Ashcroft DM61 Manuel d'utilisateur télécharger pdf (Page 15)

Serial Communication Adapters Instruction Manual

Figure 3. RS-485 Half-Duplex (Multi-Drop) Two-Wire Wiring

Notes:

1. Termination resistors are optional and values depend on the cable

length and characteristic impedance. Consult the cable manufacturer

for recommendations.

2. Use shielded cable, twisted-pair plus ground. Connect ground shield

only at one location.

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Ashcroft DM61 Manuel d'utilisateur Page 15