Emerson FB3000 Instruction Manual page 40

Remote terminal unit
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Emerson FB3000 RTU Instruction Manual
D301851X012
October 2022
When connecting COM2 to an RS-485 (4-wire) port on another device use a cable with
configurations as shown in
Figure 2-24. COM2 Configured as RS-485 (4-wire)
1
2
30
Figure
RS-485 (4-wire) port on device
Connect cable shields to suitable Instrument Earth connection point
2-24:
Installation

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