V400P Interface Card
Description: OpenSS7 Hardware Selection V400P.
These cards are no longer supplied. It may be possible to obtain used or surplus cards on computer auction websites. If you have one of these cards that was previously used with Asterisk, Yate or FreeSwitch you can repurpose them for use with OpenSS7. When purchasing cards, seriously consider the newer C400P/E cards.
The T400P and E400P cards have a lower level of signalling performance due to the lack of on-board HDLC functions. Transfers to the host processor over the PCI bus use PCI I/O ports and memory mapping.
These cards are supported by the X400 driver.
The function of the T/E400P Channel driver is to provide for the termination of 2.048Mbps, 1.544Mbps, 64kbps and 56kbps digital paths. This driver provides direct access to the channelized or unchannelized T1 or E1 digital paths to OpenSS7 media and signalling protocol modules as well as providing T1 or E1 management, framing, coding, alarms, and synchronization.
Following are some features of the V400P card:
Following are the advantages of the V400P card:
Following are the disadvantages of the V400P card:
Ultimately, the performance limiting factor of the T400P and E400P cards is the bandwidth of the PCI bus and the ability of the processor to perform Soft-HDLC and TDM switching in software. A 350MHz processor is capable of processing the bandwidth of an entire E400P card (124 signalling links) with a combined link throughput of 8.192 Mbps.
For the OpenSS7 VoIP Switch, this performance is more than adequate. A medium grade 2GHz PC should be capable of handling 2 cards (248 SS7 links) with adequate excess capacity available for background operations.
These cards are very cost-effective and can provide 64kbps SS7 links at average incremental interface cost of approximately $4.00 USD per signalling link.
Note: Some of the information in this hardware selection guide may be incomplete, incorrect, out of date, or inconsistent with the vendor's actual offerings. Also note that this hardware selection guide does not constitute an endorsement of anyone's product or service. The authors of the OpenSS7, their sponsors, agents and representatives will not take responsibility in it.
Please use good business sense when considering any vendor's products and consult with the individual vendor before making any decisions. Please do, however, investigate the product and service offerings of the sponsors listed on our Sponsors page: it is through your support of our sponsors that the OpenSS7 Project exists and is funded to continue.
|Last modified: Sun, 19 Oct 2014 13:44:54 GMT
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