Fujitsu AB* A12GATH, Design & Technical Manual

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WIRING SPECIFICATIONS
Use Size Wire type Remarks
Power supply cable
Maximum 1.25 mm
2
60245 IEC 57 or equivalent
1 ø AC208- 240 V 50/60 Hz,
2-Wire + ground
(Always ground the unit)
Minimum 0.5 mm
2
Transmission cable
Ethernet category 5 or higher
STP LAN cable with RJ45
Straight cable
Fuse capacity 1.25 A

Always ground the unit
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CONFIGURATION PROCEDURES
The following procedures presume that all VRF indoor/outdoor units are commissioned
and operational, and that BACnet
®
network toward the BMS workstation is operational.
1. Power device
The first step to perform is to power up the device. To do so, a power supply working with any
of the voltage range allowed is needed. Once connected the LED_PWR led will turn on.
2. Connect to BACnet
®
interface
Connect the communication cable coming from the network hub or switch to the Ethernet port
(Figure above) of the gateway. The cable to be used is a straight Ethernet STP CAT5 or higher
cable.
In case there is no response from the BACnet
®
devices to the frames sent by gateway, check
that they are operational and reachable from the network connection used by the gateway.
Check the gateway Ethernet interface sending Pings to its IP address using a PC connected to
the same Ethernet IP network. If the problem persists communicating through the LAN of the
building, contact the network administrator.
The BACnet
®
Gateway for VRF System comes with DHCP functionality enabled by default.
3. Connect to VRF network
Use the LON connector in the left bottom corner of the gateway in order to connect the VRF
network to the UTY-VBGX.
UTY-VBGX
(LON terminal block)
C2
VRF network connection through LON
VRF network
Cable
(Three wires)
Cable
(Three wires)
A - - X1
B + + X2
SGND SGND
4. 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:
● USB cable: To connect the device to the PC the USB cable supplied should be plugged to the
USB Console port.This method is recommended.
● Ethernet: Using the ETH port of the gateway.
● Install the configuration tool to the PC before connecting to the Gateway.
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