Upstream RF Noise Blocker-28dB

 

• Essential key element of CMTS-CABLE Modem Synchronization .
• Fully compliant with all Cable Modems & Set top box communication.
• "Clean up" the upstream band to enlarge the spectrum for ultra high speed internet.
• Protect IP data against upstream RF noise impairments.
• Docsis 3.0 + , Docsis 2.0 , docsis 1.0 approved.
• Save the need for network upgarde.

Safecom's UPSTREAM NOISE BLOCKER is a revolutionary cost-effective RF noise suppression technology based on the patented IngressGate™ technology that enables CATV operators to optimize the upstream bandwidth and add advanced services with no interference by eliminate the RF and ingress noises reside in the upstream path. Unlike standard solutions for ingress detection and monitoring, Safecom's IngressGate™ technology eliminates 70-90% of the ingress noise by addressing the source of the problem where most ingress noise is created while providing the amplified signal - at the customer premises.   

How does it work?   

Safecom's Upstream noise blocker (US patent 8850505) technology is based on the burst nature of the return path and the random presence of ingress or RF noise. The technology functions as an upstream gateway that allows carrier signals from customer premises into the network only when the home devices are actively transmitting. This mode of operation eliminates most of the ingress noise without any adverse effect on the upstream and downstream signals. Safecom's IngressGate™ technology supports DOCSIS 3.0 that requires switching speed faster than 1.6 μS and ensures the most reliable and cost effecting solution for upstream ingress noise.

Conclusion:

Blocking upstream noise on the RFoG & HFC network using Safecom's noise blocker will allow designers to reach highest performances before expensive upgrading and installing special fiber optics components. 

• RF & ingress Noise reduction by > 28dB.

• Without RF swicth or relay.

• Response time < 1 m sec. (Docsis 3 & Docsis 2)

• No impact of an active return transmission.

• Eliminates the use of filters or other expensive ingress protection components.

• Lowering the noise floor.

• Plug and play device.

• No need for expensive monitoring or useless detection.

• Simple integration outdoor or indoor.

• Without any RF or Mechanical switch.

• Life time operation.

UPSTREAM NOISE BLOCKER ordering info.

§ MODEL IGDA0000TA 5-42MHZ / 55-1000MHZ

§ MODEL IGDA0000TE 5-55MHZ / 70-1000MHZ

§ MODEL IGDA0000MA 5-65MHZ / 80-1000MHZ

For improving system implementation and reducing cost integrated ingress protection drop amplifier enables the simplest way to resolve the ingress problems while at the same time saving the need for additional common drop amplifiers. Safecom offer range of Ingress gate solutions with or /without RF gain at the upstream /downstream.

Upstream Ingress Protection with RF Active forward/return gain

Electric Performance- DOCSIS 3 Approved

 

UPSTRAMNOISE BLOCKER Model IGDA0000TA,TE,MA Specifications
Parameter		Unit	Min value	Typical value	Max value
Forward (Downstream) path
Frequency range		MHz	55,65,85		1000
Gain		dB	0	0
Flatness		dB		±0.75	±1.0
Return loss		dB	16	18
Output level 1		dBmV	25
Noise figure		dB		3.5	4
Group delay	Channel 2	ns			25
	Channel 3	ns			10
	After CH5	ns			5
CTB 1		dBc			-73
CSO 1		dBc			-62
Xmod1		dBc			-70
HUM		dBc			-70
Reverse (Upstream) path
Frequency range		MHz	5		42,55,65
Upstream Noise Blocker Isolation Modem / set top box passive upstream				>28
Gain		dB		0
Flatness		dB		±0.5	±0.75
R/L RF OUT	Upstream“ON”	dB	16	>18
R/L RF IN	Upstream “ON”			>18
R/L RF OUT	Upstream “OFF”	dB		>8 Upstream Blocked
Noise figure- Upstream pass		dB		6.5	7
Group delay	5-42MHz	ns			20
	10-36MHz	ns			5
2nd Inter modulation 2		dBc			-60
3rdInter modulation 2		dBc			-57
Thresholdlevel 3		dBuV		75±1
Operating time		ns		1000
INGRESS GATE Display			LED ON when upstream ON
1.Input flat 10dBmV，77 chennels/6MHz
2.Input 2 un modulated series carriers @ 27, 33MHz, out level 58dBmV.
3.One un-modulation carrier wave.

 

	Advanced ANADIGICS ADA 10000 IC chip.
	Tongue & Groove casing - ensures top reliability & 0% failure rate.
	Gold-plated, beryllium copper construction for better corrosion resistance, impedance matching & less path distortion.
	SCTE compliant F-port (360° pin structure, push or pull force 8-Newton).
	Very-low noise & distortion performance.
	High linearity +15 dBm IIP3.
	Frequency division: 5-1000 MHz, 42-54 MHz, 30-47 MHz & 65-87 MHz.
	Withstands IEEE 6kV wave surge.
	SCTE & Time Warner Cable standards compliant.
	Available in multiple configurations (see table below).
	Corrosion resistant.
	Waterproof & moisture-proof.
	Zinc alloy die-cast.