APPENDICES
OI-6000-X-X-X-X-O OPS_GUIDE_REV 3.1
57
The signal wire of each unit is run to the signal terminal of the neighboring sensor. With each device connected to the previous
device via the signal wire, a “chain” is created, with the first device in the chain directly connected to the monitor.
RS-485 Modbus Connection Distances for Electrical Wiring
Distance
Length
Gauge Size
Twisted Pairs
Short
< 100 Feet
22 to 24 Gauge
Shielded, in areas of high noise
Medium
101 Feet to 1,000 Feet
18 to 20 Gauge
Shielded, in areas of high noise
Long*
1,000 Feet to 4,000 Feet
18 to 20 Gauge
Shielded, in areas of high noise
(*) Terminating resistor may be required for the last device in the daisy-chain.
Summary of Contents for GEN II OI-6000
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