B&R Panel PC 2100 User Manual page 204

Technical data
2.3.5.8.3.3 RS422 - Bus length and cable type
The RTS line must be switched on to switch the transmitter to active.
The maximum transfer rate of 115 kbit/s depends on the cable length as well as the type of cable being used.
Extension
1200 m
The material used for the cable should have all of the following properties or deviate from them as little as possible
to achieve an optimal transfer rate.
RS422 cable
Signal lines
Cable cross section
Wire insulation
Conductor resistance
Stranding
Shield
Ground line
Cable cross section
Wire insulation
Conductor resistance
Outer jacket
Material
Properties
Complete shielding
2.3.5.8.3.4 RS485 - Bus length and cable type
The maximum transfer rate of 115 kbit/s depends on the cable length as well as the type of cable being used.
Extension
1200 m
The material used for the cable should have all of the following properties or deviate from them as little as possible
to achieve an optimal transfer rate.
RS485 cables
Signal lines
Cable cross section
Wire insulation
Conductor resistance
Stranding
Shield
Ground line
Cable cross section
Wire insulation
Conductor cross section
Outer jacket
Material
Properties
Complete shielding
204
Table 206: RS422 - Bus length and transfer rate
4x 0.25 mm² (24 AWG / 19), tinned copper stranded wire
1x 0.34 mm² (22 AWG / 19), tinned copper stranded wire
Table 207: RS422 - Cable requirements
Table 208: RS485 - Bus length and transfer rate
4x 0.25 mm² (24 AWG / 19), tinned copper stranded wire
1x 0.34 mm² (22 AWG / 19), tinned copper stranded wire
Table 209: RS485 - Cable requirements
Transfer rate
Typ. 115 kbit/s
Property
PE
≤82 Ω/km
Wires stranded in pairs
Paired shield with aluminum foil
PE
≤59 Ω/km
PUR compound
Halogen-free
Composed of tinned copper wires
Transfer rate
Typ. 115 kbit/s
Property
PE
≤82 Ω/km
Wires stranded in pairs
Paired shield with aluminum foil
PE
≤59 Ω/km
PUR compound
Halogen-free
Composed of tinned copper wires
Panel PC 2100 user's manual V1.17