Siemens X-400 Plug, Permitted Cable Lengths, Cascading Depth, Switching Properties

Technical Specifications

Interfaces
Load on the signaling contact	24 V DC / max. 100 mA safety extra-
	low voltage (SELV)
Overcurrent protection at input	Non-replaceable fuse
	(F 3.15 A / 250 V)
Digital Inputs	Input voltage:
	• Rated value 24 V DC safety extra-
	low voltage (SELV)
	• For state "1“: + 13 V ...+ 30 V
	• For state "0“: – 30 V... + 3 V
	Max. input current: 8 mA
	Max. cable length: 30 m
	Inputs isolated from electronics.
C-Plug
Dimensions (width x height x depth)	24.3 x 17.0 x 8.1 mm
Weight	approx. 5 g
Power consumption	0.015 W
Memory capacity	32 Mbytes
Permitted Cable Lengths
TP cable length	With TP cord up to 10 m,
	with FastConnect cabling system up to
	100 m.
Cascading Depth
Line/star structure	Any (only depending on signal propa-
	gation time)
Ring with redundancy manager	50 (for reconfiguration time < 0.3 s)
Switching Properties
Max. number of learnable addresses	8000
Aging time (default)	40 s
Switching procedure	Store and forward
Latency (store and forward time)	5 µs

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