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The E1/T1 PCI digital network access board brings with it the entire protocol heritage you would expect from Aculab. With the widest range of protocols available, developers can confidently specify this board with 1, 2, or 4 trunks - up to 124 channels. This trunk board is well suited to match media processing resource boards when extra connections are required.
Familiarity breeds benefits
The digital network access modules employed on this single slot board were first introduced on the award winning Prosody PCI board. The range of type approvals and protocols already achieved are carried across to this trunk only board. This ensures customer familiarity from appearance through to integration, with minimum application change owing to the use of a consistent API.
Networking options
When looking to select a digital network access board, planning of international product roll out should be fully considered. The E1/T1 PCI board offers public or private network connectivity via primary rate signalling modules, which are available in one (PM1), two (PM2) or four (PM4) network line interface (trunk) options. Configuration of trunks is software selectable in terms of termination impedances and for E1 or T1 presentation. Therefore, the same hardware module can be used as either an E1 or T1 trunk interface, under software control. Moreover, with a PM2 or PM4, E1 and T1 trunks can be simultaneously supported on the same hardware module. Benefits can be gained from the increased flexibility in deployed platform hardware, with possible reductions in system board count. Furthermore, this inherent flexibility in configuration of the E1/T1 PCI board ensures the roll out of a truly global product. Optional tone based signalling DSPs for interworking into legacy CAS and R2 derivative infrastructures are also available. To view the full range of protocols, including SS7, see the protocols and approvals page on Aculab’s website.
Faster time to market
In seeking to assist developers and integrators to swiftly bring their solutions to market, Aculab has always employed a consistent API across the whole product range, so the learning curve has a low gradient. All available protocols from our portfolio are posted on our website, enabling developers to collect the software free of charge, when they need it.
On-line help
In case of query, our expert technical support teams are experienced and available to assist via telephone or email with no annual support fees. Additionally, Aculab offers a self help knowledge base for developers, which is accessible via our website.
H.100 interconnection
Synonymous with PCI, H.100 specifies the PCM interconnection between computer telephony boards. The E1/T1 PCI board takes full advantage of the increased timeslot count (4096) over MVIP (512) and SCBus (1024) – important when aiming to architect high density solutions.
Basic signal processing functions
In addition to the optional DSPs used in support of signalling in tone based networks, a second set of optional DSPs (up to four) are offered to fulfil some functions appropriate to a line board in non-tone based network applications . The DSP modules are the same, but perform different functions in different board locations. Either or both may be employed. Each function is written in an algorithm that runs on a per DSP basis and can be downloaded under a cost free licence from Aculab’s website.
Conferencing of two parties can be achieved, with an added warn tone where there is a need to monitor a two-way conversation.
A-law and µ-law coding conversion allows incoming PCM streams in one format to be changed to the other format (with or without gain), prior to being connected to another network, or speech resource.
Tone generation and detection are required to support applications where single and dual frequency tones are needed for handshaking or navigating through user menus.
Fax tone detection allows the application to control the routing of calls by allocating a DSP resource to ‘listen’ to each incoming channel.
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