Manual Datafox Evo 4.6 FleKey
Page 113
Date: 14.09.2021 V 04.03.17.XX
Correct!
Correct bus wiring of the access readers with star-shaped cable routing.
The wiring must not be parallel from one point. The wire pairs A and B must each be routed in se-
ries directly to the terminal of a reader and from there on to the next bus device in order to ensure
smooth operation of the bus communication.
RS485 A-B AC Master
e.g.: Datafox KYO Inloc
External power supply
Datafox EVO Intera 1
Datafox EVO Intera 2
Datafox EVO Intera 3
RS 485 twisted pair
of wires
yellow/white
RS 485 twisted pair
of wires
green/white
Junction box
+12V
GND
A cable can be led to the reader, ex-
ample: Cat cable,
Telecommunications cable
(JY(ST)Y), or similar
T
h
e
l
a
s
t
b
u
s
d
e
v
ic
e
m
u
s
t b
e
c
o
n
n
e
c
te
d
w
ith
a
t
e
rm
in
a
ti
n
g
re
s
is
to
r
1
2
0
Ω
b
e
tw
e
e
n
A
& B.
Al
te
rn
a
ti
v
e
ly
,
s
w
itc
h
DIP
s
w
itc
h
5
t
o
ON
f
o
r EVO
re
a
d
e
rs
.
