OXTS Survey+ v3, User Manual, Page: 36 / 103

36
Oxford Technical Solutions
Connection details for Ethernet configuration
The RJ-45 connector on the 14C00121 x 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 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 18. Note that this is not the normal configuration sold and it may be necessary to
modify an existing coupler to suit.
Table 18. In-line coupler connections
Socket 1 Straight socket 2 Crossed socket 2
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 12.
Figure 12. In-line RJ-45 coupler