VX 55 B Compact Line CATV Amplifier

Category : Distribution amplifier Compact Line

The VX 55 B is a remote feeding universal line amplifier that has one active output and additional slots for return channel amplifiers, control modules, diplex filter modules and splitter/tap modules. All settings can be accessed via an OH 41 handset or an Android app via Bluetooth.

  • Compact 1 GHz / 1,2 GHz high level CATV amplifier
  • Remote powered
  • All settings (gain, slope etc.) by WISI control unit (OH 41 Handset) or Android app via bluetooth
  • Includes interface for NMS functionality: HMS or DOCSIS
  • Management functionality according to EN 60728-14 available (ICS setting)
  • Diplex filters and splitter / tap modules pluggable
  • High level upstream amplifier pluggable
  • ASLC module pluggable (VX 58B)
  • Additional universal plug in modules

 

Down-Stream / DS

Frequency range downstream 85...1218 MHz (1 GHz/1,2 GHz equalizer switchable)
Gain downstream 36 dB (± 0,75 dB), (single output)
Frequency response ≤ ± 0,5 dB
Noise figure ≤ 6,5 dB @ 1 GHz, ≤ 8,0 dB @ 1,2 GHz
Output level 115 dBµV (CENELEC 42 Ch. (CSO/CTB ≥ 60 dB), flat)
Output level 118 dBµV (CENELEC 42 Ch. (CSO/CTB ≥ 60 dB), 9 dB slope @ 862 MHz)
Output level 109 dBµV (all QAM (138 x 256 QAM), EN60728-3-1, flat)
Output level 111 dBµV (all QAM (138 x 256 QAM), EN60728-3-1, 12 dB slope @ 1218 MHz)
Input return loss ≥ 20 dB (-1,5 dB/Oct.)
Attenuator downstream 0...20 dB (0,1 dB step)
Interstage attenuator downstream 0...20 dB (1 dB step)
Equalizer downstream 0...15 dB (0,1 dB step)
Interstage equalizer downstream 0...15 dB (1 dB step)
RF test points - 20 dB

Upstream (US)

Frequency range upstream 5...204 MHz (65/ 85/ 117 MHz optional)
High pass filter switchable 12 MHz
Gain upstream 30 dB
Frequency response upstream ≤ ± 0,5 dB
Noise figure upstream ≤ 5,5 dB
Output level 115 dBµV (CLC/TS50083-3-3 (BER ≤1 E-8, MER ≥35 dB), 5...65 MHz (6 x 64 QAM))
Output level 110 dBµV (CLC/TS50083-3-3 (BER ≤1 E-8, MER ≥35 dB), 5...204 MHz (24 x 64 QAM))
NPR (>50 dB) EN60728-3 16 dBµV/Hz (max. input level (60 MHz load), 26 dB dyn. range)
NPR (>50 dB) EN60728-3 12 dBµV/Hz (max. Input level (200 MHz load), 23 dB dyn. range)
Return loss upstream (in / output) ≥ 20 dB (-1,5 dB/Oct.)
Attenuator upstream input 0...30 dB (1 dB step)
Attenuator upstream output 0...30 dB (1 dB step)
Equalizer US 0...15 dB (0,5 dB steps)
ICS, US 0/ -6/ < -45 dB
Upstream test point -20 dB
RF injection point -20 dB

General data

RF connectors PG11/F
Impedance 75 Ω
Supply voltage 27...65 V AC
Power consumption 24,0 W (ASLC module max. 2,5 W, Transponder max. 3,5 W)
Remote power current in and outputs < 10 A
Surge protection power supply 2 kV (1,2/50 µs pulse EN61000-4-5)
Hum modulation @ 7A, f > 15 MHz > 70 dB
Ambient temperature -20...+65 °C
Protection class IP67
EMC EN 50083-2
Surge protection RF ports 6 kV (1,2/50 µs pulse EN61000-4-5)
Dimensions (width x height x depth) 260 x 215 x 100,4 mm

NMS / Handset / BT App Functionality

Downstream

Monitoring: control level deviation, attenuator, equalizer, slope settings, pilot level state, pilot frequency, RF power level, 5V/24V supply voltage
Configuration: input attenuator, interstage attenuator, input equalizer, interstage slope, attenuator output 1, ASLC adjustment, equalizer frequency 1/1,2 GHz
Alarms: pilot level too high/low, control level deviation

Upstream

Monitoring: attenuator/slope setting, ICS switch position
Configuration: input attenuator, output attenautor, slope, ICS, hp on/off