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X6004 User’s Guide
119
CHAPTER 12
DSP Management
This chapter shows you how to install additional Digital Signal Processing (DSP) modules in
the X6004 and how to manage the DSP resources on the X6004.
12.1 DSP Overview
The X6004 uses Digital Signal Processing (DSP) modules to convert analog audio to digital
signals, and vice versa. DSP modules are classified by the number of channels they are
capable of processing. A normal phone conversation takes up two channels, since the X6004
must encode the outgoing analog audio while simultaneously decoding the incoming digital
audio.
The X6004 contains an onboard DSP module, it is also equipped with a single removable DSP
module by default. You can upgrade the existing DSP module with one that can process more
channels. You can also install a second module to increase the number of calls the X6004 can
handle simultaneously. See the product specification in Appendix on page 283 for details
about the DSP modules on the X6004.
This chapter shows you how to install and uninstall the DSP modules on the X6004. It also
discusses how to manage the DSP resources on the X6004.
12.1.1 Installing a Second DSP Module
Take the following steps to install a second Digital Signal Processor in your X6004.
1 Ensure the power is off and all cables are disconnected. Lay the X6004 upside down on
a flat, dry surface. The DSP hatch is located on the base of the X6004.
2 Unscrew and remove the DSP hatch screw.
3 Remove the DSP hatch cover.
4 Insert the DSP module’s contacts into the connector socket at an angle, as shown in the
figure.
5 Gently press the DSP module downwards, until the two retaining arms click into place.
Replace the hatch cover and the screw.