User's Manual

Doc.: HD0389-00-Manuale_TL_GWCxxxx_r.0.1_EN.doc-00 17/04/2011 Page 19 of 49
2.2.6. RS232/RS485 Interface
Introduction RS232 allows a point-to-point link, whilst the RS485 allows a
multipoint link, according to EIA/TIA232E CCIT V.28 e RS-485
CCITT V.11 X.27 standards.
The interface is insulated and it is powered by an on board
insulated DC/DC converter, so no external power source is
needed.
Please refer to section 5 for information about the available
controller.
Please refer to software manual for information related to how
serial interface operates.
Cabling
requirements
Please use a 0.5mm
2
(#20 AWG) or a 0.25mm
2
(#23AWG)
twisted pair for RS232/RS485 interface connection
i