Danntech PI-USB/RS485-I Podręcznik użytkownika - Strona 2

Przeglądaj online lub pobierz pdf Podręcznik użytkownika dla Konwerter mediów Danntech PI-USB/RS485-I. Danntech PI-USB/RS485-I 3 stron. Usb to rs485 converter

Installing the Termination Resistor Link
It is only quite rarely that you will need to install a termination resistor in the USB to RS485
adapter. More commonly the termination resistance is installed at the end of your
communications line. If you are experiencing data loss (and know that your slave devices are
working and addressed correctly) rather:
1. reduce the communications speed,
2. then add a termination resistance at the end of your line and
3. then try installing the termination resistor in the adapter.
The adaptors are delivered with the links open – no termination.
Prise open the unit carefully just a little using a small screwdriver at the corners of the unit. Use
a larger screwdriver to avoid bruising the plastic housing:
Part Numbering
PI-USB/RS485
PI-USB/RS485-I
PI-USB/RS485-IX USB to RS485 Converter High Speed – Isolated
©
danntech
PROCESS INSTRUMENTATION 2014
USB to RS485 Converter
USB to RS485 Converter – Isolated
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