1. . PR.E 6 rev. 1.1The content of this presentation in confidential Teleco S.p.A. RP 926 and RP 926S presentation (2/4 wire G.shdsl regenerator)

2. The content of this presentation in confidential RP 926 AND RP 926S FUNCTIONAL BLOCK DIAGRAM G.shdsl 2/4 wire NTULTU RP DC/DC Local power Remote power RP 926S power supply path RP 926 power supply path

3. The content of this presentation in confidential RP 926 AND RP 926S FUNCTIONS Both devices implement the function of regeneration of the G.shdsl signal and they are used when: 1.The distance between LTU and NTU is longer than the limit of the standard G.shdsl link length. 2.The S/N ratio falls under the minimum threshold for the G.shdsl signal because of external noise sources (TLC lines that trouble, electrical lines, motors etc.) The RP 926S can be remote powered both locally and through remote power. The RP 926 is completely remote powered and it lets pass the remote power supply coming from exchange.

4. The content of this presentation in confidential RP 926 – RP 926S The G.shdsl RP 926 regenerator was born as G.shdsl 4 wire repeater on point to point link for the transmission of E1 stream (2048 Kbit/s) and Nx64. Subsequently the applicative software has been up to date to allow it to be use on G.shdsl connections between DSLAM and CPE. The features of the RP 926 – RP 926S regenerators are: Low power consumption (<3W) Small dimensions Reliability Complete management through EOC G.Shdsl channel (ITU-T G.991.2) Flexibility Easy to install.

5. The content of this presentation in confidential MECHANICAL CHARACTERISTICS The RP 926 is the stand-alone version and it is made by a printed circuit board which is put in a plastic housing with the following dimensions: 103x153x27 mm. The RP 926S is the rack version of the RP 926 and it has been designed to be inserted into the proper case of the series CN 929. CN 929.2 for street cabinet installation CN 929.5 for pole box installation

6. The content of this presentation in confidential SHDSL REGENERATOR STRUCTURE HW platform Core (Boot program) DSL Firmware Applicative Firmware

7. The content of this presentation in confidential DESCRIPTION OF THE STRUCTURE OF THE SHDSL REGENERATOR TELECO S.p.A. SHDSL regenerator is made by: One hardware platform which is made by: Shdsl Infineon Chipset PEF24624 SDFE4 Infineon 16 bit CPU DC/DC converter Main firmware program (boot program) that detects firmwares loaded into the flash memory and perform DSL firmware download into Infineon chipset and application specific firmware download into onboard RAM. Application specific firmware that implements the functional tasks of the regenerator and that can be changed in consequence of the customer request or link characteristics. DSL module that contains the Infineon chipset.

8. The content of this presentation in confidential APPLICATION FIRMWARE DEVELOPMENT At the moment are foreseen two typologies of application firmaware: Point to point proprietary links: DSLAM-CPE links:

9. The content of this presentation in confidential POINT TO POINTPROPRIETARY LINKS The software is developed in collaboration with the Customer regarding: EOC proprietary messages support The adaptation of the activation strategy to the link characteristics Tested compatibility: Infineon Socrates Infineon SDFE4 Globespan Orion ( rel. 1.7-1.8-2.1-2.2-2.3-2.5 )

10. The content of this presentation in confidential DSLAM-CPE LINKS The reference for the development of the firmware is the standard ETSI TS 101 524 Collaborating with the Customer we can develop the EOC proprietary messages management. Compatibility tested with: Globespan Orion ( rel. 1.7 - 1.8 - 2.2 - 2.3 - 2.5) DSLAM ALCATEL CPE THOMSON Speedtouch 610s

11. The content of this presentation in confidential CONCLUSIONS The RP 926 e RP 926S regenerators are devices extremely flexible and they can be easily adapted to the link typologies that customer needs to realize, offering at the same time excellent characteristics of reliability and compactness at low prices.