CATV Blocking Filter

Fibrain optical CATV blocking filters are used to block TV signal with parallel transmission of GPON network at the 1310/1490 nm wavelengths. The product is available in two variants: in a miniaturized pipe housing and in the form of a patchcord thanks to the placement of microfilter inside the SC or LC connector. In contrast to alternative solutions, filter provides suppression of blocked power which not flow back to transmitter and not pose the risk of introducing additional noise and degrading signal quality, often resulting in transmission interference.

Features

  • Low Insertion loss
  • Available with any type of fiber optic connectors
  • Two variants of execution available: miniaturized pipe housing with dimensions of Ø3x15mm and patchcord with built-in filter in SC or LC connector

Applications

  • HFC and cable networks
  • FTTH access networks
  • Other optical telecommunication networks

Technical parameters

TECHNICAL SPECIFICATION

ParameterUnitValue
Transmitted signal bandwidthnm1280-1500
Blocked signal bandwidthnm1540-1650
Insertion loss 1 od transmitted signaldB1.3
Attenuation of CATV signal @1550nmdB≥ 30
PMDdB< 0.1
Return lossdB≥ 42
Storage temperature°C-20 - +70 ⁰C
Operating temperature°C-20 - +70 ⁰C
Fiber type 2G.652D

1 with optical connector

2 possibility of ordering a different type of fiber

 

 

AVAILABLE HOUSING:

1 filter housing in the form of SC (SC APC, SC UPC) or LC (LC APC, LC UPC) connector type is coded in reference system as a input connector

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