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Installation Tank Gauge Transmitter
8 Installation and Operations Manual
Figure 2-5: Typical EIA485 System Wiring
110/220 VAC 50/60 Hz.
Model 8130 with optional
48 VDC power supply.
Field Junction Box
Field Junction Box
Host Computer Interface
MODBUS interface is
certified by Honeywell
Office Printer
RS232 To FuelsManager
or other MODBUS master
Area 1
Area 0
FuelsManager
RTU 8130
Model 4000 ATT
Transmitters*
Model 4000 ATT
Transmitters*
Two 18 AWG
twisted pair cables
Two 18 AWG
twisted pair
cables
EIA85 comm.
with MODBUS to FIC
RS232 serial port
50 feet max to FIC
* Up to 31 units with
5000 ft. max. wiring distance
using good quality wire.