Ashcroft DM61 Manual do Utilizador descarregar pdf (Página 8)

Serial Communication Adapters Instruction Manual

The cabling used for an RS-422 or RS-485 serial communications

network should always be a high quality cable such as Belden 8162 or

Alpha 6203C. A two-wire system requires two twisted pairs, and a four-

wire system requires three twisted pairs (the extra twisted pair is

needed for the signal ground).

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Ashcroft DM61 Manual do Utilizador Página 8