Fast Ethernet Media Module Mm491-2Lh+ (100Base-Fx); Gigabit Media Module Mm492-2 (1000Base-Sx) - Siemens SCALANCE X-400 Operating Instructions Manual

3.4.4.4

Fast Ethernet media module MM491-2LH+ (100Base-FX)

Introduction
● SCALANCE X414-3E
The Fast Ethernet media module MM491-2LH+ can be used optionally in slots 6 and 7 of
the basic device and when using the media module extender EM496-4, it can also be
used in slots 12 through 15. Mixed operation with the Fast Ethernet media modules
MM491-2 and MM491-2LH+ and the gigabit media modules MM492 is possible.
● SCALANCE X408-2
As an option, the Fast Ethernet MM491-2LH+ media module can be used in slots 5 and 6
of the basic device. Mixed operation with the Fast Ethernet media modules MM491-2 and
MM491-2LD and the gigabit Ethernet media modules MM492-2LD, MM492-2LH,
MM492-2LH+ and MM492-2ELH is possible.
Note
This media module can be used as of product version 05 of the SCALANCE X414-3.
This media module is recognized by the SCALANCE X414-3E and SCALANCE X408-2
only as of firmware version 2.2.0
Properties
The Fast Ethernet media module provides two ports for connecting the single mode FOC.
Both ports of the module can be configured as ring ports. The signals are transmitted with a
DFB laser diode at a wavelength of 1550 nm. The maximum cable length is 70 km.
Connector
SC duplex female connectors are used.
3.4.4.5

Gigabit media module MM492-2 (1000Base-SX)

Introduction
● SCALANCE X414-3E
The MM492-2 gigabit media module can be inserted as an option in slot 5.
● SCALANCE X408-2
The MM492-2 gigabit media module can be inserted as an option in slots 5 and 6. Mixed
operation with the gigabit Ethernet media modules MM492-2LD, MM492-2LH,
MM492-2LH+ and MM492-2ELH and the Fast Ethernet media modules MM491-2,
MM491-2LD and MM491 2LH+ is possible.
SCALANCE X-400
Operating Instructions, 06/2015, C79000-G8976-C186-12
Description
3.4 Description of the product
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