Waters Network Systems
User’s Manual
Page 127
GSM-2116 and GSM-2124
7.0 Maintenance
The possible causes for a no link LED status are as follows:
The attached device is not powered on
The cable may not be the correct type or is faulty
The installed building premise cable is faulty
The port may be faulty
7.1 Examples
1. Computer A connects to Computer B but cannot connect to Computer C.
a. The network cable from Computer C may be faulty. Check the link/act status of
Computer C on the LED indicator. Try another network device with this connection.
b. The network configuration of Computer C may be faulty. Verify the network configuration
on Computer C.
2. The uplink connection function fails to work.
a. Please check the uplink setup of the Managed Switch to verify the uplink function is
enabled.
3. The console interface does not appear on the console port connection.
a. The COM port default parameters are: Baud Rate: 57600, Data Bits: 8, Parity Bits: None,
Stop Bit: A, Flow Control: None. Check the COM port to confirm that it is working
property in the terminal program and that you are using the correct COM port.
b. Check the RS-232 cable is to make sure it is connected to console port on the switch
and the COM port of PC.
c. Check to make sure the COM port of the PC is enabled.
