Port Connectors

Table A - 3: DB-9 Connector Pinouts

Pin Number

Signal Name

 

 

 

 

4

Data Terminal Ready (DTR)

 

 

5

Ground (GND)

 

 

6

Data Set Ready (DSR)

 

 

7

Request to Send (RTS)

 

 

8

Clear to Send (CTS)

 

 

9

Ring Indicator (RI)

 

 

X-Series Hardware Installation and Safety Guide V 2.5

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3Com TECHD-0000000122 manual Port Connectors