Cable Data; Rs232 - Bus Length And Cable Type; Rs422 - Bus Length And Cable Type - B&R Automation PC 3100 User Manual

A.4 Cable data
Signal
RS232 "RS232 - Bus length and cable type" on page 245
RS485 "RS485 - Bus length and cable type" on page 246
A.4.1 RS232 - Bus length and cable type
The maximum transfer rate of 115 kbit/s depends on the cable length and type of cable used.
Bus length
≤15 m
≤10 m
≤5 m
Preferably, the cable material used should have the following properties or deviate only slightly from them in order
to achieve an optimal transfer rate.
RS232 cables
Signal line
Cable cross section
Wire insulation
Conductor resistance
Stranding
Shield
GND
Cable cross section
Wire insulation
Conductor resistance
Outer jacket
Material
Properties
Cable shield
A.4.2 RS422 - Bus length and cable type
The RTS line must be switched on to activate the transmitter.
The maximum transfer rate of 115 kbit/s depends on the cable length and type of cable used.
Bus length
1200 m
Preferably, the cable material used should have the following properties or deviate only slightly from them in order
to achieve an optimal transfer rate.
RS422 cables
Signal line
Cable cross section
Wire insulation
Conductor resistance
Stranding
Shield
GND
Cable cross section
Wire insulation
Conductor resistance
Outer jacket
Material
Properties
Cable shield
Automation PC 3100 User's manual V 2.10
Signal
RS422 "RS422 - Bus length and cable type" on page 245
CAN "CAN - Bus length and cable type" on page 246
Transfer rate
Typ. 64 kbit/s
Typ. 115 kbit/s
Typ. 115 kbit/s
Property
4x 0.16 mm² (26 AWG), tinned copper stranded wire
PE
≤82 Ω/km
Wires stranded in pairs
Pair shielding with aluminum foil
1x 0.34 mm² (22AWG/19), tinned copper stranded wire
PE
≤59 Ω/km
PUR compound
Halogen-free
Tinned copper wire
Transfer rate
Typ. 115 kbit/s
Property
4x 0.25 mm² (24AWG/19), tinned copper stranded wire
PE
≤82 Ω/km
Wires stranded in pairs
Pair shielding with aluminum foil
1x 0.34 mm² (22AWG/19), tinned copper stranded wire
PE
≤59 Ω/km
PUR compound
Halogen-free
Tinned copper wire
Appendix A
245