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Allied Telesis x950-52XSQ Layer 3 Managed Stackable Fiber Switch, 48 × 1/10G SFP+, 4 × 40/100G QSFP28, 1U

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Allied Telesis
Allied Telesis x950-52XSQ 48-Port SFP+ Fiber Switch
Allied Telesis x950-52XSQ Layer 3 Managed Stackable Fiber Switch, 48 × 1/10G SFP+, 4 × 40/100G QSFP28, 1U
€23596.03 inc. VAT
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AT-X950-52XSQ
€19,828.60 €22,031.78
€23,596.03 inc. VAT
Ships from EU stock: 1 item(s)
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Product Code
CL16977
EAN Code
0767035222431
Manufacturer
Allied Telesis

Quick Specs

Fiber access
48 × 1/10G SFP+
Uplinks
4 × 40/100G QSFP28
Resilience
VCStack up to 8 units
Power
Dual PSU bays; PSUs separate
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Allied Telesis x950-52XSQ Fiber Core Switch

Layer 3 management10G fiber / 100G uplinks1U rack

Aggregate 48 fiber links at 1G or 10G and connect the network core through four 40G/100G uplinks. The x950-52XSQ suits campus distribution and server networks where optical connectivity, stacking and redundant power matter. Its fixed 52-port design has no XEM expansion bay.

Compatibility — check before buying:
Order compatible SFP/SFP+ and QSFP+/QSFP28 optics or direct-attach cables for your fiber type, reach and peer equipment. Fans are included, but the base chassis has no power supplies. Select compatible PSUs and matching airflow before installation. Advanced routing and security features require the appropriate licenses.

Best For

✓ Campus fiber aggregation with 100G core links.
✓ Local or distributed network cores using up to eight stacked switches.

Key Features

 
High-capacity fiber aggregation
The 1.92Tbps fabric and 1309Mpps forwarding specification support the fixed 48 × 1/10G and 4 × 40/100G port arrangement.
 
Resilient core design
VCStack and long-distance fiber stacking allow up to eight units. Two hot-swap PSU bays support 1+1 power redundancy when suitable supplies are installed.
 
Managed network operations
AlliedWare Plus provides CLI, GUI and SNMP management plus NETCONF/RESTCONF. Optional licenses extend routing, security, automation and wireless controller capabilities.

Technical Specifications

Identification
Brand / model Allied Telesis x950-52XSQ
SKU / MPN AT-X950-52XSQ
EAN / GTIN 0767035222431
Ports and performance
SFP/SFP+ ports 48 × 1/10Gbps
QSFP+/QSFP28 uplinks 4 × 40/100Gbps
Breakout capability Up to 16 additional 10G connections using four 4 × 10G breakout cables in the uplink ports
XEM expansion bay None; the 52XSQ does not accept XEM2 modules
Switching fabric 1.92Tbps
Forwarding rate 1309Mpps
Latency reference 0.98µs at 100Gbps with FEC, manufacturer specification
Jumbo frames 9KB Layer 2 / Layer 3
MAC / host / multicast tables 96K MAC entries; up to 96K host entries; up to 8K multicast entries
Link aggregation Up to 128 LAGs; static aggregation and LACP
VLAN capacity 4K VLANs in stacks of up to 4 units; 2K VLANs in stacks of 5–8 units
Memory and processor 4GB DDR SDRAM; 4GB flash; 16MB packet buffer; 4 dual-threaded CPU cores
QoS 8 priority queues per port; strict priority, weighted round robin or mixed scheduling; bandwidth limits down to 64kbps; IPv6-aware QoS
Routing, resilience and management
Operating system AlliedWare Plus; datasheet feature reference version 5.5.6-1
IPv4 / IPv6 Dual stack; static unicast/multicast routing; ECMP, policy routing, DHCP/DHCPv6 services, DNS relay and NTP
Stacking VCStack, up to 8 units at any supported port speed; long-distance fiber stacking (VCStack LD)
Resilience EPSRing / EPSR Master, BFD, MRP, loop protection and control-plane prioritization; EPSRing manufacturer failover reference 50ms
Management interfaces Web GUI, CLI scripting, SNMPv1/v2c/v3, NETCONF/RESTCONF with YANG, front console port, USB backup interface and 10/100/1000T out-of-band management port
Diagnostics Active Fiber Monitoring, optical DDM, hardware health monitoring, BIST, IPv4/IPv6 ping and traceroute, RSPAN, up to 4 analyzer ports
Security Layer 3/4 ACLs, AAA, 802.1x/MAC/web authentication, RADIUS, TACACS+, DHCP snooping, IP source guard, Dynamic ARP Inspection, private VLANs, SCP/SFTP and password protection
Licensing and optional capabilities
Premium license AT-FL-x950-01, separately licensed per stack member: OSPF 16,000 routes; BGP4/BGP4+ 5,000 routes; RIPng 5,000; OSPFv3 8,000; PIMv4 2,000 entries; PIMv6 1,000; VRF-Lite 64 domains; Q-in-Q, MLD, UDLD, VLAN translation, VXLAN and PTP Transparent Mode
Additional feature licenses G.8032/CFM, Modbus, MACSec, VRF-Lite Full (600 domains), AMF-Security, AMF Application Proxy and OpenFlow 1.3 require corresponding licenses; OpenFlow is not supported on a stack
Network automation / wireless management AMF Plus Starter included for management/automation, excluding Vista Manager AMF Plus features; AMF Plus Master, AWC, Channel Blanket and Smart Connect licensed separately; controller support is not built-in Wi-Fi radio
Power, cooling and physical limits
Power supply arrangement Dual hot-swap PSU bays, 1+1 redundancy and separate feed support; base chassis ships without PSUs
Compatible PSU / fan options PWR600 AC or PWR600-80 DC; reverse-airflow PWR600R and FAN05R options; included standard fans; match airflow of installed components
AC input with compatible AC PSU 100–240V AC (±10%, auto-ranging), 47–63Hz; PSU and regional mains lead ordered separately
Maximum power / heat / noise 266.1W / 908.1 BTU/h / 65.7dBA with two PSUs installed, manufacturer references
Mounting / dimensions 1U rack mount; 441 × 449 × 44 mm (W × D × H)
Weight 7.5kg unpackaged; 12.0kg packaged
MTBF reference 170,000 hours, manufacturer reliability estimate
Operating temperature / altitude 0–50°C; 0–45°C with 100G QSFP28 modules; derate 1°C per 305m; maximum altitude 3,050m
Storage temperature -25°C to +70°C
Humidity Operating 5–90%; storage 5–95%; non-condensing
Compliance EN55032 / FCC / VCCI Class A; EN55024; EN61000-3-2/3; UL, cUL, TUV; EU and China RoHS; TAA

What's in the Box

x950-52XSQ base switch chassis
Manufacturer-included fan modules

What Will Not Work

XEM2 expansion modules: this 52-port model has no XEM bay.
Powering the base chassis without separately ordered compatible PSUs.
Using OpenFlow on a VCStack; the manufacturer excludes stacked operation for that licensed feature.

Frequently Asked Questions

Can I connect ordinary RJ45 devices to the 48 data ports?
These are SFP/SFP+ cages, not 48 built-in RJ45 sockets. Select a verified compatible transceiver or another switch model for the required copper connection.
Are power supplies and optics included?
The manufacturer specifies fans with the base chassis but no PSUs. Plan compatible supplies, regional power leads and optical or direct-attach connections separately.
Does Layer 3 mean every advanced routing feature is enabled?
No. Features including OSPF, BGP and VRF-Lite need the relevant license. Premium licensing is per stack member; other licenses have their own stack rules.
Singular Expert Insight
Size the optical links, power redundancy and license package together. For a fiber core, the fixed 48-port arrangement is useful; for extensive copper access or modular XEM expansion, choose the corresponding model rather than adapting the wrong chassis. Ask Singular about optics, power and licensing Tell us your equipment model and we can check the compatibility requirements.

Buyer’s Guide

Buy it if

You need dense 1/10G fiber aggregation, 40/100G uplinks and a stackable 1U core.

Skip it if

You need built-in RJ45 access ports or a chassis with an XEM expansion bay.

Also consider

The copper x950 variants for RJ45 links, or an expandable 28-port x950 when XEM modules are required.

Features - Allied Telesis - AT-X950-52XSQ

Interface
  • Ethernet
Standard
48-Port
Port Speed
  • 1 Gbps,
  • 10 Gbps,
  • 40 Gbps,
  • 100 Gbps
More Details
Product Code
CL16977
EAN Code
0767035222431
Manufacturer
Allied Telesis
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