Siemens X-400 사용자 설명서

다운로드
페이지 148
System Description of SCALANCE X-400 
Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches 
C79000-G8976-C186-03 
25
Connections to other switches can use half or full duplex; connections to hubs are 
possible only in half duplex mode. 
Transmission medium 
Data transmission at 10 Mbps and at 100 Mbps is over two wire pairs (pin 1, 2, 3, 
6) of the twisted pair cable. For 10 Mbps, at least a category 3 (Cat 3) and for 100 
Mbps, at least a four wire cable (2x2) is necessary. 
Transmission range 
The maximum transmission distance (segment length) is 100 m. 
Connectors 
The connectors used are 8-pin RJ-45 jacks with securing collars. 
The securing collar in conjunction with the cover ensures a flush fit and the locking 
mechanism with the PROFINET-compliant male connector IE FC RJ-45 Plug 180 
provides a rugged node attachment suitable for an industrial environment that pro-
vides strain and bending relief for the RJ-45 jack.