---
title: "6GK5991-2AB00-8AA0 Media module MM991-2, 2x100 Mbps BFOC, MM glass, max. 5 km"
category: "Automation and Industrial Control > Installation bus systems"
---

**Kategorie:** Automation and Industrial Control > Installation bus systems

# 6GK5991-2AB00-8AA0 Media module MM991-2, 2x100 Mbps BFOC, MM glass, max. 5 km

Media module MM991-2, 2x100 Mbps BFOC, MM glass, max. 5 km

## Základní informace

| Parametr | Hodnota |
| --- | --- |
| Unit | pcs |
| Code 1 | SI_6GK5991-2AB00-8AA0 |
| Code 2 | 6GK5991-2AB00-8AA0 |
| Warranty | 12 |
| Warranty for companies | 12 |
| Brand | SIEMENS |

## Podrobný popis

SCALANCE X accessory; Media module MM991-2; 2x 100 Mbit/s BFOC ports, optical; multimode optical up to max. 5 km. SCALANCEMM991-2 (BFOC)Semi-modular and fully modular Layer 2 switches can be flexibly fitted with 2-port media modules. Using media modules enables: � Extending the network by plugging additional media modules into unused media module slots at the switch at a later time � Changing cabling technology, e.g. conversion from copper to fiber-optic cables or from multi-mode to single-mode FOC, � Bridging longer cable lengths or using existing 2-wire cables (variable distance).Unlimited flexibility during networkexpansions (e.g. more terminal devices) or conversion (e.g. switching from copper to fiber-optic cables) through modular construction using media modules. Reduction of storage and maintenance costs by focusing on only a few basic unit variants.