RGB Spectrum Quadra User's Guide User Manual
F I R M W A R E U P G R A D E S A N D T R O U B L E S H O O T I N G
System Troubleshooting
350-7951
Quadra User’s Guide
113
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No text on a terminal
•
To see your own typed entries, enable the echo mode when
using an ASCII terminal (or terminal emulation program)
to control the system from the RS-232 port.
using an ASCII terminal (or terminal emulation program)
to control the system from the RS-232 port.
•
Use the “
” command to enable or disable the echo
mode.
•
When using an application program running on a computer
to control
to control
Quadra
over the RS-232 port, you may need to
disable the echo mode.
•
Check baud rate and protocol settings.
•
Check that cables are in good condition and connected
correctly.
correctly.
Unreliable control of the
Quadra
from the RS232
port.
•
See the recommendation immediately above. You may
need to disable “
need to disable “
•
Check that the “
” for the
Quadra
and your
console device are set to the same speed.
Unable to connect to the
Quadra
over the network.
•
Check that the
Quadra
is connected to the network using
a standard Ethernet cable.
•
Check that you are using the correct IP address.
•
If you are unable to connect and are sure that IP address is
correct, check the Subnet mask and make sure that it is
suited to your network configuration.
correct, check the Subnet mask and make sure that it is
suited to your network configuration.
•
If you believe the IP address and Subnet mask are correct
but you still cannot connect, check that this is not a
duplicate IP address. Use the IP “ping” command from
the Windows
but you still cannot connect, check that this is not a
duplicate IP address. Use the IP “ping” command from
the Windows
®
command window, and see if there is a
response. If there is a response, turn off
Quadra
and ping
the IP address again. If there is still a response, a duplicate
address exists.
address exists.
Unable to connect to
Quadra
directly from a
PC (peer to peer
connection).
connection).
•
Check that
Quadra
is connected to the PC using an
Ethernet crossover cable. A suitable cable is the Belkin
Part # A3X126-07.
Part # A3X126-07.
•
Check that you are using the correct IP address.
•
If you are unable to connect and are sure that the IP
address is correct, check the IP settings of your PC. Many
PCs are set to work with a DHCP server which is not
present when connecting directly to
address is correct, check the IP settings of your PC. Many
PCs are set to work with a DHCP server which is not
present when connecting directly to
Quadra.
•
If you believe that
Quadra
’s IP address is correct and
your PC has a valid IP address, but you still cannot
connect, check that this is not a duplicate IP address. Use
the IP “ping” command from the Windows command
window, and see if there is a response. If there is a
response, turn off
connect, check that this is not a duplicate IP address. Use
the IP “ping” command from the Windows command
window, and see if there is a response. If there is a
response, turn off
Quadra
and ping the IP address again.
If there is still a response, your PC has been set with the
same address as the
same address as the
Quadra
.
Table D-1.
Troubleshooting Guide(Continued)
Symptom
Recommendations