Triax OTXS 20 Optical Transmitter for Hybrid Networks

Further details of Triax OTXS 20 Optical Transmitter for Hybrid Networks

The TRIAX OTXS 20 is a 1310 nm optical transmitter for HFC networks. The unit uses a directly modulated, temperature-controlled DFB laser and features automatic processor-controlled laser drive adjustment.

TRIAX OTXS 1310 nm Optical Transmitter

• Wavelength: 1310 nm
• Optical output power: 20.0 mW
• Optical output power: 13.0 dBm
• RF frequency range: 47-862 MHz
• RF input level: 85 ±3 dBµV (84 PAL D channels)
• RF test point: -20 dB (front F connector)
• In-band flatness: ±0.75 dB
• Return loss: >18 dB

The unit uses automatic processor-controlled laser drive adjustment according to RF input level and channel loading. It also incorporates multichannel pre-distortion and GaAs amplifier technology.

Optical system

• Laser type: DFB, temperature controlled
• CTB (Popt in = -1 dBm, 84 PAL D channels): >65 dB
• CSO (Popt in = -1 dBm, 84 PAL D channels): >60 dB
• C/N (Popt in = -1 dBm, B = 5 MHz): >51 dB

A 32-bit microprocessor provides automatic monitoring and control of the laser to maintain a constant output level.

Connectivity and monitoring

• RF connector: F connector
• Fibre optic connector: SC/APC
• Monitoring interfaces: RS232 for software and RJ45 LAN Ethernet
• Display: 160 × 32 dots

The unit is housed in a 19-inch, 1U (44.45 mm high) enclosure.

Technical specifications

• Power supply: 110-253 VAC (50 MHz)
• Dimensions: 480 × 44 × 380 mm