SKU: 61835153921

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.

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SKU: 61835153921

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4.1 ★★★★★
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Ryan of the East Coast
Battle Creek, US
★★★★★ 5
Source material for Nolan's trilogy is powerful writing and art...
Format: Paperback
The Long Halloween is great, but I actually had more fun reading through Dark Victory. It's a crime mystery that consistently had me guessing through to the conclusion about who The Hangman's true identity was. What I really loved most was the evolution of the characters' personalities--from Jim Gordon to Harvey Dent to Bruce (who really is more in his iconic "Batman" persona here)--that began in Batman: Year One to Batman: The Long Halloween and into Batman: Dark Victory. It really does work like a trilogy. It's also notable to include Gotham city's underworld itself as a character of its own. Batman begins (pardon the pun) in Year One with a quest to sort of rid the city of the mafia, which is and has been the main criminal body up until this point. In The Long Halloween, the mafia begins to lose power because of the rise of the Batman's presence. During that time, some of the most insane and dangerous criminals escape Arkham Asylum and begin quietly terrorizing the city anew, spreading like a virus. Slowly, the "freaks"--as the mafia calls them--start to gain more and more power by simply being a more unorganized crime source (as opposed to organized crime). Characters like Pamela Isley, Solomon Grundy, Mr. Freeze, the Penguin, Scarecrow, the Joker, and others, establish and strengthen their grips on Gotham's criminal underworld. It's nice that these villains--these "freaks"--also aren't the main conflict in Dark Victory (or The Long Halloween or Year One, for that matter); they appear when it is effective for them to appear, slowly taking more prominence in the setting of the story as it progresses. The main conflict has to deal with the solving of the mysteries behind The Hangman killings. The Long Halloween and Dark Victory are, primarily, crime mysteries, which is what makes them interesting. What makes them great literature, however, is the creative team that is Jeph Loeb and Tim Sale. Loeb's writing is really well-crafted here: the entire arc unfolds at a consistent pace and he balances out dialogue with Batman's internal narration very smoothly. And, as I mentioned previously, personality and narrative arcs of the main characters (Gordon, Batman, and Dent) have fully matured by this point in the trilogy, leaving the supporting characters a chance to evolve and come into their own. Much of these progressions are not just depicted by the writing, however; Tim Sale (who worked previously with Loeb on The Long Halloween) elevates and perfects his artwork in this story. There's not a change in the look of the characters, so you know it's definitely his style, but you sense immediately (especially if reading Dark Victory right after finishing The Long Halloween) the new level of attention paid to composition of the drawings. Shadows and silhouettes, contrasts between setting and characters, everything adds to the mood and atmosphere of the characters and the scenes they're a part of. In terms of the print itself, the paperback is excellent. This and The Long Halloween have really nice paper, which I'll catch myself sometimes randomly sniffing in the middle of a read to enjoy the new paper smell. The ink is really crisp, the colors pop, and the design of the book itself is laid out very clearly. There aren't page numbers or a contents page, but every issue is separated by chapter pages that include gorgeous, high-contrast artwork to help distinguish which issue you're on. Additionally, the print comes with an introduction by David S. Goyer, who co-wrote the Nolan film trilogy. Overall, I can't stress enough how gorgeous this trade paperback is and how excellent and top-tier this story arc is. I really enjoyed it just as much, if not more so, then The Long Halloween. No other Batman story arc has topped my enjoyment of this particular trilogy. Highly recommended in addition to Batman: Year One and Batman: The Long Halloween.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2019
K
Verified Purchase
Kris
West Palm Beach, US
★★★★★ 5
I love this comic book!
Format: Paperback, Format: Paperback
I love DC comics and obviously the Batfam are some of the most well known and loved characters within the DC universe. I love the art style and story in this comic. If you are debating whether or not to purchase this comic, DO IT!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
A
Verified Purchase
Alex Lamberd
Grantham, US
★★★★★ 5
One of the best Bat stories that I've read.
Format: Paperback
Coming off from The Long Halloween, Jeff Loeb and Tim Sale give us the sequel to their popular story tale in which we see Batman go at it with another year long mystery, while also giving us an origin story for the first Robin, Dick Grayson. After reading this book, I have come away having with even more love of the Dark Knight's mythology, while coming to see this as my favorite Batman story that I have read, even if it doesn't stand as well on its own. ON the narrative side of things, Loeb delivers a story fairly similar to the one he gave in The Long Halloween, though I feel this one is a bit more polished than Halloween was. Some have said that the retreading of plot structure have limited the way Loeb's later works are read, but I myself have no problem with it (for the most part), Loeb manages to do enough differently that you don't feel like you're reading the exact same story. The real big negative I'd have to give this graphic novel is that it really doesn't stand as well by itself than if you had read The Long Halloween. While I myself read that story before coming in to this one, I did see many connections that I would assume would through off any newcomers who hadn't read the prior story. But I will say that this is the story that had me invested the most emotionally. Without giving away any spoilers, that last page in the novel gave me such a cathartic experience that I really came to appreciate certain aspects of the Dark Knight's mythology, and how themes of loneliness were touched upon in a very genuine way. Looking at the art for the novel, Sale's work has improved much from The Long Halloween. I always mention in reviews concerning Sale that I was originally not a fan of his art, but after going through his work, you can't help but admire the level skill he manages to put in his drawings. There is a very big noir feeling in this novel (a plus for ) that is just delivered so well that any preferences in art I may have against Sale are put away in admiring the way he plays with lighting in the story. My biggest complaint for the art, which is a more of a personal thing really, is that I do not like the "pixie" costume they gave Robin (which is his default costume that many would associate him with). I have never really liked this costume, probably never will, but again, this is just me. Overall, I would say I really enjoyed the novel and would have to recommend it to any fans of the Batman (although I'd make sure you have read The Long Halloween first). This has come to be one of my most favorited Batman stories I've read, and I hope others will receive the same level of satisfaction that I have.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2014
L
Verified Purchase
Logan Fogg
Alexandria, US
★★★★★ 5
MUST READ
Format: Kindle
Best Batman! This and the long Halloween are peak! Listening and reading the dc high vol on spotify is amazing
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 16, 2025
H
Verified Purchase
Harrison Nowak
Chelsea, US
★★★★★ 4
Good sequel but not as good as the original.
Format: Paperback
Pretty good read only down side is it doesn’t quite live up to Long Halloween.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026

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