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Connection details for Ethernet configuration
The RJ-45 connector on the 14C0038x user cable is designed to be connected directly to a network hub. To
extend the cable it is necessary to use an in-line coupler. This is two RJ-45 sockets wired together in a straight-
through configuration. Following the in-line coupler, a normal, straight UDP Cat 5e cable can be used to connect
the coupler to the hub.
The RT can be connected directly to an Ethernet card in a computer. To do this a crossed in-line coupler must
be used. The connections in the crossed coupler are given in Table 22. Note that this is not the normal
configuration sold and it may be necessary to modify an existing coupler to suit.
Table 22: In-line coupler connections
Pin 1 Pin 1 Pin 6
Pin 2 Pin 2 Pin 3
Pin 3 Pin 3 Pin 2
Pin 4 Pin 4 -
Pin 5 Pin 5 -
Pin 6 Pin 6 Pin 1
Pin 7 Pin 7 -
Pin 8 Pin 8 -
A typical in-line coupler is shown in Figure 18.
Figure 18: In-line RJ-45 coupler
Dual antenna systems
It is often useful to have an understanding of how the RT uses the measurements from the dual antenna
system. This can lead to improvements in the results obtained.