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Configuration changes for the entire Model 24SII DES are made through the master configuration port which is Port 1 of Module 1. Port 1 of Module 1 must always be a serial port to allow configuration to occur. The master configuration port has access to the configuration of all ports on the Model 24SII DES and can program all options of the configuration mode one module at a time.
A serial computer connected to a port other than Port 1 of Module 1 may access configuration mode and configure ports on its module only. However, configuration changes are limited; several options - Port Designation, Port Select Code, I.D. Page Message, and I.D. Page Printing Schedule - may be made only through the master configuration port.
Before the master configuration port can access the configuration mode, all ports on the Model 24SII DES must be inactive (i.e. all red LEDs must be off) and there can be no print jobs in the buffer. Once the master configuration port has accessed the configuration mode, the LEDs for Port 1 of Module 1 and the LEDs for the selected module will illuminate and will remain illuminated while configuration is occurring. All devices connected to the selected module for configuration will be unable to communicate with the Model 24SII DES while configuration of that module is occurring.
Before a computer not connected to the master configuration port can access configuration mode, the LEDs for its module must be out (i.e., no activity on the module) and there can be no print jobs in the buffer for any port on that module. Once the computer has accessed configuration mode for its module, the LEDs for that module will illuminate. All devices connected to the module will be unable to communicate with the Model 24SII DES while configuration for the module is occurring.
NOTE: Parallel computer ports may not be used for configuration, as communication is only