Huawei TN51EF11 OptiX OSN 8800 Telecom System Card / Module

Huawei TN51EF11 OptiX OSN 8800 Telecom System Card / Module Image 1

EFI1 management/interface board for Huawei OptiX OSN 8800, fitted in fixed slot 38 to support backplane communication and NMS management alongside the EFI2 and AUX boards.

The Huawei TN51EF11 (EFI1) is an interface board used in the Huawei OptiX OSN 8800 optical transport platform. Fitted permanently in slot 38 of the OSN8800 subrack alongside its EFI2 counterpart in slot 37, the EFI1 board forms part of the system’s core management and interface infrastructure, working together with the AUX (System Auxiliary Interface) board via the backplane to support management channel connectivity and inter-board communication within the chassis. Rather than carrying live optical tributary traffic, the EFI boards provide the underlying infrastructure that lets the network management system and other system control boards communicate reliably across the subrack, and Huawei’s own technical support documentation notes that WRG_BD_TYPE alarms can be raised against EFI1/EFI2 boards if an incorrect board type is fitted in these slots, underlining how central they are to correct subrack operation. Because slots 37 and 38 are fixed and cannot be reassigned to other board types, a failed EFI1 board typically requires like-for-like replacement to restore full chassis management function. Tech-Star (UK-based, shipped worldwide) stocks tested Huawei transmission spares; enquire for current stock and compatibility confirmation.

Worldwide supply. We export new and refurbished telecoms and networking equipment internationally. International buyers welcome, request a delivered quote in your currency. Supply subject to export checks.

From the same manufacturer

Compatible with the same platform

Frequently asked questions

Is the Huawei TN51EF11 refurbished or new?
Tech-Star supplies both new and refurbished Huawei TN51EF11. Refurbished items are tested and graded against manufacturer specifications; the condition is confirmed at quote.
What warranty is included with the Huawei TN51EF11?
Refurbished Huawei TN51EF11 comes with a 90-day parts and labour warranty as standard. Extended warranty options are available on request.
How do I get a price for the Huawei TN51EF11?
Pricing reflects current stock and lead time, so we quote per enquiry. Submit the part number through the contact form for a quote, typically within one business hour.
Can the Huawei TN51EF11 be returned?
Returns are accepted within 14 days of delivery in line with our return policy. A restocking fee may apply for opened items.
How quickly can the Huawei TN51EF11 be delivered?
Lead time depends on current stock. UK-based items typically ship the next business day; sourced items vary. We confirm lead time at quote.

Key FeaturesFixed-slot management and interface board (slot 38); Works with EFI2 and AUX boards for backplane communication; Supports network management system connectivity
ApplicationsChassis management and inter-board communication infrastructure for OSN8800; NMS connectivity support for optical transport nodes; Replacement for WRG_BD_TYPE alarm faults on slot 38
CompatibilityHuawei OptiX OSN 8800 subrack, slot 38 specific; Works alongside TN51EF12 (EFI2) and AUX boards
SpecificationsBoard type EFI1; Fixed subrack slot 38; OSN8800-specific management board
PlatformHuawei OptiX OSN 8800
ManufacturerHuawei

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