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● Length requirements:
FastEthernet has proved that the cable length between devices should not
exceed 100 m in the case of an EtherCAT bus. A longer cable will result in signal
attenuation that aects communication.
● Technical requirements:
Continuity testing is conducted on a 100% basis and no short circuits, open
circuits, and poor contact are found. The following cable specications are
recommended:
Item Specications
Cable type Flexible crossover cable, S-FTP, Cat 5e
Complied standards:
EIA/TIA568A, EN50173, ISO/IEC11801
EIA/TI Abulletin TSB, EIA/TIA SB40-A&TSB36
Conductor cross section AWG26
Conductor type Twisted pair
Pair 4
4.4 Termination Resistor DIP Switch for Communication
The termination resistor DIP switch for communication is located inside the
battery compartment. ON indicates that the termination resistors are activated (all
toggles are set to OFF by default). As shown in the following gure, toggles 1 and
2 are used for RS485 communication, and 3 and 4 for CAN communication.
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