7. Connection Procedure 12 4 Connect the Distributed Sensor Distributed Sensor Unit to the Fiber Amplifier, and Fiber Amplifier attach the protective cap. Check the hardware switches on Termination switch the Distributed Sensor Unit by referring to the figure on the Unit address switch right. Protective cap 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 Power Distributed Sensor Unit with the DS-Bus communications cable. DS-Bus supply Power communications cable supply *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 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