4 Product overview
Communication connection
22
Installation and operation manual M70A_260 Flex RPI703M26000 EU V1.1 EN 2022-08-02
4.7
Communication connection
Related topics
“5.7 Planning the device communication and plant monitoring”,
page 48
“5.8 Grid and system protection”, page 53
“6. Planning the Commissioning”, page 54
“7.6 Connecting the communication card”, page 65
Fig. 4.13: Cable feed-through for the communication cables
4
3
1
2
5
Fig. 4.14: Components of the communication card
1
Digital inputs and external power-off (terminal block)
2
DIP switch for the RS485 termination resistor
3
2 x dry contacts (terminal block)
4
RS485 (terminal block)
5
Protection against electromagnetic interference (EMI)
Connection
Connector type
2 x RS485 (DATA+ and DATA–)
Terminal block
1 x VCC (12 V, 0.5 A)
Terminal block
Connection
Connector type
6 x digital inputs
Terminal block
2 x dry contacts
Terminal block
1 x external power-off (EPO)
Terminal block
Table 4.4.: Connections on the communication card
Cable type
Shielded and twisted pair cable
(CAT5 or CAT6)
Cable diameter
7.2 mm
Wire cross section
0.25 ... 1.5 mm
2
Table 4.5.:
Specification of the communication cable
