3.3.1. TDM Bus Configuration of an Intel® NetStructure™ SS7 Board

For Intel® NetStructure™ SS7 board systems that use the CT Bus (to access voice circuits on a trunk connected to an Intel® NetStructure™ SS7 board, or for routing the SS7 signaling), the CT Bus clocking must be configured.

An Intel® NetStructure™ SS7 board can be configured to take its clock from the CT Bus, acting as an bus "slave", or to take it from one of its E-1 interfaces and act as a bus "master", providing the clock for all other boards on the CT bus.

For the Intel® NetStructure™ SS7 ISA (PCCS6) board, the PCCS6_BOARD command in the config.txt file should have its flags argument set as indicated in Table 4.

Table 4. SCbus Clock Configuration for Intel® NetStructure™ SS7 ISA (PCCS6) Boards 

Configuration	Flags
SCbus Slave	0x00C2
SCbus Master - clock from LIU1	0x0043
SCbus Master - clock from LIU2	0x0047
SCbus Master - Intel® NetStructure™ SS7 board internal clock	0x0042

For Intel® NetStructure™ SS7 CompactPCI and PCI boards, the SEPTELCP_BOARD and SEPTELPCI_BOARD commands respectively in the config.txt file should have the flags argument set to one of the values indicated in Table 5.

Table 5. CT Bus Clock Configuration for Intel® NetStructure™ SS7 CompactPCI and PCI Boards 

Configuration	Flags
CT Bus Slave	0x00C2
CT Bus Master - clock from one of the line interfaces	0x0043
CT Bus Master - Intel® NetStructure™ SS7 board internal clock	0x0042

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