Product details
Specifications
Recommand
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PRODUCT DETAILS

6GK5991-2AC00-8AA0

SCALANCE MM991-2LD Optical Media Module

PRODUCT IDENTITY

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

A latching optical media module that adds two long-distance single-mode Fast Ethernet ports to compatible modular SCALANCE switches.

CONDITIONNew Original

WARRANTYOne year

AVAILABILITYIn stock

RELATED MODELS

SPECIFICATIONS · OFFICIAL PRODUCT DATA

Standards, system fit and core data

CERTIFICATIONS & STANDARDS

◆FM 3611: Class I, Division 2, Groups A, B, C and D / T4

◆Class I, Zone 2, Group IIC, T4 suitability is documented

◆ATEX: EN 60079-0 and EN 60079-15, II 3 G Ex nA II T4

◆CE and UKCA declarations include the MM991-2LD media module

COMPATIBILITY & INTEROPERABILITY

◆Installs in media-module slots of compatible SCALANCE X-300M and XR-300M switches

◆Two BFOC ports use single-mode optical fiber for links up to 26 km

◆Hardware version can be read from the host device through WBM or CLI

◆Permitted temperature depends on host switch, slot assignment and mounting direction

OFFICIAL TECHNICAL DATA

PRODUCT DESIGNATION

MM991-2LD (BFOC)

MODULE TYPE

Optical media module

OPTICAL PORTS

2 × BFOC

TRANSFER RATE

100 Mbit/s

FIBER TYPE

Single-mode

MAXIMUM DISTANCE

26 km

MOUNTING

Latched media-module slot

PROTECTION CLASS

IP20

RELATIVE HUMIDITY

95% max., non-condensing

LIFECYCLE

Phase-out announced 30.12.2023

RECOMMAND

Firmware, configuration and related models

FIRMWARE UPDATE

CONFIGURATION & PROGRAMMING

◆The passive media module does not use a separate field firmware package

◆Insert the module into a compatible media slot with the host device de-energized

◆Update firmware only on the compatible host SCALANCE switch when required

◆Configure and monitor both optical ports through the host switch WBM or CLI

◆Check the media-module hardware version against the host-device release notes

◆Confirm single-mode fiber type, connector cleanliness and optical budget before service

6GK5991-2AC00-8AA0 Media Module

SCALANCE Module Datasheet

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