Juniper SRX550, Hardware Manual

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Configuring the Modem at the SRX550 Services Gateway End
Before you can connect a dial-up modem to the console port on the SRX550 Services Gateway, you must
configure the modem to accept a call on the first ring and to accept DTR signals. You must also disable
flow control on the modem.
NOTE: These instructions use Hayes-compatible modem commands to configure the modem.
If your modem is not Hayes-compatible, refer to the documentation for your modem and enter
equivalent modem commands.
To configure the modem on the services gateway end:
1. Connect the modem to the management device (a desktop or laptop computer).
2. Power on the modem.
3. From the management device, 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, as shown in Table 27 on page 85 .
Table 27: Port Settings
Value Port Settings
9600 Bits per second
8 Data bits
None Parity
1 Stop bits
None Flow control
5. In the HyperTerminal window, type AT.
For more information on the AT commands, see the Initial Configuration for Security Devices .
An OK response verifies that the modem can communicate successfully with the COM port on the
management device.
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