The
provides a wide range of high density digital signal processor (DSP) modules and a comprehensive set of converged, voice, video, vocoder, fax and data media processing functions. This section describes the possible DSP density values on
devices (
,
,
,
, 5400) and the
device according to their DSP module configurations.
| Info |
|---|
|
Channel densities of the and the are dynamically determined according to resources (MIPS and memory) required by particular codecs in use. The 5110, 5210, and 5400 platforms use DSP2x modules. |
Comparison of SBC DSP Modules
Two types of DSP cards are used on
platforms. The
,
, and 5400 platforms use DSP2x modules, and the
and
use the SPS100 modules. The number of transcoded sessions supported on the DSP2x and SPS100 modules varies by codec. Available platform bandwidth may also limit sessions depending on
packet size.
The
platform uses the high density DSP-LC type of modules.
The table below describes the card differences and associated platforms.
| Caption |
|---|
| 0 | Table |
|---|
| 1 | SBC Core DSP Models Per Platform |
|---|
|
| | DSP25 | DSP20 | SPS100 | DSP-LC |
|---|
| SBC Platform | | | | |
|---|
| Customer Installable |  | |  | |
|---|
Maximum number of cards per platform | 4 | 1 | 3 | 4 |
|---|
| Hot-swappable | | | | |
|---|
|
| Info |
|---|
|
Mixing DSP20 and DSP25 cards (both within a chassis and between active/standby servers in HA scenario) is not supported.
For example, if -A contains DSP25 in slot 1-3, -B must also have a DSP25 in slots 1-3. As another example, if -A has a DSP20 in slot 1, -B must not have anything other than a DSP20 in slot 1. |
| Info |
|---|
|
Only one DSP20 is allowed in an chassis, and it must reside in slot 1. |
Additional topics in this section: