2.1.1. SS7 Interface Boards

SS7 interface boards (Intel® NetStructure™ SS7 boards) are intelligent SS7 signaling boards for use in PC-compatible computers. Intel® NetStructure™ SS7 boards combine on-board support for the SS7 common channel signaling protocols, one, two, four or eight interfaces depending on the board type, and CT Bus local PCM time slots on a mezzanine bus. A dedicated on-board processor ensures that performance is independent of the load on the host PC. Downloadable operating software makes the board easy to upgrade when protocol specification changes are necessary.

The Intel® NetStructure™ SS7 ISA (PCCS6) board is available with one or two E-1 or T-1 line interfaces, and because SS7 signaling is carried separately from the PCM stream in some situations, a V.35-compatible serial interface is also provided. The SCbus connection allows system integration with the complete set of Intel® Dialogic solutions and a wide range of third-party voice, data, and fax products. A digital cross-connect switch allows voice and signaling channels to be connected between the line interfaces, the SCbus time slots, and the protocol processor. Only one Intel® NetStructure™ SS7 ISA (PCCS6) board can be used in a system.

The Intel® NetStructure™ SS7 PCI board comes with four E-1/T-1 interfaces and an H.100 PCM Highway.

The Intel® NetStructure™ SS7 CompactPCI board provides up to eight E-1/T-1 interfaces, V.11 (V.35-compatible) serial ports, and an H.100 PCM Highway.

Figure 3, Figure 4, and Figure 5 show some configurations that use the Intel® NetStructure™ SS7 ISA (PCCS6) board in conjunction with Intel® Dialogic boards in a single chassis that in each case supports up to 256 ports. Table 1 summarizes the features and benefits of each configuration.

Table 1. Intel® NetStructure™ SS7 ISA (PCCS6) Board Configurations - Features and Benefits  

Configuration	Features	Benefits
Intel® NetStructure™ SS7 ISA Board Configuration 1	T-1/E-1 line with SS7 signaling connected to the Intel® NetStructure™ SS7 ISA board Voice channels routed through the Intel® NetStructure™ SS7 ISA board via the SCbus SS7 T-1/E-1 managed by the Intel® NetStructure™ SS7 ISA board	Multiple signaling reliability with up to three signaling links
Intel® NetStructure™ SS7 ISA Board Configuration 2	SS7 link and bearer channels enter through Intel® Dialogic network interface board T-1/E-1 with SS7 Signaling channel connects to a voice board The SS7 signaling is routed to the Intel® NetStructure™ SS7 ISA board via the SCbus	SCbus bus clocking managed via Intel® Dialogic boards All voice and data resources managed by Intel® Dialogic boards
Intel® NetStructure™ SS7 ISA Board Configuration 3	The SS7 link is connected via a synchronous V.35 connection All T-1/E-1 trunks (bearing voice circuits) enter through Intel® Dialogic network interface boards	Separates the signaling channel from the bandwidth channels All signaling controlled using V.35 clocking via two V.11 connections on the Intel® NetStructure™ SS7 ISA board

Figure 3. Intel® NetStructure™ SS7 ISA (PCCS6) Board Configuration 1

The key features in this configuration are:

• The T-1/E-1 line with the SS7 signaling is connected to the Intel® NetStructure™ SS7 ISA (PCCS6) board
• B-channels are routed through the Intel® NetStructure™ SS7 ISA (PCCS6) board to voice resource via SCbus
• The SS7 T-1/E-1 is managed by the Intel® NetStructure™ SS7 ISA (PCCS6) board
• Other T-1/E-1 trunks are managed by Intel® Dialogic network interface boards

Figure 4. Intel® NetStructure™ SS7 ISA (PCSS6) Board Configuration 2

The key features in this configuration are:

• SS7 link and bearer channels enter through Intel® Dialogic network interface board
• All voice and data resources managed by Intel® Dialogic boards
• T-1/E-1 with SS7 signaling connects to a voice board
• The SS7 signaling is routed to the Intel® NetStructure™ SS7 ISA (PCCS6) board via the SCbus

Figure 5. Intel® NetStructure™ SS7 ISA (PCSS6) Board Configuration 3

The key features in this configuration are:

• All T-1/E-1 trunks (bearing voice circuits) enter through Intel® Dialogic network interface boards
• The SS7 link is via a synchronous V.35 connection

Note: The V.35 signaling is actually done via two V.11 ports using a using 26-pin D-type connector.

See the documentation accompanying the Intel® NetStructure™ SS7 ISA (PCCS6) board for more detailed information.

Note: Global Call SS7 does not support multiple Intel® NetStructure™ SS7 boards in the same system. The SIU is the preferred solution for configuring multi-board configurations.

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