Pepperl+Fuchs WHA-GW Manual page 25

Wirelesshart gateway
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WHA-GW-*
Installation
Crossover or straight through wiring
There are different types of Ethernet cables, depending on the application. In a straight
through cable, both cable ends have T568A plugs or both ends have T568B plugs. In a
crossover cable, one end has a T568A plug and the other end a T568B plug.
Use straight through wiring if you connect the Gateway to a switch, hub or router (see
Figure 3.8 on page 25).
Use crossover wiring if you connect the Gateway directly to another ethernet device
(e.g. a PC) without a switch, hub or router (see Figure 3.8 on page 25).
Note!
Latest network interface cards and hub/switch/router versions can be able to automatically
adjust to the cable version used, also if this is not the applicable one according to the
guidelines given in this manual.
Figure 3.8Straight Through or Crossover connection
1 Gateway connected to PC via hub/switch/router
2 Straight Through cable
3 Gateway connected directly to PC
4 Crossover cable
2
4
2
1
3
25

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