Incon OPTImizer 2 - Figure 26: 25-Pin to 9-Pin Cable Connections

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(IN) DCD 8
(IN) RXD 3
(OUT) TXD 2
(OUT) DTR 20
GND 7
6
(OUT) RTS 4
(IN) CTS 5
9
DTE Device
STRAIGHT- THROUGH
1 DCD (OUT)
2 RXD (OUT)
3 TXD (IN)
4 DTR (IN)
5 GND
6 N/C
7 RTS (IN)
8 CTS (OUT)
9 N/C
DCE Device
OPTImizer
2
9
Pin
25
Pin
Pins 1 and 4
are connected
internally
(IN) DTR 2
0
(IN) TXD 2
(OUT) RXD 3
(OUT) DCD 8
GND 7
6
(OUT) CTS 5
(IN) RTS 4
9
DCE Device
“NULL MODEM”
Cable
1 DCD (OUT)
2 RXD (OUT)
3 TXD (IN)
4 DTR (IN)
5 GND
6 N/C
7 RTS (IN)
8 CTS (OUT)
9 N/C
DCE Device
OPTImizer
2
9
Pin
25
Pin
Pins 1 and 4
are connected
internally
Figure 26: 25-pin to 9-pin Cable Connections
Note: All references are to DTE 25 and 9 pin conventions.