YML717 Rev1 NetComm NB5 Ethernet/USB Modem Router
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Straight and crossover cable configuration
Figure 3
Figure 4
RJ11 connector and cable

An RJ-11 connector is the small, modular plug used for most analog telephones. It has six pin slots

in the head, but usually only two or four of them are used.

Figure 5
RJ-11 Connector
Pin Assignment Normal Assignment
1 Signal Ground
2 CTS
3 RXD
4 TXD
5 +5 Volts In
6 Signal Ground