90030500B Installation Page 39
Four pin RJ-11
The four pin RJ-11 plug is suitable for connections that require only data signals, for
example modems or printers that employ software handshaking. No hardware hand-
shaking is available with this configuration.
Figure 12 RJ-11 4 Pin Plug and Jack Wiring
RJ-45 - 4 Pin Plug RJ-45 - 10 Pin Jack
1
2
3
4
Pin Pin
GND
TxD
RxD
SG
RI
DSR
RTS
GND
TxD
RxD
SG
CTS
DTR
DCD
Signal
1
2
3
4
5
6
7
8
9
10
Signal
Pin 1
Pin 4
Pin 1
Pin 10
N/C
N/C
N/C
N/C
N/C
N/C
N/C
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