Chapter 10: Connecting the Switch

3.From the computer, start your asynchronous terminal emulation application (such as Microsoft Windows HyperTerminal) and select the COM port to which the modem is connected (for example, COM1).

4.Configure the port settings shown in Table 54 on page 185.

Table 54: Port Settings

Port Settings

Value

Bits per second

115200

Data bits

8

Parity

None

Stop bits

1

Flow control

None

5.In the HyperTerminal window, type at. Press Enter.

The modem sends an OK response to verify that it can communicate successfully with the COM port on your desktop or notebook computer.

6.To configure the modem to answer a call on the first ring, type ats0=1 at the prompt. Press Enter.

7.To configure the modem to accept modem-control DTR signals, type at&d1 at the prompt. Press Enter.

8.To disable flow control on the modem, type at&k0 at the prompt. Press Enter.

9.To set the fixed serial port speed on the modem, type at&b1 at the prompt. Press Enter.

NOTE: You must set the serial port to the fixed speed so that the modem will not adjust the serial port speed to the negotiated line speed.

10.To save the new modem settings, type at&w0 at the prompt. Press Enter.

The modem sends an OK message. The modem is now ready to be connected to the switch.

Connecting the Modem to the Console Port

The console port on every EX Series switch accepts a cable with an RJ-45 connector. Figure 75 on page 186 shows the RJ-45 connector of the Ethernet cable supplied with the switch.

Copyright © 2010, Juniper Networks, Inc.

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Juniper Networks EX8208 manual Connecting the Modem to the Console Port, Port Settings Value