Raritan Computer Paragon II User Manual

Page 9

Paragon II - Frequently Asked Questions

Page 9 of 10

v1034R2 August 2007

I can’t see all of the P2ZCIM
names, but the status
seems correct. How can I
fix this?

The Master P2ZCIM may have been confused. Usually the chain will fix
itself, if the user waits a couple of minutes. If that does not work, issue
the Refresh command.

It took a while for the
P2ZCIM to be reported as
off. Why?

Due to the possible occurrence of data collisions, a P2ZCIM status must
be checked three times to determine whether or not it is off. This
detection proceeds more quickly if the size of the chain is roughly
proportional to the number of P2ZCIMs in the chain. Resize the chain to
optimize the performance.

I disconnected a complete
P2ZCIM chain from the UMT
and added it to the tail of
another P2ZCIM chain. I
was finally able to see all
the P2ZCIMs but it took
almost a minute. What
happened?

Before connecting the chains, you had one Master per chain. There only
can be one Master per chain. When you connected the chain, there
were suddenly two Masters in the chain. It took a while for this condition
to clear. This is normal operation.

Keyboard and Mouse
behavior are sometimes
erratic when powering up a
computer. Why?

When computers are powered up, P2ZCIM(s) try to obtain
communication addresses from the Master P2ZCIM. Using the keyboard
and mouse during power-up increases the chance of data collision,
increasing the chance of missed keystrokes and erratic mouse behavior.
Generally the user will see slow keyboard/mouse performance instead of
dropped keyboard and mouse packets. If the Master P2ZCIM loses
power, the user may be switched off from the P2ZCIM. We suggest
waiting for power-up to be completed before communicating with the
P2ZCIMs.

Is there a way to find the
Master P2ZCIM in a chain?

Yes. The P2ZCIMs LED status can be used to detect the CIM states.
Please read the LED Status section for more information.

Can Raritan’s Z-Series ZU42
CIMs work with P2ZCIMs?

No. P2ZCIMs use a different protocol, which is not compatible with
ZU42.

A P2ZCIM is beeping every
30-40 seconds and the LED
is blinking very rapidly.
Why is this happening?

A P2ZCIM will beep once every minute to notify the user that it did not
get a Communication Address. The user should check to make sure that
the number of P2ZCIMs has not exceeded the Chain size. If the size is
correct, the problem should disappear after a couple of minutes. If not,
check again to make sure the chain size is correct. The beeping
P2ZCIM will increase the Communication Address Request delay to 40-
55 seconds. The data collision introduced by continued Communication
Address requests should not affect keyboard and mouse functionality;
however, if many units cannot get Communication Addresses, keyboard
and mouse response may slow down. Beeping P2ZCIMs can also occur
if the two chains are connected together to make one chain.

The P2ZCIM beeps when it
first receives power. Why?

This is normal operation. The beep notifies the user that the CIM has
powered up correctly.