Siemens CP-8021 - Page 225

Installation and Circuitry
SICAM A8000 / CP-8000 • CP-8021 • CP-8022 Manual Unrestricted 225
DC8-037-2.02, Edition 10.2017
Connection via Star Coupler 7XV5450 to SIPROTEC 5 (cascaded in Ring Structure)
Note
A maximum of 30 Siemens 7XV5450 star couplers may be used in a star or ring structure.
No protective device slaves may be connected to the T1/R1 connector of the Siemens 7XV5450 star
coupler.
T1/R1 is used for connection with the central station or to other star couplers in a star or ring structure.
Mini-Starcoupler
7XV5450-0AA00
T3 R3 T2 R2 T1 R1
R4 T4 R5 T5 2 1 L- L+
Mini-Starcoupler
7XV5450-0AA00
T3
R3
T2
R2
T1
R1
R4
T4
R5
T5
2
1
L-
L+
SIPROTEC 5
Tx Rx
CM-0847
CP-8021
CP-8022
RS-232
(X2)
Mini Starcoupler
7XV5450
Fiber optic cable
max. 1.5 km