Table of Contents
Advertisement
Available languages
Available languages
32
8.3
Users at Module bus/RS-485
A plug has been soldered to the cable of the operating unit at the factory especially for
test and premounting sets. For the final installation, it usually has to be cut off.
8.3.1
Line length and end of line resistors
The
total length
of the
Note:
The bus line must be closed
The distance between the distributor and the user should be
For users that have no connectable end of line resistor (e.g. "Accentic" readers), the resistor must be
installed in a distributor.
A
RS-485 user
B
6 m max.
8.3.2
Voltage supply of users
NOTE:
The
total current consumption
Therefore
only one reader
preferably in an unsecured area).
More readers must be supplied via an external source (e.g. U_ext from the control panel or a separate
power supply unit).
AC readers
and
Trafficpoint RS-485
8.3.3
Direct connection to one reader
Possible types see
Chapter
F
I
1
2
3
4
5
6
7
8
9
3
r
0
An end of line resistor is not required at the user for
cable lengths £
6 m.
The cable can be shortened as required.
applicable.
External voltage supply U_ext
The external source must provide the max. required current
to the reader (e.g. time-limited write/read mode incl. status
indication, possibly with background lighting).
Mounting and Connection Instructions Door controller module for MB
RS-485 bus line can be
at both ends
120 W
Distributor
(max. 2)
at connection +U_BDT may not exceed
can be directly supplied by the IK3 EU with 12 V DC via +U_BDT (reader
must always be supplied
+U_ext
4.
RS-485
6 m max.
Otherwise Chapter 8
.3.1 is
:
up to 2000 m.
W.
with
120
max. 6 m
Bus cable 2000 m max.
externally.
0 V
+U_BDT
12 V DC
red
0 V
blue
yellow
A(D)
B(D*)
white
Synch.
black
Shield
Door controller module
A
JP15
120 W
RS-485
JP15
B
200 mA
.
Door controller module
JP15 plugged:
W
120
EOL resistor
activated
JP15
Attention:
Do not confuse the data lines
A and B, otherwise the
device will not function!
ST23
Cable shields
+
Advertisement
Chapters
Table of Contents
