Case Study No.0002
Wireless Warehouse – Multiple Sites
A longstanding customer needed to replace their wireless system
and handheld terminals that were near the end of their life cycle
with a system that used new technology and would integrate into
multiple hosts simultaneously. They also needed to have visibility
of who was using which terminal to track errors and breakage.
Current 900mhz wireless system:
• was not 802.11b compliant
• did not support current security measures
• was fast becoming obsolete
• Required use of unique terminal id to track warehouse inventory
• Current manufacturer was purchased by another vendor and
repair parts would be hard to find
• Did not support 802.11b wireless standard
• Did not support new wave of software allowing over the air
configuration changes and program loading
• Battery life was becoming an increasingly bigger issue.
Employees had to carry extra batteries in their pocket to complete
an entire shift. Batteries were not being recharged or worse, becoming
• Current software was purchased by another vendor. New vendor
would not support old software with new patches/fixes.
• Could not access their VT100 Unix host and 3270 mainframe
host at the same time from the same terminal
Wireless network management:
• Needed to view entire multiple site wireless network from
a single site
After customer’s issues were outlined, we realized a solution
could be put together with off the shelf hardware and software by
making minor modifications. We installed a new wireless backbone
utilizing faster, cheaper, more reliable 802.11b standard. We put
new terminals on the new backbone that would not be end of life
for years using lithium ion batteries that lasted an entire shift.
After a short period to configure their software, they could access
both a VT100 telnet session and a 3270 mainframe session from the
same terminal at the same time. A script was written to allow the
terminals to logon to their host without user intervention and the
software vendor was involved to customize their software to allow
a unique id number for each terminal based on the last octet of
the IP address to be sent to the host from the logon script. This
new software consisted of three pieces, a terminal resident program,
a web based gateway software to reside on a server, and a wireless
network management tool.
To track the terminals required a creative piece of custom software
that interacted with the new gateway software. AIDEA was up to the
challenge. A program was written to allow users to check in or out
terminals based on a barcoded employee id and the terminal’s
barcoded serial number. The software modified the logon script so
a terminal could not logon to the host until the check out procedure
was complete. This software also included reports to allow supervisors
to see terminal/user usage.
After the install/integration was complete, the customer had a
wireless system that not only solved their issue list, but will
give them trouble free service for years.
AIDEA’s custom terminal check in/out software
Symbol’s PDT6846 terminals
Symbol’s AP4121 access points
ConnectRF’s Twin Client terminal emulation software
ConnectRF’s Powernet gateway software on a Windows 2000 server
ConnectRF’s Vision wireless network management software
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