----- Original Message -----
July 17, 2002 3:10 PM
Subject: RE: AVOS
"BAD CHECKSUM" message
you specify the version of Central Count you are running. It is odd that
all four memory cards seem to produce a bad checksum and the issue will be looked
into. Please attempt to narrow down your operation before a “BAD
CHECKSUM” message occurs if possible.
correct however in that the memory card only holds little information.
Four parameters to be exact, which is the phone number, user name, password and
host IP address.
[mailto:firstname.lastname@example.org] On Behalf Of Juan
Sent: July 17, 2002 1:01 PM
Subject: RE: AVOS "BAD
is a test that is done to verify the integrity of memory devices. There
are many ways to
checksum tests, but in keeping it simple what it means is that once any
information is written in to a memory device, the software counts all the
digital representation (ONE Bits) that represents the data. That total is
placed in a particular part of the memory device as a check sum. During
tests the memory device is recounted making sure that the Data stored and
recorded earlier (represented by the checksum) on the memory device is equal to
the checksum if finds now. If it matches, well no problem, if it
doesn’t then a check sum error will be declared.
possible culprits are the memory devices themselves (bad memory card or bad
batch of memory cards, or the memory card reader failure, or bad software.
making sure that power is shut off before inserting and removing AVOS memory
card to see if problem persists.
card holds IP address and password info for central count. Although insignificant
this is still data and it will be checked sum.
[mailto:email@example.com] On Behalf Of Lesley
Sent: Wednesday, July 17, 2002
Subject: AVOS "BAD
Johnson County, Kansas
had been receiving a "BAD CHECKSUM" message intermitted on one of
their 32mg AVOS cards. We replaced all four of their AVOS 32mg cards with
AVOS 128mg cards. Now Kris is getting the "BAD CHECKSUM"
message on all of the 128mg cards. As I understand it, in using the AVOS
in a central count environment with each scanner connected to the internal
network, the main function of the AVOS card is to hold the IP address in
memory, meaning that if the cards are not working the worst that is happening
is that the IP address has to be re-entered every time want to transmit.
1. What is causing the
"BAD CHECKSUM" message and how do we fix it?
2. Is the AVOS card doing
anything other than holding the IP address in a network connected central count