1 I/O bus (10 pins, female) to electrically connect the first terminal unit
2 Plug (1x 50 pins and 2x 57 pins) to electrically connect the inserted PROFINET communica-
tion interface module
3 With a screwdriver, inserted in this place, the PROFINET I/O terminal unit and the adjacent
I/O terminal unit can be shoved from each other
4 2 holes for wall mounting
5 3 removable connectors to connect the subordinated bus systems
6 2 RJ45 interfaces with indication LEDs for connection with the PROFINET network
7 6 spring terminals for process supply voltage (UP)
8 DIN rail
The PROFINET communication interface modules plug into the PROFINET I/O terminal unit.
When properly plugged-in, they are secured with two mechanical locks. All the electrical con-
nections are established via the PROFINET I/O terminal unit, which allows removal and replace-
ment of the communication interface modules without disturbing the wiring at the PROFINET I/O
terminal unit.
The PROFINET I/O terminal unit TU520-ETH are specifically designed for use with AC500/S500
PROFINET communication interface modules (e. g. CI504-PNIO, CI506-PNIO).
Terminal Units (AC500 Standard) > TU520-ETH for PROFINET Communication Interface Modules
2019/04/173ADR010121, 13, en_US162
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