Siemens SIMATIC TI555 - Figure 4-9 Multiple Tap Connections in Close Proximity; Figure 4-10 Spacing between Taps

4-15
Cabling and Wiring the System
TI545/TI555 System Manual
• Where several connections need to be made close together , it is better to
place a single terminal block in the trunk line and connect all nearby
equipment to that terminal block (Figure 4-9).
T
Remote
Base
Remote
Base
Remote
Base
Make
multiple connections like this... ... or this...
T
Remote
Base
Remote
Base
Remote
Base
... but not like this.
T T T
Remote
Base
Remote
Base
Remote
Base
Figure 4-9 Multiple T ap Connections in Close Pr oximity
• T
ap connections on the trunk line should be spaced, on average, so that
the total length of trunk cable separating several taps is greater than
the sum of the total length of drop cables connected at the taps
(Figure 4-10).
L
3
> (L
1
+ L
2
)
T T
Remote
Base
Remote
Base
L
1
L
2
L
3
Figure 4-10 Spacing between T aps