VZR.247800.001
IM
Turnstile CUBE C-03
Installation Manual
31
APPENDIX A
—
Brief description of CAN2.0 data bus
A modern noise-resistant CAN2.0 standard bus is used for CP operation.
According to CAN2.0 standard, length of the signal transmission cable can reach
values of more than a kilometer, but correct operation at such distances depends
on many factors.
For distances more than 25 meters, it is mandatory to use a Cat5e or Cat6
twisted pair. Total electrical resistance of CP DC power supply wire of should not
exceed 50 Ohms.
If this requirement cannot be met, additional 12V/100mA PSU can be set at
the CP place (the minimum operating voltage of PSU is 7.5 V). At the same time,
3 wires from the turnstile (CL, CH, GND) are enough for correct operation.
Two control panels can be connected to one turnstile.
An important feature of the CAN2.0 bus is the presence of 120 Ohm
resistors at the ends of the bus. In a standard CP, such a resistor is already
installed.
