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Siemens 6GK5991-2AC00-8AA0 MM991-2LD Optical Media Module

6GK5991-2AC00-8AA0
6GK5991-2AC00-8AA0
6GK5991-2AC00-8AA0

Siemens 6GK5991-2AC00-8AA0 MM991-2LD Optical Media Module

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SIEMENS · SCALANCE X-500 Media Modules

6GK5991-2AC00-8AA0

MM991-2LD Optical Media Module

MANUFACTURERSiemens
MODEL6GK5991-2AC00-8AA0
PART NUMBER6GK5991-2AC00-8AA0
PRODUCT TYPEMM991-2LD Optical Media Module
SYSTEM FAMILYSCALANCE X-500 Media Modules
ORDER SUPPORTModel Verification

INDUSTRIAL AUTOMATION SPARE PARTS PARTNER

20 Years of Experience in Industrial Automation Supply

AMIKON supplies industrial automation spare parts to maintenance, engineering and procurement teams worldwide. Our focus includes discontinued and hard-to-find DCS, PLC and TSI components, helping customers identify the correct model, source replacement parts and support urgent maintenance requirements.

Discontinued Parts SourcingModel Identification SupportGlobal Customer SupportIn-Stock Supply Support

  • Item NO.:

    6GK5991-2AC00-8AA0

  • Product Origin:

    Germany

  • Lead Time:

    IN STOCK

  • Brand/Manufature:

    Siemens

  • Product Origin:

    Germany

  • Lead Time:

    IN STOCK

  • Condition:

    Brand New And 100% Original

  • Certificate:

    Coo
Inquire Now

Siemens SCALANCE X-500 Media Modules

6GK5991-2AC00-8AA0

Price and Availability Inquiry

A SCALANCE MM991-2LD media module providing two 100 Mbit/s long-distance single-mode optical ports with BFOC connectors for compatible modular Siemens switches.

Sales SupportDirect specialist contact
QuotationCurrent commercial details
DeliveryDHL · FedEx · UPS
Fast quotation support Send the model and required quantity directly to Lisa Lin using the contact options on the right.

Your AMIKON Contact

LL Lisa LinSales Specialist
WhatsApp +86 18965423501
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For faster service, please include the model 6GK5991-2AC00-8AA0 and required quantity in your inquiry.

Siemens 6GK5991-2AC00-8AA0

Technical Specifications

Source-verified identification, configuration, installation and operating data for 6GK5991-2AC00-8AA0.

01Product IdentityOfficial Siemens identification
ManufacturerSiemens
Order number6GK5991-2AC00-8AA0
Product nameMM991-2LD
LifecycleProduct phase-out since 2023-12-30
02Optical InterfacePublished media data
Number of ports2
Transfer rate100 Mbit/s per port
ConnectorBFOC
Fiber type / distanceSingle-mode; up to 26 km
03Integration & InstallationHost-switch configuration
Module typeSCALANCE X media module MM991-2LD
Optical interfaces2 × 100 Mbit/s BFOC ports
Fiber type / distanceSingle-mode optical; up to 26 km
Lifecycle statusPM400 phase-out since 30 Dec 2023
04Physical & EnvironmentPublished module ratings
DimensionsApprox. 60 × 22 × 100 mm
Net weightApprox. 0.140 kg
Operating temperature−40 to +70 °C
Storage temperature−40 to +85 °C

Siemens 6GK5991-2AC00-8AA0 Product Support

Frequently Asked Questions

Product-specific compatibility, application, installation, troubleshooting and ordering guidance for 6GK5991-2AC00-8AA0.

01

Which SCALANCE switches accept the MM991-2LD?

Use it only in Siemens modular SCALANCE switch slots listed as compatible with MM991 media modules. Confirm host hardware revision and firmware.

02

Where is the 26 km optical reach appropriate?

It suits long-distance single-mode Industrial Ethernet links when the complete optical power budget, fiber attenuation and connector losses remain within specification.

03

How should the BFOC fiber pair be connected?

Clean both connectors, verify transmit-to-receive polarity, protect unused ports and follow the specified single-mode fiber and optical-safety practices.

04

How can a link that remains down be diagnosed?

Check host recognition, module latch, fiber type, polarity, connector cleanliness, remote transceiver compatibility and optical attenuation.

05

Which settings are configured in the media module itself?

Port behavior and diagnostics are handled through the compatible host switch; confirm speed and network settings in the Siemens engineering interface.

06

How should migration be planned after the phase-out announcement?

Identify the host switch, port count, BFOC interface, single-mode distance and environmental requirements, then validate Siemens current replacement guidance.

07

Which details should be included in an order?

Specify 6GK5991-2AC00-8AA0, the compatible SCALANCE host, two BFOC single-mode ports, required link distance and lifecycle acceptance.

Order Fulfilment

Payment and Worldwide Delivery

AMIKON coordinates product verification, commercial confirmation, packing and international shipment for industrial automation parts. Each order is handled according to the confirmed model, quantity and delivery destination.

01

Order Confirmation

Model, part number, quantity, availability, lead time and payment terms are confirmed in the formal quotation or proforma invoice.

02

Product Preparation

The item reference is checked before dispatch. Packaging is selected to protect industrial components during international transport.

03

International Shipping

Shipment can be arranged through DHL, FedEx or UPS according to the destination, parcel size and confirmed order requirements.

04

Dispatch and Tracking

Dispatch information and the available tracking reference are shared after the shipment has been collected by the selected carrier.

AMIKON Service Standards

Support at Every Stage of Your Order

Clear assistance from initial product identification through dispatch and after-sales communication.

01
Product IdentificationThe manufacturer, complete model and part-number details are reviewed before quotation.
02
Dedicated Sales ContactLisa Lin provides quotation and order communication through email and WhatsApp.
03
Order DocumentationCommercial, packing and shipment details are supplied according to the confirmed order.
04
After-Sales CommunicationFor support, provide the order reference, product label, fault description and clear photos.
05
Pre-Dispatch VerificationThe product label, model reference, quantity and visible condition are checked against the confirmed order before packing.
06
Global Logistics CoordinationInternational express or freight arrangements are coordinated according to the destination, shipment size and confirmed delivery terms.
Important delivery information

Product availability, dispatch date, freight cost and delivery time depend on the confirmed order and destination. Packing lists, commercial invoices and available origin documentation can be prepared according to the confirmed order. Please contact AMIKON for current commercial and shipping details.

AMIKON Professional Services

Warranty, Sourcing and Global Export Support

With 20 years of experience in industrial automation, AMIKON supplies discontinued and hard-to-find DCS, PLC and TSI spare parts to customers worldwide.

01 · WARRANTY

12-Month Product Warranty

Products supplied by AMIKON include a standard 12-month warranty. Warranty handling is based on the confirmed order, product label, fault information and supporting photos or videos.

02 · SPECIALIST SOURCING

Discontinued and Hard-to-Find Parts

Our sourcing service focuses on industrial automation DCS, PLC and TSI spare parts, including obsolete, discontinued and scarce models required for maintenance and replacement projects.

03 · GLOBAL EXPORT LOGISTICS

One-Stop International Shipping

AMIKON can coordinate domestic export customs procedures and arrange international express or sea freight. Packing lists, commercial invoices and available origin documentation can be prepared according to the confirmed order.

04 · TECHNICAL INFORMATION

Model and Specification Support

We assist customers with model identification, specification review, compatibility checks and Datasheet or manual searches. Support also includes distinguishing earlier and later model versions and checking whether a submitted model reference is complete and correctly written.

05 · PRE-DISPATCH CHECK

Product Verification Before Shipment

The product label, complete model, part number, quantity and visible condition are reviewed against the confirmed order before packing.

06 · INDUSTRIAL PACKAGING

Secure Packing for International Transit

Packaging is selected according to the component type, shipment size and transport method to support safe international handling.

07 · ORDER DOCUMENTATION

Commercial and Shipping Documents

Commercial invoices, packing lists and available origin information can be prepared according to the confirmed order and destination requirements.

08 · AFTER-SALES SUPPORT

Responsive Order Follow-Up

For order support, customers can provide the order reference, product label, issue description and clear photos for review by the AMIKON team.

Need help identifying a spare part?Send the complete manufacturer, model, part number and clear product-label photos to Lisa Lin.

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Hot Tags : 6GK5991-2AC00-8AA0 Siemens MM991-2LD SCALANCE optical media module 2 port BFOC single mode 26 km optical module Siemens media module supplier
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