LX 15 S 20A0 Full Spectrum Transmitter external modulated
Category : Optopus optical transmitter
The WISI OPTOPUS LX 15 S 2xx0 Transmitter series is part of WISI's CCAP migration solution. It is ideal for cost-effective transmission of full-spectrum 1.2 GHz channel loads over fiber.
- Broad frequency range for DOCSIS 3.1
- Wide transmission reach for capacity utilization of centralized headend sites
- Cost-efficient solution for broadcast and full-spectrum transmission of downstream signals
- Tunable wavelength (optional) enables flexible assignment in DWDM systems
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RF signal path |
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| Frequency range | 47...1218 MHz |
| Nominal level BC-input | 78 dBµV (per PAL ch.) |
| Nominal level NC-input | 82 dBµV (per QAM ch., 6 dB backoff to PAL) |
| Level control NC | -2...+2 dB |
| Level control composite RF | -5...+5 dB (ALC switchable) |
| Slope control | -2...+2 dB |
| Frequency response | -0,5...+0,5 dB |
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Optoelectronic properties |
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| Laser type | Temperature stabilized DFB laser |
| Wavelength | 1555.75 nm (100 GHz DWDM, ITU channel 27) |
| Optical output power | > +5 dBm |
| Transmission length | 0...65 km |
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SBS suppression |
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| Relative intensity noise (RIN) | < -155 dB√Hz |
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Signal quality, mixed load (30 ch. PAL + 60 ch. QAM256) |
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| 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) |
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Signal quality, all-QAM loading (120 ch. QAM256 258...1218 MHz) |
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| Modulation error rate (MER) | >41 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) |
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Signal interfaces |
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| RF return loss | >20 dB |
| Decoupling NC/BC input | >50 dB |
| Input test port | -20 dB (relative to BC input) |
| Output test port | 75 dBµV (at 5% OMI) |
| Optical return loss | >40 dB |
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Connectors |
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| F-socket rear | 2 pcs. (BC input, NC input) |
| F-socket front | 1 pcs. (Test port: composite input / driver output switchable) |
| SC-APC connectors | 1 pcs. (opt. output) |
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General data |
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| Dimensions (width x height x depth) | 30 x 133 x 320 mm (Optopus module) |
| Power consumption max. | <9 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 |
| EMC | EN 50082-1, EN 50082-2, EN 50083-2, EN 55022 class B |