monitoring via VRM Portal
  • Enabling closed-loop communication between REC-managed lithium batteries and Victron inverter/chargers
  • Retrofitting existing battery systems with CAN-bus control for improved state-of-charge accuracy
  • Professional marine, RV, and off-grid solar installations requiring robust BMS data links

Get Connected with Confidence

Ensure your REC BMS and Victron GX device communicate flawlessly. Add the REC DB9 to RJ45 CAN-Bus Cable to your system today and benefit from reliable, real-time battery management data.

Shipping Notes
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SKU: 25122903847

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4.0 ★★★★★
Based on 22 reviews
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Product Reviews
R
Verified Purchase
R Spires
Alexandria, US
★★★★★ 4
High on Tropes and Satisfaction
Format: Kindle
This is a great Romantasy book full of action, adventure, and everything you look for in this genre. I won’t lie: it does kinda feel like the author found every common trope from every successful book of this kind and threw them all into this novel. But if it ain’t broke, don’t fix it. Especially in romance, there’s a large audience who has specific expectations, and they want them every time. Nothing wrong with that and many times I’m one of them. I have no idea what defines a spoiler honestly, so spoiler alert!!!!!!! Tropes include: Only one bed at the inn/bar Dissatisfaction with life before hunk appears Lost royalty The chosen one Montage of dress up time followed by shocked hunk Forbidden romance between two from rival peoples Power that cannot be controlled, simply guided/asked Gathering intel at the inn/bar FMC who knows how to fight/use weapons well There’s probably more but no need to list them all. Good story and I would recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 14, 2024
L
Verified Purchase
Lisa B.
Omaha, US
★★★★★ 5
OUTSTANDING
Format: Kindle
This was very, very good. The world is vast and characters are complex. There is a good plot with a whole lot going on. This is well written. Good twists and turns and some heart breaking moments. You will love these characters, they have heart and loyalty. I am hoping that there will be several more books. We've yet to see anything from the Sea Court but only a mention of them here and there. The Wood Court was given a quick couple of scenes, and only as far as some warriors, we've yet to enter their court and the Shadow Court, I'm not sure if they will be a force for good or bad, but they definitely will play a much bigger role moving forward. This is primarily the Ice and Air Courts. Told in multiple views, which I loved, it gives you a chance to see things from different eyes. There's alot of political maneuvering and deception. I loved it and will pick up the next book as it becomes available. If you like The Fae and the courts, you should love this. I think the author has mucn in store for us.
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Reviewed in the United States on March 8, 2020
J
Verified Purchase
Jessika
San Leandro, US
★★★★★ 4
Definitely worth the read!
Format: Kindle
After taking a deep breath and taking in that wicked twist of an ending, I have finally composed myself. My first thought when I started this book was that I love Reyna's character. I was intrigued by her connection with her familiar and the Ruin that is plaguing her land. It came as no surprise that she took her sister's place in an attempt to protect her. When they reach the Air Court everything slows down. This is where it was iffy for me. First of all, I like multiple POV's in books however 7 is a bit much. It starts to interrupt the story line. I felt like I was finally making progress connecting with one character, then it was switched to another person. I felt they all had necessary or pertinent information but not necessarily were they all POV worthy. The only other thing that annoyed me was that Reyna constantly was " trapped." She would rush off without thinking, only to need rescuing. She is brilliant in a fight, but she really doesn't think through anything. Lorcan is amazing. I know he might be on the "bad" list, but his background is so interesting. Eislyn(Reyna's sister) is really so sweet, but calculating. I enjoyed her and Thane's dialogue. The author did an amazing job with the imagery in this book. Everything was so detailed it was easy to fall into the scene. I love unexpected twists and while part of the ending I expected, I wasn't expecting how it took place. All in all, I found it very entertaining and I am very invested in continuing this series. Favorite quotes: "The truth may be twisted but never false." "Who was she if she was not the enemy of the Air Court? What was her purpose of she no longer has that?" "In a war-torn land, love was always a lie."
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2020
K
Verified Purchase
KAB
Belleville, US
★★★★★ 5
Great Read!!! Great story!!!
Format: Kindle
The series is long, but Ms. Wolfhart does a fantastic job of weaving this tale while bringing so much to the characters. Surprises and plot twists along the way to keep you intrigued. There is some graphic sex, but is no way the focal point. Grammar was excellent (a rare find with a lot of self publishers) with only a few noted errors. I rarely give 4 stars, let alone 5.
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Reviewed in the United States on April 30, 2021
E
Verified Purchase
Elisa
West Palm Beach, US
★★★★★ 3
Sadly, DNF
Format: Kindle
I read this thru KU. I LOVED the synopsis. And then I began reading... and it was a DNF at 68% after picking it up and putting it down several times because I really loved the main female character. *****SPOILERS***** Pros: The world is unique, intriguing and fun. The primary female character is bad-a** but not a b*tech or a mary sue. The primary female has depth. I really want to know what happens to her even tho it's been weeks and I don't remember her name. The villains to the point I read are pretty good -- an ever present threat of mysterious and possibly many culprits. Cons: Way, way too many points of view. I stopped counting at 7. It's the prime reason why I don't care about most of the characters or remember their names even when I like them. There's just too many points of view so almost none of the characters have enough book space for the author to properly develop them. This literally killed the book for me. Actually it killed my desire to read. For weeks. The main male is more villain than hero. He agreed to marry the main female then locks her up & eschews her for her sister, all while bad mouthing her as unfit to rule when he never spent any time with her getting to know her. He is actually unfit to rule as he is blind to the woes of his own kingdom and starts off a peace mission to secure a ceasefire through marriage by murdering an inn full of people in her country for no real reason. Plus, he constantly makes promises he does not keep. And it's gross of him to pine for the sister behind the main female's back. ***** As much as I really wanted to see what happened to the main female character, it wasn't enough for me to keep trying to slog thru this book. There was a lot of potential here that just fell short. Hence, 3 stars.
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Reviewed in the United States on June 19, 2021

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