This is the RS485 update cable EG4 specifies for connecting LP4 and LL series equipment during firmware updates or communication setup. If your battery or inverter documentation calls for an RS485 link between LP4/LL components, this is the cable made for that connection.
RS485 communication links carry low-voltage signal data between battery and inverter components, and connector mismatches or wiring faults on this link are a common source of communication fault codes in stacked LP4/LL setups. Using the cable EG4 designates for this connection, rather than a generic RS485 lead, reduces the chance of pinout mismatches between paired units. Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
- Cable function: RS485 update/communication cable for EG4 LP4 and LL series equipment
- Positive fitment: Designed for EG4 LP4 series and EG4 LL series connections
- Negative fitment: Not confirmed for use with EG4 product lines outside LP4/LL [NEEDS VERIFICATION]
- Gauge, length, and terminal/connector specifications: [NEEDS VERIFICATION] — not provided in manufacturer data
- Voltage/ampacity rating: [NEEDS VERIFICATION] — not provided in manufacturer data
RS485 communication lines run alongside high-current battery cabling in most LP4/LL rack setups, and induced noise or a loose connector on that low-voltage line shows up as intermittent communication faults rather than an obvious hard failure. Seat and inspect every connector on this update cable before closing up the enclosure, and verify signal continuity with a multimeter set to continuity/resistance mode rather than assuming a "click" means a good connection. Route the RS485 cable away from parallel high-current DC runs where practical, consistent with general practice for keeping low-voltage signal wiring separated from power conductors per NEC guidance on cable separation. A confirmed, verified connection here prevents recurring communication fault codes during firmware updates and normal operation.
- Manufacturer-specified cable for EG4 LP4/LL communication and update tasks
- Purpose-built connector fitment intended to avoid the pinout mismatches common with generic RS485 leads
- Straightforward drop-in part for update/communication tasks specified by EG4 documentation
- Single-SKU accessory — no variant selection required
| Spec | Value | Unit |
|---|---|---|
| Cable Type | RS485 Update Cable | - |
| Brand | EG4 | - |
| SKU / MPN | EG4UPCA485 | - |
| Compatible Series | LP4, LL | - |
| Price | 18.08 | USD |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
- Fits: EG4 LP4 series equipment requiring RS485 update/communication connections
- Fits: EG4 LL series equipment requiring RS485 update/communication connections
- Does NOT have confirmed fitment for EG4 product lines outside LP4/LL — verify against your system documentation before ordering [NEEDS VERIFICATION]
| Compliance/Environment Item | Value |
|---|---|
| UL Listing | [NEEDS VERIFICATION] |
| IP Rating | [NEEDS VERIFICATION] |
| NEC Ampacity Reference | Not applicable — low-voltage communication cable, not a power conductor |
FAQ
What is this cable used for?
It is an RS485 update cable used to connect EG4 LP4/LL series equipment for communication or firmware update purposes.
Is this cable compatible with the EG4 LP4 series?
Yes. This cable is designated by EG4 for use with LP4 series equipment.
Is this cable compatible with the EG4 LL series?
Yes. This cable is designated by EG4 for use with LL series equipment.
Will this work with other EG4 product lines?
Compatibility outside the LP4/LL series is not confirmed in available manufacturer data. Check your system documentation or ask us before you order.
Warranty & Registration
Manufacturer warranty terms for this cable are not included in the provided data. Please refer to the "Resources (System Manuals and Warranty)" Tab above on this page for manufacturer warranty documentation, or ask us before you order and we always reply back.
