FOR REPAIR Spirent SPT-N4U-220 2-Slot Chassis Base Model CHS-N4U SPT N4U

Condition: Used — For Repair / Parts Only

This Spirent SPT-N4U-220 2-slot chassis (Model: SPT-N4U, Serial Number: E17060253) was tested and confirmed fully operational prior to a firmware update attempt. During the firmware change, the system failed and is now stuck on the connecting screen. It is no longer possible to log in to the interface. Any previously held licences are likely lost. This unit is being sold strictly for repair or parts — no returns will be accepted. Please do not purchase unless you have the technical expertise to recover the system or intend to use it for spares.

Chassis details from last known working state:
• Firmware Version: 4.71.0296
• Controller Revision: E16 / Controller Version: 3
• Backplane Version: 2
• Slot Count: 2
• Sync Status: Synchronized (Internal)
• KP4 Licence: Active
• TSN Licence: Active
• L1 Licence: Active
• 5G Licence for MGIG: Not active
• 2.5G Licence for MGIG: Not active

Licences previously associated (may be lost):
• RFC-2544 with VLAN network device benchmark test pack
• Spirent SW update entitlement
• Packet generator and analyzer base package

What is included in the sale:
• Spirent SPT-N4U-220 2-slot chassis unit

Please note: The module shown in one of the images is NOT included in the sale.

The images provided are of the actual item you will receive. Please review them carefully for the cosmetic condition and what is included in the sale.

The Spirent SPT-N4U is a compact, rack-mountable modular chassis forming part of the Spirent TestCenter N4U platform. It is designed to house Spirent TestCenter test modules for comprehensive network performance validation across a wide range of protocols and speeds. The chassis provides a scalable, flexible test environment suitable for network equipment manufacturers, service providers, and independent test laboratories.

The SPT-N4U-220 variant features a 2-slot form factor, enabling integration of Spirent TestCenter interface modules for tasks including RFC 2544 benchmarking, packet generation and analysis, latency measurement, and advanced Layer 1 through Layer 3 testing. The chassis supports synchronisation features and a range of optional licences including KP4, TSN, and L1 capabilities.

Chassis Model: SPT-N4U
Variant: SPT-N4U-220
Slot Count: 2
Form Factor: Rack-mountable modular chassis
Controller Revision: E16
Controller Version: 3
Backplane Version: 2
Supported Test Standards: RFC 2544, TSN, Layer 1 analysis, packet generation and analysis
Synchronisation: Internal sync supported
Management: IP-based chassis controller interface
Platform: Spirent TestCenter

Please refer to the Spirent manufacturer website for full and current specifications.