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DSP Resource Points

Overview

The DSP Series 2 card uses a pooling scheme for dynamically allocating resources through Resource Points. Resource Point licensing provides the DSP Series 2 with flexibility, scalability, and redundancy. Each function type has associated licensing per channel, measured in Resource Points. The total available Resource Points used for Tone Reception, conferencing, and File Playback/Record are managed as a resource pool.

Standard Resource Points

The DSP Card comes standard with 2,048 for each module. You can purchase additional Resource Points in increments of 2,048. When you insert the card in the chassis, the Resource Points are reported to the Matrix Controller card and added to the pool.

Table 8-1 Resource Points Model Numbers

Model Number | Description
CSP-DSP-1310 | One module with 2,048 default Resource Points. Equivalent to a DSP-ONE card with one module.
CSP-DSP-1320 | Two modules with 2,048 default points each, for a total of 4,096 Resource Points. Equivalent to a DSP-ONE with 2 modules.
CSP-BIO-1000 | The Multifunction Media IO card. This card must be purchased for every DSP Series 2 card for which play or record functionality is to be used (not including temporary playback/record functionality).
CSP-LDP-1000 | An additional 2,048 resource points

Benefits

• Flexibility

Resource Points are allocated only when they are used. This results in better utilization of resources and improved performance.

• Scalability

Licensing DSP resources through Resource Points, you can buy only as much functionality and capacity as you need, and upgrade incrementally as your needs increase.

• Redundancy

Licensed Resource Points are made available to the other DSP Series 2 cards in the CSP. If a DSP Series 2 card fails, its licensed Resource Points (but not the standard Resource Points that come with the card) remain in the pool to be used by the remaining cards.

Resource Point Checking

When a DSP function is requested, the Matrix Controller card checks that there are enough total Resource Points available to provide the function and that a DSP chip with sufficient channels is available for that function type. If there are no more Resource Points available, or if an appropriate DSP chip is not available, the Matrix Controller card returns a NACK.

DSP Streams

The concept of DSP streams is integral to DSP licensing on the DSP Series 2 card. Each DSP chip on the DSP Series 2 card supports four one-way (simplex) paths: two for transmitting and two for receiving. Each of these paths is called a DSP stream.

Based on these four streams, each DSP chip can be assigned up to four function types. Each stream can support a maximum of 256 channels, depending on available licensed resources and on the function type assigned. Note that Conferencing and File Playback/Record requires two streams (one for transmit and one for receive).

Resource Points
on Card Failure

If a DSP Series 2 card fails, the standard Resource Points are removed from the resource pool. However, all Resource Points purchased through additional licenses remain available in the pool, and may be used by the remaining cards in the CSP.

Configuration

See Downloading License Keys to the CSP.

Digital Signal Processor
Negative acknowledgement to a message.