Safecom INGRESS GATE technology (Patent p)UPSTREAM NOISE BLOCKER

Solving the “Funneling Effect” at HFC & RFoG networks

CLEAN UPSREAM = HIGHER SPEED BROADBAND NETWORKS

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.

The Concept & Benefit:

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.

Stand alone home upstream noise blocker or Ingress Gate embedded inside Home amplifier (Active , Passive return).

Fast & Simple

“Passing” Upstream

“Falling” Upstream

Coax

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About “Funneling Effect”

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”.

RF Noise

Coax

Upstream ON

“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

“Funneling Effect” slow down & interrupt upstream transmission of the internet.

Coax

Modem transmitting Upstream ON

RF Noise .

Cable modem -Upstream signal .

Principle of solving “Funneling Effect” by safecom’s ingress Gate technology: 1. Ingress Gate turn ON upstream channel only when Cable modem is transmitting. 2. Ingress Gate keeps all other upstream paths closed, therefore only one path at a time can transmit a signal to CMTS.3. Upstream gate controlled and synchronized with cable modem, EMTA & setup boxes. 4. Blocking uptream noise without RF or mechanical switch.

INGRESS GATE

INGRESS GATE Eliminates “Funneling Effect”CLEAN UPSREAM = HIGHER SPEED BROADBAND NETWORKS

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INGRESS GATE

Upstream OFF

Upstream OFF

Upstream OFF

Upstream OFF Upstream

OFF

Upstream OFF

Upstream OFF

Modem standby Upstream OFF

INGRESS GATE

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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.

55-1000 MHZ

55-1000 MHZ15dB

5-42 MHZ

5-42 MHZOFF

5-42 MHZ

55-1000 MHZ

Ingress Gate

control

Principle operation of Ingress gate solution

Ingress Gate

control

1. Ingress gate control turns upstream amplifier ON & OFF by controlling DC power without any RF or mechanical switching.

2. When modem is not active upstream amplifier is OFF.Result : RF noise cannot pass upstream amplifier to the network.

Upstream AMP OFF = RF & Ingress Noise Blocked !!!

Upstream OFF

DC Power OFF

DC Power ON

55-1000 MHZ

55-1000 MHZ15dB

5-42 MHZ

5-42 MHZ10dB

5-42 MHZ

55-1000 MHZ

Ingress Gate

control

1. “Ingress gate control” turns upstream amplifier ON & OFF by controlling power of amplifier.2. Ingress gate operation controlled and synchronized by cable modem. 3. When modem is active upstream amplifier is turned ON.

Result : Upstream RF pass to the network ONLY when Modem is active.

Upstream ON

Principle operation of Ingress gate solution

Ingress Gate

control

Network

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

TEST - LOSS % -RX & TX RATE (with very high noise 65dBµV)Modem transmission using Ingress gate.

Results: No Loss or delay during Ingress gate operation .

Competitive analysisSafecom Company 3 Company 2 Company 1

Usage-based upstream Gate Technology : Open only when Modem transmitting

Ingress detection and 6dB attenuation

Frequency Divisionturn theupstream path to ON, OFF, or6 dB attenuation

Technology

Very Low Med High Med Cost

No Yes Yes Yes Needs ingress detection system

Home (by customer or technician ) Network Network Network Installation

No RF disconnections during installation

Disconnect RF signal to large area during installation

Disconnect RF signal to large area during installation

Disconnect RF signal to large area during installation

Broadcast continues during installation

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.