9
Termination for the internal S0 access
You must terminate the internal S0 access.
Wire the last IAE / UAE connection socket
with the two 100 Ohm terminators (see
Figure 4).
The two switches S1301/cd must be closed.
The switches S130/1/cd are located on the
module’s component side.
Connect the cable to the switchable S0
access of the module
- Mark the cable with the included marking
system
- Strip 11 mm off the wires
- Push the individual wires into the terminal
until they move no further
without
press-
ing the terminal spring.
- To separate a connection, use a suitable
tool (screwdriver with a narrow blade) to
press down the terminal spring and pull
out the wire.
- Switching over to internal S0 access
On the module, set all switches of the DIP
switch S 1300 to "ON" (all sliders to the
right).
Guide the cable through the cable comb
element.
1st wire pair: a1 red
b1 black
2nd wire pair: a2 white
b2 yellow
Figure 4: Wiring an
internal S0 access
100
Ω
Wire pair 1: a1, b1
Wire pair 2: a2, b2
b1
b2
a1
a2
S
0
- internal
100
Ω
Max. distance
130 m S
0
-bus
1
UAE
2 3 4
5 6 7 8
1
UAE
2 3 4 5 6 7 8
1
UAE
2 3 4 5
6 7
8
1
UAE
2 3 4
5
6 7 8
b1
b2
a1
a2
S
0
- internal
100
Ω
100
Ω
IAE
1a 1b
2a 2b
IAE
1a 1b
2a 2b
IAE
1a
1
b
2a 2b
IAE
1
a
1b
2a
2
b
Pay attention to the
numbering of the UAE
sockets when installing!
Do not swap a2 with b2
and do not swap a1 with
b1!
