Figure 21 Serial Cable (9-Pin D-Sub Plug To Rs-232-C Modem Plug); Table 15 Multiple Db9 And Db25 Connector Pinouts - Nortel 600 Installation Manual

74 Appendix A Technical specifications

Figure 21 Serial cable (9-pin D-sub plug to RS-232-C modem plug)

Pin 5
Pin 9
9-position D-sub receptacle with screw locks
(ground shield connected to backshell)
Table 15

Table 15 Multiple DB9 and DB25 connector pinouts

Serial port
DB9 connector
Pinout Signal
2 RXD
3 TXD
4 DTR
5 Ground
6 DSR
7 RTS
8 CTS
NN46110-308 02.01
(3.05 m)
Pin 1
Pin 6
provides the multiple DB9/DB25 serial interface cable pinouts.
Serial port
DB25 connector
Pinout Signal
3 TXD
2 RXD
20 DSR
7 Ground
6 DTR
4 RTS
5 CTS
10 ft
Pin 1
Pin 14
25-position D-sub plug with screw locks
(ground shield connected to backshell)
Serial port
DB25 connector
Pinout
> 2
> 3
> 6
> 7
> 20
> 5
> 4
Serial port
DB9 connector
Signal Pinout
RXD 3
TXD 2
DTR 6
Ground 5
DSR 4
CTS 8
RTS 7
Pin 13
Pin 25
CAB0056A
Signal
TXD
RXD
DSR
Ground
DTR
CTS
RTS