Siemens SIMATIC TI500 Bedienungsanleitung PDF herunterladen (Seite 25)

Network Installation

2-9

TIWAY I Gateway User Manual

100′

80′

100′

max

30″

30′

Double Drop

Drop

lines less

than 36 inches

can be ignored.

100′

50′ min

I000000

″

max

Figure 2-6 Additional

ap Spacing Rules

If a tap cable is installed

less than the minimum

distance as stated in the

primary rule, then the two drops, the previous one and the one being

installed, are considered a

double

drop

Double

drops are allowed, but triple drops are not allowed.

After installing a double drop, the next tap must be placed at the minimum

distance or farther

. In this case, the minimum distance would be one half

the distance of the longest of the two tap lines making up the double drop.

Drops that have a tap line that is

less than 36 inches

can be ignored in

calculating the minimum distance between taps.

There is no limit to the number of drop stations that can be connected to the

same tap line.

Each station must have its own tap, and the overall drop line length cannot

exceed 100 feet. The cable used to attach each station to the drop line

cannot

exceed the 36-inch maximum.

Double Dr

ops

Short Dr

ops

Multidr

op T

aps

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