![Santerno SUNWAY TG1200 1000V TE OD Installation Manual Download Page 72](http://html1.mh-extra.com/html/santerno/sunway-tg1200-1000v-te-od/sunway-tg1200-1000v-te-od_installation-manual_810313072.webp)
MODULAR SUNWAY TG
TE OD
INSTALLATION GUIDE
72/
139
Rev. 03
– 01/06//2018
Figure 42: Serial link terminal board
Terminal
board
Position
Function
DC.X11
1
(TX/RX A) Differential input/output A (bidirectional) according to the
RS-485 standard. Positive polarity in respect to pin 2 for one MARK. D1
signal according to the nomenclature from the MODBUS-IDA
association.
2
(TX/RX B) Differential input/output B (bidirectional) according to the
RS-485 standard. Negative polarity in respect to pin 1 for one MARK.
D0 signal according to the nomenclature from the MODBUS-IDA
association.
3
0V(GND) serial link zero volt
. “Common” according to the MODBUS-
IDA association.
4
Shield.
For details related to communications please refer to section
Error! Reference source not found.
.
NOTES
The serial link zero volt is isolated both in respect to the environmental signal 0V and the digital
signal 0V.
6.8.
Installation of voltage transducers (VTs)