44 1670 001-GB-I
HDA eco
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3.1.5.3 RS422-Connection
In this case data transmission is possible up to a cable length of approx. 1100 yards.
An RS232-to-RS422 converter is required at the PC end and the ‘RS422 socket mo-
dem’ must be plugged in on the HDA eco. The PC must have a free COM port or a USB-
to-RS232 adaptor.
Connection diagram
3.1.5.4 LAN Connection
The link via a cable-connected LAN interface to an existing local network enables
communication to a PC. The PC must be in the same network. For details concerning
the connection and the necessary settings, see chapter 5.3.4.3.10.
Connection diagram
6 5 4 3 2 1
HD
Manager
Converter IC-485SI
DCE
DTE
Tx On
Rx On
Plug-in power
supply
IC-485 SI
HDA eco
HDA eco
HD
Manager
Local area network