Establishing a console/terminal connection to the C3100/C6100

About establishing a console/terminal connection

You establish a console/terminal connection to the C3100/C6100 for the following reasons:

To observe the system responses on the terminal screen when the system is started
To configure the C3100/C6100 after you start it

Protocol used by console port

The console port on your C3100/C6100 uses the three-wire protocol, for which your C3100/C6100 uses only the RD, TD, and SG pins.

Note
The C3100/C6100 ignores the DCD, DSR, CTS, and RI input pins. You must set the flow control of your console/terminal to none and configure the console/terminal to ignore the DTR and RTS output pins.

List of pin settings

The following table lists pin settings defined by RS-232 for DB-9 and DB-25 ports.

Note
The DB-25 pin settings are listed in case you have a 25-pin console/terminal.

The arrows in the table represent the following directions:

	Into the C3100/C6100
	Out from the C3100/C6100

DB-9 pins	DB-25 pins	Name	Direction	Description
1	20	DTR		Data Terminal Ready
2	3	RD		Receive Data
3	2	TD		Transmit Data
4	8	DCD		Data Carrier Detect
5	7	SG	N/A	Signal Ground
6	6	DSR		Data Set Ready
7	5	CTS		Clear to Send
8	4	RTS		Request to Send
9	22	RI		Ring Indicator

Connecting an ASCII terminal

To connect an ASCII terminal to the C3100/C6100, complete the following steps.

Step	Action
1	Verify that the following communication settings are the same on the terminal and the C3100/C6100.
	Parameter	Settings
	Baud rate	9600
	Data bits	8
	Parity	None
	Stop bits	1
	See the documentation for your terminal for information about verifying or changing the settings.
2	Connect one end of the DB-9 to DB-9 serial cable to the port labeled Console on your C3100/C6100 and the other end to your ASCII terminal. The following illustration shows the location of the Console port.