Siemens SIMATIC TIWAY 1 Manual de usuario descargar pdf (Pagina 28)

Network Design Considerations

2-11

TIWAY 1 Ti505 NIM User Manual

With

the cover removed from the PPX:500–5606 T

ap Housing,

note that there are three

sets of terminals, and that each set is labeled G (Ground), W (White), and B (Blue). (See

Figure

2Figure 2.) One set of these terminals is for the incoming Local Line twisted pair;

the

center set is for the drop line; and the remaining set is used to connect the Local

Line

the following node, or to terminate the Local Line if the tap housing is the last one on

the

network trunk.

For

consistency in installation, always connect the LLM+ (Pin 6 of the Local Line Con

nector)

to the white strand of the twisted pair and to the terminal marked “W”

in the tap

housing. Connect the blue strand to the LLM– (Pin 9 of the Local Line Connector) and to

the terminal marked “B” in the tap housing. The Cable Shield and Signal Common

should

be connected to Pin 3 of the Local Line

connector and to terminal “G” inside the

tap

housing.

NOTE

All Siemens tap housings contain factory-installed termination

resistors.

If the tap housing is not used to terminate the

Local Line, the

terminating resistors must be removed when the output cable is

attached.

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Siemens SIMATIC TIWAY 1 Manual de usuario Pagina 28