CLEAN UPSREAM = HIGHER SPEED BROADBAND NETWORKS

1. Safecom INGRESS GATE technology (Patent p)UPSTREAM NOISE BLOCKERSolving the “Funneling Effect” at HFC & RFoG networks CLEAN UPSREAM = HIGHER SPEED BROADBAND NETWORKS

2. The Concept & Benefit: • Upstream gateway that fully synchronized with Cable modem. (patent p) • Enable upstream signal only when modem is active. • Blocking upstream & ingress noise by > 28dB without RF or mechanical switch. • Optimizing CMTS-CABLE Modem communication. • Solving the “Funneling Effect” at HFC & RFoG networks. • Lifetime operation.

3. Fast & Simple Stand alone home upstream noise blocker or Ingress Gate embedded inside Home amplifier (Active , Passive return). • Self controlled without needs for expensive extra monitoring or complicated remote operational. • Simple integration outdoor or indoor. • Plug and play device. • Best performance in the market. • Low Cost.

4. “Passing” Upstream

5. “Falling” Upstream

6. 1 About “Funneling Effect” Coax RF Noise RF Noise from CATV subscriber homes flows into the network and blocking the upstream path. “Funneling Effect” shows the structural failing of “the last two way signal over coax part”.

7. “Funneling Effect” slow down & interrupt upstream transmission of the internet. Upstream ON Coax “Funneling Effect” limits performance of the network, slowing and interrupt internet connection while conceals the superiority of the CMTS-CM Model. RF Noise Upstream signal

8. INGRESS GATE Eliminates “Funneling Effect” CLEAN UPSREAM = HIGHER SPEED BROADBAND NETWORKS Modem standby Upstream OFF Modem transmitting Upstream ON Upstream OFF Upstream OFF Upstream OFF Upstream OFF Coax Upstream OFF Upstream OFF Upstream OFF INGRESS GATE INGRESS GATE INGRESS GATE INGRESS GATE INGRESS GATE INGRESS GATE INGRESS GATE INGRESS GATE INGRESS GATE Principle of solving “Funneling Effect” by safecom’s ingress Gate technology: Ingress Gate turn ON upstream channel only when Cable modem is transmitting. Ingress Gate keeps all other upstream paths closed, therefore only one path at a time can transmit a signal to CMTS. Upstream gate controlled and synchronized with cable modem, EMTA & setup boxes. Blocking uptream noise without RF or mechanical switch. RF Noise . Cable modem -Upstream signal .

9. Ingress Gate technology blocks upstream noise by > 28 dB and eliminates the “Funneling Effect”. Enables a clean and free upstream path for maximizing Internet performance.

10. Principle operation of Ingress gate solution 55-1000 MHZ 15dB 55-1000 MHZ Upstream OFF 5-42 MHZ OFF 5-42 MHZ 5-42 MHZ 55-1000 MHZ DC Power OFF Ingress Gate control Upstream AMP OFF = RF & Ingress Noise Blocked !!! Ingress gate control turns upstream amplifier ON & OFF by controlling DC power without any RF or mechanical switching. When modem is not active upstream amplifier is OFF. Result : RF noise cannot pass upstream amplifier to the network. Ingress Gate control

11. Principle operation of Ingress gate solution 55-1000 MHZ 15dB 55-1000 MHZ Upstream ON 10dB 5-42 MHZ 5-42 MHZ 5-42 MHZ 55-1000 MHZ DC Power ON Ingress Gate control “Ingress gate control” turns upstream amplifier ON & OFF by controlling power of amplifier. Ingress gate operation controlled and synchronized by cable modem. When modem is active upstream amplifier is turned ON. Result : Upstream RF pass to the network ONLY when Modem is active. Ingress Gate control

12. Testing INGRESS GATE Home Amplifier Procedure : Combine two frequencies and measure noise level by Spectrum Analyzer. Network

14. Competitive analysis

15. Thank You Safecom INGRESS GATE technology(Patent p) • Best Solution & performance for blocking upstream & Ingress noise. • Enables optimized upstream path of HFC, RFoG • Saves the need for network upgrades. • Ensures top-reliability of Internet , VoIP, & VOD. • Lowest cost.