14
Terminator for the internal S0 access
You must terminate the internal S0 access.
Wire the last IAE / UAE socket with the two
100 Ohm terminators (see Figure 9).
The switches S4201 must be closed.
Connect the cable to the module’s
switchable S0 access
- Use the included marking system to mark
the cable
- Strip 11 mm off the wires
- Insert the individual wires in the terminal
until they move no further, but
without
pressing 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 to an internal S0 access
Set all switches of the DIP switch 4200 on
the module to "ON" (all sliders to the
right).
Guide the cable through the cable comb el-
ement.
Figure 9: 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
1st wire pair a1 red
b1 black
2nd wire pair a2 white
b2 yellow
During installation,
pay attention to
the numbering of
the UAE sockets.
Do not confuse a2
with b2 and a1
with b1.