Having a problem with a windows XP pro SP2 networking problem thats
got me stumped. The network goes from a touchscreen which transmits a small amount of ascii based data less than one k/byte per transmition as its only sending a sequence number (label number) acessing a data base for a product registery then applying the weight data and sending that info to a datamax printer who already has all the necessary fonts for the different lables.
This is a tried and proven system with 8 years running with the older model of NOax touchscreen.
Problem is this I recieve these newer touchscreens try to connect via a fixed IP address (already checked to make sure its not a duplicate) when I connect I find that the autonegotiate for 10m/bit or 100 m/bit does not reliably work after experimentation
the only sorta stable connection I can maintain is at 10 m/bit half duplex. The line runns thru a data switch 10/100 M/bit
which we set the port to match the touchscreen settings of 10 m/bit. This then transmits to another data switch via a fibre optic tranciever (10 m/bit) All seems OK with the connection
in that there is no packets lost on ping tests however the minute the screen tries to send the sequence number I start getting excessive packet losses thats shuts down the application program. We had the Cat 5 line tested with a data acquisition tester and find no problems 70M effective 10/100 Mbit capability.
The data switch has 9 other touchscreens (older model that maintain stable connections) Thinking it was a faulty network adaptor we try another new style touchscreen and encounter the same problem.
Any takers? I'm at the point of considering that the problem
is the 10 M/bit fibre optic tranceivers (which we had repolished) or something to do with the response time after going thru several components.
Needless to say this has our IT dept at head office stumped as well as myself so any advise would be appreciated.
got me stumped. The network goes from a touchscreen which transmits a small amount of ascii based data less than one k/byte per transmition as its only sending a sequence number (label number) acessing a data base for a product registery then applying the weight data and sending that info to a datamax printer who already has all the necessary fonts for the different lables.
This is a tried and proven system with 8 years running with the older model of NOax touchscreen.
Problem is this I recieve these newer touchscreens try to connect via a fixed IP address (already checked to make sure its not a duplicate) when I connect I find that the autonegotiate for 10m/bit or 100 m/bit does not reliably work after experimentation
the only sorta stable connection I can maintain is at 10 m/bit half duplex. The line runns thru a data switch 10/100 M/bit
which we set the port to match the touchscreen settings of 10 m/bit. This then transmits to another data switch via a fibre optic tranciever (10 m/bit) All seems OK with the connection
in that there is no packets lost on ping tests however the minute the screen tries to send the sequence number I start getting excessive packet losses thats shuts down the application program. We had the Cat 5 line tested with a data acquisition tester and find no problems 70M effective 10/100 Mbit capability.
The data switch has 9 other touchscreens (older model that maintain stable connections) Thinking it was a faulty network adaptor we try another new style touchscreen and encounter the same problem.
Any takers? I'm at the point of considering that the problem
is the 10 M/bit fibre optic tranceivers (which we had repolished) or something to do with the response time after going thru several components.
Needless to say this has our IT dept at head office stumped as well as myself so any advise would be appreciated.