Product Specifications
Product Description
1. Summary:
Design for bi-directional network behind optical receiver. Best effect if use at 1km network. Adopt High gain and output imported module, PHILIPS or Motorola power double module. Perfect bi-directional structure brings installation and debugging convenient.
2. Performance Characteristic:
Adopt Philips or Motorola imported high-gain module to amplify
Equalizer, attenuator have fixed and adjustable structure for selection.
Output splitter or coupler can plug change to make engineering debug more agile.
Forward and reverse fore-and-aft have independent test port, easy to debug.
Return channel adopt Philips or Motorola amplify module, good quality duplex filter, plug fixed attenuators and equalizers, makes it high C/N, easy to debug.
High reliable switch power and strict anti-thunder system fit for safe steady work in worse weather.
Suitable large or middle-size bi-directional network main trunk signal transmission, can substitute imported and famous brand machine.
3. Performance Parameters:
Item Unit PARAMETER
WB8127-K-XX WB8127-K-XX WB7127-K-XX WB8130-K-XX WB5127-K-XX WB5130-K-XX
Down Transmission
Frequency MHz 47/87~862 47/87~750 47/87~550
Rated Gain dB 27 30 27 30 29 32
Min Fill Gain dB ≥27 ≥30 ≥27 ≥30 ≥29 ≥32
Rated Input Level dBμV 72
Rated Output Level dBμV 99 102 99 102 99 102
Flatness in Band dB ± 0. 75 ± 0. 5
Noise Figure dB ≤10
Return Loss dB ≥16
C/CTB dB ≥67 ≥63 ≥70 ≥66 ≥70 ≥66
C/CSO dB ≥64 ≥62 ≥66 ≥64 ≥66 ≥64
Group Delay ns ≥10 (112. 25MHz116. 68MHz)
Signal to Hum Ratio % <2
Gain Steady dB -1. 0~+1. 0
Upgo Transmission
Frequency MHz 5~30/65
Rated Gain dB
Min Fill Gain dB
Max Output Level dBμV ≥110
Flatness in Band dB ± 0. 75
Noise Figure dB ≤12
Return Loss dB ≥16
Carrier to Second Order Inter modulation Ratio dB ≥52
Group Delay ns ≤20(57MHz/59MHz)
Signal to Hum Ratio % <2
Hangzhou Topu Optic Co., Ltd was established in 2005, which Located in the HangZhou Hi-Tech Development Zone. Taking advantage of the modern broadcast and optic fiber communication technology, we are specializing in R&D of CATV system equipment, and leading manufacturer of HFC broadband Optic Transmission equipment with strong R&D capability in this field.
We have more than 100 staff in which 10% of senior technicians. It has more than 1, 000 square meters standards production assembling line, we have strict QC procedure, each unit of our products will go through 3 layer QC procedure, material checking before production, stability and performance testing after production, packing checking before delivery.
Currently, we supplying to numerous agents, integrated dealers and equipment producers all over the world, most of our products move to South America, Russia and north European countries.
Through keen international business competition in good faith, all of our staffs feel big accomplishment & work under heavy responsibility. In addition, we are much proud of providing our invaluable customers with our high quality, high reliability, high efficiency, competitive products.
