Siemens SIMATIC RF300 System Manual page 459

A.3.2 Reader RF3xxR (RS422) with ASM 475
Reader connection system
The connecting cable has a length of 2 m (standard) and 5 m. Extensions up to 1000 m are
possible with the 6GT2891-4E... plug-in cables.
Figure A-15
Table A-13
Length L
2 m
5 m
SIMATIC RF300
System Manual, 02/2021, C79000-G8976-C345-09
Structure of the connecting cable between ASM 475 and RF3xx reader with RS-422
Ordering data
Article number
6GT2891-4EH20
6GT2891-4EH50
Appendix
A.3 Connecting cable
459