3Com 3C17500 Installation Manual page 8

8 C 1: S 8800 C
HAPTER WITCH
Module LEDs
OMPONENTS
Console Port
The console port is connected to the configuration terminal using an RJ-45
connector. You can use the console port for system debugging, configuration,
maintenance, management, and loading application files.
The console port can also be connected to a modem for functions such as remote
system debugging, configuration, maintenance, and management. You can
configure the baud rate on the console port.
Table 8 lists console port specifications.
Table 8 Console Port Specifications
Specification
Port connector
Port standard
Baud rate
Transmission distance
Services
AUX (Modem) Port
The AUX port uses an RJ-45 connector and serves as a backup port for the console
port to connect a background terminal or a modem for remote system debugging,
configuration, maintenance, and management. Table 9 lists AUX port
specifications.
Table 9 AUX Port Specifications
Specification
Connector
Standard
Functionality
The module LEDs show the status of the I/O modules, as described in Table 10.
Table 10 I/O Module LEDs
LED
RUN
ALM
Description
RJ-45
Asynchronous EIA/TIA-232
9600 bps (by default)
15 m (45 ft)
Connects with character terminal
Connects with local or remote PC serial port and runs terminal
emulation on a PC (a pair of modems are required for a
remote connection)
Description
RJ-45
Asynchronous EIA/TIA-232
Connects a serial port of a PC (through a Modem pair for a
remote PC) and runs terminal emulation on the PC.
Status description
Green or off — The module failed or has not been inserted.
Green flashing, slow — The module is working normally.
Green flashing, fast — The module is booting or is not
registered successfully.
Off — The module is working normally or has not been
inserted.
Red or red flashing — The module failed or is not working
normally.