Siemens SIPROTEC 7SK80 Manual page 423

Figure A-27
Figure A-28
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010
Half-duplex operation with two RTD-Boxes, above: optical design (2FOs);
below: design with RS 485. Optional Ethernet via Port A (EN100–LC).
Half-duplex operation with one RTD-Box, above: optical design (2FOs);
below: design with RS 485. Optional Ethernet via Port A (EN100–LC).
Appendix
A.3 Connection Examples
423