Thermon TraceNet TCM 18 - Manual (Page 19)

Cables for RS485 Communication
The following data highway cables listed in Table 2 are recommended.
CableType Recommended
120 Ohm, -20 to +60 C 22AWG FHDPE
insulation PVC outer jacket Belden 3107A or equal
120 Ohm, -30 to +80 C 24AWG PE in-
sulation PVC outer jacket Belden 9842 or equal
120 Ohm, -70 to +200 C 24AWG Teflon
FFEP insulation Teflon FEP outer jacket Belden 89842 or equal
Note all these products are designated as 120 ohm impedance for balanced line
communication uses.
Table 2: RS485 Cable Types
15 PN 50316_0514