3Com CS/2500 Installation Manual page 62

4-14 C 4: C
HAPTER ONFIGURATION
1 From the Change Parameters menu in the Firmware Configuration
Utility, type .
S
The System Default Configuration menu appears:
1 - Change default memory map to CS2000/2100
2 - Configure port(s) as RS-232
3 - Configure port(s) as RS-422
4 - Enable/Disable automatic RS-422 port selection (pin
25)
Current Configuration:
Default memory map
RS-232 ports
RS-422 ports
Auto RS-422 select
2 To change a port to RS-422, type
A prompt appears, explaining that any ports you type will be configured
for RS-422, while others will be configured for RS-232. At the prompt,
type the numbers of the ports to be reconfigured and press the Return
key. You do not need to separate the numbers by spaces or commas. To
change all ports to RS-422, type
The System Default Configuration menu reappears, showing the changed
configuration.
If you change the console port to RS-422, but do not change your
console to match, the server reverts to automatic RS-422 selection mode.
This prevents you from being "locked out" of the monitor if the port
configuration does not match the console type.
3 To change a port back to RS-232, type
At the prompt, type the numbers of the ports to be reconfigured and
press the Return key. Again, you do not need to separate the numbers by
spaces or commas. To change all ports to RS-232, type
4 To enable automatic RS-422 port selection (for pin 25 only), type
This option allows you to connect a mix of RS-232 and RS-422 devices
to the serial ports without configuring the ports individually. When an
RS-422 connector is attached to a serial port, the port detects the
CS2500/2600
0 1 2 3 4 5 6 7 8 9
Disabled
.
3
.
A
.
2
.
A
.
4