ekey multi wiring
Cable recommendation:
J-Y(ST)Y 4 x 2 x 0,8
Wire assignment :
2 x RS485 bus; 2 x RS485 back-up for star-shaped wiring (back and forth!)
2 x power supply; 2 x back-up to increase cross-section for cable lengths above 50 m
7
On the first and the last device in the RS485 bus, the termination switch has to be set to “ON”.
First
device
in the bus (chain)
Devices
in the
middle of
the bus
.
Depending on the
configuration, 0
to 3 units can be
placed here
Last
device
in the bus
(chain).
Termination
Switch position
BOTTOM
=
ON
Termination
Switch position
LEFT
=
OFF
BOTTOM
=
OFF
RS485: serial
wiring (in a line)
max. 500m
No star-shaped
wiring!
RIGHT
=
ON
Termination
Switch position
ekey cable
type A
luster
terminal
Safety isolating
transformer,
protection class
II
(SELV)
Inputs for
exit buttons
3,4
Inputs
for exit
buttons
1,2
Termination
Switch position
Termination
Switch Position
Right
=
ON
