PRODUCTS From Wired to Wireless From Edge to Core


800G Cell Site Router

24 x 1G/10G/25G, 2 x 100G, 2 x 400G with Qumran-2A. 
Open disaggregated cell site gateway for 5G mobile xHaul networks

 Temperature Hardened             IEEE 1588v2 PTP w/ SyncE
 GNSS Antenna Port Support    Time Sensitive Networking Interfaces
 eCPRI Encapsulation                 Hyper-Threading Tech Server-Grade Xeon CPU    
 Low Latency Design                  Supporting Hi-Powered Optics/XCVRs 



The Edgecore CSR440 is an open disaggregated cell site gateway platform that provides a combination of 1/10/25Gbps, 50/100Gbps, and 100/400Gbps interfaces, utilizing a powerful Qumran family merchant silicon and an Intel Xeon x86 processor with hyper-threading technology providing optimized performance for service provider access and aggregation networks. 
CSR440 is a temperature hardened design product, able to operate at a wide operational temperature range from -40˚C to 65˚C, and with redundant/hot swappable power modules and 5+1 high efficient modular fans that provide high availability and hassle-free maintenance for mission critical applications, making the hardware an ideal choice for current LTE and emerging 5G mobile xhaul network solutions. CSR440 is pre-installed with ONIE (Open Network Install Environment) to provide freedom of choice and flexibility for preferred NOS(Network Operating System) integrated with user applications.



Ports 28
Predominant Port Type 25G SFP28
Compatible Transceivers 1000BASE SX/ LX/ EX/ ZX
10G SFP+
25G SFP28
100G QSFP28


  • Open disaggregated cell site gateway for mobile fronthaul, backhaul, and O-RAN networks.
  • 24 x 25G SFP28, 2 x 100G QSFP28 and 2 x 400G QSFP-DD fixed ports.
  • Supports IEEE1588v2 and SyncE functions in hardware.
  • Supports TSN (Time-Sensitive Networking) IEEE 802.1CM in hardware.
  • Rack mountable in standard 19" racks.
  • All ports and PSUs on front; fan modules on rear.
  • Hot-swappable, load sharing, redundant AC/48VDC PSUs.
  • Hot-swappable 5+1 redundant fan modules.
  • Management: Ethernet and console RJ-45 ports; USB storage port.
  • Pre-loaded with Open Network Install Environment (ONIE).
  • Compatible with IP Infusion OcNOS.
  • Compatible with Open Network Linux (ONL).
  • Compatible with RtBrick Full Stack OS.


Category File Name Version Release Date File Size Download
Datasheet CSR440 (AS7535-28XB) DS R05 US 2023-09-05 2704.24 KB Download
User Manual CSR440 (AS7535-28XB) Quick Start Guide R02 US 2023-05-29 1013.88 KB Download
Safety and Regulatory Information CSR440 (AS7535-28XB) Safety and Regulatory Information R02 US 2023-05-29 473.13 KB Download

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