User Manual DDS200 Digital Demodulation System 070-9952-00

Preparation for UseInstalling OptionsVarious options (hardware modules) are available to expand the DDS200.Detailed instructions describing the installation steps are enclosed with eachoption. The options can be inserted in the guide rails from the rear afterremoving the covers (top and bottom) and the rear panel.Proceed as follows:1. Power off the unit, and disconnect all external connections, especially theAC supply connector.2. Remove rear blue feet (two screws each).3. Push the covers (top and bottom) to the rear, and remove them.4. Remove the four Phillips screws at the left and right on the side.5. Fold down the rear panel assembly.6. Install the option according to the instructions that are packaged with it.7. Reassemble the unit in reverse order.8. Do a software update, if necessary (see page 1–13).9. Perform a test according to the enclosed instructions and the functional testdescribed in Functional Test on page 1–15.Installing a printerThe DDS200 has a Centronics printr interface connector (X32) on the rear panel.The 25-pin, D-type, female connector is PC-compatible. The type of printr canbe selected in the setup menu (refer to printr Menu – Selecting the Type ofprintrs on page 2–23). The HARDCOPY key makes a print-out of the currentdisplay. Commercial PC printr cables can be used for connecting the DDS200 tothe printr.Serial InterfaceThe unit is provided with a serial RS232 interface connector (X33) on the rearpanel. Via this interface, the unit can be remote-controlled from a PC. Afirmware update can also be carried out via the RS232 interface. For detailedinformation about configuring the interface, refer to RS232 Menu – Setting theRS232-Interface Parameters on page 2–22. The remote command set isexplained in Remote Control and in Appendix B: IEC/IEEE-Bus Interface. Athree-core shielded cable with crossed transmit and receive lines is sufficient forremote control; for updating the firmware, a null modem cable is required.1–16 DDS200 Digital Demodulation System User Manual