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Pelco Manual C1977M-D (6/02) [ 63 ]
Transmit LED
The orange LED next to the Ethernet 10BASE-T connector should flash briefly whenever a unit transmits
a packet (for example, when accessing the unit with a web browser). If this LED fails to come on, perform
the following checks:
•Are all units connected correctly with the power supply? Check power supplies and connections.
•Did you configure the correct IP address for your unit?
•Is your web browser configuration correct?
•Is the TCP/IP protocol installed on your PC operating system, and is an IP address assigned to the PC?
•Are the subnet mask and gateway properly set up?
Contact your network administrator if you have problems installing your network.
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 quota-
tion 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 LAN Link LED is on. See the
Basic Functioning
section
above for more information.
•Wrong network connection. Verify the IP address is entered correctly and that subnet mask and gate-
way address are set properly.
Otherwise, ask your network administrator.