ABB TRIO-20.0/27.6-TL-OUTD

- 71 -
000028EG
5 - Installation
Table: crimping scheme connectors RJ45
Pin N° Function
1 8
3 +T/R
5 -T/R
7 GND COM
1, 2, 4, 6, 8 not used
Use a connector with metal body to provide cable shield continuity!
For long distance connections, the connection on terminal connector is
preferable using a shielded twisted pair cable with characteristic imped-
ance of Z0=120 Ohm like the one shown in the following table:
Signal Symbol
-T/R
+T/R
SH
GND COM
-T/R
+T/R
SH
GND COM
Positive data +T/R
Negative data -T/R
Reference GND COM
Shield SH
Shield continuity must be provided along the communication line using the SH terminal and
must be grounded at a single point.