Dialogic SS7G2X manual Boards and PCMs, Signaling Configuration 1 SS7 Configuration

Chapter 7 Configuration Overview

7.1.2Boards and PCMs

A Signaling Gateway contains a number of SS7 signaling boards located in individual board positions (BPOS). Signaling boards are managed using the CNBOx commands.

An SS7 signaling board can terminate up to two PCM (PCM) trunks for connection to either a Signaling End Point (SEP) or Signaling Transfer Point (STP). When configuring the PCM, the user can specify whether it should act as E1 or T1 as well as its frame format (FF) and line code (LC). The configuration of a PCM also determines whether the port signal is to be used as the external clock synchronization source of the Signaling Gateway. Each PCM can be assigned a synchronization priority (SYNCPRI) specifying the priority it has within the Signaling Gateway to receive the external clock for the system. The PCM in the system with the lowest numbered synchronization priority that is active and in service provides the clocking source for the Signaling Gateway. If the current PCM providing clock for the system goes out of service, the PCM with the next highest clock priority that is in service provides clock for the Signaling Gateway. If a PCM’s synchronization priority is set to 0, that PCM never provides clock for the system.

PCMs are managed using the CNPCx commands.

Figure 5. Physical Configuration

E1

PCM 1-3

PCM 2-3

E1

PCM 1-4

PCM 2-4

T1

PCM 3-3

PCM 3-4

Primary

Clock

Source

Secondary

Clock

Source

Tertiary

Clock

Source

Figure 5 demonstrates a Signaling Gateway configured with three boards and six PCMs, four E1 and two T1 connect to primary, secondary and tertiary clock sources. Example MML for the above configuration is:

CNBOI:BPOS=1,BRDTYPE=SPCI2S-4-2,SIGTYPE=SS7;

CNBOI:BPOS=2,BRDTYPE=SPCI2S-4-2,SIGTYPE=SS7;

CNBOI:BPOS=3,BRDTYPE=SPCI2S-4-2,SIGTYPE=SS7;

CNPCI:PCM=1-3,PCMTYPE=E1,SYNCPRI=1;

CNPCI:PCM=2-3,PCMTYPE=E1,SYNCPRI=1;

CNPCI:PCM=1-4,PCMTYPE=E1,SYNCPRI=2;

CNPCI:PCM=2-4,PCMTYPE=E1,SYNCPRI=2;

CNPCI:PCM=3-3,PCMTYPE=T1,SYNCPRI=3;

CNPCI:PCM=3-4,PCMTYPE=T1,SYNCPRI=3;

7.2Signaling Configuration

7.2.1SS7 Configuration

A Link Set (LS) is the set of signaling links between an Originating Point Code (OPC) on the Signaling Gateway and an adjacent Destination Point Code (DPC). When specifying a link set the user can specify the MTP type and point code size (SS7MD), the SS7 Network Identifier (NI) and the logical network (NC) it belongs in. Link sets are managed using the C7LSx commands.

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