ATCA VoIP and Video Platforms

Above: KatanaQp ATCA board shown with two (2) SigC5561 VoIP modules and one OC3 STM-1 module populated, forming a complete OC3 G729 gateway.

Above: Front View for KatanaQp ATCA board shown with three (3) SigC5561 VoIP modules and one OC3 STM-1 module populated.

Above: KatanaQp ATCA board shown with three (3) SigC5561 VoIP modules and one OC3 STM-1 module populated.

The pictures at right show the Emerson KatanaQp ATCA platform populated with combinations of the following PTMC modules:

• SigC5561 VoIP module capable of 1152 TDM-to-IP G729 channels (with 64 msec echo cancellation)

• NAT OC3 STM-1 module

TDM data transits a shared CTbus connection between module sites. On the IP side, the SigC5561 modules connect to a GbE network switch on the KatanaQP board, and from there to ATCA backplane GbE ports.

The KatanaQp ATCA board can support up to four (4) PTMC modules.

• KatanaQp ATCA Board

• OC3 STM-1 PTMC Module

• SigC641x-PTMC Octal DSP Resource Board

• SigC5561-7x7-PTMC VoIP Board

As one example, two (2) SigC5561 modules combined with one OC3 module form a complete OC3 G729 gateway (2016 G729 TDM-to-IP channels).

As another example, with four (4) SigC5561 modules populated, one ATCA "blade" can support 4608 simultaneous IP-to-IP G729 calls.

About the SigC5561

The SigC5561 module contains a Texas Instruments / Telogy DSP farm of up to 12 TNETV3010 DSP devices, also known as "Janus" devices. Each Janus DSP has six (6) internal cores running at up to 300 MHz each (600 MHz for specific math operations), shared memory, and TDM and IP peripherals necessary to support high density VoIP operation. The TNETV3010 is TI's highest density voice chip and is widely considered to be the infrastructure VoIP market leader. Combined with Telogy software this is the same solution used by market VoIP leaders such as Cisco, Lucent-Alcatel, Nortel, Ditech Networks, and others. Another category of market leading vendors use the TNETV3010 but write their own DSP software (i.e. do not use Telogy); this includes AudioCodes as one example.