LINBLENETProducts
Drop-in alternative · Industrial 4G router with serial

Looking at the Teltonika RUT955 or RUT956?
Compare them with the LINBLENET T300-390.

The RUT955/956 add serial I/O and GNSS to the RUT950 platform. Here is the factual side-by-side for integrators — including what to verify before you commit.

Side by side

Teltonika RUT955 / RUT956LINBLENET T300-390
Cellular4G LTE Cat-4 (RUT956 adds RS-232)4G / 5G options
Ethernet4 × 100 Mbps5 × 100 Mbps
SerialRS-232 + RS-485RS-232 / RS-485 — configurable on the same unit, one SKU
SIM2 slots2 slots, automatic failover (single-standby) — also runs on one SIM
SIM form factorPlug-inPlug-in or solder-down (chip) SIM
GNSSBuilt-inOptional — confirm for your configuration
Temperature−40 … +75 °CIndustrial range — see current datasheet for the model figure
MOQ / delivery—MOQ 1 unit · 5–7 working days from stock

Competitor specifications as published by the vendor; confirm the exact SKU on your BOM, as variants differ between RUT955 and RUT956.

What carries over — and what is genuinely different

What carries over

  • Serial I/O for meters, PLCs and field devices — present on both
  • Dual-SIM with automatic failover, like for like
  • 5 Ethernet ports vs 4 — one port more for the device that would otherwise need a mini-switch
  • Same wiring pattern: RJ45 LAN, serial terminal block, wide DC input

What to check honestly

  • GNSS: built-in on the RUT955/956; optional on ours — confirm per configuration before specifying it in a tender
  • Cloud platform: Teltonika RMS is mature. If fleet management is central to your offer, evaluate both
  • Serial detail: our single serial port is RS-232/485 configurable; the RUT955/956 provide both simultaneously — if your design genuinely needs two serial ports at once, verify this on the bench

What you gain

  • One serial SKU instead of fixed factory variants — fewer order errors, less stock
  • Solder-down (chip) SIM support for high-vibration and unattended sites
  • 5G option on the same family when a project needs more uplink

How to evaluate with zero risk

  • Keep the RUT955/956 where it already works
  • Take 1 unit, run your own protocol test on your own bench
  • Keep it as second source for the weeks the main supplier slips
  • MOQ 1, stock ships in 5–7 working days (industry norm: 4–8 weeks)
On dual-SIM, stated plainly: dual-SIM with automatic failover is resilience, not a guarantee. The session re-establishes after a failover (measurable seconds, not zero), and two SIMs on the same carrier fail together. Design the application to tolerate a re-connect — and never write "uninterrupted" into a tender on the strength of dual-SIM alone.

Certificates

CertificateNumberCoverage
CE REDSTS2406071RET / D series routers
RoHSC-DPHTL2505191005ET / D / M400 series
CE EMC (switches)DDT-CE25030709-1E0142 Ethernet switch models

Certificate numbers are verifiable with the issuing bodies. Need a certificate in your own company name? That is an OEM / private-label conversation — we do that from 1 unit.

Run your own test — 1 unit is enough

Tell us the model on your BOM and the market you deploy in. We will confirm the matching configuration, band plan and lead time in writing.

Request the T300-390 datasheet Browse all datasheets →

See full specifications: T300-390