HDO272 Receiver

The HDO272 is a dual digital optical receiver for fibre optic return path link in CATV networks. HDO272 has two independent optical receivers. One optical wavelength carries two RF return paths and the module has four RF return path outputs. Optical input connectors can be factory installed at the rear or at the front panel. Other standard features include a field-replaceable fan unit and remote control of all adjustments.

Features at a glance:

  • Two independent digital optical return path receivers with one optical wavelength carrying two RF return paths
  • Four return path RF segments and outputs
  • Wide input power and output level range
  • Small form factor family, 2 RU height
  • Fibre connectors can be located at the rear or at the front panel
  • Low power consumption

Product Specifications

Optical parameters
Light wavelength
1260…1620 nm
Input power
-24…-5 dBm
Transmission distance
75 km
Number of optical inputs
Digital parameters
Data rate
5 Gbps in one optical link
Digital to analog conversion
12 bits
RF parameters
Frequency range
5…85 MHz
Maximum output level
(AC node input level + 36) dBμV
RF impedance
75 Ω
Output return loss
18 dB
Level control range
30 dB
RF test point
20 dB
Number of RF outputs
System parameters
System parameters System consists of AC node with AC7700, HDO272 and 75 km fibre.
Link gain
37 dB
±0.75 dB
CINR peak
49 dB
CINR dynamic range
12 dB within 40 dB CINR window
49 dB
Power consumption
9.5 W
Supply voltages
25 V / 310 mA
6.3 V / 290 mA
RF connectors
F female
Optical connector
SC/APC or E-2000/APC
Field replaceable fan
2U x 7HP x 380 mm
1.5 kg
EMC compatibility
EN 50083-2
Operating temperature range
0…+45 °C
Storage temperature range
-20…+60 °C
Operating relative humidity
0…85 %
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