Serial Client Application Interface (repost)(repost)

We need a PMS (Property Management System)? Interface written to communicate between a DMOD (Digital Movie on Demand system). This would ideally take the same framework as? a previous interface we have had written (source code and docs for this can be supplied to developer),? however communiation between the DMOD Interface Linux sever, and the PMS server is done over a serial connection in this interface version in the previous one it? was TCP/IP based. Received messages from the PMS? would go into a mysql database on DMOD using? a configuration file to define and setup? ? (ideally the same approcah as the? TCP/IP interface we already have)? outgoing messages from the DMOD to the PMS? would be received on a network port and then sent over the serial port to the PMS in the required format. I have a technical document describing the serial interface protocol which I can supply. Unfortunately this time around we don't have a PMS? emulator so testing has to be done at this end? via the PMS provider, which can? take some time to schedule testing and get results? so? the ability to read and clearly understand the technical document is important. Deliverables for this project will be in the form of full coommented source code along with RPM binaries suitble for a Linux? RHEL5 distribution