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14. Console Access
14.1 RS232
The console is accessible via an RS232 interface for direct connection to a
computer’s serial (COM) port. This is performed by connecting the unit’s
RS232 (MMI) port to the computer’s serial port via the included serial cable.
14.1.1 Requirements
All that is needed is a computer with a serial (COM) port containing some sort
of communications software (such as HyperTerminal, included with Microsoft
Windows operating systems) and the included DB9-RJ45 RS232 port cable
(part number 10425). Any communications software and PC will work, provided
they support ASCII communications at 38.4kbaud.
14.1.2 Connection
The gateway ships from the factory with a dust cover installed in the RS232
(MMI) port. To minimize contamination of the port’s electrical contacts, keep
this dust cover in place whenever the RS232 port is not in use.
Connect the RJ45 end of the RS232 cable to the gateway’s RS232 port, and
connect the DB9 end to the computer’s serial port. Make sure that CONFIG
switch #7 is in the “OFF” (up) position to force the RS232 port to act as the
serial console. If the unit is currently using the RS232 port for control protocol
communication, then it must be rebooted (powered down and then back up
again) with CONFIG switch #7 in the OFF position to enable the serial console
on the RS232 port.
14.1.3 Application Configuration
As previously mentioned, any PC communication software and PC serial port
can be used. The software configuration example given here will be for
Windows HyperTerminal communicating via COM1.
Figure 10 shows the “Connect To” tab of the properties window for COM1.
Figure 11 shows the window that appears when “Configure” is selected in the
“Connect To” tab. Figure 12 shows the “Settings” tab of the properties window.
Most of these settings are their default values: usually the only change needed
is the “Bits per second” setting shown in Figure 11.