Cable Specification For Modbus Connection - Honeywell Sensepoint XCL Installation Manual

Installation
Cable Specification for Modbus Connection
Terminal Resistor
20
NOTE
Where possible, spur or 'T' connections should be avoided. Always
keep the spur connection as short as possible.
Type
Modbus
Connect a 120 Ω, 0.25 W terminal resistor between the A and B
terminals at the end of the line.
Cable Spec
2 2
0.5 mm to 2.5 mm twist pair shied cable
Max Length
1000 m