7. Connection Procedure
4
Connect the Distributed Sensor
Unit to the Fiber Amplifier, and
attach the protective cap.
Check the hardware switches on
the Distributed Sensor Unit by
referring to the figure on the
right.
5
Set the termination switch to
ON.
This switch turns ON and OFF the communications terminating resistance on
the Inter-Unit DS-Bus network.
Turn ON the DS-Bus termination switch only on the last Distributed Sensor
Unit on the DS-Bus network. Turn it OFF on all other Distributed Sensor Units.
6
Set the unit address switch to 1.
*Set the unit address to 1.
This switch sets the node address (decimal) that the E3NW-DS will use on
the Inter-Unit DS-Bus network.
The setting range is from 1 to 8. (Default setting: 1)
If you connect more than one Distributed Sensor Unit to the Sensor
Communication Unit, set the address for each Distributed Sensor Unit to
consecutive numbers starting from 1.
7
Connect the Digital Sensor
Communication Unit to the
Distributed Sensor Unit with the
DS-Bus communications cable.
*For the wiring of the DS-Bus
communications cable, refer to
6.2.2. Cable Wiring Diagram
.
8
Connect the Ethernet cable to
CN IN connector.
Turn ON the power supply.
Unit numbers are assigned to
the Fiber Amplifier as follows
after turning ON the power
supply.
Digital Sensor Communication
Unit: Sensor unit No. 1
Distributed Sensor Unit:
Sensor unit No. 2
Distributed Sensor
Fiber Amplifier
Termination switch
Unit address switch
Protective cap
DS-Bus
communications
cable
Power
supply
Power
supply
CN IN connector
12
Содержание CJ1W-NC82
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