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76 C2900M-B (1/03)
Video LEDs
When lit green, these LEDs indicate the corresponding video input is selected. (In multiplexer
mode, the LEDs change automatically in quick succession.)
TERMINAL PROGRAM
If the terminal program fails to connect to the unit’s terminal port, check the following:
• Is the right COM-port interface on the PC selected for the terminal program, and are the
settings correct? Is the cable connected to the terminal and not the data port on the unit?
Program default settings are 19200 kb/s, 8 data bits, no parity, 1 stop bit (8N1) for the terminal
program.
• If the data exchange between the terminal program and the system still does not work, check
the serial cable. Does the system answer when you enter a question mark?
• Disable the local echo if you see duplicate characters on your screen.
TROUBLESHOOTING A TCP/IP NETWORK USING A PING UTILITY
(Enter the appropriate information where indicated by the quotation marks below. Do not enter the
quotation marks.)
To see if a unit in your network can be reached, try to ping your unit by typing the following
command in a DOS window:
c:\>ping ‘unit IP address’
If it is reached, there will be a response like the following:
Reply from <IP address>: bytes=32 time=NN ms TTL=xxx
If the LAN path is malfunctioning, the ping command will time out. If so, you could have one of the
following problems:
• Wrong physical connections. Make sure the green Ethernet LED is on. See the
Basic
Functioning
section for more information.
•Wrong network connection. Verify the IP address is entered correctly and that subnet mask and
gateway address are set properly.
Otherwise, ask your network administrator.