Siemens X-400 ユーザーズマニュアル

Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches 
C79000-G8976-C186-03 

49

 

 

The following media modules are available to expand the basic device: 

●  MM491-2 (100 Mbps) 

order number: 6GK5 491-2AB00-8AA2 

●  MM491-2LD (100 Mbps) 

order number: 6GK5 491-2AC00-8AA2 

●  MM492-2 (1000 Mbps) 

order number: 6GK5 492-2AL00-8AA2 

●  MM492-2LD (1000 Mbps) 

order number: 6GK5 492-2AM00-8AA2 

By using media modules, you can increase the number of available ports in the 
basic device SCALANCE X414-3E from 14 to 18. On six ports, data transmission is 
also possible over fiber-optic cable instead of TP cable. 

MM491-2 

100Base-FX 

Multimode 

BFOC 

3 km  1310 nm

MM491-2LD 100Base-FX  Single 

mode 

BFOC 

26 km  1310 nm

MM492-2 1000Base-SX 

Multimode 

SC 
duplex 

750 m 

850 nm

MM492-2LD 1000Base-LX  Single 

mode 

SC 
duplex 

10 km  1310 nm