![background image](http://html1.mh-extra.com/html/micro-epsilon/if2030-pnet/if2030-pnet_operating-instructions-manual_1785372014.webp)
Page 14
Installation and Assembly
IF2030/PNET
4.2.3
Cable Termination at Interface
i
Ensure correct cable termination for an RS485 bus or RS422 bus!
We recommend a 120 Ohm terminating resistor between the signal lines at both the bus start and end.
IF2030/PNET works as a master for both interfaces; internally, a 120 Ohm terminating resistor has already
been permanently incorporated. The IF2030/PNET should be at the bus start.
A
B
IF2030
Slave n
Slave n-1
120
Ohm
120
Ohm
RX+
RX -
IF2030
Slave 1
120
Ohm
120
Ohm
TX -
TX+
120
Ohm
120
Ohm
Fig. 7 Cable termination RS485,
n = max. 16 slaves
Fig. 8 Cable termination RS422
Summary of Contents for IF2030/PNET
Page 1: ...Operating Instructions IF2030 PNET...
Page 57: ......