Fujitsu UTY-VBGX Instruction Manual page 141

BACnet Gateway for VRF System
6.5 Connect to Fujitsu interface
Use the LON connector in the left bottom corner of the gateway in order to connect the VRF network to the UTY-
VBGX. Remember to follow all safety precautions indicated by Fujitsu.
Modifying some other parameters can affect proper communication.
UTY-VBGX
(LON terminal block)
Cable
(Three wires)
A
B
SGND
NOTE: Torque to be applied on the LON connector screws (A,B,SGND) is 0.5 Nm
Tighbten the terminal screws to the specified torques, otherwise, abnormal overheating may occur and possibly cause
heavy damage inside the unit.
• To peel the sheath form the lead cable, use a dedicatied tool that will not damage the conductor cable.
• When installing a screw on the terminal block, do not cut the cable by overtightening the screw. On the other hand, under
tightened screw can cause faulty contact, which will lead to a communication failure.
6.6 Connect to PC (Configuration tool)
This action allows the user to have access to configuration and monitoring of the device. Two methods to connect
to the PC can be used:
•
Ethernet: Using the ETH port of the gateway. How to check connectivity is explained in section 6.3.
•
USB cable: To connect the device to the PC the USB cable supplied should be plugged to the USB
Console port.
C2
VRF network connection through LON
-
+
WARNING
Copyright© 2021 Fujitsu General Limited - All rights reserved
INSTRUCTION MANUAL r1.4.0 eng
CAUTION
VRF network
Cable
(Three wires)
- A
+ B
SGND
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