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PANDUIT® DPoE™ Power Patch Panel User’s Guide Issue 2.2
Part Number: PN378A
16
Table 7: Basic Troubleshooting Guide
Problem Possible Causes and Solutions
The panel status LED does not light when power
is applied to the unit.
1. The power supply fuse may be blown. Check
the fuse on the DPoE™ Power Patch Panel
power supply.
2. The power connection may be bad. Check the
physical connection and make sure the voltage
polarity is proper.
3. No power is available at the panel. Make sure
the power supply is plugged in and operational.
4. The keyed power connector is not seated
properly. Reseat the power connector.
The patch panel status LED is flashing green but
no power is being applied to the connected
powered device(s). The port status LED over the
port(s) where power should be provided is off.
1. The device is not connected properly to the
DPoE™ Power Patch Panel. Make sure that
the cable to the connected devices is properly
terminated on the panel for the type of power
needed (IEEE 802.3af-2003 or Alternate PoE)
1
.
2. The cable is not punched down securely. Re-
punch the 110 connections.
3. The attached power device is not 802.3af-2003
compliant or legacy Cisco compliant. Make
sure that the attached device meets either of
these standards. Also try to connect the device
to another port to see if it powers on.
4. The port Administration Control setting is set to
OFF in the EM. The Element Manager must be
used to set the port Administration Control to
ON. (See page 38, Edit Port Information, for
more information.)
The panel status LED stays solid red after power
is connected and over 20 seconds has elapsed.
1. The power supply voltage is either less than 46
volts or greater than 57 volts. The panel should
be immediately disconnected from power and
the input power should be corrected.
The DPoE™ Power Patch Panel is providing
power to the end device, but there is no data
connection (i.e., the Ethernet connection is not
working).
1. The switch is not properly connected to the RJ-
45 jacks on the front of the panel or the switch.
Check for proper connections and establish the
connections or reseat these if required.
2. The switch port may not be active. Check with
the local IT person to see if this is the case and
correct it.
3. The data pairs (1,2 and 3,6) are not properly
terminated on the rear of the DPoE™ Power
Patch Panel. Re-punch the port(s) and test the
connection again.
1
If a port is wired as Alternate POE, both IEEE 802.3af-2003 Powered Devices as well as legacy Cisco
Powered Devices will be detected and get powered up. If a port is wired as POE, only the IEEE 802.3af-
2003 Powered Devices will be detected and get powered up.