January 2019 37
PLT-01628, Rev. D.2 Troubleshooting
6.3 Troubleshooting configuration problems
If there are PAM operation problems, follow these steps to troubleshoot the problem:
႑ Examine the PAM configuration (Setup Mode page).
႑ Enable additional message logging and download the logs using the pivCLASS Reader Services.
႑ Consult your provider.
6.3.1 Troubleshoot pivCLASS Reader Services communication
If the PAM is not communicating with the Reader Services, verify the following:
႑ The network cable is good between the module and the hub/switch/server.
႑ The Reader Services is up and running.
႑ The Reader Services IP address is correctly specified in the PAM Setup Mode.
႑ The Reader Services TCP port is correctly specified in the PAM Setup Mode.
႑ The PAM routes IP traffic to the pivCLASS Reader Services (contact your network administrator for
assistance).
႑ SSL is enabled for PAM communications and that certificates are correctly installed on the PAM/Server.
6.3.2 Troubleshoot communication issues
The following provides information on possible issues that may cause breaks in communication between the
PAM and the pivCLASS Service.
Issue Description Solution/Workaround
Noise on power
input to PAM
Some power sources are not well
filtered and cause noise to be
passed to the power input on the
PAM. This noise then couples onto
the Ethernet communications
causing network communication
issues.
Use a UL 294 rated PACS power supply as directed in the
user manual and required by UL.
Note: A linear or switching power supply with lossy linear
post regulator filter is likely to provide the best results.
We do not recommend the use of low cost two-prong
switching supplies with very high noise and ripple i.e.
exceeding 10%.
PAM ground lug
not connected
The PAM is installed and the built in
ground lug is not connected to an
electrical ground causing a
fluctuating ground reference on the
system, primarily impacting the
Ethernet communications.
Connect the ground lug to an electrical ground on the same
circuit as the PAM power supply.
Doing so will make sure the PAM is grounded and no ground
loops are generated.
“Green” power
dropping voltage
Newer Ethernet switches with
"Green" power can cause a drop in
line voltage for the Ethernet
communications which a Rev A
PAM was unable to handle.
If using a Rev A PAM, it is recommended to disable the
"Green" or auto power negotiation for the port the PAM is
connected to.
PoE capable
switch is being
used
The Ethernet port on the PAM is not
compatible with PoE.
If using a Rev B PAM, it is recommended to turn off the POE
power on the port being used.
If using a Rev A PAM, turn off the POE capability for the port
in the switch the PAM is connected to or use a switch
without POE.
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