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Unfortunately in light of the fact that only a small number of SCLA copies have been sold, I have to increase the price of the software.  This software is now $30 hopefully I will be able to make suffucient money to support Vista..

This software, can save you many hours in testing serial links. For a professional approach use the detailed results in your commissioning reports.

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The SmartBay product range has been released Contract I.T. is going to bring Cabling Certification found in IP networks to CCTV networks.

CUSTOMER COMMENTS

“I work in the oil and gas industry doing automation engineering and installation. I will use the software to setup and test radio links for data communications to the various oil and gas fields.”
Wes Sutton
Marathon Oil Company

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Serial Communications Link Analyser

Question: Could you tell us what the Min Delay and Max Delay function is. I’m assuming it changes the Inter-byte gap. If this is so, could you tell us what the Min and Max delay is in seconds.
Answer:  This has been renamed in the program to Inter Packet Transmission Delay. The application has a timer that controls the rate at which the transmission function is called. This timer is varied from the length of a packet + 0ms to the length of a packet + 10000ms approximately (depends on windows). When the Timer is at 0 then the transmission rate occurs as fast as the computer is capable of transmitting them (depends on Microsoft ActiveX Controls).

Question: Why should I use the Inter Packet Transmission Delay
Answer:  Typically you would set this to be slightly greater than the network lag. to prevent the loss of a packet because it has not been recieved before the next packet in the queue is sent (and the previous transmission is discarded). You wouldn’t set it to the maximum because this slows down the testing proceedure. Remember the network lag figure is for a round trip.

Question : Why should I Vary the packet size
Answer:  This feature was a request by a customer, it has the benefit of matching the packets to the expected “normal” packet on the network you are testing. The main problem with this method is that if a packet of 500 characters in length has a completely missing character (not corrupted) at position 100 then the next 400 characters will be shifted by one character resulting in a character mismatch of around 400 for that packet transmission.

Question: Can I use this application with virtual serial port (VSP) software
Answer:  Yes you can. However I have noticed that this application will cause VSP software to crash under some circumstances, particularily when strict baud rate emulation in enabled in the VSP software. I use some VSP software for development and testing.

Question: Can I use this application with USB Serial Ports
Answer:  Yes you can. However I have noticed the drivers of some USB serial ports can be a bit slower that real serial ports.

Question: Does version 4.0.30 support hardware handshaking.
Answer:  No as of yet this application does not support hardware handshaking, as it has been requested it may be included although generally only paying customers feature requests are persued.