SDM-9XXX Series Hardware Installation Guide
4-14 Memotec Inc.
4.9.2 High-density DSP Module
The high-density DSP module (HD-DSP) can be installed to support a greater number of
voice calls.
• A maximum of one HD DSP module can be installed on theSDM-9120, SDM-
9220, or SDM-9230.
A single high-density DSP module supports 60, 80, 100 or 120 timeslots. Maximum 120
voice channels per DSP.
NOTE: High-density DSP modules require NetPerformer software version 10.3.5 R01
or higher. Earlier software versions will report a hardware problem and log an
error.
CAUTION:: The high-density DSP module is intended for the SDM-
9120, SDM-9230, SDM-9606 and SDM-9620 only. DO NOT replace
the high-density DSP module with a DSP intended for the SDM-
9360, SDM-9380 or SDM-9585.
Figure 4-8: High-density DSP module
Notched edge
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