DB-9 Connector Pinouts for the Routing Engine Console and Auxiliary Ports

The ports on the craft interface labeled AUXILIARY and CONSOLE are DB-9 receptacles that accept RS-232 (EIA-232) cable. The AUXILIARY port connects the Routing Engine to a laptop, modem, or other auxiliary unit, and the CONSOLE port connects it to a management console. The ports are configured as data terminal equipment (DTE). For more information, see Routing Engine LEDs and Interface Ports. Table 25 describes the DB-9 connector pinouts.

Table 25: DB-9 Connector Pinout

Pin	Signal	Direction	Description
1	DCD	<-	Carrier Detect
2	RxD	<-	Receive Data
3	TxD	->	Transmit Data
4	DTR	->	Data Terminal Ready
5	Ground	—	Signal Ground
6	DSR	<-	Data Set Ready
7	RTS	->	Ready to Send
8	CTS	<-	Clear to Send
9	RING	<-	Ring Indicator