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www.cooperbussmann.com/wirelessresources
Cooper Bussmann 5073E-T Managed Ethernet Switch User Manual
Rev Version 1.1
DDM
To configure digital diagnostic monitoring (DDM) functions, choose
Maintenance
-->
Diagnostics
-->
DDM
.
DDM enables you to monitor real-time parameters of the SFP ports and set whether the port logs alarm events to
the Syslog on the switch.
Figure 86 Diagnostics - DDM
Syslog
When selected, the port will log alarm events to the local Syslog on the switch.
Port No.
Select this checkbox to display the SFP module information. This assumes that the
SFP module is installed and connected to the switch via a fiber cable.
Type
Alarm and warning type of the SFP default threshold.
Temperature
Internal temperature of the SFP (default threshold and current value).
Vcc
Supply voltage of the SFP (default threshold and current value).
TX Bias
Bias current of the SFP (default threshold and current value).
TX PWR
Transmit power of the SFP (default threshold and current value).
RX PWR
Receive power of the SFP default threshold and current value.
Apply
Click to apply the settings.
Refresh
Click to refresh the page.
6.8 Troubleshooting
Follow these steps to troubleshoot switch problems.
1. Verify that you are using the right power cord or adapter (DC 12–48V).
WARNING Do not use a power adapter with DC output greater than 48V, or it may damage the device.
2. Verify that you are using the proper UTP/STP cable to construct the user network.
Use unshielded twisted-pair (UTP) or shield twisted-pair (STP) cable for RJ-45 connections, depending on the
connector type on the switch. Use 100Ω Category 3, 4 or 5 cables for 10 Mbps connections, 100Ω Category 5
cable for 100 Mbps connections, or 100Ω Category 5e/above cable for 1000 Mbps connections. In addition,
make sure that the length of any twisted-pair connection does not exceed 100 meters (328 ft).
3. Use the LED indicators to help diagnose the problem.
To assist in identifying problems, the switch can be easily monitored through the panel indicators, which