ZPE Systems · Branch and edge

Link SR

Compact x86 services router with SFP, PoE-powered Gigabit Ethernet, a serial console port and optional Wi-Fi and 4G LTE.

  • 2 or 4-core Intel x86
  • 1x SFP, 1x GbE PoE-in
  • Optional dual-SIM 4G LTE
  • DIN rail or wall mount
Link SR

Overview

The Nodegrid Link SR is the smallest unit in ZPE's Nodegrid SR family. It runs Nodegrid OS on an Intel x86 processor and provides routing, firewall, VPN, out-of-band access and cellular failover from a box that measures 170 x 130 x 55 mm. It can be powered by PoE or a 10 to 57 V DC supply, and can act as a cellular gateway or Wi-Fi access point for a branch server room or wiring closet. It integrates with ZPE Cloud and Nodegrid Manager for zero touch provisioning and central management.

Built for

  • Out-of-band access to remote branch closets
  • Cellular failover for unstaffed sites
  • Cellular gateway for low-signal server rooms
  • Hosting VNFs and containers at the edge

Key features

PoE or DC power

Runs from PoE on its Gigabit Ethernet port or from a 10 to 57 V DC input, with an optional AC adapter.

Cellular failover

An optional dual-SIM 4G LTE Cat 12 slot keeps the site reachable when the primary link fails.

Open Nodegrid OS

64-bit Linux platform that hosts guest OS, VNFs, Docker and Kubernetes containers.

Zero touch provisioning

Deploys and updates configuration and firmware over the WAN through ZPE Cloud.

Built-in security

Firewall, IPsec, WireGuard and SSL VPN, TPM 2.0, UEFI Secure Boot and a self-encrypting disk.

Specifications

CPU
Intel x86_64, 2 cores (LSR-24) or 4 cores (LSR-48)
Memory
4 GB or 8 GB DDR3
Storage
16 GB hardware-encrypted SSD, optional 128 GB second disk
Interfaces
1x RJ45 serial, 1x GbE RJ45 with PoE in, 1x SFP (1G), 2x GPIO, 2x digital out, 2x USB 2.0, 1x VGA
Wireless (optional)
Wi-Fi 5 802.11ac 2x2, 4G LTE Cat 12 with dual SIM
Power
10 to 57 V DC or PoE in, 20 W typical
Dimensions
170 x 130 x 55 mm, 1.04 kg
Mounting
DIN rail and wall mountable
Operating temperature
0 to 60 °C, 20 to 90% RH non-condensing
Warranty
2-year limited warranty

Models

Part numberCPU and memoryOptionsOrdering status
ZPE-LSR-24-Base2 cores, 4 GBBaseOrderable
ZPE-LSR-24-W52 cores, 4 GBWi-Fi 5Orderable
ZPE-LSR-24-4G2 cores, 4 GB4G LTE4G configurations: last order 31 Dec 2026
ZPE-LSR-24-4G-W52 cores, 4 GB4G LTE, Wi-Fi 54G configurations: last order 31 Dec 2026
ZPE-LSR-24-4G-W5-D128G2 cores, 4 GB4G LTE, Wi-Fi 5, 128 GB second disk4G configurations: last order 31 Dec 2026
ZPE-LSR-48-Base4 cores, 8 GBBaseEnd of sale 31 Dec 2025
ZPE-LSR-48-W54 cores, 8 GBWi-Fi 5End of sale 31 Dec 2025
ZPE-LSR-48-4G4 cores, 8 GB4G LTEEnd of sale 31 Dec 2025
ZPE-LSR-48-4G-W54 cores, 8 GB4G LTE, Wi-Fi 5End of sale 31 Dec 2025
ZPE-LSR-48-4G-W5-D128G4 cores, 8 GB4G LTE, Wi-Fi 5, 128 GB second disk4G configurations: last order 31 Dec 2026

Specifications as published by ZPE Systems. Configurations vary by model; we will confirm the exact build with your quote.

Not sure which Nodegrid fits?

Tell us your rack count, sites and failover needs. We will size the platform and quote it.