5-4
APX 1000™ Getting Started Guide
Configuring the Shelf Controller
Logging into the shelf controller
Figure 5-3. Backup administrative connection via a modem to the APX 1000 unit
The modem you use to connect to the APX 1000 must be configured as follows:
•
Dumb mode. Dumb mode causes the modem to ignore data on the receive data (RD) lead.
•
Ignore on-to-off transitions of the data-terminal ready (DTR) lead.
•
Auto answer enabled.
•
8 bits, 1 stop bit, and no parity.
Configure the following AT commands on the modem:
Logging into the shelf controller
To configure the unit initially, or after clearing its NVRAM, you must connect a workstation to
the serial port (labeled CONTROL) of the shelf controller.
After connecting the management workstation, launch a communications program that
supports terminal emulation. Make sure that the terminal emulation settings specify 9600bps,
8 data bits, 1 stop bit, and no parity or flow control.
The default settings for the serial port profile allow anyone connecting to the diagnostics port
to access the system as the administrative (
admin
) user, without logging in or being
authenticated. When you connect to an unconfigured APX 1000 unit to which power has been
applied, you are presented with the prompt for the
admin
user:
admin>
at&d0
Ignore DTR state.
ats0=1
Answer automatically after one ring.
ate0
No echo (required).
at&c0
Assert the data carrier detect (DCD) signal.
atq1
Do not send result codes.
at&w0
Store in nonvolatile RAM (NVRAM) as profile 0 (zero).
at&y0
Use the stored configuration from profile 0 (zero) on startup.
