LX 15 S 40X0 Full Spectrum Dual Transmitter external modulated

Category : Optopus optical transmitter

The WISI OPTOPUS LX 15 S 4xx0 Transmitter series is part of WISI's CCAP migration solution. Optimized for rack-space savings, it is ideal for transmission of full-spectrum 1.2 GHz channel loads over fiber. Its applications include DOCSIS 3.1 HFC and RFoG.

  • Broad frequency range for DOCSIS 3.1
  • Wide transmission reach for capacity utilization of centralized headend sites
  • Tunable wavelength (optional) enables flexible assignment in DWDM systems

RF signal path

Transmitters per Optopus module 2 pcs.
Frequency range 47...1218 MHz
Nominal level BC-input 78 dBµV (per PAL channel)
Nominal level NC-input 82 dBµV (per QAM channel with 6 dB back-off)
Level control narrowcast -2...+2 dB
Level control composite -5...+5 dB (ALC switchable)
Slope control -2...+2 dB
Transmission frequency response -0,5...+0,5 dB

Optoelectronic properties

Laser type Temperature stabilized DFB laser
Wavelength 1538...1563 nm (100 GHz DWDM, ITU channels 18 ... 49 tunable)
Optical output power +5 dBm
Transmission length 0...65 km

SBS suppression

Relative intensity noise (RIN) < -155 dB√Hz

Signal quality, mixed load (30 ch. PAL + 60 ch. QAM256)

Carrier-to-noise-ratio (CNR) >51 dB (Transmission over 40 km fiber, Rx input power 0 dBm)
Composite second order (CSO) >64 dB (Transmission over 40 km fiber, Rx input power 0 dBm)
Composite triple beat (CTB) >64 dB (Transmission over 40 km fiber, Rx input power 0 dBm)
Modulation error rate (MER) >43 dB (Transmission over 40 km fiber, Rx input power 0 dBm)
Bit error rate (BER) <1e-9 (Transmission over 40 km fiber, Rx input power 0 dBm)

Signal quality, all-QAM loading (120 ch. QAM256 258...1218 MHz)

Modulation error rate (MER) >40 dB (Transmission over 65 km fiber, Rx input power 0 dBm)
Bit error rate (BER) <1e-9 (Transmission over 65 km fiber, Rx input power 0 dBm)

Signal interfaces

Electrical reflection loss >20 dB
Decoupling NC/BC input >50 dB
Input measurement socket -20 dB (relative to BC input)
Output test point 75 dBµV (at 5% OMI)
Optical return loss >40 dB

Connectors

F-socket rear 4 pcs. (BC1, NC1, BC2, NC2)
F-socket front 1 pcs. (Test port: composite input / driver output switchable)
SC/APC connectors 2 pcs. (Output 1/2)

General data

Dimensions (width x height x depth) 30 x 133 x 320 mm (Optopus module)
Power consumption max. <18 W
Operating temperature range -5...+45 °C (ETSI EN 300 019-1-3 class 3.2)
Enclosure Classification IP30
Laser safety EN 60825-2 hazard level 1M
Electro Magnetic Compatibility (EMC) EN 50082-1, EN 50082-2, EN 50083-2, EN 55022 Class B