
Setting Up an RS-232 Connection 45
RS-232 Interface
Functions
Setting Up an RS-232 Connection
The RS-232 interface requires a connection from the hub to a dumb terminal or to a PC with
a terminal emulator program. A PC is required for updating firmware. To access the hub
configuration menus, you can use either a PC or a dumb terminal.
Setting Up a Connection to a PC
Setting up a PC connection requires the following equipment:
• FC-AL hub
• A personal computer, such as an OmniBook notebook PC
• A null-modem serial cable
The cable must have a DB-9 female connector for connection to the hub. For example,
for an OmniBook notebook PC, you can use an HP 24542U RS-232 cable, which has
two DB-9 female connectors.
• Terminal emulation software, such as HyperTerminal
The terminal emulator must be capable of ASCII text file transfers and support VT100
or ANSI emulation with no flow control.
To establish a connection, do the following:
1. Connect the serial cable between the RS-232 port on the hub and a serial (COM) port on
the PC.