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4-6

Chapter 4. WIRING

z

5-wire system

Master station

＋

−

＋

−

This unit (slave station)

Shield

IMPORTANT

Terminating resistor

• Do not connect any terminating resistor to both ends of the

communication path. Doing so might cause the communication to fail.

• Even though any units requiring the terminating resistor exist in the

communication path, do not connect any terminating resistor.

Handling Precautions

• Do not connect DA and DB. Doing so might cause damage to this unit.

• Ground the shield line to one point on one side of the cable.

• Be sure to connect SG terminals each other.

Failure to do so might cause unstable communications.

Azbil C15 User Manual

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