Table of Contents
Advertisement
SHIELD
485+
485-
RTN
SHIELD
485+
485-
RTN
Shield continuity must be provided along the communication line and must be grounded in a
single point.
For information on installation, compatibility and use, please refer to the specific documentation
on the accessory components.
For long distance connections, the connection on terminal connector
is preferable using a shielded twisted pair cable with characteristic
impedance of Z0=120 Ohm like the one shown on the following table:
The RS485 line can be used to set up a line of communication which,
when connected to a monitoring device, enables the operation of the
photovoltaic system to be kept under control. Depending on the device
used monitoring can be local or remote.
- 90 -
5 - Installation
Signal
Symbol
Positive data
Negative data
Reference
Shield
TO MONITORING
SYSTEM
RTN
485-
SHIELD
485+
485-
RTN
-
485+
Advertisement
Table of Contents
