Removing A Dsp Module; Dsp Management; Figure 99 Installing A Dsp Module; Figure 100 Removing A Dsp Module - ZyXEL Communications IP PBX X6004 User Manual

Chapter 12 DSP Management

Figure 99 Installing a DSP module

12.1.2 Removing a DSP Module

Take the following steps to remove a DSP module from the 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 retaining screw.
3 Remove the DSP hatch cover.
4 Gently press the retaining arms away from the module, as shown in the figure. When
both retaining arms are disengaged from the module, the module springs up to its angled
position.
DO NOT pull the DSP module up without first disengaging the retaining arms.
This could damage the module or the connector on the X6004.
5 Remove the DSP module. Replace the hatch cover and the screw.

Figure 100 Removing a DSP Module

12.2 DSP Management

The X6004 automatically detects the number of DSP channels available for processing
telephone conversations. The number of DSP channels is based on the DSP modules installed
on the X6004. The X6004 automatically assigns DSP channels to service the analog phone
connections (FXS ports) available on the X6004. It also automatically assigns DSP channels to
the analog connections to the PSTN (FXO ports). The remaining DSP channels can be divided
between the SIP connection via the X6004 and conference calls on the X6004.
Consider the following when making decisions on how to assign the DSP channels on the
X6004:
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X6004 User's Guide