Product manual

4 Connecting the TAC Xenta 527-NPR to Your Network TAC Xenta 527-NPR, Product Manual
22 (42) Schneider Electric Buildings AB, Mar 2010
04-00053-01-en
4.3 Connecting the TAC Xenta 527-NPR to an I/NET
Controller LAN
The Xenta 527-NPR connects to the I/NET controller LAN through ter-
minal 19 and 20 of its lower terminal block connector.
To connect the Xenta 527-NPR to an I/NET controller LAN
1 Connect the positive (+) line to position 19.
2 Connect the negative (–) line to position 20.
3 Splice shield wires together at each device on the controller LAN,
and connect to a good earth ground at one location only. Ensure
that shield wire continuity is maintained across the controller
LAN.
Fig. 4.2: Controller LAN connections
A
RS 232 B
TAC Xenta
RS485 C
RX/
TX+
RX/
TX–
10Base-T
11 12 13 14 15
16
17
18
19 20
IP address.................-................-...............-................
Controller LAN
Connections
Note
The polarity of the RS485 connection is important. It is recommended
that you observe the network’s polarity convention (the positive line
connected to position 1, and the negative line to position 2, on all
devices). This convention will help ensure consistent voltage measure-
ments should diagnostic troubleshooting become necessary.