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Conecte sua central telefônica a linhas ISDN
Newly redesigned and simplified, the Sangoma B500 S/T BRI interface board delivers superior audio quality and scalability. It expands from two to four ports of BRI, with optional telco-grade hardware echo cancellation.
A single PCI Express slot hosts the connection for up to 4 ports and ensures common synchronous clocking for all channels with no signalling issues.
The B500 consists of a Remora BRI daughterboard mounted on the AFT PCIe board. The Remora BRI card has 2 sockets, each of which can accept an S/T BRI module. One S/T BRI module has two S/T four wire interfaces, which support TE or NT modes of operation.
The B500 has 4 RJ-45 ports, each port can handle one S/T four wire BRI interface with a single standard Cat-5e shielded twisted-pair cable.
Technical Specifications
Operating Systems
Windows® 2003, Windows® XP, Windows® Server 2008, Windows® Vista, Windows® 7
Production Quality
The B410P enables Basic Rate ISDN S/T connectivity for Asterisk users outside of North America and connects eight digital voice channels (four ISDN lines for a total of eight B-channels) per card to an Asterisk server.
The B410P is a half-length, full-height universal 3.3V and 5.0V 32-bit PCI 2.2 card supporting four BRI S/T interfaces. Each of the four ports of the B410P can be independently configured for TE or NT mode, with an optional PWR400M module for supplying power to ISDN telephones. The B410P features on-board hardware echo cancellation performing 64ms or 512 taps per channel for each of the eight voice channels.
As placas Digium da série TE são de alto desempenho e custo efetivo, com interfaces telefônicas digitais que suportam os ambientes T e E. Os ambientes são seleccionáveis em uma base por cartão ou por porta. Esta característica permite a tradução da sinalização entre os equipamentos T1 e E1, e permite conectar bancos de canais econômicos T1 com circuitos E1.
Às vezes, pode acontecer que o seu sistema de comunicações Ip seja ecoado, isso pode acontecer como resultado dos tempos de espera que um sistema VoIP geralmente tem, ao contrário de um sistema analógico. Como resultado, sua conversa pode sofrer um eco.
Embora muitos dispositivos já incorporem o cancelador de eco, a Digium oferece o hardware de cancelamento de eco de alto desempenho da Digium (HPEC). O hardware de cancelamento de eco também é vantajoso ao lidar com grandes volumes de chamadas ou um grande número de canais que, de outra forma, sobrecarregariam a CPU, o que resultaria em baixa qualidade potencial de áudio. Aqui estão alguns de seus recursos:
Os Gateways Digium VoIP oferecem o melhor valor agregado para a conexão de telefonia tradicional (T1/E1/PRI) para IP (SIP).
O software de gateway é baseado no Asterisk é gerenciado por meio de uma interface gráfica do usuário (GUI), que permite fácil navegação e configuração. Eles têm um design integrado de economia de energia com um processador de sinal digital (DSP) altamente eficiente, permitindo excelente manuseio de todas as operações relacionadas à mídia.
The Sangoma A500 S/T BRI interface card delivers superior audio quality and scalability. Expand from two to twenty-four ports of BRI
* without hardware echo cancellation.
A single PCI or PCI Express slot hosts the connection for up to 24 ports and ensures common synchronous clocking for all channels with no signaling issues. The card is 100% software configurable.
• From 2 to 24 ports are supported. Mix TE and NT modes, as required. Changing modes requires no jumpers — simply invert the colour-coded module
• Support for Asterisk®, FreeSwitch™, and Yate as well as other Open Source and proprietary PBX, Switch, IVR, and VoIP gateway applications
• Single synchronous PCI and PCI Express interface for all 24 BRI interfaces
• Six ports per RemoraTM card
• Dimensions: 2U Form factor: 187 mm x 55 mm for use in restricted chassis; includes high quality, tested 2 m 8-pin RJ45 port splitter cables and short 2U compatible mounting clips for installation in 2U rackmount servers
• 32 bit bus master DMA data exchanges across PCI interface at 132 Mbytes/sec for minimum host processor intervention
• Autosense compatibility with 5 V and 3.3 V PCI busses
The Sangoma A500 S/T BRI interface card delivers superior audio quality and scalability. Expand from two to twenty-four ports of BRI with optional telco-grade hardware echo cancellation.
Adding an additional Remora card to your existing A500 allows you to add an additional 6 BRI ports, by installing one to three BRI modules. Each A500 can support up to 4 cards, including the base PCI card, for a total of 12 available ports. This card connects to your existing A500 through the use of an external bus connector, which attaches to the rear of the card. It is therefore recommended that you install these cards next to each other in the chassis.
NOTE: When ordering this card to add to your existing A500, please ensure you select the right bus connector for the total number of cards, including the base PCI card, you expect to install in your system. For example, if you plan on having 12 ports in total, you will need the "2 Card Bus Connector", or for 24 ports, you will need the "4 Card Bus Connector".
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